
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
Conducted inspection of existing HVAC system for potential replacement. Examined electrical panel to verify adequate capacity for new equipment. Accessed furnace unit with front panel removed to evaluate internal components and wiring condition. Documented current setup including water heater proximity and PVC ventilation/drainage configuration to determine optimal replacement strategy.
Performed routine maintenance on Honeywell HVAC system, which included inspection of internal components and wiring connections. Replaced heavily soiled air filter with significant dust accumulation that was restricting airflow. All systems verified operational after service.
Responded to no heat call for Honeywell furnace less than 10 years old. Inspection revealed faulty circuit board causing system failure. Replaced defective board, verified proper operation of all electrical components, and tested system through complete heating cycle. Unit now functioning correctly with normal flame pattern and proper exhaust venting through PVC piping system.
Conducted visual inspection of basement utility area containing water heater and associated ductwork. Evaluated existing cylindrical gray water heater installation, noting connection points to metal piping network and ventilation system. Assessed concrete block wall conditions and examined ceiling-mounted utility connections for potential replacement considerations.
Performed scheduled maintenance inspection on residential HVAC system, accessing internal components of the furnace for comprehensive evaluation. Inspected electrical connections, control wiring, and mounting brackets for signs of wear; noted minor corrosion around cable entry point which was cleaned and treated to prevent further deterioration.
Performed routine tune-up on HVAC system including combustion analysis with Testo 310 II gas analyzer. Readings showed proper operation with 87.4% efficiency, acceptable CO levels (2 ppm), and normal stack temperature (109.8°F). Inspected interior components and wiring connections, making minor adjustments to ensure optimal performance.
Performed comprehensive tune-up on customer's furnace unit. Inspected all internal components including blower motor assembly, circuit board, and wiring connections. Cleaned key components and verified proper operation of system. No issues were identified; equipment is functioning within normal parameters.
Conducted inspection of existing HVAC system in basement mechanical room. Documented current furnace installation and associated PVC drain/vent piping (Schedule 40 DWV). Photos taken of utility area showing furnace unit with manufacturer labels and the existing white PVC piping infrastructure with proper labeling (Crestline Coextruded Cellular Core PVC DWV IPS SCH 40 Series NSF) for assessment and replacement planning.
Completed routine HVAC maintenance agreement service on gas furnace system. Inspected internal components including motor assembly, wiring harnesses, and ventilation system. Verified proper operation of PVC drainage/ventilation pipes and examined ductwork integrity in basement installation.
Performed comprehensive tune-up on gas furnace system. Inspected internal components including electrical connections, ignitor probe, pressure switch, and control board - all functioning properly. Cleaned interior housing and verified proper operation of blower motor and gas valve. System is operating within manufacturer specifications with no safety concerns noted.
Performed scheduled preventive maintenance on residential HVAC furnace system. Inspected interior components including control board, wiring connections, condensate trap, and gas valves - all found in normal working condition. Examined blower assembly and verified proper operation of all mechanical components with no abnormalities detected.
Responded to no-heat service call for system less than 10 years old. Diagnosed blower motor failure in air handler unit. Removed and replaced blower assembly after cleaning accumulated dust from fan coil unit and inspecting interior components. System restored to proper operation and heat function verified.
Completed comprehensive tune-up on customer's HVAC system, including inspection of internal components, electrical connections, and control board functionality. Identified significant water damage to ceiling near unit, likely caused by condensate drain blockage or leak in the system. Cleared drainage pathway and recommended repair of damaged ceiling material to prevent potential mold growth and further structural deterioration.
Performed comprehensive tune-up service on HVAC system including electrical component testing and diagnostics. Conducted thorough inspection of blower motor assembly, examining all electrical connections and wiring integrity. Utilized digital diagnostic equipment to verify proper voltage readings and system functionality, ensuring optimal performance of the unit.
Performed warranty inspection on Goodman HVAC unit (model S0602UBV000AAF). Examined electrical components including 1/4 HP motor and control board. Inspected relay switch with multiple terminal connections (1,3,4,5) and verified proper wiring configuration of all connections (red, yellow, black, white, and pink wires).
Conducted complete assessment of existing HVAC system consisting of an aging Bryant furnace installed in basement utility room with connected ductwork and PVC exhaust piping, along with outdoor condenser unit positioned on mulched ground adjacent to the home's foundation. Provided comprehensive replacement estimate for full system upgrade including removal of existing equipment, installation of new high-efficiency components, and all necessary modifications to ensure proper operation and code compliance.
Performed diagnostic inspection on gas furnace, observing proper flame pattern at burner assembly and verifying primary control functionality. Inspected internal components including blower motor, circuit board connections, and PVC venting system. All systems functioning as designed with no issues detected.
Performed maintenance service on American Standard Freedom 80 furnace. Identified and documented frost/ice formation on evaporator coil indicating potential refrigerant flow issues. Completed visual inspection of unit components and ventilation system to ensure proper operation.
Performed comprehensive HVAC system tune-up including inspection of furnace internal components and wiring connections. Tested electrical systems with multimeter to verify proper voltage and functionality. Checked and confirmed Honeywell thermostat operation, noting current temperature (78°) versus set point (70°) to ensure proper communication with the HVAC system.
Inspected furnace humidifier and found significant buildup on the evaporator pad/filter. Removed and replaced the contaminated mesh element, cleaned the housing assembly, and verified proper water flow to ensure optimal humidity control during heating season operation.