Professional HVAC & Plumbing Repair In Oak Creek, WI

HVAC & Plumbing Services in Oak Creek, WI Since 1929

Thielmann - Shorewood - House 1

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:

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:

Schedule your ductwork service today by calling (262) 299-6197 or contacting us online!

Air Conditioning and HVAC Repair Services in Oak Creek, WI

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!

Air Conditioning and HVAC Repair Services in Oak Creek, WI

Reliable Plumbing Services in Oak Creek, WI

If left unattended, a plumbing problem can quickly go from a minor inconvenience to a major repair. When this happens to you, call Thielmann Heating, Cooling, and Plumbing! Our team of plumbers in Oak Creek have the training, experience, and tools needed to locate and repair any problem with your plumbing system. 

We fix everyday problems like dripping faucets, slow drains, and leaking pipes. We also handle larger projects, including full pipe replacements, water heater upgrades, and sump pump installation. Our goal is simple; keep your plumbing system reliable and your home safe from water damage.

The Oak Creek plumbers from Thielmann offer:

  • Leak detection and pipe repairs to stop hidden issues before they spread.
  • Drain cleaning to clear blockages and keep water flowing fast.
  • Garbage disposal repairs or installations to make kitchen cleanup simple.
  • Water heater service, repair, or replacement to keep your hot water consistent.
  • Fixture installation and repair for toilets, sinks, and faucets that need attention.
  • Water filtration and softening solutions for cleaner, better-tasting water.
  • Sump pump repairs and maintenance to protect your basement from flooding.

We believe every repair should last. Our licensed plumbers find the root cause, fix it correctly, and make sure you understand the work before we leave. We also perform routine plumbing checks to catch small problems before they become major repairs. For clear pricing, honest recommendations, and lasting results, call Thielmann Heating, Cooling, and Plumbing today at (262) 299-6197 to schedule your Oak Creek plumbing service.

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

Oak Creek, WI - 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.
Carlos R.
Carlos R. Checked in
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.
Oak Creek, WI 53154
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.
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.
Carlos R.
Carlos R. Checked in
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.
Oak Creek, WI 53154
Oak Creek, WI - 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.
Carlos R.
Carlos R. Checked in
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.
Oak Creek, WI 53154
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.
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.
Josh V.
Josh V. Checked in
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.
Oak Creek, WI 53154
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 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.
Carlos R.
Carlos R. Checked in
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.
Oak Creek, WI 53154
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 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.
Carlos R.
Carlos R. Checked in
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.
Oak Creek, WI 53154
Oak Creek, WI - 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.
Adriel H.
Adriel H. Checked in
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.
Oak Creek, WI 53154
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.
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.
Andy S.
Andy S. Checked in
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.
Oak Creek, WI 53154
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.
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.
Nate G.
Nate G. Checked in
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.
Oak Creek, WI 53154
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 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.
Ron B.
Ron B. Checked in
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.
Oak Creek, WI 53154
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.
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.
Josh V.
Josh V. Checked in
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.
Oak Creek, WI 53154
Responded to no-heat service call for Carrier Infinity furnace. Diagnosed failed ECM blower motor based on visual inspection and component testing. Replaced defective motor, recalibrated system, and verified proper operation through complete heating cycle test. Unit now functioning normally with restored airflow.
Responded to no-heat service call for Carrier Infinity furnace. Diagnosed failed ECM blower motor based on visual inspection and component testing. Replaced defective motor, recalibrated system, and verified proper operation through complete heating cycle test. Unit now functioning normally with restored airflow.
Josh V.
Josh V. Checked in
Responded to no-heat service call for Carrier Infinity furnace. Diagnosed failed ECM blower motor based on visual inspection and component testing. Replaced defective motor, recalibrated system, and verified proper operation through complete heating cycle test. Unit now functioning normally with restored airflow.
Oak Creek, WI 53154
Inspected unfinished basement area and completed installation of a new Carrier air handler unit. System features silver/light gray finish with integrated curved metallic ductwork connections. Verified proper placement of unit against concrete block wall and ensured all utility connections were properly secured to existing building infrastructure within the mechanical area.
Inspected unfinished basement area and completed installation of a new Carrier air handler unit. System features silver/light gray finish with integrated curved metallic ductwork connections. Verified proper placement of unit against concrete block wall and ensured all utility connections were properly secured to existing building infrastructure within the mechanical area.
Dave V.
Dave V. Checked in
Inspected unfinished basement area and completed installation of a new Carrier air handler unit. System features silver/light gray finish with integrated curved metallic ductwork connections. Verified proper placement of unit against concrete block wall and ensured all utility connections were properly secured to existing building infrastructure within the mechanical area.
Oak Creek, WI 53154
Oak Creek, WI - Inspected aging furnace system revealing significant corrosion at unit base and examined Honeywell control valve assembly. Noted extensive rust damage indicating prolonged moisture exposure affecting internal components, particularly around the circular access panel area. Documented condition with photos for comprehensive evaluation of system integrity.
Josh V.
Josh V. Checked in
Inspected aging furnace system revealing significant corrosion at unit base and examined Honeywell control valve assembly. Noted extensive rust damage indicating prolonged moisture exposure affecting internal components, particularly around the circular access panel area. Documented condition with photos for comprehensive evaluation of system integrity.
Oak Creek, WI 53154
Completed comprehensive annual tune-up on customer's furnace system, inspecting all internal components. Removed front panel to access and clean blower assembly, check electrical connections, and verify proper operation of motor. Examined circuit boards and control wiring for any signs of wear or damage - all components functioning normally. System returned to service in good operating condition.
Completed comprehensive annual tune-up on customer's furnace system, inspecting all internal components. Removed front panel to access and clean blower assembly, check electrical connections, and verify proper operation of motor. Examined circuit boards and control wiring for any signs of wear or damage - all components functioning normally. System returned to service in good operating condition.
Adriel H.
Adriel H. Checked in
Completed comprehensive annual tune-up on customer's furnace system, inspecting all internal components. Removed front panel to access and clean blower assembly, check electrical connections, and verify proper operation of motor. Examined circuit boards and control wiring for any signs of wear or damage - all components functioning normally. System returned to service in good operating condition.
Oak Creek, WI 53154
Performed routine tune-up on HVAC system. Inspected main circuit board and electrical connections for proper function and secure wiring. Examined all interior components including motor assemblies, wiring harnesses, and control boards to ensure optimal system operation and safety compliance.
Performed routine tune-up on HVAC system. Inspected main circuit board and electrical connections for proper function and secure wiring. Examined all interior components including motor assemblies, wiring harnesses, and control boards to ensure optimal system operation and safety compliance.
Ron B.
Ron B. Checked in
Performed routine tune-up on HVAC system. Inspected main circuit board and electrical connections for proper function and secure wiring. Examined all interior components including motor assemblies, wiring harnesses, and control boards to ensure optimal system operation and safety compliance.
Oak Creek, WI 53154
Performed routine HVAC tune-up and identified significant corrosion and rust formation along metal seams in the unit. Documented extensive discoloration and deterioration at critical junction points that may indicate moisture intrusion or ongoing water damage requiring attention in the near future.
Performed routine HVAC tune-up and identified significant corrosion and rust formation along metal seams in the unit. Documented extensive discoloration and deterioration at critical junction points that may indicate moisture intrusion or ongoing water damage requiring attention in the near future.
Todd H.
Todd H. Checked in
Performed routine HVAC tune-up and identified significant corrosion and rust formation along metal seams in the unit. Documented extensive discoloration and deterioration at critical junction points that may indicate moisture intrusion or ongoing water damage requiring attention in the near future.
Oak Creek, WI 53154
Conducted comprehensive assessment of existing dual wall-mounted boiler system with associated copper piping network and expansion tank. Documented significant water damage and mineral deposits on concrete floor, indicating potential previous leakage issues. Inspection revealed complex plumbing configuration with multiple control valves, pressure gauges, and insulated pipes connecting to cylindrical storage tank, requiring evaluation for system optimization or replacement.
Conducted comprehensive assessment of existing dual wall-mounted boiler system with associated copper piping network and expansion tank. Documented significant water damage and mineral deposits on concrete floor, indicating potential previous leakage issues. Inspection revealed complex plumbing configuration with multiple control valves, pressure gauges, and insulated pipes connecting to cylindrical storage tank, requiring evaluation for system optimization or replacement.
Dave V.
Dave V. Checked in
Conducted comprehensive assessment of existing dual wall-mounted boiler system with associated copper piping network and expansion tank. Documented significant water damage and mineral deposits on concrete floor, indicating potential previous leakage issues. Inspection revealed complex plumbing configuration with multiple control valves, pressure gauges, and insulated pipes connecting to cylindrical storage tank, requiring evaluation for system optimization or replacement.
Oak Creek, WI 53154
Oak Creek, WI - Conducted comprehensive HVAC system tune-up, focusing on inspection of internal components including blower motor, circuit board, and gas valve assembly. Examined wiring connections across multiple harnesses and verified proper electrical integrity throughout system. Completed routine preventative maintenance to ensure optimal operational efficiency and reliability.
Adriel H.
Adriel H. Checked in
Conducted comprehensive HVAC system tune-up, focusing on inspection of internal components including blower motor, circuit board, and gas valve assembly. Examined wiring connections across multiple harnesses and verified proper electrical integrity throughout system. Completed routine preventative maintenance to ensure optimal operational efficiency and reliability.
Oak Creek, WI 53154
Oak Creek, WI - Responded to no heat service call for Goodman furnace. Diagnosed failed flame sensor causing system shutdown during ignition sequence. Cleaned flame sensor contacts and verified proper operation through multiple heating cycles. System now functioning correctly with strong flame signal and consistent heat output.
Josh V.
Josh V. Checked in
Responded to no heat service call for Goodman furnace. Diagnosed failed flame sensor causing system shutdown during ignition sequence. Cleaned flame sensor contacts and verified proper operation through multiple heating cycles. System now functioning correctly with strong flame signal and consistent heat output.
Oak Creek, WI 53154
What To Expect

Discover the Thielmann Heating, Cooling & Plumbing Difference

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Review Image
Our Reviews

See What Your Neighbors Are Saying

I liked my experience with them. The guys I spoke with prior to doing the work, the estimation phase , and the ones I spoke with after the work was completed had enough knowledge and suggestion to answer all my questions. I’m pleased with the job…

De'Angelo T.

De'Angelo T.

Excellent team from start to finish. They were all very respectful of our property, as they promptly and professionally went about their task of installing a new air conditioner system. The system works very well, so far. It is also much quieter than the previous 40+…

Jerry W.

Jerry W.

Thielmann did a tremendous job replacing our Carrier furnace. They worked with us to make sure we were able to get the right product and even worked with Carrier on the issues we were seeing on our old furnace as it was failing sooner than it…

J. K.

J. K.

I've been using Thielmann Group for all my heating and air conditioning since I built my house 23 years ago. They have been great in emergency service and regular maintenance service. On time and very friendly staff. Would, and have, recommend them to anyone!

Paul K.

Paul K.

I have used Thielmann for both installation of a new furnace + A/C recently, but also an install of a ductless mini-split unit six years ago. I fully trust their brands and recommendations. I can't say enough of about this company. Every single person from administrative…

Christin C.

Christin C.