Top 24/7 HVAC And Plumbing 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) 315-3067 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) 315-3067 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) 315-3067 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) 315-3067 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) 315-3067 to schedule HVAC or IAQ services in Hartford today!

Read Reviews by Our Customers

Recent Jobs and Reviews in Hartford, WI

Hartford, WI at a glance

Thielmann Heating, Cooling & Plumbing has completed 20 jobs in Hartford, WI between September 2026 and October 2026.

The most recent job was on October 6, 2026.

Thielmann Heating, Cooling & Plumbing has completed 553 jobs in Hartford, WI in the last 12 months.

Job Locations and Reviews

# HVAC No Heat Service Call

Responded to no heat complaint on residential HVAC system. Upon arrival, performed diagnostic inspection of furnace unit. Removed access panel to examine internal components and electrical systems. Visual inspection revealed significant corrosion and rust deterioration on metal framework and base platform, indicating prolonged moisture exposure. Multiple wire harnesses and circuit boards were examined for proper connections and functionality. Documented equipment condition through photographs showing corroded metal surfaces contrasting with operational electrical components. Blower motor assembly and control boards were inspected. System evaluated for safety concerns related to deteriorated metal components and potential impact on electrical systems. Equipment shows signs of extended service life despite being under ten years old, with environmental factors contributing to accelerated deterioration of metal components.
# HVAC No Heat Service Call

Responded to no heat complaint on residential HVAC system. Upon arrival, performed diagnostic inspection of furnace unit. Removed access panel to examine internal components and electrical systems. Visual inspection revealed significant corrosion and rust deterioration on metal framework and base platform, indicating prolonged moisture exposure. Multiple wire harnesses and circuit boards were examined for proper connections and functionality. Documented equipment condition through photographs showing corroded metal surfaces contrasting with operational electrical components. Blower motor assembly and control boards were inspected. System evaluated for safety concerns related to deteriorated metal components and potential impact on electrical systems. Equipment shows signs of extended service life despite being under ten years old, with environmental factors contributing to accelerated deterioration of metal components.
Nicholas H.
Nicholas H. Checked in
# HVAC No Heat Service Call Responded to no heat complaint on residential HVAC system. Upon arrival, performed diagnostic inspection of furnace unit. Removed access panel to examine internal components and electrical systems. Visual inspection revealed significant corrosion and rust deterioration on metal framework and base platform, indicating prolonged moisture exposure. Multiple wire harnesses and circuit boards were examined for proper connections and functionality. Documented equipment condition through photographs showing corroded metal surfaces contrasting with operational electrical components. Blower motor assembly and control boards were inspected. System evaluated for safety concerns related to deteriorated metal components and potential impact on electrical systems. Equipment shows signs of extended service life despite being under ten years old, with environmental factors contributing to accelerated deterioration of metal components.
Hartford, WI 53027
HARTFORD, WI - Completed scheduled prepaid heating maintenance visit on residential furnace system. Performed comprehensive inspection of air handler unit, including blower motor assembly, internal mechanical components, and ventilation system. Verified proper operation of condensate drain lines and PVC vent piping connections. Inspected refrigerant lines and insulation integrity. All systems found operating within normal parameters and unit left in proper working condition.
Jacob A.
Jacob A. Checked in
Completed scheduled prepaid heating maintenance visit on residential furnace system. Performed comprehensive inspection of air handler unit, including blower motor assembly, internal mechanical components, and ventilation system. Verified proper operation of condensate drain lines and PVC vent piping connections. Inspected refrigerant lines and insulation integrity. All systems found operating within normal parameters and unit left in proper working condition.
HARTFORD, WI 53027
Hartford, WI - Installed a 50-gallon Bradford White electric water heater (Model BBUS4A737IRE41) at the service location. Unit was picked up from Ferguson supply house, delivered to site, and successfully installed per manufacturer specifications with warranty documentation completed.
Paul J.
Paul J. Checked in
Installed a 50-gallon Bradford White electric water heater (Model BBUS4A737IRE41) at the service location. Unit was picked up from Ferguson supply house, delivered to site, and successfully installed per manufacturer specifications with warranty documentation completed.
Hartford, WI 53027
# HVAC Service Report

Responded to no heat call on residential furnace system. Upon arrival, removed access panels and performed comprehensive diagnostic evaluation of unit. Conducted electrical testing using multimeter to verify power supply and circuit integrity throughout the system. Inspected internal wiring, control board, and all electrical connections for proper operation and safety. Identified issue preventing heat operation and completed necessary repairs to restore full heating functionality. Verified proper operation of all safety controls and confirmed unit cycling correctly. Reinstalled access panels and left system in proper working order.
# HVAC Service Report

Responded to no heat call on residential furnace system. Upon arrival, removed access panels and performed comprehensive diagnostic evaluation of unit. Conducted electrical testing using multimeter to verify power supply and circuit integrity throughout the system. Inspected internal wiring, control board, and all electrical connections for proper operation and safety. Identified issue preventing heat operation and completed necessary repairs to restore full heating functionality. Verified proper operation of all safety controls and confirmed unit cycling correctly. Reinstalled access panels and left system in proper working order.
Nicholas H.
Nicholas H. Checked in
# HVAC Service Report Responded to no heat call on residential furnace system. Upon arrival, removed access panels and performed comprehensive diagnostic evaluation of unit. Conducted electrical testing using multimeter to verify power supply and circuit integrity throughout the system. Inspected internal wiring, control board, and all electrical connections for proper operation and safety. Identified issue preventing heat operation and completed necessary repairs to restore full heating functionality. Verified proper operation of all safety controls and confirmed unit cycling correctly. Reinstalled access panels and left system in proper working order.
Hartford, WI 53027
Performed diagnostic service on Whirlpool water softener experiencing complete drainage failure. Inspected unit installation, control panel functionality, and associated plumbing connections including copper supply and drain lines. Documented equipment condition and utility room configuration with water heater proximity for service records.
Performed diagnostic service on Whirlpool water softener experiencing complete drainage failure. Inspected unit installation, control panel functionality, and associated plumbing connections including copper supply and drain lines. Documented equipment condition and utility room configuration with water heater proximity for service records.
Dan E.
Dan E. Checked in
Performed diagnostic service on Whirlpool water softener experiencing complete drainage failure. Inspected unit installation, control panel functionality, and associated plumbing connections including copper supply and drain lines. Documented equipment condition and utility room configuration with water heater proximity for service records.
Hartford, WI 53027
Hartford, WI - Completed comprehensive furnace tune-up including full system diagnostics with multimeter testing of electrical components and circuit board functionality. Verified proper operation of all mechanical components, inspected air filter condition, and confirmed system is operating safely and efficiently within manufacturer specifications.
Nicholas H.
Nicholas H. Checked in
Completed comprehensive furnace tune-up including full system diagnostics with multimeter testing of electrical components and circuit board functionality. Verified proper operation of all mechanical components, inspected air filter condition, and confirmed system is operating safely and efficiently within manufacturer specifications.
Hartford, WI 53027
Hartford, WI - Completed comprehensive furnace tune-up on residential HVAC system located in basement mechanical room. Performed standard maintenance inspection including examination of blower motor assembly, refrigerant lines, electrical connections, and ventilation components; verified proper operation of all system functions and ensured unit specifications met manufacturer requirements.
Nicholas H.
Nicholas H. Checked in
Completed comprehensive furnace tune-up on residential HVAC system located in basement mechanical room. Performed standard maintenance inspection including examination of blower motor assembly, refrigerant lines, electrical connections, and ventilation components; verified proper operation of all system functions and ensured unit specifications met manufacturer requirements.
Hartford, WI 53027
Provided estimate for replacement of leaking Rheem Professional model PROE502-RH9150 50-gallon electric water heater located in basement utility area. Prepared detailed materials list including new 50-gallon electric water heater, expansion tank with adapter, CPVC and copper press fittings, and necessary piping materials for complete installation.
Provided estimate for replacement of leaking Rheem Professional model PROE502-RH9150 50-gallon electric water heater located in basement utility area. Prepared detailed materials list including new 50-gallon electric water heater, expansion tank with adapter, CPVC and copper press fittings, and necessary piping materials for complete installation.
Nick B.
Nick B. Checked in
Provided estimate for replacement of leaking Rheem Professional model PROE502-RH9150 50-gallon electric water heater located in basement utility area. Prepared detailed materials list including new 50-gallon electric water heater, expansion tank with adapter, CPVC and copper press fittings, and necessary piping materials for complete installation.
Hartford, WI 53027
Responded to emergency service call for HVAC system evaluation. Conducted comprehensive assessment of existing furnace, humidifier, and air conditioning equipment in basement mechanical room. Provided detailed replacement estimate for heating and cooling system components based on equipment age, condition, and homeowner requirements.
Responded to emergency service call for HVAC system evaluation. Conducted comprehensive assessment of existing furnace, humidifier, and air conditioning equipment in basement mechanical room. Provided detailed replacement estimate for heating and cooling system components based on equipment age, condition, and homeowner requirements.
Bryan P.
Bryan P. Checked in
Responded to emergency service call for HVAC system evaluation. Conducted comprehensive assessment of existing furnace, humidifier, and air conditioning equipment in basement mechanical room. Provided detailed replacement estimate for heating and cooling system components based on equipment age, condition, and homeowner requirements.
Hartford, WI 53027
Conducted on-site plumbing estimate for bathroom tub/shower fixture replacement and kitchen faucet installation. Assessed existing chrome tub spout and shower control valve showing significant rust staining and mineral deposit buildup at wall penetrations, indicating potential water intrusion and need for fixture replacement. Reviewed new kitchen faucet assembly with pull-down spray hose, supply lines, and counterweight system for installation estimate.
Conducted on-site plumbing estimate for bathroom tub/shower fixture replacement and kitchen faucet installation. Assessed existing chrome tub spout and shower control valve showing significant rust staining and mineral deposit buildup at wall penetrations, indicating potential water intrusion and need for fixture replacement. Reviewed new kitchen faucet assembly with pull-down spray hose, supply lines, and counterweight system for installation estimate.
Nick B.
Nick B. Checked in
Conducted on-site plumbing estimate for bathroom tub/shower fixture replacement and kitchen faucet installation. Assessed existing chrome tub spout and shower control valve showing significant rust staining and mineral deposit buildup at wall penetrations, indicating potential water intrusion and need for fixture replacement. Reviewed new kitchen faucet assembly with pull-down spray hose, supply lines, and counterweight system for installation estimate.
Hartford, WI 53027
Responded to service call for non-functioning thermostat. Upon arrival, found Badger brand programmable thermostat displaying 59°F with system set to cooling mode in manual operation. Inspected unit, verified display functionality, and assessed thermostat programming and wiring connections to restore proper operation.
Responded to service call for non-functioning thermostat. Upon arrival, found Badger brand programmable thermostat displaying 59°F with system set to cooling mode in manual operation. Inspected unit, verified display functionality, and assessed thermostat programming and wiring connections to restore proper operation.
Nicholas H.
Nicholas H. Checked in
Responded to service call for non-functioning thermostat. Upon arrival, found Badger brand programmable thermostat displaying 59°F with system set to cooling mode in manual operation. Inspected unit, verified display functionality, and assessed thermostat programming and wiring connections to restore proper operation.
Hartford, WI 53027
Hartford, WI - Completed standard HVAC tune-up service on system. Technician brought replacement filter for unit and performed routine maintenance procedures. Customer was provided with promotional service offer information during visit.
Jacob A.
Jacob A. Checked in
Completed standard HVAC tune-up service on system. Technician brought replacement filter for unit and performed routine maintenance procedures. Customer was provided with promotional service offer information during visit.
Hartford, WI 53027
Conducted on-site assessment of existing fuel oil furnace system in basement of 1900 sq ft, 2-story single-family residence to provide replacement estimate. Current furnace unit approximately 18 years old, installed circa 2006, located in basement mechanical area. Inspected existing equipment configuration including air handler, ductwork connections, and associated HVAC components. Documented system layout with photographic evidence showing control module, wiring harness, galvanized ductwork with foil insulation, and mounted humidifier unit. Noted moisture condensation present on foam insulation surfaces within equipment compartment. Evaluated existing infrastructure including plumbing lines, gas connections, electrical service, and available space for replacement equipment installation. Provided comprehensive replacement estimate for new fuel oil furnace system suitable for heating requirements of 1900 sq ft residential structure.
Conducted on-site assessment of existing fuel oil furnace system in basement of 1900 sq ft, 2-story single-family residence to provide replacement estimate. Current furnace unit approximately 18 years old, installed circa 2006, located in basement mechanical area. Inspected existing equipment configuration including air handler, ductwork connections, and associated HVAC components. Documented system layout with photographic evidence showing control module, wiring harness, galvanized ductwork with foil insulation, and mounted humidifier unit. Noted moisture condensation present on foam insulation surfaces within equipment compartment. Evaluated existing infrastructure including plumbing lines, gas connections, electrical service, and available space for replacement equipment installation. Provided comprehensive replacement estimate for new fuel oil furnace system suitable for heating requirements of 1900 sq ft residential structure.
Rudy L.
Rudy L. Checked in
Conducted on-site assessment of existing fuel oil furnace system in basement of 1900 sq ft, 2-story single-family residence to provide replacement estimate. Current furnace unit approximately 18 years old, installed circa 2006, located in basement mechanical area. Inspected existing equipment configuration including air handler, ductwork connections, and associated HVAC components. Documented system layout with photographic evidence showing control module, wiring harness, galvanized ductwork with foil insulation, and mounted humidifier unit. Noted moisture condensation present on foam insulation surfaces within equipment compartment. Evaluated existing infrastructure including plumbing lines, gas connections, electrical service, and available space for replacement equipment installation. Provided comprehensive replacement estimate for new fuel oil furnace system suitable for heating requirements of 1900 sq ft residential structure.
Hartford, WI 53027
Responded to service call for kitchen faucet malfunction and dishwasher water supply issues. Upon arrival, performed diagnostic assessment of the kitchen plumbing system. Identified that the existing kitchen faucet was failing and causing inadequate water flow, which was subsequently affecting the dishwasher's ability to fill properly during its cycle. The dishwasher was shutting down mid-cycle due to insufficient water pressure and volume reaching the appliance. Recommended replacement of the kitchen faucet to restore proper water delivery to both the sink and connected dishwasher supply line. Documented existing conditions with photographs of the kitchen sink area and exterior hose bib for service records.
Responded to service call for kitchen faucet malfunction and dishwasher water supply issues. Upon arrival, performed diagnostic assessment of the kitchen plumbing system. Identified that the existing kitchen faucet was failing and causing inadequate water flow, which was subsequently affecting the dishwasher's ability to fill properly during its cycle. The dishwasher was shutting down mid-cycle due to insufficient water pressure and volume reaching the appliance. Recommended replacement of the kitchen faucet to restore proper water delivery to both the sink and connected dishwasher supply line. Documented existing conditions with photographs of the kitchen sink area and exterior hose bib for service records.
Dan E.
Dan E. Checked in
Responded to service call for kitchen faucet malfunction and dishwasher water supply issues. Upon arrival, performed diagnostic assessment of the kitchen plumbing system. Identified that the existing kitchen faucet was failing and causing inadequate water flow, which was subsequently affecting the dishwasher's ability to fill properly during its cycle. The dishwasher was shutting down mid-cycle due to insufficient water pressure and volume reaching the appliance. Recommended replacement of the kitchen faucet to restore proper water delivery to both the sink and connected dishwasher supply line. Documented existing conditions with photographs of the kitchen sink area and exterior hose bib for service records.
Hartford, WI 53027
Conducted estimate for replacement of 16-year-old Kenmore model 153.339762 water heater with 48-gallon capacity that is actively leaking. Customer requested upgrade to 60-gallon unit to accommodate increased hot water demand. Assessed existing installation including copper supply lines, exhaust venting, pressure relief valve configuration, and floor drainage. Documented current unit condition with photographs showing leak evidence and utility room layout. Provided recommendations for new water heater installation including proper venting requirements, code-compliant pressure relief valve discharge piping, and expansion tank evaluation.
Conducted estimate for replacement of 16-year-old Kenmore model 153.339762 water heater with 48-gallon capacity that is actively leaking. Customer requested upgrade to 60-gallon unit to accommodate increased hot water demand. Assessed existing installation including copper supply lines, exhaust venting, pressure relief valve configuration, and floor drainage. Documented current unit condition with photographs showing leak evidence and utility room layout. Provided recommendations for new water heater installation including proper venting requirements, code-compliant pressure relief valve discharge piping, and expansion tank evaluation.
Nick B.
Nick B. Checked in
Conducted estimate for replacement of 16-year-old Kenmore model 153.339762 water heater with 48-gallon capacity that is actively leaking. Customer requested upgrade to 60-gallon unit to accommodate increased hot water demand. Assessed existing installation including copper supply lines, exhaust venting, pressure relief valve configuration, and floor drainage. Documented current unit condition with photographs showing leak evidence and utility room layout. Provided recommendations for new water heater installation including proper venting requirements, code-compliant pressure relief valve discharge piping, and expansion tank evaluation.
Hartford, WI 53027
Replaced gooseneck single-handle kitchen faucet with chrome finish fixtures, including side sprayer attachment and soap dispenser. Installed new supply lines and P-trap assemblies for double-basin sink configuration. Customer also reported water softener and iron filter system cycling nightly between 9:59-11:00 PM, which appears to be operating on its programmed regeneration schedule.
Replaced gooseneck single-handle kitchen faucet with chrome finish fixtures, including side sprayer attachment and soap dispenser. Installed new supply lines and P-trap assemblies for double-basin sink configuration. Customer also reported water softener and iron filter system cycling nightly between 9:59-11:00 PM, which appears to be operating on its programmed regeneration schedule.
Dan E.
Dan E. Checked in
Replaced gooseneck single-handle kitchen faucet with chrome finish fixtures, including side sprayer attachment and soap dispenser. Installed new supply lines and P-trap assemblies for double-basin sink configuration. Customer also reported water softener and iron filter system cycling nightly between 9:59-11:00 PM, which appears to be operating on its programmed regeneration schedule.
Hartford, WI 53027
Hartford, WI - Completed comprehensive furnace tune-up on residential gas heating unit, including full system inspection, cleaning of burner assembly and flame sensor, filter replacement with customer-supplied filters, and verification of proper venting through PVC exhaust pipes. Tested blower motor operation, checked all electrical connections, and confirmed system is operating safely within manufacturer specifications. Unit passed all safety checks and is ready for the heating season.
Nicholas H.
Nicholas H. Checked in
Completed comprehensive furnace tune-up on residential gas heating unit, including full system inspection, cleaning of burner assembly and flame sensor, filter replacement with customer-supplied filters, and verification of proper venting through PVC exhaust pipes. Tested blower motor operation, checked all electrical connections, and confirmed system is operating safely within manufacturer specifications. Unit passed all safety checks and is ready for the heating season.
Hartford, WI 53027
Completed full tune-up maintenance on residential HVAC system in basement utility area. Performed comprehensive system diagnostics using Testo 310 combustion analyzer to verify proper operation, efficiency, and safety parameters. Customer provided replacement filter for installation during service visit.
Completed full tune-up maintenance on residential HVAC system in basement utility area. Performed comprehensive system diagnostics using Testo 310 combustion analyzer to verify proper operation, efficiency, and safety parameters. Customer provided replacement filter for installation during service visit.
Scott M.
Scott M. Checked in
Completed full tune-up maintenance on residential HVAC system in basement utility area. Performed comprehensive system diagnostics using Testo 310 combustion analyzer to verify proper operation, efficiency, and safety parameters. Customer provided replacement filter for installation during service visit.
HARTFORD, WI 53027
Hartford, WI - Completed preventive maintenance tune-up on residential gas furnace system. Performed comprehensive inspection of unit, ductwork, and connections; verified proper operation of all components; and documented system condition with photos for service records.
Jacob A.
Jacob A. Checked in
Completed preventive maintenance tune-up on residential gas furnace system. Performed comprehensive inspection of unit, ductwork, and connections; verified proper operation of all components; and documented system condition with photos for service records.
Hartford, WI 53027
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of furnace components including blower motor assembly, gas valve operation, electrical connections, and control board functionality. Utilized digital diagnostic equipment to verify system performance parameters and operational readings. All components found operating within normal specifications with proper wire connections and no visible deterioration noted.
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of furnace components including blower motor assembly, gas valve operation, electrical connections, and control board functionality. Utilized digital diagnostic equipment to verify system performance parameters and operational readings. All components found operating within normal specifications with proper wire connections and no visible deterioration noted.
Nick K.
Nick K. Checked in
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of furnace components including blower motor assembly, gas valve operation, electrical connections, and control board functionality. Utilized digital diagnostic equipment to verify system performance parameters and operational readings. All components found operating within normal specifications with proper wire connections and no visible deterioration noted.
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.