Top 24/7 HVAC Service In Hartford, WI | Upfront Pricing

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

Conducted diagnostic assessment on newer model furnace with no heat condition. Upon inspection of the ECM drive board, identified faulty control board as the primary issue. Replaced control board, reconnected all wiring harnesses according to manufacturer specifications, and verified system operation. Unit now functioning properly with normal heating cycle restored.
Conducted diagnostic assessment on newer model furnace with no heat condition. Upon inspection of the ECM drive board, identified faulty control board as the primary issue. Replaced control board, reconnected all wiring harnesses according to manufacturer specifications, and verified system operation. Unit now functioning properly with normal heating cycle restored.
Nicholas H.
Nicholas H. Checked in
Conducted diagnostic assessment on newer model furnace with no heat condition. Upon inspection of the ECM drive board, identified faulty control board as the primary issue. Replaced control board, reconnected all wiring harnesses according to manufacturer specifications, and verified system operation. Unit now functioning properly with normal heating cycle restored.
Hartford, WI 53027
Conducted assessment for HVAC system replacement in basement utility area. Inspection revealed existing water heater with multiple copper supply lines and galvanized vent pipe against cinder block wall. Evaluated current HVAC setup with insulated ductwork, furnace unit, and PVC condensate drainage system. Photos documented mechanical configurations to support replacement estimate proposal.
Conducted assessment for HVAC system replacement in basement utility area. Inspection revealed existing water heater with multiple copper supply lines and galvanized vent pipe against cinder block wall. Evaluated current HVAC setup with insulated ductwork, furnace unit, and PVC condensate drainage system. Photos documented mechanical configurations to support replacement estimate proposal.
Jason G.
Jason G. Checked in
Conducted assessment for HVAC system replacement in basement utility area. Inspection revealed existing water heater with multiple copper supply lines and galvanized vent pipe against cinder block wall. Evaluated current HVAC setup with insulated ductwork, furnace unit, and PVC condensate drainage system. Photos documented mechanical configurations to support replacement estimate proposal.
Hartford, WI 53027
Completed HVAC system upgrade featuring installation of a new Aprilaire whole-home humidifier unit connected to existing ductwork. System includes copper piping with brass fittings and integrated digital thermostat control panel for improved climate regulation. Noted water damage around plumbing area requiring additional attention; recommended repair of exposed wall insulation adjacent to water meter.
Completed HVAC system upgrade featuring installation of a new Aprilaire whole-home humidifier unit connected to existing ductwork. System includes copper piping with brass fittings and integrated digital thermostat control panel for improved climate regulation. Noted water damage around plumbing area requiring additional attention; recommended repair of exposed wall insulation adjacent to water meter.
Bryan P.
Bryan P. Checked in
Completed HVAC system upgrade featuring installation of a new Aprilaire whole-home humidifier unit connected to existing ductwork. System includes copper piping with brass fittings and integrated digital thermostat control panel for improved climate regulation. Noted water damage around plumbing area requiring additional attention; recommended repair of exposed wall insulation adjacent to water meter.
HARTFORD, WI 53027
Completed installation of a new gray furnace unit in basement utility area, connecting required white PVC ventilation pipes and properly mounting the system to existing framing. Final static pressure testing with MA-line Micromanometer (MA-TDSSA) confirmed optimal system performance at 16.5 WC.
Completed installation of a new gray furnace unit in basement utility area, connecting required white PVC ventilation pipes and properly mounting the system to existing framing. Final static pressure testing with MA-line Micromanometer (MA-TDSSA) confirmed optimal system performance at 16.5 WC.
Nate G.
Nate G. Checked in
Completed installation of a new gray furnace unit in basement utility area, connecting required white PVC ventilation pipes and properly mounting the system to existing framing. Final static pressure testing with MA-line Micromanometer (MA-TDSSA) confirmed optimal system performance at 16.5 WC.
Hartford, WI 53027
Completed service on a residential boiler system in basement utility room. Inspected internal components including wiring and mechanical parts, and checked operation of associated expansion tank and gas cylinder. System appears in good working condition with no visible damage or operational issues detected.
Completed service on a residential boiler system in basement utility room. Inspected internal components including wiring and mechanical parts, and checked operation of associated expansion tank and gas cylinder. System appears in good working condition with no visible damage or operational issues detected.
Nicholas H.
Nicholas H. Checked in
Completed service on a residential boiler system in basement utility room. Inspected internal components including wiring and mechanical parts, and checked operation of associated expansion tank and gas cylinder. System appears in good working condition with no visible damage or operational issues detected.
Hartford, WI 53027
Hartford, WI - Conducted diagnostic service on a relatively new furnace system (< 10 years old) for no heat complaint. Upon inspection, accessed main compartment to examine internal components including control board, blower motor assembly, and gas valve. Visual inspection revealed all wiring connections intact with no obvious damage to circuit board or critical components. Restored proper heating function by resolving control sequence issue and verified normal operation before completing service.
Nick K.
Nick K. Checked in
Conducted diagnostic service on a relatively new furnace system (< 10 years old) for no heat complaint. Upon inspection, accessed main compartment to examine internal components including control board, blower motor assembly, and gas valve. Visual inspection revealed all wiring connections intact with no obvious damage to circuit board or critical components. Restored proper heating function by resolving control sequence issue and verified normal operation before completing service.
Hartford, WI 53027
Hartford, WI - Conducted inspection of existing residential HVAC system located in utility closet. Assessed tan/beige furnace unit with connected ductwork, associated plumbing including PVC drainage, and copper line connections. Evaluation performed to determine replacement options for aging system components.
Bryan P.
Bryan P. Checked in
Conducted inspection of existing residential HVAC system located in utility closet. Assessed tan/beige furnace unit with connected ductwork, associated plumbing including PVC drainage, and copper line connections. Evaluation performed to determine replacement options for aging system components.
Hartford, WI 53027
HARTFORD, WI - Responded to no heat complaint. Inspected Braeburn programmable thermostat set to 64°F with proper battery power. Verified thermostat functionality and confirmed system was operational. Explained proper operation of heat settings to customer.
Nick K.
Nick K. Checked in
Responded to no heat complaint. Inspected Braeburn programmable thermostat set to 64°F with proper battery power. Verified thermostat functionality and confirmed system was operational. Explained proper operation of heat settings to customer.
HARTFORD, WI 53027
Performed comprehensive maintenance tune-up on residential HVAC system. Inspected interior furnace components including motor assembly, electrical connections, and valve functionality. Examined ceiling/basement ventilation systems, PVC piping infrastructure, and verified proper ductwork installation with attention to electrical connections and system safety parameters.
Performed comprehensive maintenance tune-up on residential HVAC system. Inspected interior furnace components including motor assembly, electrical connections, and valve functionality. Examined ceiling/basement ventilation systems, PVC piping infrastructure, and verified proper ductwork installation with attention to electrical connections and system safety parameters.
Nick K.
Nick K. Checked in
Performed comprehensive maintenance tune-up on residential HVAC system. Inspected interior furnace components including motor assembly, electrical connections, and valve functionality. Examined ceiling/basement ventilation systems, PVC piping infrastructure, and verified proper ductwork installation with attention to electrical connections and system safety parameters.
Hartford, WI 53027
Responded to no-heat call for aging RPJ-II furnace. Visual inspection revealed dust accumulation and wear on multiple components. Diagnosed failed ignition sequence due to dirty burners and faulty gas valve assembly. Cleaned burner assembly, replaced gas valve, and confirmed proper flame characteristics after repair. Unit now operating normally with successful ignition and adequate heat output.
Responded to no-heat call for aging RPJ-II furnace. Visual inspection revealed dust accumulation and wear on multiple components. Diagnosed failed ignition sequence due to dirty burners and faulty gas valve assembly. Cleaned burner assembly, replaced gas valve, and confirmed proper flame characteristics after repair. Unit now operating normally with successful ignition and adequate heat output.
Nick K.
Nick K. Checked in
Responded to no-heat call for aging RPJ-II furnace. Visual inspection revealed dust accumulation and wear on multiple components. Diagnosed failed ignition sequence due to dirty burners and faulty gas valve assembly. Cleaned burner assembly, replaced gas valve, and confirmed proper flame characteristics after repair. Unit now operating normally with successful ignition and adequate heat output.
Hartford, WI 53027
Conducted routine prepaid HVAC maintenance service on customer's furnace system, performing comprehensive inspection of internal components including control board, wiring, and ventilation pipes. Checked all connections and verified proper operation of the unit while examining the ductwork in the unfinished basement for proper installation and airflow.
Conducted routine prepaid HVAC maintenance service on customer's furnace system, performing comprehensive inspection of internal components including control board, wiring, and ventilation pipes. Checked all connections and verified proper operation of the unit while examining the ductwork in the unfinished basement for proper installation and airflow.
Nicholas H.
Nicholas H. Checked in
Conducted routine prepaid HVAC maintenance service on customer's furnace system, performing comprehensive inspection of internal components including control board, wiring, and ventilation pipes. Checked all connections and verified proper operation of the unit while examining the ductwork in the unfinished basement for proper installation and airflow.
Hartford, WI 53027
Performed comprehensive HVAC tune-up service including combustion analysis with Bacharach analyzer, which confirmed optimal system efficiency at 96.7% with CO levels at 31 ppm and CO2 at 7.6%. Inspected ventilation components and PVC exhaust piping system, verifying proper installation and confirming no signs of deterioration or compromise to the vent assembly.
Performed comprehensive HVAC tune-up service including combustion analysis with Bacharach analyzer, which confirmed optimal system efficiency at 96.7% with CO levels at 31 ppm and CO2 at 7.6%. Inspected ventilation components and PVC exhaust piping system, verifying proper installation and confirming no signs of deterioration or compromise to the vent assembly.
Nicholas H.
Nicholas H. Checked in
Performed comprehensive HVAC tune-up service including combustion analysis with Bacharach analyzer, which confirmed optimal system efficiency at 96.7% with CO levels at 31 ppm and CO2 at 7.6%. Inspected ventilation components and PVC exhaust piping system, verifying proper installation and confirming no signs of deterioration or compromise to the vent assembly.
Hartford, WI 53027
Performed scheduled tune-up on aging HVAC system located in confined utility area. Observed significant rust and water damage on unit components including visible corrosion on piping and metal ducting. Documented deterioration with photos for record, particularly noting stress lines and potential cracking that may require future attention.
Performed scheduled tune-up on aging HVAC system located in confined utility area. Observed significant rust and water damage on unit components including visible corrosion on piping and metal ducting. Documented deterioration with photos for record, particularly noting stress lines and potential cracking that may require future attention.
Nick K.
Nick K. Checked in
Performed scheduled tune-up on aging HVAC system located in confined utility area. Observed significant rust and water damage on unit components including visible corrosion on piping and metal ducting. Documented deterioration with photos for record, particularly noting stress lines and potential cracking that may require future attention.
Hartford, WI 53027
Performed diagnostic inspection on residential furnace system with access panels removed. Evaluated internal wiring connections, circuit boards, gas valve assembly and control components. Inspected integrated Space-Gard air cleaner unit and confirmed proper installation of condensate drain system with PVC piping.
Performed diagnostic inspection on residential furnace system with access panels removed. Evaluated internal wiring connections, circuit boards, gas valve assembly and control components. Inspected integrated Space-Gard air cleaner unit and confirmed proper installation of condensate drain system with PVC piping.
Nicholas H.
Nicholas H. Checked in
Performed diagnostic inspection on residential furnace system with access panels removed. Evaluated internal wiring connections, circuit boards, gas valve assembly and control components. Inspected integrated Space-Gard air cleaner unit and confirmed proper installation of condensate drain system with PVC piping.
HARTFORD, WI 53027
Hartford, WI - Performed routine tune-up of hydronic heating system, inspecting the expansion tank, copper piping network, and multiple control valves for proper operation. Verified system pressure readings were within acceptable parameters and confirmed all connections were secure with no signs of leakage. System is functioning as designed with no issues identified.
Nicholas H.
Nicholas H. Checked in
Performed routine tune-up of hydronic heating system, inspecting the expansion tank, copper piping network, and multiple control valves for proper operation. Verified system pressure readings were within acceptable parameters and confirmed all connections were secure with no signs of leakage. System is functioning as designed with no issues identified.
Hartford, WI 53027
Hartford, WI - Performed comprehensive furnace tune-up on residential heating system located in basement. Inspected internal components including wiring, valves, and mechanical assemblies for proper operation. Examined connected PVC exhaust/intake ventilation system and associated ductwork to ensure optimal airflow and system efficiency.
Jacob A.
Jacob A. Checked in
Performed comprehensive furnace tune-up on residential heating system located in basement. Inspected internal components including wiring, valves, and mechanical assemblies for proper operation. Examined connected PVC exhaust/intake ventilation system and associated ductwork to ensure optimal airflow and system efficiency.
Hartford, WI 53027
Responded to no heat complaint for Payne furnace system less than 10 years old. Diagnostic testing revealed thermostat was set to 51°F, significantly below room temperature, preventing system activation. Adjusted thermostat to proper heating mode and temperature setting, verified complete system operation through test cycle. System now functioning correctly with no mechanical issues identified.
Responded to no heat complaint for Payne furnace system less than 10 years old. Diagnostic testing revealed thermostat was set to 51°F, significantly below room temperature, preventing system activation. Adjusted thermostat to proper heating mode and temperature setting, verified complete system operation through test cycle. System now functioning correctly with no mechanical issues identified.
Nicholas H.
Nicholas H. Checked in
Responded to no heat complaint for Payne furnace system less than 10 years old. Diagnostic testing revealed thermostat was set to 51°F, significantly below room temperature, preventing system activation. Adjusted thermostat to proper heating mode and temperature setting, verified complete system operation through test cycle. System now functioning correctly with no mechanical issues identified.
Hartford, WI 53027
Completed dual-system furnace inspection in mechanical room. Visually inspected Ruud furnace units, associated ductwork, and connections. Both systems appeared to be in normal working condition with no visible damage or abnormalities noted. Confirmed proper installation of ventilation system and verified safety warning labels were intact and visible.
Completed dual-system furnace inspection in mechanical room. Visually inspected Ruud furnace units, associated ductwork, and connections. Both systems appeared to be in normal working condition with no visible damage or abnormalities noted. Confirmed proper installation of ventilation system and verified safety warning labels were intact and visible.
Nicholas H.
Nicholas H. Checked in
Completed dual-system furnace inspection in mechanical room. Visually inspected Ruud furnace units, associated ductwork, and connections. Both systems appeared to be in normal working condition with no visible damage or abnormalities noted. Confirmed proper installation of ventilation system and verified safety warning labels were intact and visible.
Hartford, WI 53027
Completed comprehensive inspection of existing HVAC system in basement utility area, documenting deteriorating foundation walls with visible moisture damage. Captured photographic evidence of current furnace installation adjacent to water heater, noting space constraints and necessary considerations for equipment replacement. Prepared estimate for full system replacement due to age and condition of current unit.
Completed comprehensive inspection of existing HVAC system in basement utility area, documenting deteriorating foundation walls with visible moisture damage. Captured photographic evidence of current furnace installation adjacent to water heater, noting space constraints and necessary considerations for equipment replacement. Prepared estimate for full system replacement due to age and condition of current unit.
Bryan P.
Bryan P. Checked in
Completed comprehensive inspection of existing HVAC system in basement utility area, documenting deteriorating foundation walls with visible moisture damage. Captured photographic evidence of current furnace installation adjacent to water heater, noting space constraints and necessary considerations for equipment replacement. Prepared estimate for full system replacement due to age and condition of current unit.
Hartford, WI 53027
Completed a routine HVAC tune-up, including verification of vertical alignment of equipment using spirit level and inspection of the condensate drain line system. PVC drain piping was confirmed to be properly installed with appropriate slope and secure mounting along structural surfaces.
Completed a routine HVAC tune-up, including verification of vertical alignment of equipment using spirit level and inspection of the condensate drain line system. PVC drain piping was confirmed to be properly installed with appropriate slope and secure mounting along structural surfaces.
Nick K.
Nick K. Checked in
Completed a routine HVAC tune-up, including verification of vertical alignment of equipment using spirit level and inspection of the condensate drain line system. PVC drain piping was confirmed to be properly installed with appropriate slope and secure mounting along structural surfaces.
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.

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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.