At Thielmann Heating, Cooling, and Plumbing, we understand that your home is more than just a building; it’s where comfort, safety, and peace of mind come together. For over 90 years, we’ve proudly provided homeowners in Southeastern Wisconsin with reliable and innovative solutions tailored to their unique needs. From advanced heating systems to modern plumbing upgrades, we’re here to ensure your Franklin home runs efficiently all year long. Call us today at (262) 299-6197 and see why so many have turned to Thielmann’s home service solutions.
Valuable Franklin Heating Solutions

Winters in Franklin are no match for our advanced heating services. Whether you need a new installation or expert maintenance, we have you covered with a wide range of reliable options:
- Heat Pumps: Embrace year-round comfort with versatile heat pump systems that provide both heating and cooling. These systems are an excellent choice for Franklin homeowners looking to reduce energy costs while maintaining a consistent indoor climate. Whether you need a new installation or a repair, our team ensures optimal performance tailored to your home’s needs.
- Boiler Services: Boilers are a popular choice for homes in Franklin due to their durability and efficiency. We offer comprehensive boiler services, including installations, repairs, and maintenance, ensuring your system operates safely and effectively for years to come.
- Furnace Maintenance and Replacement: Regular furnace maintenance is key to preventing breakdowns and extending the life of your system. If it’s time for an upgrade, our high-efficiency furnaces deliver powerful heating while reducing energy costs.
- Emergency Heating Repairs: A sudden heating issue can disrupt your life, especially during a Wisconsin winter. Our team is available to provide fast, effective repairs, restoring warmth to your home without delay.
Plumbing Services for Every Need
A dependable plumbing system is essential for a smooth-running household. At Thielmann Heating, Cooling, and Plumbing, we offer a comprehensive range of plumbing services to keep everything flowing smoothly and efficiently:
- Tankless Water Heaters: Experience the luxury of endless hot water while saving energy with a tankless water heater. These compact and efficient systems are perfect for homes aiming to maximize utility and performance without taking up too much space.
- Water Line Services: Leaks or aging water lines can cause significant issues over time. Using advanced detection tools, we locate and address problems quickly, ensuring uninterrupted water flow and preventing costly damage.
- Modern Fixture Installations: Upgrade your bathroom or kitchen with state-of-the-art fixtures, including energy-efficient faucets, elegant sinks, and high-performance showerheads. Our installations are designed to enhance both style and functionality.
- Sump Pump Solutions: Safeguard your basement from potential flooding with reliable sump pump services. From installations to routine maintenance, we ensure your pump is prepared to handle heavy rains and protect your home.
Efficient Cooling Services in Franklin

As the temperatures rise, having a dependable cooling system gives you the peace of mind you deserve. At Thielmann, we offer a comprehensive range of cooling solutions in Franklin designed to keep your home cool, comfortable, and efficient:
- Central Air Conditioning: Upgrade to high-performance AC systems that deliver consistent cooling while lowering energy usage. Our technicians carefully assess your home’s size and layout to recommend the perfect system for your needs.
- Zoned Cooling Solutions: Customize the temperature in different areas of your home with zoned cooling systems. These solutions improve comfort and energy efficiency by allowing you to cool specific rooms rather than the entire house.
- Seasonal Maintenance: Regular maintenance is crucial for keeping your AC system running smoothly. Our tune-ups include inspections, cleaning, and adjustments to identify and address potential issues before they escalate.
- Smart Thermostat Installation: Gain better control over your cooling system with smart thermostats. These devices allow you to adjust temperatures remotely, create schedules, and monitor energy usage, ensuring optimal comfort and efficiency.
Franklin Air Quality Specialists
Breathe easier with Thielmann’s advanced indoor air quality solutions. We provide tailored services to ensure the air inside your home is clean, refreshing, and safe for your family:
- Air Filtration Systems: Remove allergens, dust, and airborne pollutants with high-performance air filters. These systems are particularly beneficial for households with pets or allergy sufferers.
- Dehumidifiers and Humidifiers: Achieve the perfect balance of humidity in your home. Our dehumidifiers prevent mold and mildew during humid months, while our humidifiers combat dry air in winter, improving comfort and health.
- Ventilation Upgrades: Proper ventilation is key to maintaining fresh air circulation throughout your home. We provide advanced solutions that reduce indoor pollutants and enhance overall air quality.
- UV Light Purification: Eliminate harmful bacteria and viruses with UV purification systems. These devices work seamlessly with your HVAC system to create a safer living environment for your family.
Schedule Your Service in Franklin Today
Looking to improve your home’s comfort, energy efficiency, and safety? Contact Thielmann Heating, Cooling, and Plumbing today by calling (262) 299-6197 to arrange a service or consultation. Our experienced team is honored to provide Franklin homeowners with personalized solutions that exceed expectations.
Recent Jobs and Reviews in Franklin, WI
Job Locations and Reviews
# HVAC Service Call - No Cooling Issue Responded to no cooling complaint on aging Carrier air handler unit located in interior mechanical closet. Upon arrival, performed comprehensive system diagnostics to identify root cause of cooling failure. Conducted visual inspection of equipment revealing unit exceeding 10-year service life with signs of normal wear and accumulated debris around base and floor area. Inspected condensate drainage system including drain pan and associated plumbing connections. Evaluated black flexible supply and return connections for proper sealing and airflow. Verified manufacturer specifications on data plate and assessed overall unit condition relative to age and operating environment. Performed electrical testing of control circuits, capacitors, and safety switches. Checked refrigerant pressures and temperatures across coil to determine system performance. Inspected blower assembly operation and verified proper airflow through evaporator coil. Evaluated t
Responded to no cooling call on system over 10 years old. Upon arrival, performed diagnostic evaluation of air conditioning equipment and controls, including inspection of Braeburn digital thermostat and Aprilaire humidistat. Documented equipment conditions and thermostat settings for customer review and repair recommendations.
Completed annual cooling system maintenance on Lennox air conditioning unit as part of prepaid membership visit. Performed comprehensive tune-up including system inspection, refrigerant level check, electrical connections verification, and condenser coil cleaning. Addressed customer concern regarding whistling noise originating from furnace; inspected blower assembly and identified minor airflow restriction. Evaluated condensate drain lines per customer request and confirmed black discoloration present, indicating mold growth and deterioration. Recommended drain line replacement to prevent future clogs and ensure proper condensation removal. Verified outdoor unit operation, confirmed adequate airflow through condenser, and tested system cycling. Unit operating within manufacturer specifications at time of service completion.
Completed comprehensive AC and furnace tune-up maintenance on residential HVAC system. Performed thorough inspection of furnace interior components including blower motor assembly, capacitors, control board, electrical connections, and condensate drain lines, verifying all components operating within normal parameters. System tested and confirmed functioning properly with no deficiencies noted.
Completed full HVAC system installation including new furnace and air conditioning equipment. Installed gray cabinet furnace with PVC venting system, configured condensate drain lines with proper traps and connections, and mounted AprilAire humidifier unit to ductwork for whole-home humidity control. Connected all electrical components, ran metallic flex ductwork to distribution system, and verified proper airflow through supply and return paths. System tested and operational upon completion.
Conducted comprehensive assessment of aging residential HVAC system experiencing multiple operational issues. Evaluated existing furnace and air conditioning equipment located in basement utility area, documenting current system configuration including electrical service panel connections, ductwork layout, and equipment placement alongside water heater. Provided detailed replacement estimate for complete HVAC system upgrade to address reliability concerns and equipment age-related deterioration.
Completed routine cooling system maintenance as part of membership agreement. Performed comprehensive A/C tune-up including pressure diagnostics using manifold gauge set to verify refrigerant charge and system performance on outdoor condenser unit. Inspected indoor air handler components, noting dual-run capacitor rated at 454-517 MFD/370 VAC in good operating condition. Cleaned accumulated debris and organic matter from interior surfaces of air handler cabinet to ensure proper airflow and system efficiency. All system parameters found within normal operating specifications upon completion of preventive maintenance visit.
Completed routine cooling season tune-up and system inspection as part of recurring family membership service. Performed comprehensive diagnostics using digital testing equipment and manifold gauges to verify refrigerant pressures, temperatures, and overall system performance, recording 76.6°F at outdoor unit. Inspected indoor air handler unit in basement, checked all connections, verified proper insulation on refrigerant lines, and confirmed equipment labels and safety information were intact and legible. All systems operating within normal parameters with no issues identified.
Completed preventive maintenance tune-up on two HVAC systems. Inspected electrical components, contactors, and capacitors on outdoor condensing unit; verified proper wiring connections and cleaned debris from unit base. Performed system inspection on Lennox furnace in basement, checked all safety labels and operational specifications, and confirmed proper clearances around equipment.
Completed comprehensive furnace and air conditioning tune-up service on residential HVAC system. Performed thorough inspection of both heating and cooling components, including blower motor assembly, refrigerant lines, and copper tubing connections. All mechanical components were evaluated for proper operation and system efficiency was verified within manufacturer specifications.
Completed comprehensive tune-up on furnace and air conditioning system. During inspection, discovered minor water accumulation on furnace unit and documented issue with photographs for customer records. Performed standard maintenance procedures including refrigerant pressure testing using manifold gauges on outdoor condensing unit, verified all mechanical connections and gas valve components, and inspected PVC condensate drain line and mounting hardware. All systems operational following service.
Responded to service call for deteriorated air return vent. Upon inspection, found existing air return vent completely disintegrated and non-functional. Removed damaged vent assembly and installed new return air grille with proper mounting hardware and gasket seal to ensure adequate airflow and system performance. Verified secure installation and proper sealing to prevent air leakage.
Completed preventative maintenance tune-up on residential air conditioning system. Performed comprehensive inspection of air handler unit, verified proper operation of all mechanical components, checked refrigerant lines and condensate drain system for proper function and secure mounting. All equipment found operating within normal parameters with no issues identified.
Completed comprehensive tune-up service on both furnace and air conditioning systems as requested. Performed standard maintenance procedures including inspection of outdoor condenser unit, verification of refrigerant pressures using manifold gauges, and confirmed proper thermostat operation displaying 68° room temperature. All systems tested and operating within normal parameters.
Conducted comprehensive HVAC system evaluation for non-functional air conditioning unit and existing furnace installation. Assessed current equipment condition, including dark gray furnace unit with associated PVC venting and ductwork configuration in unfinished basement mechanical room, as well as attic-mounted duct system components. Documented existing system specifications, reviewed equipment age and efficiency ratings, and provided replacement estimate options for complete HVAC system upgrade to restore cooling functionality and optimize heating performance.
Completed warranty replacement of secondary heat exchanger on residential HVAC unit. Disassembled existing unit, removed failed heat exchanger showing significant corrosion and buildup, and installed new replacement component. Reassembled unit, tested all connections and controls, and verified proper system operation before completing service call.
Completed full HVAC system installation including new Lennox air conditioning condenser unit and evaporator coil. Equipment was picked up from Lennox supply house and installed on concrete pad with proper leveling. Connected refrigerant lines, completed electrical wiring, performed system startup, and charged unit to manufacturer specifications using manifold gauges. System tested and operating within normal parameters.
Responded to no cooling complaint on residential HVAC system over 10 years old. Upon inspection, identified refrigerant leak at brass flare fitting connection, evidenced by visible corrosion and wear on component. Replaced defective fitting, pressure tested system, recharged refrigerant to manufacturer specifications, and verified proper cooling operation before departure.
Responded to emergency service call for newly installed AC system experiencing issues. Evaluated electrical panel and ductwork installation in basement area. Refunded and replaced defective capacitor on new HVAC equipment to restore proper system operation.
Responded to no cooling call with unit running continuously and indoor temperature at 76-78°F. Performed diagnostic testing using digital multimeter on HVAC system components and measured supply air temperature at 58°F at the register, indicating insufficient cooling capacity. Inspected electrical connections, capacitor, and compressor wiring during troubleshooting process to identify cause of inadequate system performance.