
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 cooling system maintenance visit on Lennox outdoor condensing unit. Performed comprehensive tune-up inspection, measured system temperatures at ductwork registering 23°F, and verified proper operation of all components. Unit found in good working condition with no issues requiring immediate attention.
# HVAC Service Report Responded to no cooling complaint on residential AC unit located in commercial building. Connected manifold gauges to assess refrigerant pressures and system performance. Unit was originally installed by our company over 10 years ago. Diagnosed system issue and performed necessary service procedures to restore cooling operation.
Completed comprehensive AC tune-up on Carrier outdoor condensing unit and performed furnace filter replacement on indoor Carrier furnace system. All components inspected, tested, and verified operating within normal parameters for optimal system performance.
Completed preventative maintenance cooling tune-up as part of recurring membership agreement. Performed comprehensive system inspection in basement, checking furnace and HVAC equipment operation, verifying proper airflow through ductwork, and testing refrigerant pressures using manifold gauges on outdoor condenser unit. All components operating within normal parameters with no deficiencies noted.
Conducted comprehensive estimate for complete HVAC system replacement at residential property. Evaluated existing boiler-based heating system with air handler for conversion to central air conditioning with new ductwork installation. Assessed basement mechanical room containing current equipment including aged HVAC unit, existing copper piping infrastructure, and electrical panel configuration. Inspected exterior location for outdoor condensing unit placement against brick exterior wall with existing concrete pad and electrical disconnect box. Provided detailed replacement specifications for transitioning from boiler system to complete forced-air heating and cooling system with appropriate ductwork design for optimal airflow distribution throughout residence.
Completed installation of new air conditioning system with evaporator coil and 15-foot refrigerant line set. System was properly charged, leak tested, and verified operational with digital manifold gauges confirming appropriate temperatures and pressures across both indoor and outdoor units.
Completed routine preventative maintenance cooling visit on residential air conditioning system as part of recurring family membership program. Performed comprehensive system inspection of outdoor condensing unit, tested refrigerant pressures using manifold gauge set with readings within manufacturer specifications, verified proper operation of all components, and documented equipment condition with unit showing good operational status with no visible defects or required repairs.
Completed full furnace installation in basement utility area, including new heating unit with all necessary electrical and gas connections. Installed new 16x25 F100 filter cabinet to improve air filtration and system efficiency. Replaced existing 2-inch PVC venting and condensate drain piping with new materials to ensure proper exhaust ventilation and moisture removal, while reusing existing thermostat to maintain climate control. All ductwork connections secured to new furnace unit, gas line connected with shut-off valve installed for safety compliance, and system tested for proper operation upon completion.
Responded to service call for non-functional tub spout in bathroom shower/tub combination. Upon arrival, performed diagnostic assessment of existing shower trim assembly and plumbing connections. Attempted replacement of complete shower trim kit to resolve issue; however, determined that underlying rough-in plumbing configuration was incompatible with new trim components. Accessed basement utility area to inspect supply lines and valve assembly behind shower wall. Identified aged brass valve with cross-handle showing significant corrosion and buildup on copper supply piping. Confirmed that existing plumbing infrastructure requires modification before proper trim installation can be completed. Coordinated scheduling for return visit to address rough-in plumbing corrections necessary for successful shower system restoration.
Completed furnace and air conditioning tune-up maintenance on residential HVAC system. Removed and inspected gas burner assembly, which consisted of four circular brass burner heads with proper hole patterns and central openings. Verified gas valve operation, checked all electrical connections and wiring throughout the unit, and inspected flexible gas line and fittings for proper installation and safety. Cleaned burner assembly, reassembled unit, and confirmed proper system operation. Provided estimate for duct cleaning services per customer inquiry.
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.