Thielmann Heating, Cooling, & Plumbing has serviced HVAC systems for Wisconsin since 1929. Our company is built on the foundation of ensuring the comfort of our customers. Our team of experts provides comprehensive and efficient services for your furnace, air conditioner and heat pumps. In addition to heating and cooling services, we repair, maintain, install and replace plumbing components and systems. We’re your go-to home and commercial utility service provider!
Give us a call at (262) 299-6197 or request a free system estimate online.
Furnace Repairs, Cleaning, Replacement and Installation Services
Is your furnace making loud noises when you turn it on? Is it not cooling your house enough on a hot summer day? Needing furnace repairs is the last thing you need in the middle of winter. These are signs your furnace needs repair:
- Lack of heat
- On and off cycling
- Strange noises
- Fluid leaking
Stay ahead of the cold with our furnace repair and cleaning services. Our technicians inspect your unit and address any issues, all on the same day! With years of experience, there are no furnace issues too complex for us to handle.
Furnaces we install
There comes a time when your furnace will reach the end of its life. If your unit is struggling to keep your home warm, it is time for a replacement! At Thielmann Heating, Cooling, & Plumbing, we specialize in installing the best furnaces for homes in Mequon, WI. We install the following furnaces:
- Gas – Popular choice for energy efficiency and cost-effectiveness.
- Oil – Effective alternative if you don’t have natural gas. More frequent maintenance is balanced by stronger heat output.
- Electric – Simple and efficient, providing a longer life span without as much maintenance. Simplicity comes with higher operating costs.
Heat Pump System Repair, Installation and replacement Services
Heat pumps are great alternatives to furnaces. They provide both heating and cooling capabilities with more precise control. Heat pumps act as a flexible alternative to furnaces. The units allow for dual systems for consistent heating and cooling. They offer all-year comfort while being energy-efficient. Over time, however, your system may show some signs warranting a repair:
- System limited to only heating or cooling
- Heating or cooling slowly
- Sparking or smoking from the unit
While common, these issues leave your heat pump needing to be more efficient. Our experts are available for same-day appointments. We offer comprehensive repairs for all heat pump problems.
When is it time to replace your pump?
If you currently own a heat pump, look for signs that it needs a replacement. The signs include the following:
- Frequent repairs
- Energy bill increases
- Inconsistency in the heating and cooling
Our heat pump installations are quick and efficient, meaning you can get back to home comfort faster.
Contact our team to schedule heat pump services in Mequon by contacting us online or calling (262) 299-6197.
Air Conditioner Repair, Maintenance, Installation and Replacement Services
When the hotter temperatures arrive in Mequon, you need a reliable AC unit. A dependable AC unit provides cool, soothing air when the summer comes. Our technicians at Thielmann Heating, Cooling, & Plumbing are dedicated to ensuring the comfort of your home. Unsure of your AC’s condition? Here are some common signs that your AC system requires some AC repairs:
- Unresponsive thermostats
- Unit is 10+ years old
- Loud or strange noises
- Blowing hot air
Our technicians are available for emergency HVAC service. We will remedy any system issues and secure your comfort. We also provide air conditioner installations and replacements if your system needs more than regular AC repairs or maintenance. If you experience constant AC breakdowns, inconsistent cooling or have a system older than 10 years, you should consider a replacement.
Air Purification & Duct Cleaning Services
Quality heating and cooling are essential for your comfort, as is the air you breathe. Poor air quality can result in frequent allergy symptoms, lingering smells, or even dust accumulation. Experiencing these? You may need a professional air purification service.
Our home purifiers eliminate bacteria that stick to the air, creating a more comfortable and healthier home. The air filters in our purifiers clean your air for six to 12 months before they require a replacement. At Thielmann Heating, Cooling, & Plumbing, we extend our services to clearing your air ducts. Your ducts accumulate debris through continual use. Clearing out this buildup makes the air healthier and your HVAC more efficient. Let us ensure your air is of the highest quality for comfortable, healthier living!
Commercial and residential plumbing services we offer
We’ve designed a range of plumbing solutions to help address diverse challenges. Our qualified plumbing technicians can complete the following:
- Repairs: We can fix faulty plumbing, including components like pipes, fixtures, toilets, water heaters and sump pumps.
- Installations and replacements: Our dependable team can set up new plumbing networks or introduce new components to your existing infrastructure. We install sump pumps, water heaters, fixtures and other components. You can rely on us for installations at your new construction site or replacements of your current plumbing solutions. We can even help you with your kitchen or bath remodel plumbing!
- Maintenance: Proper plumbing maintenance is essential to keeping it operating at its best. Consistent preventive maintenance can help prevent major system issues, reduce your spending on repairs or replacements and keep your property running smoothly. Schedule regular maintenance checks with us, and we’ll care for your plumbing network.
- Water conditioning: For clean, quality and safe water, we offer water conditioning, such as softening, filtration and iron curtain installations and maintenance.
Trusted Mequon, WI Plumbing Professionals
Wisconsin homeowners have trusted Thielmann Heating, Cooling, and Plumbing since 1929 to deliver exceptional, quality plumbing services. We understand how fast a plumbing problem can disrupt your entire routine and how quickly a small problem can turn into a major repair. That’s why we pride ourselves on offering fast, reliable plumbing services in Mequon, WI. Whether it’s a broken pipe, garbage disposal service, on installing a new water heater, we have you covered.
With over 95 years of experience, Thielmann has earned a reputation for honest service and quality workmanship across southeastern Wisconsin. We take the time to explain every repair and give you clear, upfront pricing before work begins. You’ll always know what to expect and why the job matters for your home’s safety and comfort.
Our Mequon plumbing services cover every part of your home’s system:
- Tank and Tankless Water Heater Repair and Replacement
- Drain Clearing and Hydro Jetting
- Water Line Leak Detection and Full Replacement
- Toilet, Faucet, and Shower Fixture Repairs
- Garbage Disposal Troubleshooting and New Installations
- Sump Pump Testing and Backup Unit Setup
- Kitchen and Bathroom Plumbing Upgrades
- Whole-Home Water Filtration and Conditioning Systems
If you hear running water, see signs of leaks, or experience poor water pressure, don’t wait. Call Thielmann Heating, Cooling, and Plumbing at (262) 299-6197 for fast, professional plumbing service in Mequon.
We also complete Commercial HVAC Repair & Maintenance Services
Thielmann Heating, Cooling, & Plumbing’s top-quality HVAC services are not restricted to homeowners. We understand that business owners work hard to provide comfort for their customers. Rely on our experts to provide the highest quality inspections and repairs so your business continues to thrive all year.
Our team is ready to handle any maintenance or repairs for your commercial heating or cooling units. Just need a quick repair? Our team is ready for same-day maintenance work. Let us keep your business at the perfect temperature.
Request a free commercial system estimate or schedule an appointment online today!
Relax in Mequon Knowing Your HVAC System is Running Smoothly
Mequon is a vibrant Wisconsin town with plenty to do and explore! Don’t let your HVAC worries prevent you from a great day in the town. Enjoy peace of mind and explore Mequon’s variety of museums. Learn motorcycle history at the Harley Davidson Museum, find striking pieces of art at the Milwaukee Art Museum, and unleash your wild side at the Milwaukee County Zoo.
Mequon’s attractions cater to everyone, but you can’t enjoy them with HVAC worries on your mind. At the Thielmann Group, we want customers to explore what makes this town great. Take in the sights of the Milwaukee River Walk and come back to a comfortably cooled home from a serviced AC unit. Leave the HVAC problems to us!
Ensure Year-Round Comfort in Mequon with Our Plumbing, Heating & Cooling Services
Thielmann Heating, Cooling, & Plumbing’s reliable services enhance households and businesses for peak comfort. We can transform your home into a cozy shelter from Mequon’s extreme weather. Cool your spaces in the town’s 82-degree summers and keep them warm in the chilly winters! You can rely on us for comprehensive and precise heating and cooling system support and extensive, stress-free plumbing. Let our expert team maintain that comfort for you! Request a free system estimate, schedule an appointment online or call us at (262) 384-6407.
Read Reviews From Our Customers
Recent Jobs and Reviews in Mequon, WI
Job Locations and Reviews
Responded to service call for unstable toilet fixture. Upon inspection, diagnosed toilet instability issue and assessed mounting conditions at floor flange connection. Documented existing bathroom conditions and fixture positioning for service records.
# HVAC Installation Summary Completed installation of dual HVAC system including two outdoor condensing units and two Lennox furnace units with matching evaporator coils. # Work Performed **Outdoor Installation:** Installed two condensing units on concrete paver patio area with proper vibration isolation pads. Mounted electrical disconnect boxes on exterior wall with appropriate conduit routing. Established refrigerant line sets connecting outdoor units to indoor coil assemblies. Completed electrical connections from disconnect boxes to condensing units per manufacturer specifications and local electrical code requirements. **Indoor Installation:** Installed two Lennox furnace units in basement mechanical room on concrete floor. Positioned units side-by-side for efficient space utilization and serviceability. Integrated matching evaporator coils with furnace cabinets. Connected supply and return air ductwork to units with proper sealing at all joints. Installed white PVC condensate
Completed prepaid preventative maintenance cooling visit on Carrier outdoor condensing unit. Performed comprehensive system inspection including visual examination of control board, capacitor, compressor connections, and electrical wiring. All components found in proper working condition with secure wire connections and intact routing. Unit operating within normal parameters.
Completed scheduled cooling system maintenance visit on Lennox outdoor condensing unit as part of prepaid membership program. Performed comprehensive inspection of unit components, verified proper operation of compressor and condenser fan motor, and documented system condition with photographic evidence showing unit installed on composite pad with appropriate electrical disconnects and clearances maintained.
Conducted on-site evaluation of existing sump pump system for replacement estimate. Inspected current blue submersible sump pump with black motor assembly installed in residential sump basin, noting operational condition and discharge piping configuration. Assessed white PVC discharge line routing and white corrugated drainage inlet pipe. Evaluated basin condition, observing mineral deposits and water staining on concrete walls indicating regular water accumulation. Provided comprehensive estimate for complete sump pump replacement including new primary pump unit and battery backup system installation to ensure continuous protection against basement flooding during power outages.
Conducted comprehensive site assessment of existing sump pump system located in basement utility area. Evaluated current pump installation, discharge piping configuration, and basin condition to prepare estimate for complete sump pump replacement and battery backup system installation. Documented deteriorated basin conditions, corroded mechanical components, and aged discharge piping showing mineral buildup and significant wear. Identified need for new primary sump pump unit with enhanced capacity, installation of battery backup system to ensure continuous operation during power outages, and replacement of compromised mounting hardware and discharge assembly.
Completed routine cooling maintenance visit for multi-zone HVAC system including Lennox furnace and zoned distribution equipment. Performed standard tune-up procedures, verified system operation with temperature readings at 72.5°F, and inspected all zone controls, PVC ventilation piping, and electrical connections. All equipment operating within normal parameters.
Completed HVAC system tune-up and performance verification. Measured supply air temperature at 48.7°F and return air temperature at 29.5°F, confirming proper system operation and adequate temperature differential. Inspected damper control mechanism, verified proper operation of open/closed positions, and confirmed electrical connections were secure with wire nuts properly installed.
Completed installation of Lennox UV light system as part of comprehensive HVAC indoor air quality upgrade. Unit was properly mounted, wired with appropriate electrical connections including transformer hookup, and integrated into existing system. System startup procedures were performed and unit tested for proper operation to ensure optimal air purification performance.
Completed full HVAC system installation including new outdoor condensing unit and associated equipment. Unit was properly positioned on concrete pad with adequate clearance for airflow and service access. All refrigerant lines, electrical connections, and drainage systems were installed per manufacturer specifications. System was tested, charged, and verified operational with proper airflow and temperature differentials across both heating and cooling modes.
Completed comprehensive tune-up service on gas furnace and air conditioning system. Performed electrical diagnostics using digital multimeter, measuring voltage and amperage readings on HVAC control board and system components to verify proper operation. All systems tested and found operating within manufacturer specifications.
Completed comprehensive HVAC system evaluation for equipment replacement estimate. Assessed existing Carrier furnace unit in basement utility area and outdoor air conditioning condenser unit, documenting current equipment specifications, installation conditions, and system configuration including copper refrigerant lines, PVC condensate drainage, and venting components to provide accurate replacement recommendations and sizing requirements.
Responded to no cooling call for ductless mini-split system in commercial garage space. Upon arrival, performed diagnostic inspection of wall-mounted indoor unit and verified system operation, finding unit functioning properly with no cooling deficiencies detected at time of service.
Completed comprehensive HVAC system estimate for equipment replacement in residential property. Assessed existing heating and cooling unit located in basement utility area, including evaluation of current PVC condensate drainage system, ductwork configuration, and electrical connections. Documented exterior HVAC pad location and clearance requirements along decorative stone wall for potential outdoor condenser unit placement.
Performed comprehensive HVAC tune-up on residential furnace system. Conducted thorough inspection of internal components including blower motor, heat exchanger, ignition system, and control board. Removed front access panels to access both upper and lower compartments, tested electrical connections and circuitry using multimeter to verify proper voltage and amperage readings. Inspected PVC intake and exhaust vent pipes for proper installation and clearance. Examined ductwork connections and insulation throughout basement area, verified all mechanical linkages and wiring harnesses were secure and functioning correctly. All systems tested and operating within manufacturer specifications upon completion.
Completed inspection and documentation of exposed plumbing system featuring copper supply lines and PVC drain lines mounted on basement wall. Verified operation of brass shut-off valves with cross-handle configuration and confirmed proper identification tagging of water supply lines per code requirements.
Completed comprehensive HVAC system replacement in residential basement mechanical room, installing new air handler unit with associated ductwork, drainage piping, and electrical connections. Configured galvanized steel ductwork transitions in attic space with proper sealing and integrated refrigerant line routing to ensure optimal airflow distribution throughout the home. All components installed per manufacturer specifications with condensate drainage system properly positioned and secured for reliable long-term operation.
Completed installation of ductless mini-split air conditioning system in residential living space. Mounted indoor evaporator unit on interior wall at optimal height for air distribution, installed refrigerant line set through wall penetration, and positioned outdoor condenser unit with proper clearances. System was pressure tested, evacuated, charged with refrigerant, and successfully commissioned with all operational parameters verified within manufacturer specifications.
Completed prepaid HVAC maintenance visit on residential gas furnace system. Performed comprehensive inspection of furnace unit, blower assembly, and venting components including PVC condensate drainage lines and exhaust system. Verified proper operation of all mechanical and electrical components, checked wire connections, and confirmed system functionality. All equipment found operating within normal parameters with no immediate service needs identified.
Performed comprehensive evaluation and measurements of existing HVAC system for complete replacement estimate. Assessed current air handler unit dimensions and clearances in mechanical space to determine equipment specifications for new installation. Documented existing Carrier Infinity Touch thermostat system currently displaying operational parameters, which will be evaluated for compatibility with proposed replacement equipment or potential upgrade requirements during system changeout.
