Life is unpredictable at best. That’s why having dependable systems in your home is more than a convenience — it’s a necessity. At Thielmann Heating, Cooling, and Plumbing, we’re dedicated to ensuring your Whitefish Bay home is ready for anything. With over 90 years of expertise, we provide tailored solutions to keep your home comfortable, safe, and efficient through every season. From advanced heating and cooling systems to expert plumbing and air quality services, our team is here to handle it all. Call us at (262) 299-6197 or contact us online today to get more information.
Comprehensive HVAC Services

Whitefish Bay experiences its fair share of extreme weather, from freezing winters to humid summers. That’s why Thielmann’s HVAC services are designed to adapt to your home’s unique needs, keeping you comfortable year-round.
Whitefish Bay Heating Solutions and Repairs
- Furnace Installations: Upgrade to a high-efficiency furnace that delivers consistent warmth and lowers energy costs. Our technicians will guide you through selecting the right model for your home.
- Heat Pump Systems: Stay comfortable year-round with systems that seamlessly switch between heating and cooling modes. Heat pumps are energy-efficient and environmentally friendly.
- Boiler Maintenance and Repairs: Ensure even, reliable heat distribution with our professional boiler services. We specialize in maintaining the longevity of your system.
Trusted Cooling Solutions and Repairs in Whitefish Bay
- Central Air Conditioning Systems: Keep your home cool with energy-efficient AC units designed for consistent performance. Our experts ensure precise installation for optimal operation.
- Ductless Mini-Split Systems: Perfect for older homes or areas without ductwork, these systems provide targeted cooling with flexibility. They’re ideal for smaller spaces or single-room solutions.
- Zoned Temperature Control: Customize the climate in different areas of your home for personalized comfort and energy savings. Zoned systems help reduce energy costs by focusing cooling only where it’s needed.
- AC Maintenance Plans: Regular tune-ups ensure your system operates efficiently and extends its lifespan. Scheduled maintenance prevents costly breakdowns during peak seasons.
Plumbing Services You Can Count On
Whether it’s a minor leak or a major plumbing issue, Thielmann Heating, Cooling, and Plumbing offers reliable solutions to keep your home’s water systems operating at peak performance. Our skilled professionals ensure every job is handled with precision and care, so your plumbing runs smoothly and efficiently.
- Water Heater Expertise: Enjoy reliable hot water with our installation, repair, and maintenance services for tank and tankless water heaters in Whitefish Bay. We’ll ensure your system is running at its peak efficiency and meets your household’s demands.
- Fixture Upgrades: Modernize your home with stylish faucets, sinks, and showerheads. Our team ensures seamless installations to improve functionality and design. Upgraded fixtures also have the added benefit of enhancing water efficiency.
- Sump Pump Installations: Protect your home from flooding with our dependable sump pump solutions. We’ll install and maintain systems to keep your basement dry year-round. Regular maintenance ensures your sump pump is always ready when you need it most.
- Garbage Disposal Services: Keep your kitchen running smoothly with garbage disposal installations and repairs that ensure optimal performance and durability. We address issues like jams, leaks, and worn-out components.
Improve Indoor Air Quality for a Healthier Home

Ensure the air you and your family breathe is clean and safe with Thielmann’s comprehensive indoor air quality services in Whitefish Bay. We provide innovative solutions to create a healthier, more comfortable living environment.
- Air Purifiers: Combat allergens, airborne particles, and pollutants with advanced air purifiers. Our whole-home systems integrate seamlessly with your HVAC setup, delivering fresher air throughout every room.
- Ventilation Enhancements: Say goodbye to stale air and excess humidity with professional ventilation upgrades. Proper airflow is key to maintaining a fresh indoor environment and preventing mold or mildew.
- Humidity Control Systems: Balance humidity levels year-round with our premium humidifiers and dehumidifiers. These systems not only boost comfort but also protect wood furnishings and reduce wear on your home’s structure caused by excessive dryness or moisture.
- UV Light Technology: Take the fight against bacteria, mold, and viruses to the next level with UV light systems integrated into your HVAC unit. Ideal for families with allergies or respiratory concerns, this cutting-edge solution promotes cleaner, healthier air for everyone.
Contact Thielmann Heating, Cooling, and Plumbing Today
Ready to make your home more comfortable, efficient, and safe? Contact the experts at Thielmann Heating, Cooling, and Plumbing to schedule a service or consultation by calling (262) 299-6197. We’re proud to serve Whitefish Bay with expert care and reliable solutions.
Recent Jobs and Reviews in Whitefish Bay, WI
Job Locations and Reviews
Performed comprehensive inspection of multi-zone hydronic heating system. Identified and cleaned corrosion on copper piping and zone control valves. Tested all zone control modules and actuators, confirming proper operation of electrical components and flow control through all circuits.
Successfully installed a new Lennox boiler system with complete integration of the existing water heater setup. Mounted and connected all required components including expansion tank, circulation pump, and proper insulation of copper piping. System was fully tested and is operating at optimal efficiency with all connections secure and properly vented through the exterior wall.
Successfully installed a new Carrier furnace unit in the client's basement utility area. Completed all necessary gas line connections, electrical wiring, and proper ductwork installation. The unit was mounted with appropriate clearance for maintenance access, and the installation area was left clean and organized.
Conducted assessment of aging HVAC system in utility room, examining furnace unit with compromised connections and deteriorating ductwork. Recommended full system replacement with new high-efficiency furnace, properly sized ductwork, and upgraded humidifier to replace existing unit. Documented current installation issues including improper ventilation and potential condensate drainage problems.
Responded to no-heat service call for aging system (10+ years). Inspection revealed faulty integration between copper piping and PVC drain components. Replaced damaged section, cleaned buildup in exhaust/intake assembly, and restored proper heating operation. System now functioning within normal parameters.
Replaced worn pressure regulator valve and installed new shut-off valve on copper supply line. Performed soldering work on connection points and verified proper system pressure after installation. All connections tested for leaks with system operational.
Performed comprehensive tune-up on customer's furnace system, including full inspection of internal components. Opened access panel to examine blower motor assembly, control boards, wiring connections, and draft inducer motor. System was thoroughly cleaned and tested for proper operation with all safety features verified functional.
Assessed and replaced aging HVAC system components in utility area, including installation of new condensate pump with properly insulated copper lines and electrical connections. System replacement included proper mounting of water heater tank with appropriate galvanized steel piping and fittings against concrete block wall.
Completed assessment of an aging outdoor air conditioning condenser unit showing significant weathering and discoloration. Evaluated the installation site, which features limited accessibility due to narrow passageway between stone wall and wooden fence with accumulated debris and vegetation. Recommended full system replacement due to unit's condition and potential airflow restrictions in current location.
Diagnosed and serviced a 10+ year old heating system exhibiting no-heat condition. Identified faulty circulation pumps on the hydronic heating system and replaced both red pumps with new units, ensuring proper electrical connections and testing system functionality. System now operating at optimal performance with restored heat output.
Conducted comprehensive inspection and evaluation of a complex mechanical system featuring interconnected copper and PVC piping network. Identified and documented the control unit with digital display panel, multiple valves including prominent red shutoff valve, and associated electronic components. System appears well-maintained with professional connections and proper mounting against concrete/textured wall.
Performed routine maintenance on customer's heating system. Replaced old air filter with new standard pleated filter to improve air quality and system efficiency. System is now functioning properly with clean filtration.
Installed new furnace system with upgraded heat exchanger components. Completed installation of gas line connections and electrical wiring to manufacturer specifications. System was properly mounted, tested for functionality, and confirmed to be operating within expected parameters.
Performed evaluation of existing Rheem water heater installed in basement utility area. Unit appears to be in good working condition with no visible leaks, damage or corrosion. System has proper copper pipe connections, functioning shut-off valve, and appropriate venting. Water heater is correctly positioned on drain pan for leak protection and properly mounted against concrete block wall.
Conducted inspection of basement area housing existing HVAC infrastructure. Documented exposed ceiling joists, PVC piping configuration, and current water heater installation. Identified storage items requiring relocation prior to equipment replacement. Evaluated utility space layout for optimal new system placement considering existing ductwork and plumbing connections.
Conducted comprehensive assessment of existing HVAC system in basement utility area, documenting aging furnace/air handler unit with galvanized steel exterior alongside water heater. Evaluated current ductwork configuration including black flexible ducting and circular sections for replacement planning. Recommended complete system replacement due to equipment age and efficiency concerns.
Successfully installed a complete HVAC system including a new furnace/air handler unit in the utility area. Properly connected all PVC venting and condensate drainage lines to manufacturer specifications, ensuring system functionality and code compliance. System was tested and is operating efficiently with all components properly secured and labeled.
Completed installation of new residential furnace with proper gas pressure verification (13.3" WC reading confirmed with digital manometer). System includes standard blower assembly and control board connections. Installation included connection to existing ductwork system and coordination with water heater venting for proper clearances and airflow. All electrical components wired according to manufacturer specifications and system tested for normal operation.
Completed inspection of commercial HVAC system with focus on ductwork configuration and outdoor condenser unit. Documented extensive snow accumulation completely covering the outdoor unit positioned against brick wall, potentially compromising proper airflow and operation. Recommended replacement of system to ensure reliable operation and prevent future service disruptions during severe winter conditions.
Performed diagnostic inspection of furnace system, revealing wiring concerns within the blower assembly. Leveled equipment housing to ensure proper operation and prevent vibration issues. All components now functioning within manufacturer specifications.