Your HVAC system helps keep your home comfortable regardless of the weather outside. From snowy winters to blazing summers, your heating and air conditioning help keep your family comfortable and safe from the elements.
Our team of HVAC professionals at The Thielmann Group Heating and Cooling understands this and is dedicated to providing outstanding customer service and HVAC service in Brookfield that will keep your system running smoothly for a long time. We offer heating and air conditioning services for every style of HVAC system, and we are ready to serve our local community in the Brookfield, Wisconsin area!
Air Conditioning Repair and Tune-Up Services
As temperatures rise over the summer, your air conditioning keeps you and your family cool and comfortable. Our team of HVAC professionals at The Thielmann Group offers air conditioning service in Brookfield, WI, to keep your system in peak condition and save you money on more expensive repairs later down the road. We tailor our services to meet your home’s needs while staying within budget.
AC Replacement and Installation Services
Maintaining a comfortable temperature in your home during the blazing Brookfield summers is important in keeping your family safe and comfortable. As Brookfield’s trusted HVAC experts, we handle every aspect of your AC replacement project and understand the importance of a well-functioning air conditioner, which is why we offer specialized air conditioner replacement and installation services to keep your HVAC system running at its highest potential throughout the summer.
Ductless Mini-Split Installation and Repair Services
While the traditional HVAC setup requires a separate air conditioning unit and furnace to provide heat and cool air, a ductless mini-split HVAC system provides heating and cooling solutions with only one system. It can be a versatile heating and cooling option for both the summer and winter. The Thielmann Group offers installation and repair services for ductless mini-split HVAC systems to keep your home cool and comfortable.
Furnace Repair and Cleaning Services
Your furnace keeps your home nice and toasty even when there is snow outside your window. Our team at The Thielmann Group offers furnace repair in Brookfield, WI, including repairs and cleanings to keep your furnace running smoothly. Yearly furnace cleanings can help prolong the lifespan of your furnace and prevent more costly repairs later down the road.
Furnace Installation and Replacement Services
A reliable furnace can help keep your family warm even during the snowy winter months. Our team of professional furnace technicians offers an expert and thorough furnace service in Brookfield, WI that includes same-day services and customer-focused solutions that will last a lifetime. Whether replacing your outdated furnace or installing a brand new furnace, our team at The Thielmann Group is ready to help every step of the way.
Heat Pump System Installation Services
Heat pumps offer an alternative to the traditional furnace method of heating your home. Our team of professionals at The Thielmann Group offers upfront pricing, free estimates, and a customized installation plan to keep the process as smooth as possible and provide results that will last a lifetime. We offer heat pump installation services to keep your home heated—even if snow is on the ground outside.
Boiler Installation and Repair Services
Boilers don’t just provide your home with warm water during the winter months, but they can also heat your home as part of your HVAC system. We offer boiler installation and repair services to ensure your home remains heated and comfortable.
Thermostat Installation and Repair Services
The thermostat in your home is like the brain of your HVAC system, controlling whether the heating or cooling system is running and the temperature your home needs to maintain. A good-quality thermostat gives you extensive control over the temperature of your home and endless customization options. The Thielmann Group offers thermostat installation and repair services for both smart thermostats and traditional thermostat systems.
Commercial Heating Maintenance and Installation Services
Your business or other commercial building requires reliable heating and cooling to keep work running smoothly and employees comfortable every season. Our HVAC technicians at The Thielmann Group are trained and certified to provide top-notch heating and cooling services for commercial buildings in the Brookfield area. We also offer air quality services including repairing faulty ductwork.
Have Fun this Weekend Instead of Worrying About HVAC Issues in Your Home
Leaving the dirty work to the professionals at The Thielmann Group ensures that your HVAC system is in good hands, but also gives you the freedom to enjoy your weekend with your family and friends instead of worrying about HVAC issues in your home. If you want to explore family entertainment, swing by the Silverspot Theater in downtown Brookfield. While we work on your home, take a break and enjoy some delicious tacos at the Belair Cantina. Enjoy your time off, and leave the heating and cooling services for your Brookfield home to us!
Our Professionals Will Keep Your Home Comfortable During the Autumn, Winter, Spring, and Summer Seasons
As the seasons change, so do your HVAC needs. Summers in Brookfield can get as cold as 10 degrees Fahrenheit, and your heating needs to maintain a comfortable temperature in your home. Also, in the summer, your air conditioning keeps you comfortable and protected from the blazing temperatures of up to 90 degrees Fahrenheit Our team of experts at The Thielmann Group is ready to work with you on any repair or maintenance services to keep your HVAC system in peak condition to withstand the weather outside your door.
Book a Heating or Cooling Appointment With Our Team in Brookfield
Are you looking to schedule an appointment with one of our expert HVAC technicians? Contact The Thielmann Group Heating & Cooling online or over the phone at (626) 600-3896 for a free estimate or to schedule a visit. Our team is ready and available to answer any questions or concerns you may have. Whether it is your heating or air conditioning, our team is ready to get the job done.
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Recent Jobs and Reviews in Brookfield, WI
Brookfield, WI at a glance
Thielmann Heating, Cooling & Plumbing has completed 20 jobs in Brookfield, WI between September 2026 and October 2026.
The most recent job was on October 16, 2026.
Thielmann Heating, Cooling & Plumbing has completed 161 jobs in Brookfield, WI in the last 12 months.
Job Locations and Reviews
Responded to a reported furnace leak and performed a diagnostic inspection of the upright gas furnace, removing the front access panel to examine the inducer/blower assembly, burner compartment, gas valve, wiring, and control components. Inspected the PVC condensate drain piping and surrounding plenum and ductwork, noting chalky corrosion or residue buildup on the galvanized supply plenum consistent with moisture exposure, to identify the source of the leak.
Installed a new 40-gallon natural gas Bradford White tall water heater, connecting the gas supply, domestic water lines, and flue vent to meet code requirements. Verified proper expansion tank mounting on the brass manifold fitting, confirmed all connections were secure, and left the manufacturer's BuiltBest+4 extended warranty registration information with the unit.
Performed a furnace tune-up, inspecting the gas valve assembly, flame sensor/igniter, wiring connections, and inducer motor housing, all of which showed light dust and normal wear with no signs of rust, frost, or breakage. Verified system operation and measured a supply air temperature of 122.5°F at the register, confirming the unit is heating normally.
Performed tune-ups on two basement gas furnaces, including inspection of burner assemblies and electrical measurements with a clamp meter on the blower motor circuit. Significant corrosion was found at the heat exchanger inlet openings on one unit, along with oxidation on the burner tubes, and further evaluation of the heat exchanger's condition is recommended.
Performed a furnace tune-up, including electrical diagnostics with a true RMS clamp multimeter to verify component readings, such as capacitance (MFD) and amperage draw. Inspected the unit's operating condition and confirmed system components were within normal operating parameters.
Completed scheduled prepaid heating maintenance visit on residential furnace system. Performed comprehensive inspection of gray metal vertical furnace unit installed in basement, including visual examination of cabinet, control components, and ductwork connections. Documented equipment condition with photos showing furnace installation, mounted condensate component, and flexible duct connection. System operational and ready for heating season.
Responded to service call for leaking water heater. Upon arrival, performed diagnostic inspection and confirmed active water leak from tanked water heater unit. Assessed condition of equipment and surrounding area, documenting water damage on basement floor near base of unit. Evaluated water heater for potential repair versus replacement, noting age and extent of leak. Photographed existing plumbing configuration including water softener system, brine tank, copper supply lines, and venting assembly for service records.
Completed comprehensive furnace tune-up on residential gas heating system following recent installation. Performed full system inspection including visual examination of all internal components, gas valve assembly, blower motor, electrical connections, and PVC venting system. Verified proper operation of all safety controls, confirmed secure wiring connections throughout unit, and ensured combustion air intake and exhaust venting were properly installed and sealed. All components found to be functioning within manufacturer specifications with no adjustments required.
Completed ERV installation warranty inspection in residential attic space. Verified proper installation of energy recovery ventilator unit and associated ductwork system. Documented existing HVAC infrastructure including large-diameter flexible ducts with metallic insulation, spray foam wall insulation, and reflective foil-faced roof insulation. Confirmed all ductwork connections are secure, properly insulated, and sealed. Inspected electrical connections to junction box and conduit routing. Verified adequate clearances around equipment and ductwork per manufacturer specifications. System operational and performing within normal parameters.
Completed comprehensive seasonal maintenance visit covering both heating and cooling systems under membership agreement. Performed thorough inspection of Carrier furnace system, accessing internal components including blower motors, gas valve assembly, and control board to verify proper operation. Conducted refrigerant system diagnostics using digital manifold gauge, recording temperature and pressure readings to ensure optimal cooling performance. All systems tested and operating within manufacturer specifications.
Performed routine heating maintenance visit as part of family membership agreement. Upon arrival, discovered split Aprilaire humidifier tubing requiring immediate attention. Shut off water supply to the humidifier system to prevent water damage and replaced the damaged tubing with new Aprilaire tubing. Inspected HVAC system components including ductwork, copper refrigerant lines, and electrical connections in the attic space. All connections secured and system restored to proper operation.
Performed second opinion inspection on residential gas furnace following report of failed heat exchanger from another contractor. Conducted thorough visual examination of furnace cabinet, internal components, blower assembly, and heat exchanger for cracks or deterioration. Documented unit condition and findings with photographs for customer records and verified operational status of all accessible components.
Completed HVAC tune-up service on residential heating system. Performed standard maintenance inspection of boiler equipment, expansion tank, circulator pump, and associated plumbing components including copper supply lines, ball valves, and pressure relief systems. All mechanical components photographed and verified operational, with system confirmed functioning within normal parameters.
Completed first-time unit inspection and preventative maintenance tune-up for new condo resident. Performed comprehensive system diagnostics including capacitor testing, which measured 606 microfarads and confirmed proper operation. Verified ecobee smart thermostat functionality and confirmed accurate temperature control at 68°F setpoint.
Completed comprehensive furnace tune-up on 9-year-old heating system, including full inspection of blower motor assembly, control board diagnostics, and electrical connections verification. Replaced air filter and inspected humidifier system with water filter assessment. All internal components, wiring harnesses, and safety controls tested and confirmed operational within manufacturer specifications.
Performed second opinion inspection on Carrier WeatherMaker furnace system following concerns raised by another contractor regarding airflow issues and alleged need for major duct repairs. Conducted comprehensive evaluation of HVAC system including visual inspection of furnace unit, ductwork, Aprilaire humidifier, and air distribution components. Examined all accessible ductwork runs, connections, and plenum assemblies for proper sizing, restrictions, and installation quality. Assessed airflow pathways throughout the mechanical room and verified proper clearances around equipment. Documented equipment specifications and current system configuration with photographic evidence. Found existing duct system and HVAC installation to be adequate with no major repairs required, contrary to previous assessment.
Completed comprehensive tune-up service on residential furnace and air conditioning system, including thorough cleaning and inspection of all components. Performed electrical diagnostics using digital multimeter to verify proper voltage and amperage readings on blower motor assembly and associated wiring connections. Installed customer-provided Healthy Climate HHC16-28 air filtration panel and conducted full system checkout to ensure optimal performance and efficiency.
Replaced defective pressure switch on furnace system. Verified all electrical connections were secure, tested hose connections for proper seal, and confirmed unit operation with successful ignition sequence and normal operating pressures upon completion.
Completed scheduled prepaid heating maintenance visit for residential system. Performed comprehensive inspection of HVAC equipment and water heater, documented equipment conditions with photos showing proper installation and connections in utility area. All components operating within normal parameters with no immediate service needs identified.
Completed full furnace installation in residential basement utility area with all required permits and licensed electrician coordination. New furnace unit installed with proper PVC venting system, ductwork connections, and digital thermostat control, with system pressure testing performed and verified at 1740 reading to ensure proper operation and safety compliance.
