HVAC, IAQ, & Plumbing Services in Hartford, WI

Reliable HVAC services are necessary to combat the extreme weather conditions for which Hartford, WI, is known. The Thielmann Group is here to meet those needs, ensuring your comfort and safety year-round. We understand the importance of a well-functioning HVAC system and clean indoor air quality, so we offer comprehensive solutions designed to keep your home comfortable and healthy.

Our team of highly skilled and NATE-certified technicians is here when you need us the most, offering 24/7 emergency HVAC services to tend to all your urgent repair requests. Are you worried about the cost of replacing your HVAC system? We provide free estimates to help you plan your budget accordingly.

Don’t wait until your HVAC system breaks down. Contact us today at (262) 299-6197 to request our professional HVAC services and experience the difference firsthand! 

HVAC technician performing a service on an outdoor AC unit

Same-Day Heating Services

The Thielmann Group takes pride in offering same-day heating solutions to families throughout Hartford, WI. Our team has experience repairing and maintaining all types of heating equipment, including:

  • Boilers: Whether your boiler needs repair, maintenance, or replacement, our experts can handle it all.
  • Gas furnaces: Keep your home warm with our gas furnace installation, repair, and maintenance services.
  • Oil furnaces: We provide comprehensive solutions for oil furnace systems to ensure your home stays cozy during the coldest months.
  • Heat pumps: Our skilled technicians are well-versed in installation, repair, and maintenance to keep your indoor climate just right.

Reliable Cooling Services

Stay cool during the sweltering summer months with The Thielmann Group’s reliable air conditioning solutions. Our services proudly include installation, replacement, repair, and maintenance for various cooling systems, including:

  • Central air conditioning: We ensure your central AC system runs efficiently to keep your home comfortable.
  • Ductless mini-splits: We offer ductless mini-split installation and maintenance services for homes without ductwork.
  • Packaged units: Our experts are equipped to handle packaged unit systems for both residential and commercial properties.

Trust us to keep your home cool and comfortable throughout the summer season. Call (262) 299-6197 today to schedule AC services in Hartford, WI

Signs You Need HVAC Services in Hartford

Is your HVAC system in need of urgent attention? Here are some signs to watch out for:

  • Inconsistent temperatures: Uneven heating or cooling throughout your home.
  • Increased energy bills: A sudden spike in energy costs can indicate HVAC system inefficiency.
  • Strange noises: Unusual sounds from your HVAC system may indicate a problem.
  • Poor air quality: Dusty or polluted air can lead to health issues for you and your family.

If you notice any of these signs, don’t hesitate to contact The Thielmann Group at (262) 299-6197 for prompt and professional HVAC services

Top-Rated Air Quality Services

Indoor air quality is crucial for a healthy and comfortable living environment. The Thielmann Group offers several indoor air quality solutions to address your specific needs, including:

  • Air purifiers: Improve air quality by removing allergens, dust, and pollutants.
  • Humidifiers: Maintain optimal humidity levels for better comfort and health.
  • Dehumidifiers: Prevent excess moisture and mold growth in your home.
  • Duct cleaning: Remove contaminants from your ductwork for cleaner air.

Breathe easier with our top-rated indoor air quality services. Request IAQ services for your home by calling us at (262) 299-6197 today!

Professional Plumbing Services in Hartford, WI

Your home’s plumbing system is one of the most important, yet often forgotten, systems in your house. When plumbing problems arise, they can turn from inconvenient to down right dirty in seconds. Having a reliable team of Hartford plumbers on your speed dial can make all the difference. Thielmann Heating, Cooling, and Plumbing has been serving homeowners since 1929. This means we understand what your home needs and treat each problem with professional, quality workmanship. 

Our trained, certified team of plumbers in Hartford are able to handle everything from new fixture installations to major pipe repairs, and everything in between. For Hartford, WI homeowners needing fast, reliable plumbing services, Thielmann offers:

  • Water Heater repair and replacement that ensure you always have hot water
  • Drain cleaning to clear buildup and remove clogs
  • Kitchen faucet, sink, and garbage disposal installation and service
  • Bathroom fixtures and toilet repair and installation
  • Minimally invasive pipe repair and replacement to improve water pressure
  • Sump pump services to ensure a dry, safe basement. 

Water Conditioning in Hartford, WI

For residents in Hartford, WI, hard water can damage your home’s plumbing system and shorten the life of your appliances. That’s why Thielmann Heating, Cooling, and Plumbing offers complete water conditioning services designed to help you protect your home. Our team will test your home’s water to help you make the best decision and find the right solution. After all, the cleaner your water, the better you feel when bathing, cleaning, and cooking.

Why Choose The Thielmann Group in Hartford?

The Thielmann Group is proud to be the trusted choice for reliable HVAC and indoor air quality solutions throughout Hartford and the surrounding area. When you choose our team, you can always count on us for:

Don’t compromise on comfort and safety in your home. Choose The Thielmann Group and experience superior service that ensures your home remains a haven of comfort and health.

Call (262) 299-6197 to schedule HVAC or IAQ services in Hartford today!

Read Reviews by Our Customers

Recent Jobs and Reviews in Hartford, WI

Job Locations and Reviews

Performed comprehensive assessment of existing HVAC system for complete replacement estimate. Inspected attic access point and evaluated current ductwork configuration, including insulated supply lines and distribution components. Documented existing infrastructure conditions including duct routing and accessibility constraints. Evaluated electrical service capacity at main breaker panel to determine compatibility with proposed replacement equipment and verify adequate power supply for new system installation. Assessed structural considerations and clearance requirements for equipment placement and future serviceability.
Performed comprehensive assessment of existing HVAC system for complete replacement estimate. Inspected attic access point and evaluated current ductwork configuration, including insulated supply lines and distribution components. Documented existing infrastructure conditions including duct routing and accessibility constraints. Evaluated electrical service capacity at main breaker panel to determine compatibility with proposed replacement equipment and verify adequate power supply for new system installation. Assessed structural considerations and clearance requirements for equipment placement and future serviceability.
Jason G.
Jason G. Checked in
Performed comprehensive assessment of existing HVAC system for complete replacement estimate. Inspected attic access point and evaluated current ductwork configuration, including insulated supply lines and distribution components. Documented existing infrastructure conditions including duct routing and accessibility constraints. Evaluated electrical service capacity at main breaker panel to determine compatibility with proposed replacement equipment and verify adequate power supply for new system installation. Assessed structural considerations and clearance requirements for equipment placement and future serviceability.
Hartford, WI 53027
Completed scheduled HVAC maintenance inspection on furnace/air handler unit #301. Performed visual inspection of evaporator coil assembly, confirming heat exchanger tubing shows normal operational heat discoloration patterns with no signs of damage or refrigerant leaks. Verified all system components, safety labels, and insulation are intact and properly secured. Unit operating within normal parameters.
Completed scheduled HVAC maintenance inspection on furnace/air handler unit #301. Performed visual inspection of evaporator coil assembly, confirming heat exchanger tubing shows normal operational heat discoloration patterns with no signs of damage or refrigerant leaks. Verified all system components, safety labels, and insulation are intact and properly secured. Unit operating within normal parameters.
Nicholas H.
Nicholas H. Checked in
Completed scheduled HVAC maintenance inspection on furnace/air handler unit #301. Performed visual inspection of evaporator coil assembly, confirming heat exchanger tubing shows normal operational heat discoloration patterns with no signs of damage or refrigerant leaks. Verified all system components, safety labels, and insulation are intact and properly secured. Unit operating within normal parameters.
Hartford, WI 53027
Hartford, WI - Completed scheduled prepaid maintenance visit on residential furnace system. Performed comprehensive inspection of unit with access panel removed, checked all internal components including motors, blower assembly, and heat exchanger. Utilized diagnostic testing equipment to verify electrical connections, measure voltage and amperage, and ensure system is operating within manufacturer specifications.
Nicholas H.
Nicholas H. Checked in
Completed scheduled prepaid maintenance visit on residential furnace system. Performed comprehensive inspection of unit with access panel removed, checked all internal components including motors, blower assembly, and heat exchanger. Utilized diagnostic testing equipment to verify electrical connections, measure voltage and amperage, and ensure system is operating within manufacturer specifications.
Hartford, WI 53027
Completed installation of new HVAC furnace unit in utility space with proper venting and drainage configuration. Installed gray metal furnace cabinet with associated ductwork connections, secured white PVC condensate drain and vent piping with appropriate mounting brackets, and completed all electrical connections to manufacturer specifications. System tested and verified operational upon completion.
Completed installation of new HVAC furnace unit in utility space with proper venting and drainage configuration. Installed gray metal furnace cabinet with associated ductwork connections, secured white PVC condensate drain and vent piping with appropriate mounting brackets, and completed all electrical connections to manufacturer specifications. System tested and verified operational upon completion.
Branden B.
Branden B. Checked in
Completed installation of new HVAC furnace unit in utility space with proper venting and drainage configuration. Installed gray metal furnace cabinet with associated ductwork connections, secured white PVC condensate drain and vent piping with appropriate mounting brackets, and completed all electrical connections to manufacturer specifications. System tested and verified operational upon completion.
HARTFORD, WI 53027
Conducted site assessment for mini split installation at brick exterior building. Evaluated exterior mounting location at building corner near downspout and reviewed existing electrical panel capacity with available circuit breaker spaces for new dedicated circuit requirements. Documented installation site conditions and confirmed electrical infrastructure compatibility for proposed ductless mini split system.
Conducted site assessment for mini split installation at brick exterior building. Evaluated exterior mounting location at building corner near downspout and reviewed existing electrical panel capacity with available circuit breaker spaces for new dedicated circuit requirements. Documented installation site conditions and confirmed electrical infrastructure compatibility for proposed ductless mini split system.
Steven S.
Steven S. Checked in
Conducted site assessment for mini split installation at brick exterior building. Evaluated exterior mounting location at building corner near downspout and reviewed existing electrical panel capacity with available circuit breaker spaces for new dedicated circuit requirements. Documented installation site conditions and confirmed electrical infrastructure compatibility for proposed ductless mini split system.
Hartford, WI 53027
# Outdoor Spigot Replacement and Plumbing Repair

Replaced deteriorated outdoor spigot assembly showing significant water damage and corrosion. Installed new copper piping with proper connections and elbow fittings throughout the wall cavity, addressing existing leak issues and structural water staining. All connections were soldered to code and tested for proper function and water-tight integrity.
# Outdoor Spigot Replacement and Plumbing Repair

Replaced deteriorated outdoor spigot assembly showing significant water damage and corrosion. Installed new copper piping with proper connections and elbow fittings throughout the wall cavity, addressing existing leak issues and structural water staining. All connections were soldered to code and tested for proper function and water-tight integrity.
Kyle L.
Kyle L. Checked in
# Outdoor Spigot Replacement and Plumbing Repair Replaced deteriorated outdoor spigot assembly showing significant water damage and corrosion. Installed new copper piping with proper connections and elbow fittings throughout the wall cavity, addressing existing leak issues and structural water staining. All connections were soldered to code and tested for proper function and water-tight integrity.
Hartford, WI 53027
Completed full HVAC system replacement including installation of new Lennox furnace in basement utility area with proper PVC venting and a new outdoor condensing unit mounted on concrete pad. Both units were professionally installed with appropriate electrical connections, ductwork integration, and proper drainage to ensure optimal system performance and efficiency.
Completed full HVAC system replacement including installation of new Lennox furnace in basement utility area with proper PVC venting and a new outdoor condensing unit mounted on concrete pad. Both units were professionally installed with appropriate electrical connections, ductwork integration, and proper drainage to ensure optimal system performance and efficiency.
Rudy L.
Rudy L. Checked in
Completed full HVAC system replacement including installation of new Lennox furnace in basement utility area with proper PVC venting and a new outdoor condensing unit mounted on concrete pad. Both units were professionally installed with appropriate electrical connections, ductwork integration, and proper drainage to ensure optimal system performance and efficiency.
HARTFORD, WI 53027
Responded to no heat call and performed diagnostic inspection of thermostat system. Found thermostat had become disconnected from wall mount base, interrupting power and communication to HVAC equipment. Properly reconnected thermostat to mounting base, verified all wire terminals were secure and making proper contact, and confirmed system restored to normal heating operation with successful call for heat.
Responded to no heat call and performed diagnostic inspection of thermostat system. Found thermostat had become disconnected from wall mount base, interrupting power and communication to HVAC equipment. Properly reconnected thermostat to mounting base, verified all wire terminals were secure and making proper contact, and confirmed system restored to normal heating operation with successful call for heat.
Nick K.
Nick K. Checked in
Responded to no heat call and performed diagnostic inspection of thermostat system. Found thermostat had become disconnected from wall mount base, interrupting power and communication to HVAC equipment. Properly reconnected thermostat to mounting base, verified all wire terminals were secure and making proper contact, and confirmed system restored to normal heating operation with successful call for heat.
HARTFORD, WI 53027
Completed comprehensive HVAC system evaluation for equipment replacement in residential basement mechanical room. Assessed existing Rheem Classic 90 Plus high-efficiency gas furnace and associated air handler system, documenting current equipment configuration, ductwork layout, and supporting infrastructure including PVC condensate/venting lines, copper gas supply line, electrical service connections, and flexible duct transitions. Photographed equipment conditions, manufacturer labels, energy ratings, and mechanical room layout to provide detailed documentation for replacement system specifications and installation planning.
Completed comprehensive HVAC system evaluation for equipment replacement in residential basement mechanical room. Assessed existing Rheem Classic 90 Plus high-efficiency gas furnace and associated air handler system, documenting current equipment configuration, ductwork layout, and supporting infrastructure including PVC condensate/venting lines, copper gas supply line, electrical service connections, and flexible duct transitions. Photographed equipment conditions, manufacturer labels, energy ratings, and mechanical room layout to provide detailed documentation for replacement system specifications and installation planning.
Jason G.
Jason G. Checked in
Completed comprehensive HVAC system evaluation for equipment replacement in residential basement mechanical room. Assessed existing Rheem Classic 90 Plus high-efficiency gas furnace and associated air handler system, documenting current equipment configuration, ductwork layout, and supporting infrastructure including PVC condensate/venting lines, copper gas supply line, electrical service connections, and flexible duct transitions. Photographed equipment conditions, manufacturer labels, energy ratings, and mechanical room layout to provide detailed documentation for replacement system specifications and installation planning.
Hartford, WI 53027
Completed comprehensive HVAC system assessment in unfinished basement utility space to provide equipment replacement estimate. Documented existing mechanical infrastructure including ductwork, copper refrigerant lines, PEX plumbing, electrical conduits, and ventilation systems routed through exposed ceiling joists. Evaluated current system configuration and accessibility for future equipment replacement installation.
Completed comprehensive HVAC system assessment in unfinished basement utility space to provide equipment replacement estimate. Documented existing mechanical infrastructure including ductwork, copper refrigerant lines, PEX plumbing, electrical conduits, and ventilation systems routed through exposed ceiling joists. Evaluated current system configuration and accessibility for future equipment replacement installation.
Steven S.
Steven S. Checked in
Completed comprehensive HVAC system assessment in unfinished basement utility space to provide equipment replacement estimate. Documented existing mechanical infrastructure including ductwork, copper refrigerant lines, PEX plumbing, electrical conduits, and ventilation systems routed through exposed ceiling joists. Evaluated current system configuration and accessibility for future equipment replacement installation.
Hartford, WI 53027
Completed comprehensive HVAC estimate for complete water heating system replacement in residential mechanical room. Evaluated existing equipment including two A.O. Smith water heaters, expansion tank, and Hanson water treatment system, all interconnected with copper piping and brass fixtures. Assessed current installation configuration, equipment condition, and provided recommendations for modernized replacement units with improved energy efficiency ratings and updated safety features to meet current code requirements.
Completed comprehensive HVAC estimate for complete water heating system replacement in residential mechanical room. Evaluated existing equipment including two A.O. Smith water heaters, expansion tank, and Hanson water treatment system, all interconnected with copper piping and brass fixtures. Assessed current installation configuration, equipment condition, and provided recommendations for modernized replacement units with improved energy efficiency ratings and updated safety features to meet current code requirements.
Jason G.
Jason G. Checked in
Completed comprehensive HVAC estimate for complete water heating system replacement in residential mechanical room. Evaluated existing equipment including two A.O. Smith water heaters, expansion tank, and Hanson water treatment system, all interconnected with copper piping and brass fixtures. Assessed current installation configuration, equipment condition, and provided recommendations for modernized replacement units with improved energy efficiency ratings and updated safety features to meet current code requirements.
Hartford, WI 53027
Performed preventive maintenance and inspection on Lennox Elite Series high-efficiency gas furnace. Accessed and inspected blower motor assembly, verified proper operation of all electrical connections and components, and confirmed condensate drainage system functionality. All system components found to be operating within normal parameters, with furnace cycling properly and venting correctly through PVC exhaust pipes.
Performed preventive maintenance and inspection on Lennox Elite Series high-efficiency gas furnace. Accessed and inspected blower motor assembly, verified proper operation of all electrical connections and components, and confirmed condensate drainage system functionality. All system components found to be operating within normal parameters, with furnace cycling properly and venting correctly through PVC exhaust pipes.
Nick K.
Nick K. Checked in
Performed preventive maintenance and inspection on Lennox Elite Series high-efficiency gas furnace. Accessed and inspected blower motor assembly, verified proper operation of all electrical connections and components, and confirmed condensate drainage system functionality. All system components found to be operating within normal parameters, with furnace cycling properly and venting correctly through PVC exhaust pipes.
HARTFORD, WI 53027
Completed installation of kitchen sink plumbing system, including connection of new stainless steel double-basin sink with faucet assembly. Ran supply lines and drain piping through wall cavity, installed junction box and necessary electrical connections to support disposal or related fixtures, and secured all plumbing connections to ensure proper water flow and drainage functionality.
Completed installation of kitchen sink plumbing system, including connection of new stainless steel double-basin sink with faucet assembly. Ran supply lines and drain piping through wall cavity, installed junction box and necessary electrical connections to support disposal or related fixtures, and secured all plumbing connections to ensure proper water flow and drainage functionality.
Kyle L.
Kyle L. Checked in
Completed installation of kitchen sink plumbing system, including connection of new stainless steel double-basin sink with faucet assembly. Ran supply lines and drain piping through wall cavity, installed junction box and necessary electrical connections to support disposal or related fixtures, and secured all plumbing connections to ensure proper water flow and drainage functionality.
Hartford, WI 53027
Responded to emergency call for broken pipe in basement mechanical space. Upon arrival, located compromised copper water line running along ceiling joists near HVAC ductwork system. Isolated water supply to affected section and drained remaining water from damaged pipe segment. Removed corroded section of pipe showing significant oxidation and age-related deterioration. Cut and removed approximately 18 inches of compromised copper piping, deburred pipe ends, and cleaned connection points. Installed new copper pipe section using proper sweat-soldering techniques with lead-free solder to ensure code-compliant connections. Tested all joints for leaks under full pressure, confirmed system integrity, and restored water supply to building. Inspected surrounding piping infrastructure for additional signs of corrosion or potential failure points given the age of the existing plumbing system.
Responded to emergency call for broken pipe in basement mechanical space. Upon arrival, located compromised copper water line running along ceiling joists near HVAC ductwork system. Isolated water supply to affected section and drained remaining water from damaged pipe segment. Removed corroded section of pipe showing significant oxidation and age-related deterioration. Cut and removed approximately 18 inches of compromised copper piping, deburred pipe ends, and cleaned connection points. Installed new copper pipe section using proper sweat-soldering techniques with lead-free solder to ensure code-compliant connections. Tested all joints for leaks under full pressure, confirmed system integrity, and restored water supply to building. Inspected surrounding piping infrastructure for additional signs of corrosion or potential failure points given the age of the existing plumbing system.
Kyle L.
Kyle L. Checked in
Responded to emergency call for broken pipe in basement mechanical space. Upon arrival, located compromised copper water line running along ceiling joists near HVAC ductwork system. Isolated water supply to affected section and drained remaining water from damaged pipe segment. Removed corroded section of pipe showing significant oxidation and age-related deterioration. Cut and removed approximately 18 inches of compromised copper piping, deburred pipe ends, and cleaned connection points. Installed new copper pipe section using proper sweat-soldering techniques with lead-free solder to ensure code-compliant connections. Tested all joints for leaks under full pressure, confirmed system integrity, and restored water supply to building. Inspected surrounding piping infrastructure for additional signs of corrosion or potential failure points given the age of the existing plumbing system.
Hartford, WI 53027
Completed comprehensive HVAC system tune-up in attic mechanical space, inspecting all ductwork connections, PVC condensate drain lines, and copper refrigerant lines for proper operation. Verified all sheet metal plenums, flexible ductwork, and pipe joints showed no signs of leakage or deterioration, with all components functioning within normal parameters.
Completed comprehensive HVAC system tune-up in attic mechanical space, inspecting all ductwork connections, PVC condensate drain lines, and copper refrigerant lines for proper operation. Verified all sheet metal plenums, flexible ductwork, and pipe joints showed no signs of leakage or deterioration, with all components functioning within normal parameters.
Donovan S.
Donovan S. Checked in
Completed comprehensive HVAC system tune-up in attic mechanical space, inspecting all ductwork connections, PVC condensate drain lines, and copper refrigerant lines for proper operation. Verified all sheet metal plenums, flexible ductwork, and pipe joints showed no signs of leakage or deterioration, with all components functioning within normal parameters.
Hartford, WI 53027
Hartford, WI - Performed inspection and maintenance on tanked water heater system and associated mechanical components. Addressed deteriorated flooring conditions around equipment area and verified proper operation of water heater connections, including supply lines and drainage components. Documented equipment condition with photographic records showing existing wear patterns on mechanical housing and concrete substrate degradation for future reference.
Kyle L.
Kyle L. Checked in
Performed inspection and maintenance on tanked water heater system and associated mechanical components. Addressed deteriorated flooring conditions around equipment area and verified proper operation of water heater connections, including supply lines and drainage components. Documented equipment condition with photographic records showing existing wear patterns on mechanical housing and concrete substrate degradation for future reference.
Hartford, WI 53027
Completed comprehensive HVAC tune-up service including inspection of condensate drainage system and verification of equipment levelness. Examined PVC drain line configuration, condensate pan, and associated piping within the unit cabinet, noting proper drainage flow and checking for any signs of blockage or mineral buildup. Confirmed unit is properly leveled to ensure adequate condensate removal and optimal system operation.
Completed comprehensive HVAC tune-up service including inspection of condensate drainage system and verification of equipment levelness. Examined PVC drain line configuration, condensate pan, and associated piping within the unit cabinet, noting proper drainage flow and checking for any signs of blockage or mineral buildup. Confirmed unit is properly leveled to ensure adequate condensate removal and optimal system operation.
Donovan S.
Donovan S. Checked in
Completed comprehensive HVAC tune-up service including inspection of condensate drainage system and verification of equipment levelness. Examined PVC drain line configuration, condensate pan, and associated piping within the unit cabinet, noting proper drainage flow and checking for any signs of blockage or mineral buildup. Confirmed unit is properly leveled to ensure adequate condensate removal and optimal system operation.
Hartford, WI 53027
Completed full HVAC system replacement including removal of existing Armstrong Air furnace from interior utility closet and outdoor condensing unit. Installed new high-efficiency furnace in existing closet location with proper venting through PVC exhaust and intake piping, and replaced outdoor condenser unit on concrete pad with new equipment including electrical disconnect box and refrigerant line connections to brick-mounted service panel.
Completed full HVAC system replacement including removal of existing Armstrong Air furnace from interior utility closet and outdoor condensing unit. Installed new high-efficiency furnace in existing closet location with proper venting through PVC exhaust and intake piping, and replaced outdoor condenser unit on concrete pad with new equipment including electrical disconnect box and refrigerant line connections to brick-mounted service panel.
Jason G.
Jason G. Checked in
Completed full HVAC system replacement including removal of existing Armstrong Air furnace from interior utility closet and outdoor condensing unit. Installed new high-efficiency furnace in existing closet location with proper venting through PVC exhaust and intake piping, and replaced outdoor condenser unit on concrete pad with new equipment including electrical disconnect box and refrigerant line connections to brick-mounted service panel.
Hartford, WI 53027
Completed preventative maintenance tune-up on Daikin furnace system in residential basement installation. Performed comprehensive inspection of unit, verified proper operation of all safety controls, checked and cleaned burner assembly, inspected heat exchanger for cracks or deterioration, tested ignition system functionality, and confirmed adequate combustion air supply and proper venting through white PVC piping. Verified all electrical connections were secure, measured temperature rise across heat exchanger within manufacturer specifications, and ensured ductwork connections were properly sealed to maximize system efficiency.
Completed preventative maintenance tune-up on Daikin furnace system in residential basement installation. Performed comprehensive inspection of unit, verified proper operation of all safety controls, checked and cleaned burner assembly, inspected heat exchanger for cracks or deterioration, tested ignition system functionality, and confirmed adequate combustion air supply and proper venting through white PVC piping. Verified all electrical connections were secure, measured temperature rise across heat exchanger within manufacturer specifications, and ensured ductwork connections were properly sealed to maximize system efficiency.
Donovan S.
Donovan S. Checked in
Completed preventative maintenance tune-up on Daikin furnace system in residential basement installation. Performed comprehensive inspection of unit, verified proper operation of all safety controls, checked and cleaned burner assembly, inspected heat exchanger for cracks or deterioration, tested ignition system functionality, and confirmed adequate combustion air supply and proper venting through white PVC piping. Verified all electrical connections were secure, measured temperature rise across heat exchanger within manufacturer specifications, and ensured ductwork connections were properly sealed to maximize system efficiency.
Hartford, WI 53027
Responded to no heat call on residential HVAC system over 10 years old. Upon inspection, diagnosed failed ignition control module preventing burner operation. Replaced faulty ignitor assembly and verified proper flame sensor operation. Tested system through multiple heating cycles, confirmed proper airflow through ductwork and plenum assembly, and verified all safety controls functioning within manufacturer specifications. Unit now operating efficiently with normal temperature rise across heat exchanger.
Responded to no heat call on residential HVAC system over 10 years old. Upon inspection, diagnosed failed ignition control module preventing burner operation. Replaced faulty ignitor assembly and verified proper flame sensor operation. Tested system through multiple heating cycles, confirmed proper airflow through ductwork and plenum assembly, and verified all safety controls functioning within manufacturer specifications. Unit now operating efficiently with normal temperature rise across heat exchanger.
Jacob A.
Jacob A. Checked in
Responded to no heat call on residential HVAC system over 10 years old. Upon inspection, diagnosed failed ignition control module preventing burner operation. Replaced faulty ignitor assembly and verified proper flame sensor operation. Tested system through multiple heating cycles, confirmed proper airflow through ductwork and plenum assembly, and verified all safety controls functioning within manufacturer specifications. Unit now operating efficiently with normal temperature rise across heat exchanger.
HARTFORD, WI 53027

What To Expect

Discover the Thielmann Heating, Cooling & Plumbing Difference

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Review Image
Our Reviews

See What Your Neighbors Are Saying

I liked my experience with them. The guys I spoke with prior to doing the work, the estimation phase , and the ones I spoke with after the work was completed had enough knowledge and suggestion to answer all my questions. I’m pleased with the job…

De'Angelo T.

De'Angelo T.

Excellent team from start to finish. They were all very respectful of our property, as they promptly and professionally went about their task of installing a new air conditioner system. The system works very well, so far. It is also much quieter than the previous 40+…

Jerry W.

Jerry W.

Thielmann did a tremendous job replacing our Carrier furnace. They worked with us to make sure we were able to get the right product and even worked with Carrier on the issues we were seeing on our old furnace as it was failing sooner than it…

J. K.

J. K.

I've been using Thielmann Group for all my heating and air conditioning since I built my house 23 years ago. They have been great in emergency service and regular maintenance service. On time and very friendly staff. Would, and have, recommend them to anyone!

Paul K.

Paul K.

I have used Thielmann for both installation of a new furnace + A/C recently, but also an install of a ductless mini-split unit six years ago. I fully trust their brands and recommendations. I can't say enough of about this company. Every single person from administrative…

Christin C.

Christin C.