
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 full HVAC system installation including new furnace, air conditioning unit, S40 thermostat, F100 media air cleaner, return platform, and Patriot condensate pump. Coordinated with electrician for proper electrical connections and obtained all necessary permits prior to installation. Installed outdoor condensing unit on concrete pad with proper refrigerant line routing and insulation, mounted new furnace with integrated return air platform in mechanical space, and installed PVC condensate drainage system with vertical discharge pipe secured to exterior siding. Commissioned system with complete startup procedures, verified proper refrigerant charge and pressures using digital manifold gauges, confirmed electrical connections meet code requirements, and tested all system components for proper operation including airflow, temperature differential, and safety controls.
Completed scheduled cooling system maintenance on Bryant air conditioning unit as part of prepaid membership service. Performed comprehensive tune-up including refrigerant pressure testing using manifold gauge set, inspected internal components with top panel removed, and verified proper operation of condenser fan and refrigerant lines. All systems operating within normal parameters upon completion of service.
Completed comprehensive cooling system tune-up and maintenance as part of membership agreement, including full system inspection with panel access. Replaced dirty air filter showing significant dust and debris accumulation. Performed refrigerant pressure and temperature readings using manifold gauge set to verify proper system charge and operation. Discussed duct cleaning services with homeowner for future consideration.
Responded to service call for noisy blower on operational furnace system. Upon inspection, evaluated existing HVAC equipment including furnace/air handler unit and associated ductwork in basement utility area. Documented current system configuration with water heater proximity and existing mechanical layout. Provided estimate for complete HVAC system replacement to address blower noise issue and aging equipment concerns.
Completed preventative maintenance tune-up on Carrier furnace system in residential basement. Inspected all major components including heat exchanger, blower assembly, and condensate drainage system; noted moisture staining and discoloration on metal ductwork panels indicating previous condensation issues, though system is currently operational. All connections, gas lines, electrical components, and safety controls verified functioning within normal parameters.
Completed comprehensive AC tune-up service on residential HVAC system. Performed refrigerant pressure diagnostics using manifold gauge set, verified system operating parameters, and inspected furnace unit with associated PVC venting for proper operation and clearances.
Responded to emergency plumbing service call following property break-in where all copper piping had been stripped from the residential system. Conducted comprehensive assessment of the property to document the extent of damage and determine scope of restoration work required. The theft included complete removal of copper supply lines servicing the water heater, water softener, exterior hose bibs, and furnace connections. Inspected remaining plumbing infrastructure and mechanical equipment to evaluate salvageable components and identify all connection points requiring replacement. Documented existing water heater installation showing oxidized copper piping remnants, metallic tape insulation at junction points, and mounting hardware still in place. Examined underside of water heater tank, noting remaining PVC drain connections, flexible supply lines, and corroded pipe stubs where copper had been cut away. Assessed mechanical room conditions including white painted surfaces showing acc
Responded to service call for continuous dripping from indoor evaporator coil on Gibson air handler unit located in attic space. Upon inspection, confirmed active condensate leak from 5-6 year old indoor coil assembly. Documented existing system conditions including air handler installation, condensate drain line configuration with PVC piping and securing straps, and outdoor condensing unit positioned on concrete pad with proper clearances. Photographed equipment and leak source for service records and provided recommendations for repair options to address the continuous drip issue affecting the HVAC system performance.
Completed full HVAC system installation including new air conditioning condenser unit and evaporator coil. Flushed existing refrigerant line set to remove contaminants and ensure system integrity. Installed new refrigerant lines with proper insulation and secured all copper piping with brass fittings. Configured exterior PVC condensate drainage system with appropriate pitch and connections. Coordinated with licensed electrician for electrical disconnects and power supply connections. Pulled necessary municipal permits for installation. Pressure tested system, evacuated lines, and charged unit to manufacturer specifications. Verified proper superheat and subcooling readings using digital manifold gauges, confirming optimal refrigerant charge and system performance. All components secured to building exterior with proper mounting hardware and weatherproofing. System operational and running within normal parameters upon completion.
Responded to no cooling call on residential HVAC system. Upon arrival, inspected outdoor unit electrical components and found failed capacitor preventing compressor operation. Replaced defective dual run capacitor with proper rated replacement, verified all electrical connections secure, and tested system operation. Unit restored to normal cooling function with compressor and condenser fan motor running properly.
Serviced 2012 Mitsubishi Electric wall-mounted mini-split system with no cooling complaint that had never received maintenance since installation. Performed comprehensive cleaning of indoor unit including filters, coils, and blower wheel, restored proper airflow and cooling operation to the system.
Provided estimate for replacement of 26-year-old air handler unit located in basement that has stopped working. Assessed existing HVAC system, documented current equipment condition, and photographed installation area including ductwork connections and electrical components to prepare comprehensive replacement proposal.
Responded to no cooling call on older residential air conditioning system. Upon arrival, confirmed condenser unit failed to start. Performed diagnostic evaluation to determine root cause of compressor failure. Inspected indoor furnace components and verified proper airflow through system. Documented existing Lennox Pulse Series equipment condition and captured photos of installation for service records. Customer advised of findings and repair options for aging HVAC system.
# HVAC No Cool Service Call Responded to no cooling complaint at residential property. Upon inspection, found outdoor condensing unit with excessive dirt, debris, and organic matter accumulation throughout electrical compartment and on capacitor housing. Electrical connections showed signs of corrosion and oxidation at terminal blocks. Multiple wire connections exhibited dirt buildup and environmental exposure. Cobwebs present on internal components indicating extended period without maintenance. Equipment condition suggested compromised airflow and potential electrical connection issues contributing to system failure. Cleaned electrical connections, removed debris from compartment, and addressed contamination affecting unit performance. System operational upon completion of service.
Responded to no cooling emergency call and performed comprehensive system assessment. Documented existing HVAC equipment configuration including furnace unit, ductwork, and condensing unit setup in mechanical room. Evaluated current system condition, noting operational components, electrical connections, and PVC condensate drainage. Provided detailed replacement estimate for complete HVAC system upgrade to restore cooling capability and improve overall system efficiency.
Conducted estimate for water heater replacement due to active leak in existing unit. Assessed plumbing infrastructure including PVC drainage lines, supply piping, and ceiling-mounted utility systems in unfinished space to determine replacement requirements and accessibility for installation.
Responded to emergency service call for aging HVAC system that was temporarily restored to operation but requires replacement evaluation. Conducted comprehensive assessment of existing Arcoaire furnace installation, including inspection of internal components, blower motor assembly, control boards, electrical wiring harnesses, and burner assemblies. Evaluated PVC condensate drain line configuration and venting system integrity. Documented current system condition through detailed photography showing cabinet construction, mechanical components, and Aprilaire air cleaner integration. Provided estimate for complete furnace and air conditioning system replacement based on equipment age and observed wear patterns.
Responded to no cooling complaint on residential air conditioning system. Upon arrival, performed diagnostic evaluation of outdoor condensing unit and associated components. Unit location and installation appear standard with proper clearances maintained. Documented equipment condition and positioning for service records. System requires further troubleshooting to identify root cause of cooling failure and determine necessary repairs for restoration of normal operation.
Responded to no cooling call on 22-year-old system experiencing freeze-up condition. Upon arrival, unit was off and evaporator coil was frozen. Inspected outdoor condenser unit and found electrical compartment heavily contaminated with leaves, dirt, and organic debris accumulation, indicating extended period without maintenance. Cleaned electrical components and removed all debris from contactor housing to restore proper operation and prevent potential electrical failures. Cycled system and verified proper operation after thaw period.
Performed comprehensive air conditioning tune-up on residential outdoor condensing unit. Connected manifold gauge set to measure refrigerant pressures, conducted electrical diagnostics with digital multimeter, and completed standard maintenance procedures to ensure optimal system performance and efficiency.