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

Completed comprehensive AC tune-up service on residential cooling system. Performed thorough inspection of outdoor condenser unit, including examination of electrical components such as capacitor and contactor with associated wiring connections, verified proper operation of all mechanical components, and inspected ductwork system interior for cleanliness and structural integrity.
Completed comprehensive AC tune-up service on residential cooling system. Performed thorough inspection of outdoor condenser unit, including examination of electrical components such as capacitor and contactor with associated wiring connections, verified proper operation of all mechanical components, and inspected ductwork system interior for cleanliness and structural integrity.
Makinze C.
Makinze C. Checked in
Completed comprehensive AC tune-up service on residential cooling system. Performed thorough inspection of outdoor condenser unit, including examination of electrical components such as capacitor and contactor with associated wiring connections, verified proper operation of all mechanical components, and inspected ductwork system interior for cleanliness and structural integrity.
Oak Creek, WI 53154
Conducted on-site assessment of residential water heater experiencing active leak causing water damage to floor. Documented existing installation including plumbing connections, PEX distribution manifold, and current drain pan configuration. Provided estimate for complete water heater replacement including removal of failed unit, installation of new water heater with proper venting and connections, and integration with existing radiant heating distribution system.
Conducted on-site assessment of residential water heater experiencing active leak causing water damage to floor. Documented existing installation including plumbing connections, PEX distribution manifold, and current drain pan configuration. Provided estimate for complete water heater replacement including removal of failed unit, installation of new water heater with proper venting and connections, and integration with existing radiant heating distribution system.
Rudy L.
Rudy L. Checked in
Conducted on-site assessment of residential water heater experiencing active leak causing water damage to floor. Documented existing installation including plumbing connections, PEX distribution manifold, and current drain pan configuration. Provided estimate for complete water heater replacement including removal of failed unit, installation of new water heater with proper venting and connections, and integration with existing radiant heating distribution system.
Oak Creek, WI 53154
Completed preventative maintenance cooling system inspection as part of recurring membership agreement. Replaced air filter with new unit and performed electrical diagnostics using clamp meter, recording amperage draw of 19.2A to verify proper system operation and compressor performance.
Completed preventative maintenance cooling system inspection as part of recurring membership agreement. Replaced air filter with new unit and performed electrical diagnostics using clamp meter, recording amperage draw of 19.2A to verify proper system operation and compressor performance.
Makinze C.
Makinze C. Checked in
Completed preventative maintenance cooling system inspection as part of recurring membership agreement. Replaced air filter with new unit and performed electrical diagnostics using clamp meter, recording amperage draw of 19.2A to verify proper system operation and compressor performance.
Oak Creek, WI 53154
Responded to gas line repair per approved estimate. Upon arrival, located severely deteriorated and corroded gas piping in basement utility area showing extensive black discoloration and material degradation. Replaced damaged section of gas line with new approved piping and fittings. Tested all connections for leaks using approved methods and verified system integrity. Restored gas service to safe operating condition and confirmed proper operation of all affected equipment.
Responded to gas line repair per approved estimate. Upon arrival, located severely deteriorated and corroded gas piping in basement utility area showing extensive black discoloration and material degradation. Replaced damaged section of gas line with new approved piping and fittings. Tested all connections for leaks using approved methods and verified system integrity. Restored gas service to safe operating condition and confirmed proper operation of all affected equipment.
Carlos R.
Carlos R. Checked in
Responded to gas line repair per approved estimate. Upon arrival, located severely deteriorated and corroded gas piping in basement utility area showing extensive black discoloration and material degradation. Replaced damaged section of gas line with new approved piping and fittings. Tested all connections for leaks using approved methods and verified system integrity. Restored gas service to safe operating condition and confirmed proper operation of all affected equipment.
Oak Creek, WI 53154
Performed routine maintenance and tune-up on residential air conditioning system. Conducted electrical diagnostics using digital multimeter, verifying proper voltage and capacitance readings on outdoor condensing unit. Inspected evaporator coil assembly and blower motor, noting moderate corrosion and staining on drain pan that will require monitoring for potential future replacement.
Performed routine maintenance and tune-up on residential air conditioning system. Conducted electrical diagnostics using digital multimeter, verifying proper voltage and capacitance readings on outdoor condensing unit. Inspected evaporator coil assembly and blower motor, noting moderate corrosion and staining on drain pan that will require monitoring for potential future replacement.
Carlos R.
Carlos R. Checked in
Performed routine maintenance and tune-up on residential air conditioning system. Conducted electrical diagnostics using digital multimeter, verifying proper voltage and capacitance readings on outdoor condensing unit. Inspected evaporator coil assembly and blower motor, noting moderate corrosion and staining on drain pan that will require monitoring for potential future replacement.
Oak Creek, WI 53154
Completed air conditioning tune-up on rooftop HVAC unit. Opened and inspected both rooftop unit and ground-level condenser, finding moderate dirt and debris accumulation on fan assemblies and internal components. Cleaned fan blades, housing, and compressor area, removing outdoor debris and grime buildup from all accessible surfaces.
Completed air conditioning tune-up on rooftop HVAC unit. Opened and inspected both rooftop unit and ground-level condenser, finding moderate dirt and debris accumulation on fan assemblies and internal components. Cleaned fan blades, housing, and compressor area, removing outdoor debris and grime buildup from all accessible surfaces.
Makinze C.
Makinze C. Checked in
Completed air conditioning tune-up on rooftop HVAC unit. Opened and inspected both rooftop unit and ground-level condenser, finding moderate dirt and debris accumulation on fan assemblies and internal components. Cleaned fan blades, housing, and compressor area, removing outdoor debris and grime buildup from all accessible surfaces.
Oak Creek, WI 53154
Performed routine maintenance tune-up on Armstrong outdoor condensing unit. Upon inspection, discovered severely deteriorated condenser coil with extensive fin damage, accumulated debris, and compromised heat transfer surfaces requiring immediate attention. Documented equipment condition with photographic evidence showing significant degradation of coil assembly and surrounding components.
Performed routine maintenance tune-up on Armstrong outdoor condensing unit. Upon inspection, discovered severely deteriorated condenser coil with extensive fin damage, accumulated debris, and compromised heat transfer surfaces requiring immediate attention. Documented equipment condition with photographic evidence showing significant degradation of coil assembly and surrounding components.
Carlos R.
Carlos R. Checked in
Performed routine maintenance tune-up on Armstrong outdoor condensing unit. Upon inspection, discovered severely deteriorated condenser coil with extensive fin damage, accumulated debris, and compromised heat transfer surfaces requiring immediate attention. Documented equipment condition with photographic evidence showing significant degradation of coil assembly and surrounding components.
Oak Creek, WI 53154
Oak Creek, WI - Performed comprehensive diagnostic evaluation of LG mini split system, recording compressor and electrical component resistance measurements to verify proper operation. Successfully replaced failed inducer motor in furnace to restore proper combustion air flow and system functionality. Identified and corrected banging noise in ductwork by securing loose sections and adjusting supports to eliminate operational disturbances.
Kevin P.
Kevin P. Checked in
Performed comprehensive diagnostic evaluation of LG mini split system, recording compressor and electrical component resistance measurements to verify proper operation. Successfully replaced failed inducer motor in furnace to restore proper combustion air flow and system functionality. Identified and corrected banging noise in ductwork by securing loose sections and adjusting supports to eliminate operational disturbances.
Oak Creek, WI 53154
Completed routine HVAC tune-up and system inspection. Examined and documented the condition of the air filtration system, noting pleated filter with dust accumulation between ridges. Inspected air handler unit with ribbed coil surface, confirming proper installation and overall clean, well-maintained condition of components.
Completed routine HVAC tune-up and system inspection. Examined and documented the condition of the air filtration system, noting pleated filter with dust accumulation between ridges. Inspected air handler unit with ribbed coil surface, confirming proper installation and overall clean, well-maintained condition of components.
Carlos R.
Carlos R. Checked in
Completed routine HVAC tune-up and system inspection. Examined and documented the condition of the air filtration system, noting pleated filter with dust accumulation between ridges. Inspected air handler unit with ribbed coil surface, confirming proper installation and overall clean, well-maintained condition of components.
Oak Creek, WI 53154
OAK CREEK, WI - Performed diagnostic evaluation on outdoor condensing unit experiencing catastrophic failure. Upon inspection, found condenser severely deteriorated with physical breakdown of components, excessive oil contamination throughout unit, and structural integrity compromised to the point of material crumbling on contact. Documented unit condition with photographs showing 6-year-old system with premature failure requiring replacement.
Ron B.
Ron B. Checked in
Performed diagnostic evaluation on outdoor condensing unit experiencing catastrophic failure. Upon inspection, found condenser severely deteriorated with physical breakdown of components, excessive oil contamination throughout unit, and structural integrity compromised to the point of material crumbling on contact. Documented unit condition with photographs showing 6-year-old system with premature failure requiring replacement.
OAK CREEK, WI 53154
Conducted comprehensive indoor air quality assessment of residential HVAC system and mechanical room. Documented existing plumbing connections, water heater installation with brass fittings, and HVAC ductwork configuration in utility area showing signs of previous maintenance work. Evaluated exterior door conditions revealing significant weathering and paint deterioration on door frame that may contribute to air infiltration and compromise building envelope integrity, potentially impacting overall system efficiency and indoor air quality performance.
Conducted comprehensive indoor air quality assessment of residential HVAC system and mechanical room. Documented existing plumbing connections, water heater installation with brass fittings, and HVAC ductwork configuration in utility area showing signs of previous maintenance work. Evaluated exterior door conditions revealing significant weathering and paint deterioration on door frame that may contribute to air infiltration and compromise building envelope integrity, potentially impacting overall system efficiency and indoor air quality performance.
Chris M.
Chris M. Checked in
Conducted comprehensive indoor air quality assessment of residential HVAC system and mechanical room. Documented existing plumbing connections, water heater installation with brass fittings, and HVAC ductwork configuration in utility area showing signs of previous maintenance work. Evaluated exterior door conditions revealing significant weathering and paint deterioration on door frame that may contribute to air infiltration and compromise building envelope integrity, potentially impacting overall system efficiency and indoor air quality performance.
OAK CREEK, WI 53154
# Plumbing Service - Inspection

Conducted routine plumbing inspection of laundry room area, examining water supply lines, drain connections, and shut-off valves serving two top-loading washing machines. Verified proper installation of supply hoses, checked for signs of leaks or water damage on walls and flooring, and confirmed adequate drainage function. All plumbing components were found to be in satisfactory working condition with no immediate service requirements identified.
# Plumbing Service - Inspection

Conducted routine plumbing inspection of laundry room area, examining water supply lines, drain connections, and shut-off valves serving two top-loading washing machines. Verified proper installation of supply hoses, checked for signs of leaks or water damage on walls and flooring, and confirmed adequate drainage function. All plumbing components were found to be in satisfactory working condition with no immediate service requirements identified.
Dan E.
Dan E. Checked in
# Plumbing Service - Inspection Conducted routine plumbing inspection of laundry room area, examining water supply lines, drain connections, and shut-off valves serving two top-loading washing machines. Verified proper installation of supply hoses, checked for signs of leaks or water damage on walls and flooring, and confirmed adequate drainage function. All plumbing components were found to be in satisfactory working condition with no immediate service requirements identified.
OAK CREEK, WI 53154
Completed installation and system start-up of residential air conditioning unit. Performed refrigerant charging procedures and verified system pressures using digital manifold gauges, with readings showing 110.1 psig on low side and 379.1 psig on high side, along with superheat of 88°F and subcooling of 145°F. Condenser unit properly positioned on concrete pad with appropriate clearances, refrigerant line sets insulated and routed to building, and all electrical connections completed per manufacturer specifications.
Completed installation and system start-up of residential air conditioning unit. Performed refrigerant charging procedures and verified system pressures using digital manifold gauges, with readings showing 110.1 psig on low side and 379.1 psig on high side, along with superheat of 88°F and subcooling of 145°F. Condenser unit properly positioned on concrete pad with appropriate clearances, refrigerant line sets insulated and routed to building, and all electrical connections completed per manufacturer specifications.
Carlos R.
Carlos R. Checked in
Completed installation and system start-up of residential air conditioning unit. Performed refrigerant charging procedures and verified system pressures using digital manifold gauges, with readings showing 110.1 psig on low side and 379.1 psig on high side, along with superheat of 88°F and subcooling of 145°F. Condenser unit properly positioned on concrete pad with appropriate clearances, refrigerant line sets insulated and routed to building, and all electrical connections completed per manufacturer specifications.
Oak Creek, WI 53154
Completed installation of residential sump pump system in basement floor basin. Installed black submersible pump unit in existing concrete pit with white PVC discharge piping and electrical connection, secured with metal hose clamp. System tested and operational for basement water management and flood prevention.
Completed installation of residential sump pump system in basement floor basin. Installed black submersible pump unit in existing concrete pit with white PVC discharge piping and electrical connection, secured with metal hose clamp. System tested and operational for basement water management and flood prevention.
Gabriel S.
Gabriel S. Checked in
Completed installation of residential sump pump system in basement floor basin. Installed black submersible pump unit in existing concrete pit with white PVC discharge piping and electrical connection, secured with metal hose clamp. System tested and operational for basement water management and flood prevention.
Oak Creek, WI 53154
Performed warranty inspection and leveling service on HVAC cooling unit. Examined evaporator coil assembly and verified heat exchanger fins were clean and free of debris. Noted condensation present on metal housing, indicating proper system operation. Checked unit level using precision spirit level tool and confirmed proper horizontal alignment of equipment for optimal drainage and performance. All components inspected showed normal operating condition with no defects requiring correction under warranty coverage.
Performed warranty inspection and leveling service on HVAC cooling unit. Examined evaporator coil assembly and verified heat exchanger fins were clean and free of debris. Noted condensation present on metal housing, indicating proper system operation. Checked unit level using precision spirit level tool and confirmed proper horizontal alignment of equipment for optimal drainage and performance. All components inspected showed normal operating condition with no defects requiring correction under warranty coverage.
Makinze C.
Makinze C. Checked in
Performed warranty inspection and leveling service on HVAC cooling unit. Examined evaporator coil assembly and verified heat exchanger fins were clean and free of debris. Noted condensation present on metal housing, indicating proper system operation. Checked unit level using precision spirit level tool and confirmed proper horizontal alignment of equipment for optimal drainage and performance. All components inspected showed normal operating condition with no defects requiring correction under warranty coverage.
OAK CREEK, WI 53154
# HVAC Install - System Start Up

Completed installation and system start-up procedures for new HVAC equipment. Connected manifold gauge set to service ports and verified refrigerant pressures on both high and low sides of the system. Measured operating pressures using Yellow Jacket diagnostic gauges, confirming readings were within manufacturer specifications for proper system operation. Inspected condenser coil and heat exchanger components for proper installation and clearance. Verified all electrical connections and wiring were secure and properly terminated. System tested and confirmed operational with appropriate superheat and subcooling values achieved.
# HVAC Install - System Start Up

Completed installation and system start-up procedures for new HVAC equipment. Connected manifold gauge set to service ports and verified refrigerant pressures on both high and low sides of the system. Measured operating pressures using Yellow Jacket diagnostic gauges, confirming readings were within manufacturer specifications for proper system operation. Inspected condenser coil and heat exchanger components for proper installation and clearance. Verified all electrical connections and wiring were secure and properly terminated. System tested and confirmed operational with appropriate superheat and subcooling values achieved.
Adriel H.
Adriel H. Checked in
# HVAC Install - System Start Up Completed installation and system start-up procedures for new HVAC equipment. Connected manifold gauge set to service ports and verified refrigerant pressures on both high and low sides of the system. Measured operating pressures using Yellow Jacket diagnostic gauges, confirming readings were within manufacturer specifications for proper system operation. Inspected condenser coil and heat exchanger components for proper installation and clearance. Verified all electrical connections and wiring were secure and properly terminated. System tested and confirmed operational with appropriate superheat and subcooling values achieved.
Oak Creek, WI 53154
Oak Creek, WI - Completed scheduled HVAC maintenance on residential gas furnace system. Performed comprehensive inspection of internal components including blower motor assembly, gas valve connections, electrical wiring, and ductwork connections. All components found operating within normal parameters; system tested and confirmed functioning properly.
Adriel H.
Adriel H. Checked in
Completed scheduled HVAC maintenance on residential gas furnace system. Performed comprehensive inspection of internal components including blower motor assembly, gas valve connections, electrical wiring, and ductwork connections. All components found operating within normal parameters; system tested and confirmed functioning properly.
Oak Creek, WI 53154
Completed full HVAC system installation including indoor air handler unit and outdoor condensing unit. Installed new air handler in mechanical room with proper copper refrigerant line connections and black insulated line set, integrated silver metallic supply ductwork for air distribution throughout the residence. Mounted outdoor condensing unit on exterior with appropriate clearances from building, installed white PVC condensate drain line with proper pitch and termination, added splash guard at grade level to prevent water pooling. System tested and verified operational with all components functioning within manufacturer specifications.
Completed full HVAC system installation including indoor air handler unit and outdoor condensing unit. Installed new air handler in mechanical room with proper copper refrigerant line connections and black insulated line set, integrated silver metallic supply ductwork for air distribution throughout the residence. Mounted outdoor condensing unit on exterior with appropriate clearances from building, installed white PVC condensate drain line with proper pitch and termination, added splash guard at grade level to prevent water pooling. System tested and verified operational with all components functioning within manufacturer specifications.
Juan C.
Juan C. Checked in
Completed full HVAC system installation including indoor air handler unit and outdoor condensing unit. Installed new air handler in mechanical room with proper copper refrigerant line connections and black insulated line set, integrated silver metallic supply ductwork for air distribution throughout the residence. Mounted outdoor condensing unit on exterior with appropriate clearances from building, installed white PVC condensate drain line with proper pitch and termination, added splash guard at grade level to prevent water pooling. System tested and verified operational with all components functioning within manufacturer specifications.
Oak Creek, WI 53154
# Plumbing Install - Outdoor Spigot/Shower

Installed new garbage disposal unit beneath kitchen sink, including complete mounting assembly with stainless steel flange connection to sink drain. Connected disposal to existing drainage system using white PVC P-trap configuration and secured all pipe joints. Ran electrical connection from disposal unit to cabinet-mounted outlet and verified proper power supply. Installed black corrugated discharge hose for drainage routing and ensured all connections were watertight and secure.
# Plumbing Install - Outdoor Spigot/Shower

Installed new garbage disposal unit beneath kitchen sink, including complete mounting assembly with stainless steel flange connection to sink drain. Connected disposal to existing drainage system using white PVC P-trap configuration and secured all pipe joints. Ran electrical connection from disposal unit to cabinet-mounted outlet and verified proper power supply. Installed black corrugated discharge hose for drainage routing and ensured all connections were watertight and secure.
Gabriel S.
Gabriel S. Checked in
# Plumbing Install - Outdoor Spigot/Shower Installed new garbage disposal unit beneath kitchen sink, including complete mounting assembly with stainless steel flange connection to sink drain. Connected disposal to existing drainage system using white PVC P-trap configuration and secured all pipe joints. Ran electrical connection from disposal unit to cabinet-mounted outlet and verified proper power supply. Installed black corrugated discharge hose for drainage routing and ensured all connections were watertight and secure.
Oak Creek, WI 53154
Completed installation of Lennox furnace unit in residential basement utility space. Unit was positioned on concrete floor with protective foam padding, connected to existing ductwork system including metal supply ducts and white PVC condensate drain lines. During installation, identified existing water infiltration issues at wall-to-floor junction near piping penetrations, evidenced by discoloration and moisture damage to substrate materials. All mechanical connections, venting, and drain lines were properly secured with appropriate mounting brackets and fittings to ensure code-compliant operation.
Completed installation of Lennox furnace unit in residential basement utility space. Unit was positioned on concrete floor with protective foam padding, connected to existing ductwork system including metal supply ducts and white PVC condensate drain lines. During installation, identified existing water infiltration issues at wall-to-floor junction near piping penetrations, evidenced by discoloration and moisture damage to substrate materials. All mechanical connections, venting, and drain lines were properly secured with appropriate mounting brackets and fittings to ensure code-compliant operation.
Makinze C.
Makinze C. Checked in
Completed installation of Lennox furnace unit in residential basement utility space. Unit was positioned on concrete floor with protective foam padding, connected to existing ductwork system including metal supply ducts and white PVC condensate drain lines. During installation, identified existing water infiltration issues at wall-to-floor junction near piping penetrations, evidenced by discoloration and moisture damage to substrate materials. All mechanical connections, venting, and drain lines were properly secured with appropriate mounting brackets and fittings to ensure code-compliant operation.
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.