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 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
Completed service inspection on residential heating system. Tested thermostat functionality and confirmed proper operation in heating mode with the Honeywell Home ProSeries thermostat showing accurate temperature readings and appropriate heating response. System now operating at optimal settings with energy-saving mode enabled.
Completed service inspection on residential heating system. Tested thermostat functionality and confirmed proper operation in heating mode with the Honeywell Home ProSeries thermostat showing accurate temperature readings and appropriate heating response. System now operating at optimal settings with energy-saving mode enabled.
Carlos R.
Carlos R. Checked in
Completed service inspection on residential heating system. Tested thermostat functionality and confirmed proper operation in heating mode with the Honeywell Home ProSeries thermostat showing accurate temperature readings and appropriate heating response. System now operating at optimal settings with energy-saving mode enabled.
Oak Creek, WI 53154
Completed follow-up service call on Lennox furnace system. Inspected basement installation and verified proper functioning of ductwork connections and gas piping. Checked and recalibrated Honeywell ProSeries thermostat which was displaying correct temperature (77°F heat setting) with temporary hold feature engaged.
Completed follow-up service call on Lennox furnace system. Inspected basement installation and verified proper functioning of ductwork connections and gas piping. Checked and recalibrated Honeywell ProSeries thermostat which was displaying correct temperature (77°F heat setting) with temporary hold feature engaged.
Carlos R.
Carlos R. Checked in
Completed follow-up service call on Lennox furnace system. Inspected basement installation and verified proper functioning of ductwork connections and gas piping. Checked and recalibrated Honeywell ProSeries thermostat which was displaying correct temperature (77°F heat setting) with temporary hold feature engaged.
Oak Creek, WI 53154
Responded to no-heat service call for Carrier Infinity furnace. Performed gas pressure verification test with digital manometer, confirming proper readings of 3.37/3.32 inWC within manufacturer specifications. Identified minor water staining near unit base which did not affect operation. System now functioning normally with proper heat output.
Responded to no-heat service call for Carrier Infinity furnace. Performed gas pressure verification test with digital manometer, confirming proper readings of 3.37/3.32 inWC within manufacturer specifications. Identified minor water staining near unit base which did not affect operation. System now functioning normally with proper heat output.
Carlos R.
Carlos R. Checked in
Responded to no-heat service call for Carrier Infinity furnace. Performed gas pressure verification test with digital manometer, confirming proper readings of 3.37/3.32 inWC within manufacturer specifications. Identified minor water staining near unit base which did not affect operation. System now functioning normally with proper heat output.
OAK CREEK, WI 53154
Successfully installed new furnace unit in basement location. Completed proper drainage system installation with PVC condensate lines and secured all connections. Ensured unit was properly positioned on concrete floor with appropriate clearance for ventilation and maintenance access.
Successfully installed new furnace unit in basement location. Completed proper drainage system installation with PVC condensate lines and secured all connections. Ensured unit was properly positioned on concrete floor with appropriate clearance for ventilation and maintenance access.
Aaron A.
Aaron A. Checked in
Successfully installed new furnace unit in basement location. Completed proper drainage system installation with PVC condensate lines and secured all connections. Ensured unit was properly positioned on concrete floor with appropriate clearance for ventilation and maintenance access.
Oak Creek, WI 53154
OAK CREEK, WI - Completed installation of a sump pump system with WRX battery backup in basement. System includes properly connected PVC discharge lines, electrical wiring, and a covered sump pit. All components were securely mounted to foundation walls and tested for proper operation to ensure effective basement water management and flood prevention.
Gabriel S.
Gabriel S. Checked in
Completed installation of a sump pump system with WRX battery backup in basement. System includes properly connected PVC discharge lines, electrical wiring, and a covered sump pit. All components were securely mounted to foundation walls and tested for proper operation to ensure effective basement water management and flood prevention.
OAK CREEK, WI 53154
Completed installation of a complete Lennox HVAC system at the residence. Set up and calibrated digital MA-1283A manometer to verify proper system pressures. Installed outdoor condensing unit on a stable pad with appropriate clearance, ensuring proper refrigerant line connections and drainage. System was tested and is functioning according to manufacturer specifications.
Completed installation of a complete Lennox HVAC system at the residence. Set up and calibrated digital MA-1283A manometer to verify proper system pressures. Installed outdoor condensing unit on a stable pad with appropriate clearance, ensuring proper refrigerant line connections and drainage. System was tested and is functioning according to manufacturer specifications.
Nate G.
Nate G. Checked in
Completed installation of a complete Lennox HVAC system at the residence. Set up and calibrated digital MA-1283A manometer to verify proper system pressures. Installed outdoor condensing unit on a stable pad with appropriate clearance, ensuring proper refrigerant line connections and drainage. System was tested and is functioning according to manufacturer specifications.
Oak Creek, WI 53154
Conducted combustion analysis on heating system using Testo 310 II analyzer, revealing critical safety concerns including dangerously elevated carbon monoxide levels (5450 ppm) and signs of significant heat exchanger deterioration. Visual inspection confirmed severe corrosion and rust damage to the heat exchanger components, indicating immediate replacement is necessary to prevent carbon monoxide leakage into living space.
Conducted combustion analysis on heating system using Testo 310 II analyzer, revealing critical safety concerns including dangerously elevated carbon monoxide levels (5450 ppm) and signs of significant heat exchanger deterioration. Visual inspection confirmed severe corrosion and rust damage to the heat exchanger components, indicating immediate replacement is necessary to prevent carbon monoxide leakage into living space.
Carlos R.
Carlos R. Checked in
Conducted combustion analysis on heating system using Testo 310 II analyzer, revealing critical safety concerns including dangerously elevated carbon monoxide levels (5450 ppm) and signs of significant heat exchanger deterioration. Visual inspection confirmed severe corrosion and rust damage to the heat exchanger components, indicating immediate replacement is necessary to prevent carbon monoxide leakage into living space.
Oak creek, WI 53154
Conducted inspection of Goodman furnace system in utility closet area. Identified significant ice damming and icicle formation along roof edge, indicating potential heat loss issues. Recommended improved attic insulation and ventilation to prevent future ice dam formation that could lead to water intrusion and system inefficiency.
Conducted inspection of Goodman furnace system in utility closet area. Identified significant ice damming and icicle formation along roof edge, indicating potential heat loss issues. Recommended improved attic insulation and ventilation to prevent future ice dam formation that could lead to water intrusion and system inefficiency.
Carlos R.
Carlos R. Checked in
Conducted inspection of Goodman furnace system in utility closet area. Identified significant ice damming and icicle formation along roof edge, indicating potential heat loss issues. Recommended improved attic insulation and ventilation to prevent future ice dam formation that could lead to water intrusion and system inefficiency.
Oak Creek, WI 53154
Conducted assessment of aging furnace unit showing significant dust accumulation and wear on internal components including blower motor, wiring, and gas valve assembly. Identified condensation issues on ductwork in basement utility area, indicating potential humidity control problems. Recommended complete HVAC system replacement to address efficiency concerns and prevent future moisture-related complications.
Conducted assessment of aging furnace unit showing significant dust accumulation and wear on internal components including blower motor, wiring, and gas valve assembly. Identified condensation issues on ductwork in basement utility area, indicating potential humidity control problems. Recommended complete HVAC system replacement to address efficiency concerns and prevent future moisture-related complications.
Josh V.
Josh V. Checked in
Conducted assessment of aging furnace unit showing significant dust accumulation and wear on internal components including blower motor, wiring, and gas valve assembly. Identified condensation issues on ductwork in basement utility area, indicating potential humidity control problems. Recommended complete HVAC system replacement to address efficiency concerns and prevent future moisture-related complications.
Oak Creek, WI 53154
Oak Creek, WI - Responded to service callback for commercial HVAC system. Conducted diagnostic inspection of air handling unit, identified and documented component configuration showing P1L2 designation on metal framework. Unit functionality verified following inspection.
Kevin P.
Kevin P. Checked in
Responded to service callback for commercial HVAC system. Conducted diagnostic inspection of air handling unit, identified and documented component configuration showing P1L2 designation on metal framework. Unit functionality verified following inspection.
Oak Creek, WI 53154
Responded to no-heat call on furnace system less than 10 years old. Diagnosed failed pressure switch in basement mechanical room. Cleaned condensate lines, replaced faulty pressure switch, and verified proper operation of system including the connected hydronic components. System now functioning within normal parameters with heat restored.
Responded to no-heat call on furnace system less than 10 years old. Diagnosed failed pressure switch in basement mechanical room. Cleaned condensate lines, replaced faulty pressure switch, and verified proper operation of system including the connected hydronic components. System now functioning within normal parameters with heat restored.
Ron B.
Ron B. Checked in
Responded to no-heat call on furnace system less than 10 years old. Diagnosed failed pressure switch in basement mechanical room. Cleaned condensate lines, replaced faulty pressure switch, and verified proper operation of system including the connected hydronic components. System now functioning within normal parameters with heat restored.
Oak Creek, WI 53154
Conducted comprehensive HVAC tune-up service including temperature differential testing. Measurements showed supply air temperature at 62.9°F and return air temperature at 136.0°F, indicating the system is operating efficiently with proper heat transfer across the evaporator coil.
Conducted comprehensive HVAC tune-up service including temperature differential testing. Measurements showed supply air temperature at 62.9°F and return air temperature at 136.0°F, indicating the system is operating efficiently with proper heat transfer across the evaporator coil.
Carlos R.
Carlos R. Checked in
Conducted comprehensive HVAC tune-up service including temperature differential testing. Measurements showed supply air temperature at 62.9°F and return air temperature at 136.0°F, indicating the system is operating efficiently with proper heat transfer across the evaporator coil.
Oak Creek, WI 53154
Oak Creek, WI - Successfully installed a mini-split system with outdoor condenser unit mounted on a metal platform on the exterior wall. Completed proper installation of refrigerant lines and electrical conduit, ensuring all connections were properly secured and weatherproofed against winter conditions. Verified system operation and functionality before completing the job.
CJ K.
CJ K. Checked in
Successfully installed a mini-split system with outdoor condenser unit mounted on a metal platform on the exterior wall. Completed proper installation of refrigerant lines and electrical conduit, ensuring all connections were properly secured and weatherproofed against winter conditions. Verified system operation and functionality before completing the job.
Oak Creek, WI 53154
Completed routine maintenance on Payne furnace system in residential basement. Identified significant rust and corrosion on interior components, particularly around the heat exchanger connection ports. Documented water heater condition (Bradford White model 100) for future reference as it appears to be approaching end of service life.
Completed routine maintenance on Payne furnace system in residential basement. Identified significant rust and corrosion on interior components, particularly around the heat exchanger connection ports. Documented water heater condition (Bradford White model 100) for future reference as it appears to be approaching end of service life.
Josh V.
Josh V. Checked in
Completed routine maintenance on Payne furnace system in residential basement. Identified significant rust and corrosion on interior components, particularly around the heat exchanger connection ports. Documented water heater condition (Bradford White model 100) for future reference as it appears to be approaching end of service life.
Oak Creek, WI 53154
Successfully installed a complete HVAC system featuring a Honeywell Home digital thermostat with temperature control functionality. System installation included proper mounting of equipment cabinet with secure copper line connections and appropriate fastening to ensure optimal system performance.
Successfully installed a complete HVAC system featuring a Honeywell Home digital thermostat with temperature control functionality. System installation included proper mounting of equipment cabinet with secure copper line connections and appropriate fastening to ensure optimal system performance.
James P.
James P. Checked in
Successfully installed a complete HVAC system featuring a Honeywell Home digital thermostat with temperature control functionality. System installation included proper mounting of equipment cabinet with secure copper line connections and appropriate fastening to ensure optimal system performance.
Oak Creek, WI 53154
Performed comprehensive HVAC tune-up including inspection of electrical components and ignition system. Removed and checked igniter assembly, noting normal wear. Inspected wiring connections at control board and pressure switch, ensuring proper electrical continuity throughout system. All components tested and verified operational.
Performed comprehensive HVAC tune-up including inspection of electrical components and ignition system. Removed and checked igniter assembly, noting normal wear. Inspected wiring connections at control board and pressure switch, ensuring proper electrical continuity throughout system. All components tested and verified operational.
Carlos R.
Carlos R. Checked in
Performed comprehensive HVAC tune-up including inspection of electrical components and ignition system. Removed and checked igniter assembly, noting normal wear. Inspected wiring connections at control board and pressure switch, ensuring proper electrical continuity throughout system. All components tested and verified operational.
Oak Creek, WI 53154
Oak Creek, WI - Performed routine tune-up on furnace, inspecting electrical components and connections. Examined control boards, wiring, and fan assembly for proper operation. All components were found to be in normal working condition with no signs of damage or corrosion.
Adriel H.
Adriel H. Checked in
Performed routine tune-up on furnace, inspecting electrical components and connections. Examined control boards, wiring, and fan assembly for proper operation. All components were found to be in normal working condition with no signs of damage or corrosion.
Oak Creek, WI 53154
Oak Creek, WI - Performed comprehensive HVAC system tune-up including inspection of furnace interior components. Verified proper electrical connections to control board and examined wiring integrity between blower motor assembly and circuit board controls. Cleaned accessible components and ensured all colored wiring connections (green, red, yellow, white, orange) were secure and properly terminated at appropriate control points.
Adriel H.
Adriel H. Checked in
Performed comprehensive HVAC system tune-up including inspection of furnace interior components. Verified proper electrical connections to control board and examined wiring integrity between blower motor assembly and circuit board controls. Cleaned accessible components and ensured all colored wiring connections (green, red, yellow, white, orange) were secure and properly terminated at appropriate control points.
Oak Creek, WI 53154
Successfully installed a Mitsubishi H2i heat pump system with the outdoor unit properly mounted on a concrete pad and secured to the residence. System was evacuated to 108 microns as verified with Yellow Jacket digital vacuum gauge, ensuring proper dehydration of the refrigerant circuit before commissioning. All electrical connections were completed according to manufacturer specifications with required safety measures implemented.
Successfully installed a Mitsubishi H2i heat pump system with the outdoor unit properly mounted on a concrete pad and secured to the residence. System was evacuated to 108 microns as verified with Yellow Jacket digital vacuum gauge, ensuring proper dehydration of the refrigerant circuit before commissioning. All electrical connections were completed according to manufacturer specifications with required safety measures implemented.
CJ K.
CJ K. Checked in
Successfully installed a Mitsubishi H2i heat pump system with the outdoor unit properly mounted on a concrete pad and secured to the residence. System was evacuated to 108 microns as verified with Yellow Jacket digital vacuum gauge, ensuring proper dehydration of the refrigerant circuit before commissioning. All electrical connections were completed according to manufacturer specifications with required safety measures implemented.
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.