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

Responded to no-heat call for 10+ year old furnace system. Upon inspection, found significant dust accumulation on internal components requiring thorough cleaning. Thermostat was functioning properly in heat mode but showing 52°F indoor temperature with "Heat On" status, indicating furnace failure to produce adequate heat. Serviced unit by cleaning components, replacing worn igniter, and verifying proper operation with the Honeywell digital thermostat.
Responded to no-heat call for 10+ year old furnace system. Upon inspection, found significant dust accumulation on internal components requiring thorough cleaning. Thermostat was functioning properly in heat mode but showing 52°F indoor temperature with "Heat On" status, indicating furnace failure to produce adequate heat. Serviced unit by cleaning components, replacing worn igniter, and verifying proper operation with the Honeywell digital thermostat.
Makinze C.
Makinze C. Checked in
Responded to no-heat call for 10+ year old furnace system. Upon inspection, found significant dust accumulation on internal components requiring thorough cleaning. Thermostat was functioning properly in heat mode but showing 52°F indoor temperature with "Heat On" status, indicating furnace failure to produce adequate heat. Serviced unit by cleaning components, replacing worn igniter, and verifying proper operation with the Honeywell digital thermostat.
OAK CREEK, WI 53154
Performed scheduled maintenance visit on HVAC system. Conducted electrical diagnostics using Fieldpiece SC680 multimeter, recording voltage readings of 54.21V. Inspected condensate drain line for proper flow and checked refrigerant lines for integrity and appropriate installation.
Performed scheduled maintenance visit on HVAC system. Conducted electrical diagnostics using Fieldpiece SC680 multimeter, recording voltage readings of 54.21V. Inspected condensate drain line for proper flow and checked refrigerant lines for integrity and appropriate installation.
Carlos R.
Carlos R. Checked in
Performed scheduled maintenance visit on HVAC system. Conducted electrical diagnostics using Fieldpiece SC680 multimeter, recording voltage readings of 54.21V. Inspected condensate drain line for proper flow and checked refrigerant lines for integrity and appropriate installation.
Oak Creek, WI 53154
Performed routine maintenance inspection on HVAC system. Examined internal valve assembly and control board, confirming proper wire connections and component integrity. All electrical connections were secure with no signs of wear or damage to the control mechanism.
Performed routine maintenance inspection on HVAC system. Examined internal valve assembly and control board, confirming proper wire connections and component integrity. All electrical connections were secure with no signs of wear or damage to the control mechanism.
Carlos R.
Carlos R. Checked in
Performed routine maintenance inspection on HVAC system. Examined internal valve assembly and control board, confirming proper wire connections and component integrity. All electrical connections were secure with no signs of wear or damage to the control mechanism.
Oak Creek, WI 53154
Oak Creek, WI - Performed scheduled preventive maintenance on Honeywell HVAC system. Accessed and inspected internal components including blower assembly, motor, gas valve, control board, and electrical connections. All systems functioning properly with no issues identified during this prepaid maintenance visit.
Adriel H.
Adriel H. Checked in
Performed scheduled preventive maintenance on Honeywell HVAC system. Accessed and inspected internal components including blower assembly, motor, gas valve, control board, and electrical connections. All systems functioning properly with no issues identified during this prepaid maintenance visit.
Oak Creek, WI 53154
Performed routine maintenance on gas furnace system. Conducted electrical diagnostics with multimeter showing 57.15V reading across control board components. Verified proper flame characteristics with strong blue flame pattern indicating complete combustion and correct gas-air mixture.
Performed routine maintenance on gas furnace system. Conducted electrical diagnostics with multimeter showing 57.15V reading across control board components. Verified proper flame characteristics with strong blue flame pattern indicating complete combustion and correct gas-air mixture.
Makinze C.
Makinze C. Checked in
Performed routine maintenance on gas furnace system. Conducted electrical diagnostics with multimeter showing 57.15V reading across control board components. Verified proper flame characteristics with strong blue flame pattern indicating complete combustion and correct gas-air mixture.
Oak Creek, WI 53154
Oak Creek, WI - Performed scheduled preventative maintenance on Honeywell HVAC system. Conducted thorough inspection of furnace components including blower motor assembly, control board, electrical connections, and wire harnesses. System was found to be properly installed and in normal working condition with no visible damage, leaks or anomalies.
Adriel H.
Adriel H. Checked in
Performed scheduled preventative maintenance on Honeywell HVAC system. Conducted thorough inspection of furnace components including blower motor assembly, control board, electrical connections, and wire harnesses. System was found to be properly installed and in normal working condition with no visible damage, leaks or anomalies.
Oak Creek, WI 53154
Performed gas pressure testing on the HVAC system using a UEI EM201B diagnostic meter, taking measurements at both low and high settings (1503 InWc and 3550 InWc respectively). Verified proper gas flow and pressure readings within manufacturer specifications to ensure optimal system operation and safety compliance.
Performed gas pressure testing on the HVAC system using a UEI EM201B diagnostic meter, taking measurements at both low and high settings (1503 InWc and 3550 InWc respectively). Verified proper gas flow and pressure readings within manufacturer specifications to ensure optimal system operation and safety compliance.
Adriel H.
Adriel H. Checked in
Performed gas pressure testing on the HVAC system using a UEI EM201B diagnostic meter, taking measurements at both low and high settings (1503 InWc and 3550 InWc respectively). Verified proper gas flow and pressure readings within manufacturer specifications to ensure optimal system operation and safety compliance.
Oak Creek, WI 53154
Performed warranty inspection of Lennox furnace system with connected Honeywell Home thermostat. Verified proper installation of PVC exhaust/intake pipes and confirmed thermostat functionality at 60°F setpoint. Documented system condition with photos for warranty records.
Performed warranty inspection of Lennox furnace system with connected Honeywell Home thermostat. Verified proper installation of PVC exhaust/intake pipes and confirmed thermostat functionality at 60°F setpoint. Documented system condition with photos for warranty records.
Adriel H.
Adriel H. Checked in
Performed warranty inspection of Lennox furnace system with connected Honeywell Home thermostat. Verified proper installation of PVC exhaust/intake pipes and confirmed thermostat functionality at 60°F setpoint. Documented system condition with photos for warranty records.
OAK CREEK, WI 53154
Responded to no heat call for system under 10 years old. Discovered condensate drain assembly with significant corrosion and mineral buildup causing blockage. Replaced damaged condensate trap and cleared drain line, restoring proper system operation and heat function.
Responded to no heat call for system under 10 years old. Discovered condensate drain assembly with significant corrosion and mineral buildup causing blockage. Replaced damaged condensate trap and cleared drain line, restoring proper system operation and heat function.
Kevin P.
Kevin P. Checked in
Responded to no heat call for system under 10 years old. Discovered condensate drain assembly with significant corrosion and mineral buildup causing blockage. Replaced damaged condensate trap and cleared drain line, restoring proper system operation and heat function.
Oak Creek, WI 53154
Performed maintenance service on HVAC system. Inspected Honeywell Home ProSeries thermostat (functioning properly with heat set to 78°F) and replaced severely clogged air filter which was completely saturated with dust and debris, restricting proper airflow to the furnace.
Performed maintenance service on HVAC system. Inspected Honeywell Home ProSeries thermostat (functioning properly with heat set to 78°F) and replaced severely clogged air filter which was completely saturated with dust and debris, restricting proper airflow to the furnace.
Makinze C.
Makinze C. Checked in
Performed maintenance service on HVAC system. Inspected Honeywell Home ProSeries thermostat (functioning properly with heat set to 78°F) and replaced severely clogged air filter which was completely saturated with dust and debris, restricting proper airflow to the furnace.
OAK CREEK, WI 53154
Performed inspection on residential furnace system, examining PVC exhaust/intake piping and interior components. Inspected control board, blower motor assembly, and electrical connections with front access panel removed. System was found to be operating within normal parameters with proper venting configuration.
Performed inspection on residential furnace system, examining PVC exhaust/intake piping and interior components. Inspected control board, blower motor assembly, and electrical connections with front access panel removed. System was found to be operating within normal parameters with proper venting configuration.
Ron B.
Ron B. Checked in
Performed inspection on residential furnace system, examining PVC exhaust/intake piping and interior components. Inspected control board, blower motor assembly, and electrical connections with front access panel removed. System was found to be operating within normal parameters with proper venting configuration.
Oak Creek, WI 53154
Oak Creek, WI - Performed comprehensive inspection of split-system HVAC unit, focusing on electrical connections and control board integrity. Opened access panel to examine motor assembly wiring (green/red/yellow/white), verified secure connections, and inspected circuit board for proper function. All components were found in good working order with no issues requiring immediate attention.
Adriel H.
Adriel H. Checked in
Performed comprehensive inspection of split-system HVAC unit, focusing on electrical connections and control board integrity. Opened access panel to examine motor assembly wiring (green/red/yellow/white), verified secure connections, and inspected circuit board for proper function. All components were found in good working order with no issues requiring immediate attention.
Oak Creek, WI 53154
Successfully installed a complete HVAC system with a digital control interface mounted on the wall, providing user-friendly access to multiple evaporator options including models CNPV1917, CNPV2M, CNPV2517, CNPV2514, CIV1814, and CNPV3014. System was properly integrated with the existing water heater and utility infrastructure, with all copper lines neatly bundled and secured for optimal performance and aesthetics.
Successfully installed a complete HVAC system with a digital control interface mounted on the wall, providing user-friendly access to multiple evaporator options including models CNPV1917, CNPV2M, CNPV2517, CNPV2514, CIV1814, and CNPV3014. System was properly integrated with the existing water heater and utility infrastructure, with all copper lines neatly bundled and secured for optimal performance and aesthetics.
CJ K.
CJ K. Checked in
Successfully installed a complete HVAC system with a digital control interface mounted on the wall, providing user-friendly access to multiple evaporator options including models CNPV1917, CNPV2M, CNPV2517, CNPV2514, CIV1814, and CNPV3014. System was properly integrated with the existing water heater and utility infrastructure, with all copper lines neatly bundled and secured for optimal performance and aesthetics.
Oak Creek, WI 53154
OAK CREEK, WI - Performed routine scheduled maintenance on gas furnace system. Inspected internal components including blower motor, circuit board, gas valve assembly, and ignition system, confirming all connections are secure and components functioning properly. System is operating within normal parameters with no immediate concerns identified.
Adriel H.
Adriel H. Checked in
Performed routine scheduled maintenance on gas furnace system. Inspected internal components including blower motor, circuit board, gas valve assembly, and ignition system, confirming all connections are secure and components functioning properly. System is operating within normal parameters with no immediate concerns identified.
OAK CREEK, WI 53154
Performed routine HVAC tune-up including electrical system diagnostics with voltage readings measuring 288V on primary components. Discovered heavily soiled air filter during inspection and replaced with new filter to improve system efficiency and airflow.
Performed routine HVAC tune-up including electrical system diagnostics with voltage readings measuring 288V on primary components. Discovered heavily soiled air filter during inspection and replaced with new filter to improve system efficiency and airflow.
Makinze C.
Makinze C. Checked in
Performed routine HVAC tune-up including electrical system diagnostics with voltage readings measuring 288V on primary components. Discovered heavily soiled air filter during inspection and replaced with new filter to improve system efficiency and airflow.
Oak Creek, WI 53154
Inspected and documented existing boiler system including expansion tank with proper labeling and associated copper piping network. System features multiple valve assemblies and pressure regulation components mounted to concrete block wall in utility area. All connections appear intact with expected aging patina on copper components.
Inspected and documented existing boiler system including expansion tank with proper labeling and associated copper piping network. System features multiple valve assemblies and pressure regulation components mounted to concrete block wall in utility area. All connections appear intact with expected aging patina on copper components.
Kevin P.
Kevin P. Checked in
Inspected and documented existing boiler system including expansion tank with proper labeling and associated copper piping network. System features multiple valve assemblies and pressure regulation components mounted to concrete block wall in utility area. All connections appear intact with expected aging patina on copper components.
Oak Creek, WI 53154
Performed routine maintenance on Carrier HVAC system including airflow verification testing. Confirmed proper system operation with digital thermostat functioning correctly. Advised customer about upcoming air filter replacement requirement as indicated by thermostat reminder notification.
Performed routine maintenance on Carrier HVAC system including airflow verification testing. Confirmed proper system operation with digital thermostat functioning correctly. Advised customer about upcoming air filter replacement requirement as indicated by thermostat reminder notification.
Adriel H.
Adriel H. Checked in
Performed routine maintenance on Carrier HVAC system including airflow verification testing. Confirmed proper system operation with digital thermostat functioning correctly. Advised customer about upcoming air filter replacement requirement as indicated by thermostat reminder notification.
Oak Creek, WI 53154
Oak Creek, WI - Performed comprehensive tune-up on residential furnace system, including inspection of blower motor, electrical components, heat exchanger, and gas connections. Removed access panel to conduct thorough examination of internal components and verified all safety mechanisms were functioning properly. System was returned to service in optimal operating condition with all panels properly secured.
Adriel H.
Adriel H. Checked in
Performed comprehensive tune-up on residential furnace system, including inspection of blower motor, electrical components, heat exchanger, and gas connections. Removed access panel to conduct thorough examination of internal components and verified all safety mechanisms were functioning properly. System was returned to service in optimal operating condition with all panels properly secured.
Oak Creek, WI 53154
Oak Creek, WI - Inspected Goodman furnace system during callback service. Verified proper installation of intake and exhaust venting, confirmed all safety labels were intact, and examined overall condition of unit. System appears to be functioning correctly with no visible damage or installation issues.
Carlos R.
Carlos R. Checked in
Inspected Goodman furnace system during callback service. Verified proper installation of intake and exhaust venting, confirmed all safety labels were intact, and examined overall condition of unit. System appears to be functioning correctly with no visible damage or installation issues.
Oak Creek, WI 53154
Performed comprehensive electrical inspection on HVAC system with focus on terminal connections and wiring integrity. Conducted voltage testing using SC680 multimeter, confirming proper electrical values at 0.29V across identified circuits. All connections were verified secure and system operation restored to manufacturer specifications.
Performed comprehensive electrical inspection on HVAC system with focus on terminal connections and wiring integrity. Conducted voltage testing using SC680 multimeter, confirming proper electrical values at 0.29V across identified circuits. All connections were verified secure and system operation restored to manufacturer specifications.
Carlos R.
Carlos R. Checked in
Performed comprehensive electrical inspection on HVAC system with focus on terminal connections and wiring integrity. Conducted voltage testing using SC680 multimeter, confirming proper electrical values at 0.29V across identified circuits. All connections were verified secure and system operation restored to manufacturer specifications.
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.

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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.