At The Thielmann Group, our team has been offering reliable heating, air conditioning, and HVAC repair services in Oak Creek, Wisconsin and other areas for over 90 years. Our comprehensive residential and commercial HVAC service ensures that your Oak Creek property is always at the ideal temperature.
Our NATE-certified technicians have the skills and experience to handle any heating or cooling issue and provide service for all brands of equipment, and with our 24/7 emergency services, we are here for you when you need us most.
For superior HVAC service in Oak Creek, trust the team at The Thielmann Group by calling (262) 299-6197 today or contact us online!
Top-Rated AC Services
Our licensed and insured technicians are proud to provide you with outstanding air conditioning (AC) services in Oak Creek, Wisconsin. With our wide range of services, we will work to ensure that you have the cooling power, including:
- AC installation and replacement
- AC repair
- AC maintenance
Ductless Mini-Splits
In addition to forced air, our team provides service for ductless mini-splits. With these unique systems, you’ll get great benefits, including increased energy efficiency, decreased noise, and easy maintenance, all without relying on ductwork in your home.
Heat Pumps
To streamline your HVAC, consider a heat pump. These systems work to both heat and cool your home and can provide exceptional performance with maximum energy efficiency.
Reliable Heating Services
Our comprehensive HVAC and heating services include installation, replacement, repair, and maintenance of a wide variety of popular heating systems, including:
- Gas and oil furnaces: Furnaces are always a popular choice for heating and offer great energy efficiency.
- Boilers: Boilers require less fuel for heating and are cost-efficient while providing quiet and consistent heat.
- Heat pumps: A heat pump does double duty to heat and cool your home and is a highly energy-efficient option.
When you need unmatched heating service, trust the team at The Thielmann Group. Call us today at (262) 299-6197 to schedule services!
Ductwork Services in Oak Creek
Your ducts are responsible for moving heated and cool air throughout your home and are critical to your home’s comfort system.
We offer a variety of duct services to ensure that your home is at the perfect temperature, including:
- Duct cleaning
- Duct installation & replacement
- Duct repairs
- Duct maintenance
Schedule your ductwork service today by calling (262) 299-6197 or contacting us online!
Indoor Air Quality Services
At The Thielmann Group, we understand the importance of high-quality indoor air. With our indoor air quality services, we’ll help ensure that the air you and your family breathe daily is clean and safe.
We offer a variety of systems, including:
- Air purifiers: These systems clean your air using a high-efficiency filter on the air your HVAC system is pushing into your ducts.
- Whole-house humidifiers & dehumidifiers: Moisture balance is critical for fresh air in your home, and with a whole-home humidifier or dehumidifier, you can prevent issues like mold, mildew, dry skin, and snoring.
Don’t delay! Get clean air today by calling (262) 299-6197 or contacting us online today!
Packaged Units Services
Packaged units are all-in-one systems that provide heating and cooling from a single unit. With these systems, you’ll get maximum efficiency with a simple installation and quiet performance. These units are often an ideal choice for smaller homes.
Our services include:
- Packaged unit installation & replacement
- Packaged unit repairs
- Packaged unit maintenance
Interested in a packaged system? Call our team at (262) 299-6197 or contact us online to see if this option is right for you!
Choose The Thielmann Group in Oak Creek
For unmatched customer service, trust the team at The Thielmann Group. We’re proud to offer residents of Oak Creek superior service from our background-checked, licensed, and insured technicians, and with our upfront pricing, you’ll never get a surprise when it’s time for the bill.
We offer free estimates on replacements and service all brands, and with our available financing options, you can trust that you’re in excellent hands with The Thielmann Group.
Schedule your HVAC service with one of our experts today by calling (262) 299-6197 or contacting us online today!
Read Reviews by Our Customers
Recent Jobs and Reviews in Oak Creek, WI
Job Locations and Reviews
Responded to no heat complaint on 10+ year old gas furnace. Upon inspection, found failed ignition sequence due to dirty flame sensor. Cleaned flame sensor, inspected burners and venting system, and performed system test. Unit now operating normally with proper flame recognition and consistent heat output.
Responded to no heat call for a Goodman furnace less than 10 years old. Upon inspection, discovered significant dust accumulation on internal components and heat exchanger. Removed front panel, thoroughly cleaned dust buildup from critical components, and restored proper operation. Unit now functioning correctly with normal heat output.
Performed routine maintenance tune-up on residential furnace system. Inspected heat exchanger and coils, noting normal copper oxidation on serpentine coils within acceptable parameters. Examined ductwork connections and verified proper insulation around unit; all components functioning correctly with no immediate service concerns identified.
Performed routine tune-up on residential HVAC system located in basement utility area. Inspected furnace unit with front panel removed to examine internal components including wiring, motors, and control boards; all systems functioning properly. Verified proper operation of condensate drainage system and confirmed no leaks or damage to connected ductwork and piping.
Installed new Lennox furnace unit in utility area, properly connecting dual PVC venting system to existing ductwork. Verified proper airflow direction as marked on adjacent ductwork and completed all necessary safety checks according to manufacturer specifications.
Performed routine prepaid maintenance visit on HVAC system. Conducted electrical testing using SC680 clamp meter, measuring 0.38 A current draw. Verified supply air temperature at 75.2°F using digital thermometer, confirming system is operating within normal parameters.
Performed annual tune-up on Weil-McLain propane boiler system. Conducted gas pressure test with TPI 620 manometer, confirming 7.55" WC gas pressure within manufacturer specifications. Inspected expansion tank, pressure gauge, and all copper/metal piping connections for proper operation and signs of leakage; all components functioning correctly.
Performed seasonal tune-up on Carrier furnace. Conducted amperage test using SC680 multimeter, recording 4.4 μA current draw which falls within normal operating parameters. Inspected all electrical connections, PVC venting, and visible components - all in good working condition with no signs of wear or damage. System is operating efficiently and no repairs were needed.
Performed scheduled maintenance service on HVAC system. Conducted electrical diagnostics using SC680 multimeter, measuring voltage at 56.96V. Checked system temperatures with PDT650 pocket thermometer, which displayed reading of 1445°F.
Responded to installation callback for Lennox HVAC system. Inspected unit mounted in utility area with proper positioning within framed wall structure. Verified all components secure and operational with manufacturer specifications visible and accessible.
Performed comprehensive tune-up service on HVAC system including electrical testing with Fieldpiece SC680 multimeter. Conducted microamp measurements (-18.8 μA DC) and verified system voltage reading of 56.93V. All electrical parameters confirmed within manufacturer specifications, ensuring optimal system operation and performance.
Inspected Ruud furnace installed in utility area showing no heat issue. Conducted diagnostic evaluation and identified faulty flame sensor as root cause. Cleaned sensor, verified proper ignition sequence, and restored normal heating operation. System now functioning correctly with all safety parameters within specifications.
Completed tune-up service on Goodman HVAC system. Inspected heat exchanger and found it in good condition with no cracks or corrosion. Checked system efficiency against EnergyGuide specifications and confirmed proper operation. All components functioning normally with no issues requiring repair.
Performed seasonal HVAC tune-up on Lennox system, including inspection of operating temperatures (recorded at 67.8°F) and replacement of dirty 16X25X4 air filter. System is now operating within normal parameters with improved airflow.
Performed routine tune-up on Lennox heating system, conducting comprehensive inspection of all components. Tested microamp current draw with Fieldpiece SC680 multimeter, confirming proper flame rectification at 10.0 μA which is within manufacturer specifications. Visual inspection of furnace installation, venting, and connections showed system in good working condition with no immediate concerns.
Performed scheduled preventative maintenance on residential HVAC system. Opened furnace access panel, inspected internal components including motor assembly, electrical connections, and control boards for proper operation. All components found to be functioning correctly with no issues detected.
Inspected existing PVC plumbing system with check valve components. Observed previous installation work including "The Quiet Check Valve" and earlier pump replacement (noted as "NEW Pump 1-8-12"). Documented current condition of pipe connections, valve integrity, and minor mineral deposits on lower pipe sections. Photos taken of the installation for reference documentation.
Successfully installed new furnace unit in basement utility room, complete with proper connection of all necessary ductwork, electrical components, and gas lines. Installation included positioning the unit in corner location with limited space, securing all connections, and verifying proper operation before completion.
Performed routine maintenance on HVAC system including inspection of copper heat exchange coils with finned tubing. Verified proper operation of the Honeywell digital thermostat which was correctly maintaining temperature at 68°F. System appears to be functioning within normal parameters.
Performed routine tune-up on residential HVAC system with Aprilaire whole-house humidifier. Inspected furnace components, electrical connections, and condensate drain lines. Verified proper operation of humidifier and checked adapter plate and mounting hardware for secure installation. All components functioning normally with no issues detected.
