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TRUSTED BY THIENSVILLE, WI HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon93
    Verified heating oil services reviews

Find Heating oil pros in Thiensville

Avatar for Droegkamp Furnace Co

Droegkamp Furnace Co

4.90(
526
)
Approved Pro

Droegkamp Furnace Co

4.90(
526
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1877 years of experience

At Droegkamp Furnace Company, Inc. customer satisfaction is our number one priority. Please contact us for all of your HVAC needs, no matter how big or small. 18 employees. Uses subs for electrical work. 24 hour service. Free estimates. Financing available. Sorry we do not work on oil furnaces or boilers. Also we are not a plumbing contractor.

"Went great"

Jessica F on July 2022

At Droegkamp Furnace Company, Inc. customer satisfaction is our number one priority. Please contact us for all of your HVAC needs, no matter how big or small. 18 employees. Uses subs for electrical work. 24 hour service. Free estimates. Financing available. Sorry we do not work on oil furnaces or boilers. Also we are not a plumbing contractor.

"Went great"

Jessica F on July 2022


"Great communication, excellent recommendations and very geared towards our specific project"

Dan P on June 2025

Hometown Heating, Air & Electric is a home services contractor providing heating, ventilation, air conditioning (HVAC) and electric services. We are ready to help you meet your indoor comfort needs in Germantown and the neighboring communities.

"Great communication, excellent recommendations and very geared towards our specific project"

Dan P on June 2025


Avatar for Mendoza Drywall LLC

Mendoza Drywall LLC

4.92(
74
)
Approved Pro

Mendoza Drywall LLC

4.92(
74
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2020 years of experience

We specialize in drywall and sheetrock installs, repairs, finishing, textures, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Mendoza did an amazing job. Cirilo and his crew were extremely professional and polite. They were able to work miracles, making my kitchen ceiling and walls looking new again. Will be highly recommending him to anyone in need of his services. And will be a repeat client whenever I am in need again. Thank you. Awesome job."

Jeff M on December 2025

We specialize in drywall and sheetrock installs, repairs, finishing, textures, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Mendoza did an amazing job. Cirilo and his crew were extremely professional and polite. They were able to work miracles, making my kitchen ceiling and walls looking new again. Will be highly recommending him to anyone in need of his services. And will be a repeat client whenever I am in need again. Thank you. Awesome job."

Jeff M on December 2025


Avatar for Burant Heating & Air Conditioning, LLC

Burant Heating & Air Conditioning, LLC

4.95(
41
)
Approved Pro

Burant Heating & Air Conditioning, LLC

4.95(
41
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2000 years of experience

Burant Heating & Air Conditioning is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Robert was great at getting my boiler to fire up! He found a wire that was disconnected & capped. I think that this was done, when 1 of the other pros you have listed cleaned the boiler 3 months ago. Robert connected the wire and the boiler started!"

Grail C on December 2025

Burant Heating & Air Conditioning is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Robert was great at getting my boiler to fire up! He found a wire that was disconnected & capped. I think that this was done, when 1 of the other pros you have listed cleaned the boiler 3 months ago. Robert connected the wire and the boiler started!"

Grail C on December 2025


Avatar for KETTLE MORAINE HEATING & AIR CONDITIONING LLC

KETTLE MORAINE HEATING & AIR CONDITIONING LLC

4.78(
129
)
Approved Pro

KETTLE MORAINE HEATING & AIR CONDITIONING LLC

4.78(
129
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1987 years of experience

Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing

"Technician Jim was not impressive. Was not confident when answering the questions I asked. Very contradicting.. Tried to sell product for items that were not even in need of repair. Spoke negatively about the company and made excuses as to why he could not perform his job due to lack of information from dispatch or technician manager. Said he would follow up, I never heard from him. Blessing to me, I decided to go with another HVAC company. I typically would not put names out there, but please be careful if you get this gentleman as a technician."

Lindsey M on December 2022

Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide our customers with peace of mind and 5-star service. We specialize in air conditioning, furnaces, boilers, ductless mini-splits, solar, backup generators, radon mitigation, plumbing and electrical services. Additionally, we are the region’s premier installer of Lennox energy-efficient heating and cooling systems and Mitsubishi ductless mini-split systems. With an unwavering commitment to our customers, you can count on us to deliver the personalized care you deserve. • 24/7 Emergency Service • Tune-Ups/Maintenance Plans • 0% Financing

"Technician Jim was not impressive. Was not confident when answering the questions I asked. Very contradicting.. Tried to sell product for items that were not even in need of repair. Spoke negatively about the company and made excuses as to why he could not perform his job due to lack of information from dispatch or technician manager. Said he would follow up, I never heard from him. Blessing to me, I decided to go with another HVAC company. I typically would not put names out there, but please be careful if you get this gentleman as a technician."

Lindsey M on December 2022


Avatar for ThermaTek Heating and Air

ThermaTek Heating and Air

4.73(
324
)
Approved Pro

ThermaTek Heating and Air

4.73(
324
)
Approved Pro
Super Service Award
Customers say: Quick response
2018 years of experience
Free onsite estimate

Welcome to ThermaTek Heating and Air. We are excited to exceed your expectations! As industry professionals, we will handle all your needs with the high-quality expertise and attention to detail your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us today for your free estimate!

"Within an hour Therma Tek responded and had our unit fix! Fast, reliable and friendly. Highly recommend! Jeremy and Darren are awesome!"

Michael P on December 2025

Welcome to ThermaTek Heating and Air. We are excited to exceed your expectations! As industry professionals, we will handle all your needs with the high-quality expertise and attention to detail your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us today for your free estimate!

"Within an hour Therma Tek responded and had our unit fix! Fast, reliable and friendly. Highly recommend! Jeremy and Darren are awesome!"

Michael P on December 2025


Air Eez Hvac/r

4.79(
51
)
Approved Pro

Air Eez Hvac/r

4.79(
51
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2009 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all our projects no matter how big or small. We are experts in our trade and will always keep you educated on your task or project. We look forward to earning your business!

"He was very prompt, professional, and courteous."

James S on December 2019

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all our projects no matter how big or small. We are experts in our trade and will always keep you educated on your task or project. We look forward to earning your business!

"He was very prompt, professional, and courteous."

James S on December 2019


Avatar for Napravnik Construction, LLC

Napravnik Construction, LLC

4.92(
57
)
Approved Pro

Napravnik Construction, LLC

4.92(
57
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
1998 years of experience

Here, at Napravnik Construction, LLC, we have expanded our business service area from the Chicago Western Suburbs North to Milwaukee metro area and pride ourselves with reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Came out quickly and added a gate to our fence for what I thought was a fair price. "

Gina C on October 2025

Here, at Napravnik Construction, LLC, we have expanded our business service area from the Chicago Western Suburbs North to Milwaukee metro area and pride ourselves with reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Came out quickly and added a gate to our fence for what I thought was a fair price. "

Gina C on October 2025


Avatar for Guardian Heating and Cooling, LLC

Guardian Heating and Cooling, LLC

4.97(
62
)
Approved Pro

Guardian Heating and Cooling, LLC

4.97(
62
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1998 years of experience

At Guardian Heating and Cooling, LLC we offer a full range of heating and cooling installations, all under one roof. Including, Furnace, A/C, Boilers, Hydronic Systems, Snow Melt Driveways and Walkways. We offer you, our valued customers, expertise and genuine care. We value you as a customer and want to prove to you our skill, integrity, and compassion as a heating and cooling service provider. If you you’re operating an inefficient heating or cooling system that breaks down a lot, it’s likely that it’s going to break down again. Let us help you select the best Heating and Air Conditioning solution for your home. We are dedicated to getting the job done right at the lowest possible price. Best Regards, Guardian Heating and Cooling LLC

"He was very knowledgeable. Shared information on costs and explained process very clearly."

Mary K on May 2021

At Guardian Heating and Cooling, LLC we offer a full range of heating and cooling installations, all under one roof. Including, Furnace, A/C, Boilers, Hydronic Systems, Snow Melt Driveways and Walkways. We offer you, our valued customers, expertise and genuine care. We value you as a customer and want to prove to you our skill, integrity, and compassion as a heating and cooling service provider. If you you’re operating an inefficient heating or cooling system that breaks down a lot, it’s likely that it’s going to break down again. Let us help you select the best Heating and Air Conditioning solution for your home. We are dedicated to getting the job done right at the lowest possible price. Best Regards, Guardian Heating and Cooling LLC

"He was very knowledgeable. Shared information on costs and explained process very clearly."

Mary K on May 2021


Paris Stoneworks Renovations and Repairs

4.74(
31
)
Approved Pro

Paris Stoneworks Renovations and Repairs

4.74(
31
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2019 years of experience

Theo's HVAC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Theo is the best!! He is fast and efficient. I have had home do several projects around my home. He also has helped my grandfather fix numerous things in his home."

Angela C on April 2024

Theo's HVAC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Theo is the best!! He is fast and efficient. I have had home do several projects around my home. He also has helped my grandfather fix numerous things in his home."

Angela C on April 2024

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Heating Oil questions, answered by experts

You need to service an HVAC system about twice per year, with a service including an inspection and basic maintenance. It’s best to schedule maintenance in the spring (after the furnace has been running and before the AC kicks on) and in the fall (after the AC worked hard all summer and before winter’s first chill arrives). 

Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. HVAC maintenance costs around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.

Regular inspections, loop flushing, and checking heat exchangers help extend system lifespan.

Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

It’s a better use of energy (and your money) NOT to run an ERV system all the time. Most experts recommend that you cycle your ERV system on and off throughout the year. However, the recommended advice could change based on your climate, the number of people in your home, the size and style of your home, and your heating and cooling system. Contact a local pro for more specific advice.

The homeowners guide to home care is here

From average costs to expert advice, get all the answers you need to get your job done.