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

Performed routine tune-up service on residential HVAC system, inspecting the furnace/air handler unit and associated PVC ventilation pipes. Checked all connections on both the HVAC components and adjacent plumbing system, confirming proper installation and functionality of all components. No issues were identified during the inspection.
Performed routine tune-up service on residential HVAC system, inspecting the furnace/air handler unit and associated PVC ventilation pipes. Checked all connections on both the HVAC components and adjacent plumbing system, confirming proper installation and functionality of all components. No issues were identified during the inspection.
Nick K.
Nick K. Checked in
Performed routine tune-up service on residential HVAC system, inspecting the furnace/air handler unit and associated PVC ventilation pipes. Checked all connections on both the HVAC components and adjacent plumbing system, confirming proper installation and functionality of all components. No issues were identified during the inspection.
Hartford, WI 53027
Hartford, WI - Performed diagnostic service on aging HVAC system (10+ years) for no cooling complaint. Inspection of internal components revealed normal condition with no visible damage; examined control board connections and verified proper wire terminations at thermostat terminals. System was returned to proper cooling operation after cleaning electrical contacts and verifying refrigerant pressures within manufacturer specifications.
Nick K.
Nick K. Checked in
Performed diagnostic service on aging HVAC system (10+ years) for no cooling complaint. Inspection of internal components revealed normal condition with no visible damage; examined control board connections and verified proper wire terminations at thermostat terminals. System was returned to proper cooling operation after cleaning electrical contacts and verifying refrigerant pressures within manufacturer specifications.
Hartford, WI 53027
Successfully installed new high-efficiency furnace in basement utility area, including proper connection of intake/exhaust PVC venting system and gas line. Installed condensate drainage system with proper routing to floor drain, and completed all necessary connections to existing ductwork.
Successfully installed new high-efficiency furnace in basement utility area, including proper connection of intake/exhaust PVC venting system and gas line. Installed condensate drainage system with proper routing to floor drain, and completed all necessary connections to existing ductwork.
Hayden L.
Hayden L. Checked in
Successfully installed new high-efficiency furnace in basement utility area, including proper connection of intake/exhaust PVC venting system and gas line. Installed condensate drainage system with proper routing to floor drain, and completed all necessary connections to existing ductwork.
Hartford, WI 53027
Conducted assessment for HVAC system replacement. Inspected existing equipment components including insulated refrigerant lines and copper tubing. Evaluated workspace conditions and equipment placement options in garage/workshop area. Prepared estimate for complete system replacement based on visual inspection findings.
Conducted assessment for HVAC system replacement. Inspected existing equipment components including insulated refrigerant lines and copper tubing. Evaluated workspace conditions and equipment placement options in garage/workshop area. Prepared estimate for complete system replacement based on visual inspection findings.
Bryan P.
Bryan P. Checked in
Conducted assessment for HVAC system replacement. Inspected existing equipment components including insulated refrigerant lines and copper tubing. Evaluated workspace conditions and equipment placement options in garage/workshop area. Prepared estimate for complete system replacement based on visual inspection findings.
Hartford, WI 53027
Performed comprehensive tune-up on older model furnace unit. Accessed internal components for inspection and cleaning. Conducted combustion analysis using Bacharach analyzer, which revealed O₂ at 5.7%, CO at 42 ppm, efficiency at 82.9%, and CO₂ at 11.3%. System is functioning within acceptable parameters but operating at moderate efficiency.
Performed comprehensive tune-up on older model furnace unit. Accessed internal components for inspection and cleaning. Conducted combustion analysis using Bacharach analyzer, which revealed O₂ at 5.7%, CO at 42 ppm, efficiency at 82.9%, and CO₂ at 11.3%. System is functioning within acceptable parameters but operating at moderate efficiency.
Nicholas H.
Nicholas H. Checked in
Performed comprehensive tune-up on older model furnace unit. Accessed internal components for inspection and cleaning. Conducted combustion analysis using Bacharach analyzer, which revealed O₂ at 5.7%, CO at 42 ppm, efficiency at 82.9%, and CO₂ at 11.3%. System is functioning within acceptable parameters but operating at moderate efficiency.
Hartford, WI 53027
Performed comprehensive tune-up on residential HVAC system. Inspected and serviced furnace components including blower motor assembly, circuit board connections, and gas line fittings. Replaced worn coupling component on motor assembly and verified proper electrical connections to ensure optimal system performance.
Performed comprehensive tune-up on residential HVAC system. Inspected and serviced furnace components including blower motor assembly, circuit board connections, and gas line fittings. Replaced worn coupling component on motor assembly and verified proper electrical connections to ensure optimal system performance.
Nick K.
Nick K. Checked in
Performed comprehensive tune-up on residential HVAC system. Inspected and serviced furnace components including blower motor assembly, circuit board connections, and gas line fittings. Replaced worn coupling component on motor assembly and verified proper electrical connections to ensure optimal system performance.
Hartford, WI 53027
Performed diagnostic inspection of furnace interior components, examining electrical connections and control modules. Identified and replaced faulty pressure switch that was preventing proper system operation. Tested system after repair, confirming all components functioning within normal parameters and restoring heat to residence.
Performed diagnostic inspection of furnace interior components, examining electrical connections and control modules. Identified and replaced faulty pressure switch that was preventing proper system operation. Tested system after repair, confirming all components functioning within normal parameters and restoring heat to residence.
Nick K.
Nick K. Checked in
Performed diagnostic inspection of furnace interior components, examining electrical connections and control modules. Identified and replaced faulty pressure switch that was preventing proper system operation. Tested system after repair, confirming all components functioning within normal parameters and restoring heat to residence.
Hartford, WI 53027
Performed comprehensive tune-up on HVAC system, inspecting ductwork throughout unfinished basement area. Examined connections between metal ducts and PVC condensate lines, verifying proper installation and sealing at all junction points. No issues identified with the existing ductwork configuration or drainage system.
Performed comprehensive tune-up on HVAC system, inspecting ductwork throughout unfinished basement area. Examined connections between metal ducts and PVC condensate lines, verifying proper installation and sealing at all junction points. No issues identified with the existing ductwork configuration or drainage system.
Nick K.
Nick K. Checked in
Performed comprehensive tune-up on HVAC system, inspecting ductwork throughout unfinished basement area. Examined connections between metal ducts and PVC condensate lines, verifying proper installation and sealing at all junction points. No issues identified with the existing ductwork configuration or drainage system.
Hartford, WI 53027
Performed inspection of existing Lennox Pulse furnace showing significant age deterioration and outdated technology. Documented current installation including PVC venting configuration and basement utility space constraints. Recommended complete system replacement with modern high-efficiency unit to address reliability concerns, improve energy efficiency, and ensure proper ventilation standards per current code requirements.
Performed inspection of existing Lennox Pulse furnace showing significant age deterioration and outdated technology. Documented current installation including PVC venting configuration and basement utility space constraints. Recommended complete system replacement with modern high-efficiency unit to address reliability concerns, improve energy efficiency, and ensure proper ventilation standards per current code requirements.
Steven S.
Steven S. Checked in
Performed inspection of existing Lennox Pulse furnace showing significant age deterioration and outdated technology. Documented current installation including PVC venting configuration and basement utility space constraints. Recommended complete system replacement with modern high-efficiency unit to address reliability concerns, improve energy efficiency, and ensure proper ventilation standards per current code requirements.
Hartford, WI 53027
Hartford, WI - Performed diagnostic inspection on residential furnace system with access panel open to examine control board and internal wiring. Inspected gas line connection and PVC ventilation/drainage pipes for proper installation and functionality. All components were verified to be operating within normal parameters after service completion.
Nick K.
Nick K. Checked in
Performed diagnostic inspection on residential furnace system with access panel open to examine control board and internal wiring. Inspected gas line connection and PVC ventilation/drainage pipes for proper installation and functionality. All components were verified to be operating within normal parameters after service completion.
Hartford, WI 53027
Responded to no heat complaint on Lennox furnace less than 10 years old. Inspection revealed failed inducer motor preventing proper system operation. Replaced inducer motor assembly, verified proper installation of all electrical connections, and tested system through multiple heating cycles. Unit now functioning correctly with normal flame pattern and appropriate temperature rise.
Responded to no heat complaint on Lennox furnace less than 10 years old. Inspection revealed failed inducer motor preventing proper system operation. Replaced inducer motor assembly, verified proper installation of all electrical connections, and tested system through multiple heating cycles. Unit now functioning correctly with normal flame pattern and appropriate temperature rise.
Makinze C.
Makinze C. Checked in
Responded to no heat complaint on Lennox furnace less than 10 years old. Inspection revealed failed inducer motor preventing proper system operation. Replaced inducer motor assembly, verified proper installation of all electrical connections, and tested system through multiple heating cycles. Unit now functioning correctly with normal flame pattern and appropriate temperature rise.
Hartford, WI 53027
Successfully installed a complete Lennox HVAC system in the utility area, including proper connection of copper and PVC piping with appropriate valve controls. Completed the installation with PVC ventilation piping to the exterior, ensuring proper system drainage and ventilation.
Successfully installed a complete Lennox HVAC system in the utility area, including proper connection of copper and PVC piping with appropriate valve controls. Completed the installation with PVC ventilation piping to the exterior, ensuring proper system drainage and ventilation.
Branden B.
Branden B. Checked in
Successfully installed a complete Lennox HVAC system in the utility area, including proper connection of copper and PVC piping with appropriate valve controls. Completed the installation with PVC ventilation piping to the exterior, ensuring proper system drainage and ventilation.
Hartford, WI 53027
Performed routine tune-up on aging HVAC system, documenting significant rust/corrosion on internal metal components near the control board. Identified potential moisture exposure affecting the main circuit board with visible damage to surrounding wiring connections. Recommend system evaluation for possible replacement due to advanced corrosion that may compromise electrical integrity and system reliability.
Performed routine tune-up on aging HVAC system, documenting significant rust/corrosion on internal metal components near the control board. Identified potential moisture exposure affecting the main circuit board with visible damage to surrounding wiring connections. Recommend system evaluation for possible replacement due to advanced corrosion that may compromise electrical integrity and system reliability.
Nicholas H.
Nicholas H. Checked in
Performed routine tune-up on aging HVAC system, documenting significant rust/corrosion on internal metal components near the control board. Identified potential moisture exposure affecting the main circuit board with visible damage to surrounding wiring connections. Recommend system evaluation for possible replacement due to advanced corrosion that may compromise electrical integrity and system reliability.
Hartford, WI 53027
Hartford, WI - Conducted comprehensive electrical panel inspection for HVAC system replacement evaluation. Documented existing circuit configuration, including dedicated breakers for furnace, A/C, and related appliances. Panel assessment completed to ensure proper electrical capacity for proposed HVAC equipment installation.
Bryan P.
Bryan P. Checked in
Conducted comprehensive electrical panel inspection for HVAC system replacement evaluation. Documented existing circuit configuration, including dedicated breakers for furnace, A/C, and related appliances. Panel assessment completed to ensure proper electrical capacity for proposed HVAC equipment installation.
Hartford, WI 53027
Hartford, WI - Responded to no heat complaint on aging furnace. Upon inspection, found failed control board with visible burnt components. Replaced main circuit board, performed comprehensive system test, and verified proper operation through multiple heating cycles.
Nicholas H.
Nicholas H. Checked in
Responded to no heat complaint on aging furnace. Upon inspection, found failed control board with visible burnt components. Replaced main circuit board, performed comprehensive system test, and verified proper operation through multiple heating cycles.
Hartford, WI 53027
Hartford, WI - Performed comprehensive tune-up service on customer's HVAC system. Removed front panel to inspect internal electrical components, including wiring connections and circuit boards. All components were found to be in proper working order with no signs of wear or damage requiring immediate attention.
Nicholas H.
Nicholas H. Checked in
Performed comprehensive tune-up service on customer's HVAC system. Removed front panel to inspect internal electrical components, including wiring connections and circuit boards. All components were found to be in proper working order with no signs of wear or damage requiring immediate attention.
Hartford, WI 53027
Completed water heater installation of Capri unit with proper copper piping connections. Installed control valve assembly with marked flow settings and connected to existing PVC drainage system. All components were secured to wall with no leaks observed during final inspection.
Completed water heater installation of Capri unit with proper copper piping connections. Installed control valve assembly with marked flow settings and connected to existing PVC drainage system. All components were secured to wall with no leaks observed during final inspection.
Kyle L.
Kyle L. Checked in
Completed water heater installation of Capri unit with proper copper piping connections. Installed control valve assembly with marked flow settings and connected to existing PVC drainage system. All components were secured to wall with no leaks observed during final inspection.
Hartford, WI 53027
Hartford, WI - Performed comprehensive system inspection and tune-up on HVAC unit. Checked Sensi thermostat functionality, confirming proper temperature reading at 69°F and verifying all control buttons were operational. System is functioning within normal parameters with no issues detected.
Nick K.
Nick K. Checked in
Performed comprehensive system inspection and tune-up on HVAC unit. Checked Sensi thermostat functionality, confirming proper temperature reading at 69°F and verifying all control buttons were operational. System is functioning within normal parameters with no issues detected.
Hartford, WI 53027
Hartford, WI - Replaced defective General Filter model 1A-25A with new unit. Installed compatible refill 1A-30 as specified by manufacturer. Verified proper connection to existing plumbing components and confirmed system operation after installation.
Kevin P.
Kevin P. Checked in
Replaced defective General Filter model 1A-25A with new unit. Installed compatible refill 1A-30 as specified by manufacturer. Verified proper connection to existing plumbing components and confirmed system operation after installation.
Hartford, WI 53027
Hartford, WI - Successfully installed a complete water treatment system in the utility area, consisting of a primary blue cylindrical water filter tank with digital control valve and a blue rectangular water softener with brine tank. System was properly connected to the existing copper supply lines with appropriate PVC fittings, ensuring proper functionality and optimal water quality for the residence.
Kyle L.
Kyle L. Checked in
Successfully installed a complete water treatment system in the utility area, consisting of a primary blue cylindrical water filter tank with digital control valve and a blue rectangular water softener with brine tank. System was properly connected to the existing copper supply lines with appropriate PVC fittings, ensuring proper functionality and optimal water quality for the residence.
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.