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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon223
    Verified heating oil services reviews

Find Heating oil pros in Warrenton

Avatar for SwiftPro Heating, Cooling & Plumbing

SwiftPro Heating, Cooling & Plumbing

4.83(
24
)
Approved Pro

SwiftPro Heating, Cooling & Plumbing

4.83(
24
)
Approved Pro
Super Service Award
Customers say: Quick response
476 local quotes requested
1 years of experience

SwiftPro is a local, family-owned Heating, Cooling and Plumbing company proudly serving Fairfax and Northern Virginia. Our expert technicians provide efficient solutions for heating, cooling, water heaters, and more—with clear communication, upfront pricing, and respect for your time and home. Whether it’s a quick AC repair or full system install, wether it's Trane, Goodman, American Standard or any other brand; we deliver fast, reliable service rooted in family values. Call us now! Or send a message!

"The Company is untrustworthy with their Prices. They offer no detailed Invoice, and their charges are A LOT more expensive than other Companies, to the point where I had to file a formal complaint with the BBB. Never again."

Ramon E on December 2025

SwiftPro is a local, family-owned Heating, Cooling and Plumbing company proudly serving Fairfax and Northern Virginia. Our expert technicians provide efficient solutions for heating, cooling, water heaters, and more—with clear communication, upfront pricing, and respect for your time and home. Whether it’s a quick AC repair or full system install, wether it's Trane, Goodman, American Standard or any other brand; we deliver fast, reliable service rooted in family values. Call us now! Or send a message!

"The Company is untrustworthy with their Prices. They offer no detailed Invoice, and their charges are A LOT more expensive than other Companies, to the point where I had to file a formal complaint with the BBB. Never again."

Ramon E on December 2025


Avatar for Appleton Campbell

Appleton Campbell

4.72(
303
)
Approved Pro

Appleton Campbell

4.72(
303
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
123 local quotes requested

Call today for FREE Estimates for new heating and cooling systems, water heaters, water filtration and electrical panels and whole home generators. Founded in 1976 by Jim Appleton, grandfather of current President Mike Appleton—Appleton Campbell has remained a locally owned and operated business dedicated to their customers, employees and communities. Honesty, integrity, and experience are the cornerstones on which Appleton Campbell was built and on which it continues to grow today. Committed to outstanding customer service Appleton Campbell provides: - Highly trained technicians who treat you and your home with courtesy and respect - Flat-rate pricing—the price you are quoted up front is the price you will pay—there are no surprises - Guaranteed service and customer satisfaction

"The install young men, Joseph and Datrel were pleasant. Looked like they enjoyed their work. But, good grief, broke siding and given an invoice at close of job of a stranger. How do I know the correct unit was installed? If the office can't pay attention to detail, how do we trust the techs pay attention to detail during installation?"

Angelyn R on November 2025

Call today for FREE Estimates for new heating and cooling systems, water heaters, water filtration and electrical panels and whole home generators. Founded in 1976 by Jim Appleton, grandfather of current President Mike Appleton—Appleton Campbell has remained a locally owned and operated business dedicated to their customers, employees and communities. Honesty, integrity, and experience are the cornerstones on which Appleton Campbell was built and on which it continues to grow today. Committed to outstanding customer service Appleton Campbell provides: - Highly trained technicians who treat you and your home with courtesy and respect - Flat-rate pricing—the price you are quoted up front is the price you will pay—there are no surprises - Guaranteed service and customer satisfaction

"The install young men, Joseph and Datrel were pleasant. Looked like they enjoyed their work. But, good grief, broke siding and given an invoice at close of job of a stranger. How do I know the correct unit was installed? If the office can't pay attention to detail, how do we trust the techs pay attention to detail during installation?"

Angelyn R on November 2025


Avatar for JW Home Improvement

JW Home Improvement

4.39(
5,504
)
Approved Pro

JW Home Improvement

4.39(
5,504
)
Approved Pro
Customers say: Quality work
1820 local quotes requested
24 years of experience

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025

JWHI provides world-class customer service with consistent and superior workmanship. We strive to be the trusted market leader in the home improvement industry. Proudly, we are Super Service Award Winner for over a decade, and we plan to keep that streak going! Contact us today to discuss your next handyman or remodeling project. Our mission is to provide you with a happy home improvement experience!

"Made appointment for them to come over for an estimate (which they charge for) between 9-12 today. They are a no show. I wasted the whole morning on them. DO NOT recommend."

Jeff H on October 2025


Avatar for Relax HVAC, Inc.

Relax HVAC, Inc.

5.00(
28
)
Approved Pro

Relax HVAC, Inc.

5.00(
28
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
111 local quotes requested

Relax HVAC, Inc. is a fully insured and licensed heating and air conditioning firm in Ashburn, Virginia, composed of Master Technicians led by Kamal. He and his team provide round-the-clock emergency services for residential and commercial customers, including those in the Iranian, Arabic, and Palestinian communities. With more than 25 years of experience in providing air conditioning services, Kamal takes pride in making customers feel good about his company. He does this by giving them quality and honest services at great prices. His services are approved and recommended by the Loudoun County Fire Department.

"My AC failed and I had limited time to find a good solution, I made a phone call to Relax HVAC based on the online reviews and it was a great decision. Nasser came to check the situation, he gave a very detailed and comprehensive overview of the situation and provided with the options I had. I decided to replace the unit, Nasser went above and beyond to find a unit delivery service but there was nothing available over the weekend so this gentleman went for unit pick up himself and finished the installation within a day from my initial call. Moreover, the provided price was very reasonable.I can't be more happy with the outcome and highly recommend Relax HVAC"

Navid P on July 2024

Relax HVAC, Inc. is a fully insured and licensed heating and air conditioning firm in Ashburn, Virginia, composed of Master Technicians led by Kamal. He and his team provide round-the-clock emergency services for residential and commercial customers, including those in the Iranian, Arabic, and Palestinian communities. With more than 25 years of experience in providing air conditioning services, Kamal takes pride in making customers feel good about his company. He does this by giving them quality and honest services at great prices. His services are approved and recommended by the Loudoun County Fire Department.

"My AC failed and I had limited time to find a good solution, I made a phone call to Relax HVAC based on the online reviews and it was a great decision. Nasser came to check the situation, he gave a very detailed and comprehensive overview of the situation and provided with the options I had. I decided to replace the unit, Nasser went above and beyond to find a unit delivery service but there was nothing available over the weekend so this gentleman went for unit pick up himself and finished the installation within a day from my initial call. Moreover, the provided price was very reasonable.I can't be more happy with the outcome and highly recommend Relax HVAC"

Navid P on July 2024


Avatar for Tito Ramos Home Improvement

Tito Ramos Home Improvement

4.95(
21
)
Approved Pro

Tito Ramos Home Improvement

4.95(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
142 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Excellent work. Great communication and timely response. Very knowledgeable. Would hire again without hesitation."

Yasmin L on January 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Excellent work. Great communication and timely response. Very knowledgeable. Would hire again without hesitation."

Yasmin L on January 2025


Avatar for Modern Mechanical

Modern Mechanical

4.33(
43
)
Approved Pro

Modern Mechanical

4.33(
43
)
Approved Pro
Customers say: Super punctual
102 local quotes requested
16 years of experience

Modern Mechanical is your trusted partner for all your heating and A/C needs in Washington D.C. With our Virginia Class A License 2705 134143A, we are committed to providing top-notch service and expertise. Contact us today for all your home comfort needs.

"I have been a customer for a very long time and this scheduled maintenance and dryer vent cleaning was done by Cesar. I have to say he is one very thorough technician and I was very pleased with his inspection and vent cleaning. His service was so different than some of the ones I've had before. I even had one inspector tell me he didn't need to check in my attic which houses one of our two units. Let me tell you about Cesar, he even cleaned up behind my dryer for me. This is something that is rare in customer service. I have my HVAC seasonally maintenanced and never had a inspector be as thorough as him. The pictures he took and explained to me and the one problem he found that no other inspector had found in all this time. I tried to spare him from the attic heat for the repair and have him return on another day in the morning but he didn't mind going back in there to fix the problem for us although it was in the dead heat of the day. I just hope the company sees this review and knows what a good technician they have in Cesar."

Deborah M on August 2023

Modern Mechanical is your trusted partner for all your heating and A/C needs in Washington D.C. With our Virginia Class A License 2705 134143A, we are committed to providing top-notch service and expertise. Contact us today for all your home comfort needs.

"I have been a customer for a very long time and this scheduled maintenance and dryer vent cleaning was done by Cesar. I have to say he is one very thorough technician and I was very pleased with his inspection and vent cleaning. His service was so different than some of the ones I've had before. I even had one inspector tell me he didn't need to check in my attic which houses one of our two units. Let me tell you about Cesar, he even cleaned up behind my dryer for me. This is something that is rare in customer service. I have my HVAC seasonally maintenanced and never had a inspector be as thorough as him. The pictures he took and explained to me and the one problem he found that no other inspector had found in all this time. I tried to spare him from the attic heat for the repair and have him return on another day in the morning but he didn't mind going back in there to fix the problem for us although it was in the dead heat of the day. I just hope the company sees this review and knows what a good technician they have in Cesar."

Deborah M on August 2023


Avatar for Powerhouse Homeimprovement

Powerhouse Homeimprovement

5.00(
7
)
Approved Pro

Powerhouse Homeimprovement

5.00(
7
)
Approved Pro
Customers say: Quick response
61 local quotes requested
5 years of experience

Quality work and attention to detail and affordable prices. We are dedicated to providing good customer service to homeowners so that they are happy. Please see some of the services we offer below and call -or- click to schedule a free estimate today!

"the contractor was on time, very polite, very professional, had all the tools required for the job, and when he finished, cleaned up after his work. I would totally recommend him for his excellent work."

R M on November 2025

Quality work and attention to detail and affordable prices. We are dedicated to providing good customer service to homeowners so that they are happy. Please see some of the services we offer below and call -or- click to schedule a free estimate today!

"the contractor was on time, very polite, very professional, had all the tools required for the job, and when he finished, cleaned up after his work. I would totally recommend him for his excellent work."

R M on November 2025


F.H Furr Fredericksburg

New on AngiNew on Angi
Approved Pro

F.H Furr Fredericksburg

New on AngiNew on Angi
Approved Pro
35 local quotes requested

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.


F.H. Furr Ashburn

New on AngiNew on Angi
Approved Pro

F.H. Furr Ashburn

New on AngiNew on Angi
Approved Pro
29 local quotes requested

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.


Avatar for Zee Servicing LLC

Zee Servicing LLC

5.00(
1
)
Approved Pro

Zee Servicing LLC

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
48 local quotes requested

We are specialized in all type of maintenance, repairs, and remodeling, plumbing, drywall, painting and carpentry projects in DMV area. Our expert handyman are always ready around the clock to handle all of your needs on timely and professional manner. Zee Servicing LLC also do basement framing, kitchen and bathroom remodeling too.

"Did work in a timely fashion."

Roz S on July 2025

We are specialized in all type of maintenance, repairs, and remodeling, plumbing, drywall, painting and carpentry projects in DMV area. Our expert handyman are always ready around the clock to handle all of your needs on timely and professional manner. Zee Servicing LLC also do basement framing, kitchen and bathroom remodeling too.

"Did work in a timely fashion."

Roz S on July 2025

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Heating Oil questions, answered by experts

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

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.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

Yes, geothermal heat pumps are worth the money. You can save about 70% on heating costs in the winter and around 50% on cooling costs in the summer with a geothermal heat pump compared to a traditional HVAC system. Over time, your savings on monthly utilities will pay for the cost of the geothermal heat pump installation. If you have an incredibly small yard, however, you may not have enough space for this type of system.

Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.

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