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
Conducted comprehensive assessment of existing HVAC system in unfinished basement area to provide replacement estimate. Evaluated current ductwork configuration, mechanical system placement, and structural considerations including exposed ceiling joists and available clearances for new equipment installation. Documented existing conditions including utility placement and access points to determine optimal equipment sizing and positioning for replacement system.
Completed AC system startup and testing on newly installed equipment. Connected refrigerant gauge manifold to service ports and verified proper refrigerant charge levels and system pressures. Measured supply air temperature at register showing 65°F with 6.35 degree temperature split, confirming adequate cooling performance. System operational and performing within manufacturer specifications.
Provided estimate for installation of three new toilets in residential bathrooms. Assessed existing plumbing infrastructure and fixture locations to determine scope of work. Inspected bathroom spaces featuring modern fixtures with white ceramic bowls, wood-grain and dark gray tile flooring, and white wall finishes. Evaluated rough-in measurements, water supply lines, and drain connections to ensure compatibility with new toilet installations. Documented site conditions through photography for accurate proposal preparation.
Completed comprehensive HVAC system evaluation for equipment replacement estimate in residential mechanical room. Assessment included existing water heater installation with aged copper piping connections, PVC vent system, and adjacent air handler unit positioned in confined utility space. Documented current plumbing infrastructure showing mixed materials including copper supply lines with brass fittings, black steel piping with foam insulation, and pressure relief components. Evaluated mechanical room configuration with concrete block wall construction and equipment accessibility for future replacement considerations. Photographed existing system components, pipe routing, and spatial constraints to provide accurate replacement specifications and installation planning recommendations.
Completed installation of Lennox outdoor condensing unit on prepared concrete pad adjacent to residential structure. Unit was properly positioned, leveled, and secured to platform base with all electrical connections, refrigerant lines, and condensate drainage completed per manufacturer specifications and local code requirements.
Completed full HVAC system replacement at residential property. Removed existing outdoor condensing unit and installed new air conditioning system on concrete pad adjacent to exterior wall. Routed refrigerant lines along building exterior using gray insulated copper piping with proper foam insulation, secured electrical disconnect box, and connected all necessary electrical wiring and communication cables. System installation included proper line set configuration, refrigerant charging, and verification of all connections to ensure optimal performance and compliance with manufacturer specifications.
Conducted comprehensive assessment of existing HVAC system in residential basement mechanical room for equipment replacement estimate. Evaluated current gray metal furnace/air handler unit with flexible ductwork connection, documenting equipment condition and configuration. Inspected electrical service panel rated at 100 amps with QO load center, noting existing circuit designations for range, dryer, and basement circuits to determine electrical capacity for new HVAC equipment installation and verify adequate power supply for proposed system upgrade.
Conducted inspection of existing A.O. Smith ProMax water heater installation in basement utility area. Unit appears properly installed with appropriate ventilation piping and copper supply lines connected to household plumbing system. Verified installation meets code requirements with proper clearances and connections to existing infrastructure.
Performed follow-up inspection of exterior plumbing connections where white PVC drainage system meets building's gas service line. Documented significant corrosion and oxidation on metal gas pipes and regulator assembly, with particular deterioration at connection points. Recommended replacement of affected metal components to prevent potential gas leaks while noting the PVC drainage system remains in good working condition.
Completed installation of a new Lennox air conditioning system, including proper mounting of the outdoor condensing unit on a level pad adjacent to the home's exterior. Installed PVC condensate drain line with appropriate U-trap configuration and connected all electrical components via conduit to ensure code compliance. System was pressure tested, evacuated, and charged according to manufacturer specifications.
Conducted assessment of aging outdoor air conditioning condenser unit showing significant rust and weathering. Interior inspection revealed an older furnace/air handler cabinet requiring replacement. Documented condition with photos showing the deteriorated outdoor unit on concrete pad with debris accumulation and the indoor equipment with visible wear. Recommended full system replacement to restore efficient operation and reliability.
Conducted comprehensive inspection of bathroom shower plumbing system, including examination of chrome shower fixture and water supply lines. Evaluated visible piping infrastructure in utility area, noting proper installation of vertical supply lines with appropriate joints. No immediate issues identified with shower grab bar mounting or tile waterproofing. Recommended routine maintenance of pipe joints to prevent future leakage.
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.