When it comes to keeping your home comfortable year-round in Milwaukee, Wisconsin, having reliable heating, air conditioning, and HVAC systems should not be overlooked. If you are looking for quality home services, you are in good company.
Our team of contractors offers industry-leading air conditioning, heating, and HVAC repair services in Milwaukee and will work with you to ensure your home stays cozy all year long. Trust the Thielmann Group to get the job done right. Contact our professionals at (262) 315-3067 to book an appointment and receive assistance with a defective HVAC system.
Air Conditioning Repair Services
Our air conditioning repair services are designed to address any issues such as strange noises and insufficient cooling. If you experience rising energy bills, unusual odors, loud noises, or hot air blowing out of your unit, contact our professionals for support.
Air Conditioner Replacement and Installation Services
A malfunctioning air conditioner is the last thing you want to deal with during a hot and humid summer in Milwaukee.. Our team helps you select the right unit for your home’s size and cooling needs.
Air conditioners are not meant to last forever. You might need an air conditioner replacement service if your unit is experiencing frequent breakdowns, blowing uneven air, or is over 10 years old. If you notice any of these problems, consider contacting us for reliable AC replacement services.
Sometimes, repairs aren’t sufficient. If your air conditioner is beyond repair or you are looking to upgrade to a more energy-efficient model, the Thielmann Group offers replacement and installation services to suit your needs.
Ductless Mini-Split Services
From warm summer days to cold winter nights, there is no temperature a ductless mini-split HVAC system can’t handle. For homes without ductwork or those seeking more flexible cooling options, ductless mini-split systems are a great solution. Our professionals provide installation, repair, and maintenance services for ductless mini-split systems in Milwaukee and Southeastern Wisconsin.
Furnace Repair and Tune-Up Services
Going through a winter in Wisconsin without a functioning furnace is like wearing sandals in the snow—it’s not smart. Luckily, our team offers a variety of HVAC services for local residents in Milwaukee including furnace repair options.
We will make sure your heating system functions properly when you need it most. From minor repairs to major maintenance, there is nothing our technicians can’t handle. Contact us if your furnace is not producing heat, leaking fluids, making strange noises, or short cycling.
Furnace Installation and Replacement Services
If it’s time to replace your old furnace or install a new one, our team offers expert furnace installation services tailored to your heating needs.
Our professionals will guide you through the selection process, ensuring you choose a furnace that meets your efficiency and comfort requirements, and handle the installation with precision and care.
Heat Pump System Installation and Maintenance Services
Did you know a heat pump system heats and cools your home? This heating and cooling versatility makes heat pumps a popular choice for residents in the local Milwaukee area.
Heat pumps offer year-round comfort, consistent temperature control, and improved energy efficiency for homeowners in Southeastern Wisconsin. Plus, they are much better for the environment.
Boiler Installation and Repair Services
As energy costs continue to rise, many homeowners are turning to energy-efficient boilers. Boilers are designed to heat water which is then dispersed as steam through your radiators.
Whether your old system is aging itself out or you need maintenance, our team of technicians have you covered with comprehensive boiler repair services. Get in touch with us if you notice common boiler problems like foul odors, strange noises, a yellow pilot light, or insufficient heat.
Ductwork and Indoor Air Quality Services
Old ductwork can impact your indoor air quality, especially if it develops cracks or gaps. Unfortunately, ductwork problems happen, and when they do, our team is available to provide you with superior air duct repair services to restore air circulation in your house.
Signs like uneven cooling, rising energy bills, loud noises, and the presence of mold all warrant a call to our technicians. Our team offers trustworthy ductwork and HVAC services for homeowners in Milwaukee, Wisconsin and will work with you to restore airflow throughout your system.
Expert Plumbing Services in Milwaukee, WI
Plumbing problems often occur without warning, interrupting your routine and leaving you in a messy situation. When moments like this happen, you need a team of experts who respond fast and fix the problem the right way the first time. Thielmann Heating, Cooling, and Plumbing has a team of Milwaukee plumbers who are trained to handle any problem your home throws your way with professional, quality workmanship. From clogged drains to broken water heaters, our licensed plumbers handle every job with precision and care.
We are able to handle a wide array of plumbing problems in homes both old and new. Our team uses proven repair methods and high-quality parts to ensure every fix lasts. Whether you need a new fixture installed, pipes replaced, or a sump pump serviced, we make the process simple and stress-free. If your water heater struggles to deliver consistent hot water, we can install or repair both standard and tankless units to match your household needs.
Milwaukee homeowners count on us for:
- Water heater repairs, replacements, and maintenance to keep your showers hot and steady.
- Fast drain cleaning and clog removal to keep your plumbing flowing freely.
- Fixture installation and repair for sinks, faucets, and toilets that work the way they should.
- Leak detection and pipe replacement to stop water waste and protect your home.
- Sump pump installation and maintenance to prevent basement flooding.
- Garbage disposal repair and installation to make kitchen cleanup simple.
- Water softener and filtration system installation for cleaner, fresher water in every tap.
We offer regular plumbing inspections to find small leaks or corrosion early before they cause expensive water damage. Keeping your plumbing in good shape helps lower costs, reduce waste, and extend the life of your system. Thielmann Heating, Cooling, and Plumbing proudly serves Milwaukee with honest recommendations, clear pricing, and dependable service that keeps your home running right. Call us today at (262) 315-3067 to book your plumbing appointment.
Enjoy the Local Attractions in Milwaukee and Worry Less About Heating and Air Conditioning Issues
One of the advantages of working with our team of professionals is having more time to explore the local Milwaukee, Wisconsin area. Our team will fix your broken furnace or HVAC system to ensure you are able to enjoy your weekend with friends or family in Milwaukee. The city boasts an array of fun attractions for visitors and residents.
Take a stroll along the Milwaukee Riverwalk, where you can enjoy views of the city skyline. Between the shops and restaurants, you can check out the Milwaukee Art Museum and the famous Harley-Davidson Museum.
For a taste of the rich brewing heritage in Milwaukee, don’t miss a visit to Best Place at the Historic Pabst Brewery, where you can take a guided tour and sample some of Wisconsin’s classic brews. Sports enthusiasts can also catch a game at the iconic Fiserv Forum or check out the American Family Field.
Whatever you choose to do, you can come home to comfort thanks to our team. Our crew will work hard to keep your house safe and comfortable throughout the summer or winter seasons.
Book a Heating or Cooling Appointment With Our Team in Milwaukee
Milwaukee is one of America’s greatest cities, and we are proud to have been servicing its residents for nearly 100 years. Whether you require a brand-new air conditioner or assistance diagnosing a furnace issue, we’re here to assist you.
Call our team of HVAC contractors at (262) 315-3067 to schedule a service today and get peace of mind knowing your heating and air conditioning systems are in good hands.
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Recent Jobs and Reviews in Milwaukee, WI
Milwaukee, WI at a glance
Thielmann Heating, Cooling & Plumbing has completed 20 jobs in Milwaukee, WI in October 2026.
The most recent job was on October 14, 2026.
Thielmann Heating, Cooling & Plumbing has completed 451 jobs in Milwaukee, WI in the last 12 months.
Job Locations and Reviews
Performed a whole-home plumbing inspection, including the basement laundry area, water heater, utility sink, and visible drain, vent, and supply piping. Observed aged galvanized supply piping with surface corrosion and mineral buildup, washing machine supply valves and hoses, and staining on the foundation wall, with no active leaks or significant damage noted. Documented system conditions with photos and recommended monitoring the aging galvanized lines and supply hoses for future replacement.
Installed a new Lennox gas furnace with new PVC intake and exhaust venting, connecting it to the existing supply plenum and ductwork while reusing the existing filter cabinet and return-air box. Mounted and wired an Ecobee Lite smart thermostat, then verified proper blower operation, ignition sequence, and system startup.
Completed on-site evaluation for water heater replacement at owner-occupied residence. Assessed existing white cylindrical water heater unit located in utility area with copper piping connections, documented current installation conditions with photos, and provided comprehensive replacement estimate to customer.
Completed preventive maintenance tune-up on Carrier 69TN6B060C171114 gas furnace, serial number 3422A47546, manufactured August 2022. Performed standard inspection of all furnace components, verified proper operation of heating system, and documented equipment specifications including 60,000 BTU input capacity. Unit operating within manufacturer specifications with no deficiencies noted at time of service.
Replaced the boiler auto fill valve backflow preventer on the copper piping assembly. The new backflow device was installed with brass fittings to maintain proper water pressure regulation and prevent contamination of the potable water supply. System was tested and verified to be operating correctly with no leaks detected.
Completed comprehensive furnace tune-up including thermal imaging inspection of heat exchanger, which showed normal operating conditions with no cracks or failures detected. Inspected and tested ignition system components including flame sensor, confirming proper operation and completing all preventive maintenance checklist items.
Conducted on-site estimate for air handler replacement in hallway closet location. Assessed existing aging HVAC system in basement utility area, documented current equipment configuration including furnace unit, ductwork connections, electrical panels, and associated plumbing lines to determine proper sizing and installation requirements for new air handler placement.
Completed comprehensive furnace and air conditioning tune-up service. Verified system operation with supply air temperature reading of 55.2°F at the register, confirming adequate cooling performance. Inspected and tested the dual-run capacitor, which showed signs of age and surface corrosion but remained within operational parameters.
Completed seasonal tune-up maintenance on Carrier furnace system and inspected Air Bear media air filter, which showed signs of contamination and requires replacement. Performed standard system diagnostics and verified proper operation of all HVAC equipment in basement mechanical room including furnace, ductwork connections, and auxiliary environmental control units.
Completed comprehensive tune-up and safety inspection on HVAC system. Accessed electrical control compartment, inspected all wiring connections and components including blower motor assembly, verified proper operation of all electrical controls, and documented system condition with photos. All components found to be functioning within normal parameters.
Completed air handler replacement estimate for condo unit located in shared utility closet housing HVAC equipment for two units. Assessed existing air handler installation in confined mechanical space with exposed framing, documented equipment specifications and necessary accessories including hose kit, drain line requirements, and filter modifications for replacement unit configuration.
Conducted on-site assessment of existing air handler unit located in hallway maintenance closet for replacement estimate. Documented current HVAC system configuration including metal ductwork assembly, existing air handler cabinet, and associated mechanical connections in basement utility space. Photographed equipment specifications, installation location, and surrounding infrastructure to prepare comprehensive replacement estimate for customer review via email.
Conducted on-site evaluation for air handler replacement in residential utility room. Located existing cream-colored air handler unit in mechanical space alongside water heater, assessed current installation configuration including electrical connections, ductwork interfaces, and clearance requirements. Documented equipment specifications and spatial constraints for replacement estimate preparation.
Completed full Magicpak HVAC system installation in basement utility area. Unit was transported via stairs using dolly due to non-operational elevator, requiring additional crew member for safe handling. Installed vertical furnace unit with connecting galvanized metal ductwork on both sides, routed white PVC condensate drainage lines along floor, and connected flexible gas line with proper wall mounting. Mounted thermostat control with cooling, heating, and fan operation settings, and left manufacturer documentation and components with installation. All equipment tested and operational upon completion.
Completed furnace replacement estimate for 25-year-old oil furnace conversion to natural gas heating system. Assessed existing oil furnace unit, evaluated basement mechanical room layout, ductwork configuration, and electrical panel capacity. Documented requirement for natural gas line installation from street to residence as no existing gas service is currently available at the property.
Completed scheduled maintenance tune-up on MagicPak HVAC unit located on third floor. Performed comprehensive system inspection including heat exchanger, evaporator coil, refrigerant lines, electrical connections, and control components. All aluminum fins, copper tubing, and insulated ductwork were examined and found in proper working condition with no issues identified.
Conducted on-site assessment of existing air handler unit located in hallway maintenance closet and provided detailed replacement estimate. Documented current equipment condition, including dusty olive-green metal furnace unit with connected black flexible ductwork, electrical panel configuration, and existing ventilation system layout to determine proper replacement specifications and installation requirements.
Completed furnace replacement estimate for natural gas unit located in basement. System assessment revealed aging equipment with deteriorated ductwork showing significant surface wear, peeling insulation, and exposed metal sections requiring attention. Documented existing mechanical installation including water heater, ventilation components, and associated plumbing connections for comprehensive replacement planning.
Conducted on-site assessment for air handler replacement located in hallway maintenance closet. Evaluated existing HVAC system configuration, documented current equipment conditions including ductwork connections and mechanical infrastructure, and prepared comprehensive replacement estimate for customer consideration.
Conducted on-site assessment of existing HVAC air handler located in condo unit 22D closet for replacement estimate. Documented current equipment configuration including furnace/air handler unit, associated ductwork, water heater, and mechanical connections. Evaluated spatial constraints within the narrow utility closet, noting concrete block construction, existing copper and PVC piping infrastructure, electrical conduit routing, and duct connections to prepare comprehensive replacement specifications for proper equipment sizing and installation planning.
