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 October 2026 and November 2026.
The most recent job was on November 7, 2026.
Thielmann Heating, Cooling & Plumbing has completed 185 jobs in Brookfield, WI in the last 12 months.
Job Locations and Reviews
Installed a new 50-gallon Bradford White gas storage tank water heater, connecting the water supply and discharge piping with a shutoff valve assembly and reconnecting the flue to the draft hood. The unit was inspected for proper venting and fittings, and its serial number and extended warranty information were documented for registration.
Evaluated a 9-10 year old natural draft gas water heater reported to be leaking from the base onto the floor. Inspection found dark moisture staining on the basement slab near the unit, along with corrosion and oxidation on the galvanized flue vent, tarnished copper supply connections with residue at the joints, and a dust-covered tank top. Base leakage at this unit age is consistent with tank failure, so replacement is recommended rather than repair; photos were documented to support the estimate.
Performed an on-site replacement estimate for a Carrier gas furnace with a suspected cracked heat exchanger, inspecting the unit, attached Space-Gard high-efficiency air cleaner, galvanized plenum and ductwork, and PVC condensate/venting piping and floor drain termination. Documented existing equipment and installation conditions to determine furnace replacement scope and evaluate the need for a matching air conditioning system.
Performed a scheduled preventive maintenance tune-up on the gas furnace, inspecting the gas valve assembly, control wiring, and burner compartment components with no signs of corrosion, frost, or physical damage observed. Verified the condensate drain PVC piping, inspected the supply plenum and ductwork connections, and confirmed the foil-taped panel seams and attic-area ductwork were secure. System was left in proper working order and tagged for service records.
Installed a new Carrier furnace and thermostat, connecting the unit to the existing plenum, return filter assembly, and ductwork. Adapted the condensate drain and combustion venting to the existing PVC piping, and completed gas, electrical, and low-voltage connections. Verified proper ignition, airflow, and system operation upon startup.
Conducted an on-site estimate for replacement of the shower trim, including the showerhead and valve cartridge. Inspected the existing chrome showerhead and round valve plate in the tiled shower stall and documented the current fixture configuration with photographs. Observed minor staining along the grout line near the corner shelf, with the remainder of the installation in generally clean condition.
Performed a complete furnace tune-up under the prepaid maintenance plan, including inspection and cleaning of the blower assembly, where the squirrel-cage wheel and housing had accumulated heavy dust and debris buildup. Verified electrical readings with a multimeter to confirm proper component and system operation, and the furnace was left running normally at completion.
Performed a furnace tune-up and inspected the inducer assembly, flame sensor, ignition components, and low-voltage and line-voltage wiring, finding no rust, breakage, or visible damage. Verified electrical operation of the unit using a true-RMS clamp meter at the control board and wiring harness, and addressed the pressure switch installation as scheduled. The furnace was left in proper working order.
Performed a scheduled preventative maintenance tune-up on the gas furnace under the recurring membership agreement. Inspected the furnace cabinet, control components, plenum and supply ductwork, PVC condensate and venting connections, and adjacent water heater flue connection, finding all components secure with no visible damage, corrosion, or leaks. System was left in proper working condition.
Performed a scheduled annual maintenance tune-up on the gas furnace, inspecting the heat exchanger and inducer assembly, gas valve, wiring connections, blower motor, and condensate drain line. Verified PVC intake and exhaust venting and joint integrity, and used a digital combustion/manometer instrument to measure and confirm proper system operation. The unit was found in good working condition with no leaks, corrosion, or damage observed.
Performed a seasonal tune-up on a gas furnace, including removal of the upper access panel to inspect the draft inducer motor, gas valve assembly, burner compartment, and wiring connections. Verified PVC condensate and venting lines were secure, checked for gas leaks and signs of rust or frost, and confirmed proper operation before reinstalling panels. Unit was found in good working condition with only minor dust accumulation on surrounding ductwork.
Performed a furnace tune-up, inspecting the burner assembly, gas valve, pressure switch, condensate drain fitting, and wiring harnesses for proper connections and operation. Noted soot and dust accumulation on the burner assembly and surrounding components, and verified the control board, ductwork connections, and air handler cabinet showed no signs of rust, frost, or damage.
Assessed bathroom vanity with integrated one-piece basin and existing chrome two-handle faucet in preparation for a two-fixture faucet replacement estimate. Inspected faucet, drain, and countertop surfaces, noting no visible damage, leaks, or abnormal conditions, and confirmed the area is accessible for installation of both faucets.
Performed a prepaid annual heating maintenance tune-up on the gas-fired furnace, including inspection of the blower assembly, gas valve, burner components, and electrical wiring connections, and replaced the air filter with a 16x25x4 Honeywell unit. Verified safe, proper operation of the unit, with no visible rust, frost, or damage observed. Noted moisture condensation on the galvanized supply ductwork, which is typical of temperature differential and may be monitored during future visits.
Performed annual furnace tune-up, including inspection of the air handler cabinet and wiring connections and verification of operating pressures with a digital manometer. Measured duct temperature with a digital thermometer and reviewed the installed humidifier control wiring documentation at the plenum. Left all control settings unchanged per customer request.
Installed a complete HVAC system consisting of a new Lennox high-efficiency furnace with PVC intake/exhaust venting and a matching air handler with insulated refrigerant lines, connected to new galvanized supply ductwork and integrated with the existing air cleaner. Mounted a digital control and monitoring unit, completed all electrical connections via licensed electrician, and performed the installation under permit.
Removed the existing shower drain assembly and installed a new drain, ensuring a proper seal and unobstructed flow. Removed the worn showerhead from the chrome shower arm, inspected the threaded connection, and installed a new showerhead with fresh thread seal tape. Tested both repairs under flow and confirmed no leaks.
Performed a replacement estimate for a 20-year-old natural gas Carrier furnace in the basement, which was reported to click and operate but produce an abnormal noise, prompting shutdown. Inspected the unit and surrounding area, documenting the PVC condensate and venting runs, adjacent water heater, and significant dust and debris accumulation, and evaluated replacement options based on the furnace's age and condition.
Performed seasonal tune-up and safety inspection on two gas-fired furnaces (Units A and B), removing access panels to inspect the burner assembly, gas valve, inducer motor, flexible gas connections, and control wiring. Verified proper PVC intake/exhaust and condensate tubing connections, checked ignition and gas valve operation, and inspected the blower compartment and 16x25x1 return air filters. Documented unit conditions, including loose and unsecured low-voltage wiring and a dangling ground wire, for follow-up.
Responded to a furnace leak complaint and inspected the cabinet interior, finding corrosion and rust buildup along the seam of the galvanized base pan, consistent with moisture intrusion from condensate or a related leak source. Documented the affected area, wiring harness, and control component for further evaluation and recommended repair of the leak source and corroded cabinet section.
