
In the local Burlington, Wisconsin, area, two things are absolutely certain. First, it’s the birthplace of none other than Tony Romo. Second, the weather here can be quite a challenge, whether it’s scorching hot or bone-numbingly cold. But fear not! You can keep your home or business comfortable all year round by making sure your HVAC and plumbing systems are up to the task.
Our team offers extensive heating, ventilation and air conditioning (HVAC) and plumbing services for property owners in Burlington. We have the tools and expertise to get your systems working right so you can enjoy a smooth-running property throughout the year.
For top-tier services in Burlington, entrust the services of Thielmann Heating, Cooling, & Plumbing by calling (262) 384-6407 or filling out this form to get started.
Dependable AC Services
Keeping cool in the summer requires a good air conditioner (AC). Our dedicated team has the knowledge and skills to provide trusted AC services that help prevent unexpected breakdowns and boost the efficiency of your system. We service the following types of cooling systems:
- Air conditioners: We can work on all models of air conditioning systems for residential and commercial properties.
- Heat pumps: We can repair, replace or maintain energy-efficient heat pumps that deliver warm air to the outside of the property.
- Ductless mini-splits: Get services for ductless HVAC units, which offer climate control for single rooms.
Whether you need air conditioner repair, replacement or maintenance, count on our team to get the job done right. From major overhauls to routine maintenance or repairs, we’ll tend to your air conditioner for a reliable system all season. Our AC services include:
- Air conditioning repair: Refrigerant leaks, frozen coils or a faulty capacitor are some signs you need AC repairs. A technician will examine the unit and fix any issues.
- Air conditioning maintenance: Make the most of your AC. Annual tuneups can help boost the unit’s performance, improve its longevity and avoid costly surprises.
- Air conditioning installation: If it’s time for a new cooling unit, rest assured the HVAC specialists at Thielmann Heating, Cooling, & Plumbing can install your new AC with precision.
Ductwork Services in Burlington, Wisconsin
The air ducts around your home or business are the only link between your HVAC system and your rooms. You may be inconvenienced if any ducts are cracked, broken, disconnected or blocked.
Our team provides comprehensive HVAC and ductwork services for customers in Burlington, Wisconsin, including installation, cleaning, maintenance and repairs.
For all your ductwork needs, call (262) 299-6197 or contact us online to schedule services today.

Top-Rated Heating Services
Staying warm during Wisconsin’s winters can be a struggle if your furnace or boiler isn’t working as it should. No matter what issue you have with your heater, we provide superior heating services. Our technicians offer convenient furnace repair and boiler maintenance services and are available to restore comfort to your property. More about our heating services:
- Heating repairs: If your heater is acting up, get dependable, fast repairs. We can mend heat pumps, boilers, oil and gas furnaces and packed units.
- Heating maintenance: Ensure your heater keeps working as it should with regular heating maintenance from Thielmann Heating, Cooling, & Plumbing. We’ll thoroughly inspect your entire heating system and identify issues that need repair.
- Heating installation: Installing a new heater can clean your indoor air better, use electricity more efficiently and give you more peace of mind. Count on us to install your heater with professionalism and attention to detail.
Reliable Indoor Air Quality Services
The team at Thielmann Heating, Cooling, & Plumbing offers the following indoor air quality services to keep your spaces cleaner and healthier:
Professional Plumbing Services
You rely on your plumbing daily, and when it malfunctions, you need fast service. The expert plumbers at Thielmann Heating, Cooling, & Plumbing are ready to provide quality plumbing assistance. With our assistance, you can enjoy a system with consistent water pressure and durable fixtures. Our plumbing services include:
- Bathroom and kitchen remodels
- Garbage disposal services
- Hose bib replacements
- Sump pump services
- Water conditioning
- Faucet and toilet replacements
- Water heater services
- Plumbing installations
- Plumbing repairs
- Broken pipe repairs
Enjoy clean, safe air throughout your home.Schedule indoor air quality services in New Berlin by contacting us online or calling (262) 299-6197.

See What Makes Us Different
We’re proud to provide quality work with every project. Here’s why you should choose us:
- Committed to quality: We value transparency and have an A+ rating on the Better Business Bureau (BBB).
- Responsive and respectful: Our support staff and technicians listen to your needs and answer every query you may have.
- Seasoned experts: We have licensed technicians skilled in handling all your HVAC and plumbing needs.
Choose Thielmann Heating, Cooling, & Plumbing in Burlington, WI
Since 1929, our team has been the choice for top-quality residential and commercial HVAC services in Burlington and beyond. Our NATE-certified technicians can service all brands, install Lennox-brand units, offer 24/7 emergency care and more.
We’re also proud to extend our capabilities to plumbing, providing comprehensive services you can trust. Plus, we offer upfront pricing, financing options, special deals and a job well done.
For more information, contact us online. You can also call us at (262) 384-6407 or schedule the HVAC and plumbing services you need online.
Read Reviews by Our Customers
EXCELLENT Based on 542 reviews Posted on Stephanie DolnikOctober 10, 2024Trustindex verifies that the original source of the review is Google. Everyone that I have ever came into contact with there has been helpful and wonderful! I would recommend them to anyone!Posted on Aaron WilhelmJuly 19, 2024Trustindex verifies that the original source of the review is Google. Gave me a quote to replace my 29 year old air conditioner.They weren’t the cheapest but were priced with in reason. Installed it quickly and operates wonderfully. I couldn’t be happier.Posted on Lisa FarrellJuly 19, 2024Trustindex verifies that the original source of the review is Google. My husband and I received 5 quotes from 5 different companies before finally deciding upon Thielmann. Although Thielmann was a bit more expensive, the quality we received was outstanding. We went through the Costco Program (Lesa at Menomonee Falls) and received more rebates in doing so. With that program, we received 10% back on our Lennox Air Conditioner and Lennox Furnace. In addition, we received another 2% back by going through Costco and another 2% back by putting it on the Costco Visa card. At any rate, from, Jason, who came to our house to explain what would be done and provide the estimate, to the installers, Ben and Hayden, who provided excellent care installing our new products. They spent the entire day replacing our new HVAC system. The guys were extremely professional and had great precision. Thank you, Thielmann, for a wonderful HVAC system, great customer service, and an amazing job!Posted on Dave SeefeldtJuly 19, 2024Trustindex verifies that the original source of the review is Google. Professional and fast! Installation looks great!Posted on De'Angelo TatumJuly 15, 2024Trustindex verifies that the original source of the review is Google. 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 they did. I had two AC units installed.Posted on Jay OrcholskiJuly 14, 2024Trustindex verifies that the original source of the review is Google. Wayne helped us find the right equipment. Ben and Hyden were great with the install. Wonderful team, as I would highly recommend The Thielmann Group.Posted on Brad DeFauwJune 26, 2024Trustindex verifies that the original source of the review is Google. I recently had the pleasure of working with The Thielmann Group Heating & Air Conditioning to install a mini-split HVAC system for the second floor of our Cape Cod home in Cedarburg, WI, and I couldn't be more satisfied with the entire experience. Professionalism and Expertise: From the initial consultation to the final installation, the team at The Thielmann Group demonstrated exceptional professionalism and expertise. They took the time to thoroughly assess our home and understand our specific cooling needs. Their knowledgeable staff answered all our questions and provided valuable insights into the benefits of a mini-split system for our unique architectural setup. Quality Installation: The installation process was seamless and efficient. The technicians arrived on time, were courteous, and worked diligently to complete the installation with minimal disruption to our daily routine. They were meticulous in their work, ensuring that everything was installed correctly and neatly. I was particularly impressed with their attention to detail and their commitment to maintaining the aesthetic integrity of our home. Performance: The mini-split HVAC system has exceeded our expectations. The second floor, which used to be uncomfortably warm during the summer months, is now perfectly cool and comfortable. The system operates quietly and efficiently, providing consistent temperature control without any noticeable increase in our energy bills. The Thielmann Group's recommendation and installation of this system have significantly improved our home's overall comfort and livability. Customer Service: The customer service we received was outstanding. The Thielmann Group kept us informed throughout the entire process, from scheduling the installation to following up afterward to ensure everything was working properly. They genuinely cared about our satisfaction and went above and beyond to make sure we were happy with their service. Overall Experience: I highly recommend The Thielmann Group Heating & Air Conditioning to anyone in need of HVAC services. Their professionalism, expertise, and commitment to customer satisfaction are truly commendable. Our experience with them was nothing short of excellent, and we are thrilled with the results of our new mini-split HVAC system. Thank you, Thielmann Group, for your exceptional service and for making our home a more comfortable place to live!Posted on Gail EllenbeckerJune 22, 2024Trustindex verifies that the original source of the review is Google. Quick, through team
Recent Jobs and Reviews in Burlington, WI
Job Locations and Reviews
Completed scheduled prepaid membership cooling maintenance visit on residential air conditioning system. Performed comprehensive system diagnostics using Yellow Jacket Titan 4-valve manifold gauge set to measure refrigerant pressures and verify proper system operation. Accessed condenser unit electrical compartment to inspect internal components, wiring connections, and control board for signs of wear or damage. Utilized digital multimeter to test electrical values and ensure proper voltage supply to unit. All refrigerant pressures measured within manufacturer specifications, electrical components functioning normally, and system operating efficiently with no deficiencies noted.
Completed routine cooling system maintenance visit as part of membership agreement. Performed comprehensive inspection of dual HVAC system installation, including air handler and furnace units with PVC venting. Utilized manifold gauge set to check refrigerant pressures and verify system operating within manufacturer specifications.
Completed annual A/C tune-up on Lennox condensing unit and Daikin furnace system. Performed standard maintenance including system inspection, cleaning of outdoor unit showing dirt accumulation on panels, verification of proper operation of all components, and assessment of Aprilaire humidifier integration with ductwork. All equipment found to be operational with no immediate repairs required.
Completed air conditioning tune-up on Daikin air handler system. Performed comprehensive system inspection including electrical testing with digital multimeter to verify proper voltage and amperage readings at control board connections. Documented equipment condition and operational status with photos showing air handler installation, condensate drain piping, and electrical components functioning within manufacturer specifications.
Responded to no hot water complaint at property that had been vacant for several months. Inspected 40-gallon A.O. Smith gas water heater installed in 2019 located in attic space. Found pilot light extinguished, likely due to extended period of non-use. Relit pilot light, verified proper ignition sequence, and confirmed burner operation. Tested hot water delivery at fixtures and verified system returned to normal operation with adequate temperature and pressure.
Responded to emergency service call for existing Lennox furnace system requiring replacement estimate. Diagnosed failed blower motor and flame sensor requiring repair or full system replacement. Evaluated attic-installed air handler and ductwork configuration, documented existing equipment condition with photos and measurements, and provided comprehensive estimate options for customer consideration.
Responded to no heat call on residential furnace system. Upon arrival, removed access panel and performed diagnostic inspection of internal components, control board, and wiring. Identified issue preventing heating operation, completed necessary repairs to restore system functionality, and verified proper operation before departure.
Responded to no-heat emergency call for 15-year-old furnace with failed blower motor. Completed full system replacement installation in basement mechanical room, including new furnace unit with metal ductwork connections and refrigerant line routing. Existing water heater remained in place during furnace changeout, with all new equipment positioned on concrete floor and properly integrated with existing duct distribution system throughout the residence.
Completed annual tune-up on residential air conditioning system. Connected manifold gauge set to measure refrigerant pressures and verify system operation within manufacturer specifications. All refrigerant levels confirmed adequate, unit cycling properly with no leaks detected.
Responded to no heat call on residential furnace system less than 10 years old. Upon arrival, performed diagnostic inspection of unit and electrical connections. Inspected control board wiring, terminal connections, and all associated electrical components to identify cause of heating failure. All wire connections at control board were examined and found to be secure with proper color-coded wiring intact. Verified system operation and completed scheduled tune-up maintenance as requested.
Completed furnace tune-up and air conditioning tune-up on residential HVAC system. Performed comprehensive inspection of indoor air handler unit and outdoor condensing unit, including filter check, electrical connections verification, refrigerant pressure readings, and operational testing of all system components. All equipment found operating within normal parameters with no immediate service needs identified.
Completed HVAC system replacement estimate for a 20+ year old air conditioning unit. Assessment included evaluating the existing furnace, ductwork, and electrical panel configuration to determine requirements for new equipment installation and repositioning the outdoor condenser unit closer to the home structure.
Responded to no cooling complaint on residential HVAC system. Upon arrival, documented existing equipment configuration including indoor air handler unit and outdoor condensing unit, both appearing to be 20+ years old based on visual inspection. Performed diagnostic assessment to identify cause of cooling failure and photographed equipment for service records and potential replacement recommendations due to age of system.
Responded to diagnostic call for reported broken pipe in basement near hose bib connection. Upon inspection, identified copper piping running through recently insulated area with spray foam application. Investigated moisture concerns around iron curtain water treatment system, determining visible wetness was likely condensation rather than active pipe failure. Documented existing plumbing configuration including copper supply lines, fittings, and connections in unfinished basement space with exposed framing and concrete block foundation walls.
Completed comprehensive tune-up maintenance on split system HVAC equipment, including outdoor Lennox condenser unit and indoor air handler located in attic space. Performed standard preventive maintenance procedures including inspection of all major components, verification of refrigerant line connections, cleaning of condenser coils, testing of electrical connections, and confirmation of proper system operation. All equipment found to be functioning within normal operating parameters with no deficiencies noted at time of service.
Performed complete tune-up and diagnostic evaluation on residential air conditioning system. Connected manifold gauges to verify refrigerant pressures and system performance, inspected condenser unit operation, and ensured all electrical connections and components were functioning within manufacturer specifications. All system parameters tested normal with unit operating efficiently.
Completed HVAC system evaluation for replacement estimate on existing Bryant furnace located in interior mechanical closet and Carrier Puron condensing unit positioned on exterior concrete pad. Assessed current equipment condition, ductwork configuration, electrical connections, and refrigerant line routing to determine specifications and scope for complete system replacement.
Completed installation of new Lennox air conditioning condenser unit with matching evaporator coil system. Positioned outdoor condenser on rubber equipment pad with concrete foundation base, ensuring proper clearance from building structure for optimal airflow and serviceability. Ran refrigerant line set with black foam insulation from outdoor unit to indoor coil location, securing copper lines along exterior wall. Installed PVC condensate drain line routing from indoor coil to exterior discharge point. Verified all electrical connections, refrigerant charge levels, and system pressures meet manufacturer specifications. Tested complete system operation including compressor function, fan motor performance, and airflow delivery to confirm proper cooling cycle and temperature differential across coil.
Completed HVAC system replacement estimate for residential property. Evaluated existing Goodman furnace model EL296UH070XE36B and outdoor condensing unit, both showing signs of age and wear. Provided replacement options and specifications for new high-efficiency heating and cooling equipment.
Completed warranty inspection of basement HVAC system and electrical components. Documented exposed mechanical systems, ductwork, and electrical panel installation in unfinished basement area, confirming all components are properly mounted and accessible for future service needs.