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Verified Reviews for Heating Oil Service pros in Warren, NH

*The Angi rating for Heating Oil Service companies in Warren, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

*The HomeAdvisor rating for Heating Oil Service companies in Warren, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

Last update on October 16, 2025

Find Heating oil pros in Warren

Avatar for Jeff Mackay Mechanical, LLC

Jeff Mackay Mechanical, LLC

PO Box 792
5.00(
6
)
•Approved Pro

Jeff Mackay Mechanical, LLC

PO Box 792
5.00(
6
)
•Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

With over 30 years of experience serving the Littleton Metro area, Jeff Mackay Mechanical, LLC, is the solution for all your HVAC needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We develop lasting relationships so that the next time service is needed there's no question on who to call. Satisfaction guaranteed! Call us today!

"He was professional, courteous, very knowledgeable. Took care of all our needs for the project. I highly recommend him. You did a outstanding job."

Howard P on September 2025

With over 30 years of experience serving the Littleton Metro area, Jeff Mackay Mechanical, LLC, is the solution for all your HVAC needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We develop lasting relationships so that the next time service is needed there's no question on who to call. Satisfaction guaranteed! Call us today!

"He was professional, courteous, very knowledgeable. Took care of all our needs for the project. I highly recommend him. You did a outstanding job."

Howard P on September 2025

Avatar for Fralick and Sons Electrical Services, LLC

Fralick and Sons Electrical Services, LLC

16 Robie Rd.
4.98(
28
)
•Approved Pro

Fralick and Sons Electrical Services, LLC

16 Robie Rd.
4.98(
28
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

With more than 17 yrs of experience, Fralick and Sons Electrical Services LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"They worked a very long day so that we would not be without power/water etc overnight. Very professional team"

Sarah S on September 2024

With more than 17 yrs of experience, Fralick and Sons Electrical Services LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"They worked a very long day so that we would not be without power/water etc overnight. Very professional team"

Sarah S on September 2024

Avatar for Pasquaney Mech LLC

Pasquaney Mech LLC

711 Whittemore Point Rd S
5.00(
8
)
•Approved Pro

Pasquaney Mech LLC

711 Whittemore Point Rd S
5.00(
8
)
•Approved Pro
24 local quotes requested
1 years of experience

Leveraging Ten Years Experience In HVAC Across The Eastern Seaboard. To Provide An Above Average Service To My Customers. Looking Forward To Helping With Your Heating and Air Conditioning Needs Fully Insured NH Gas License GF2011042 Please reach out to Tylor at 6032446331 or [email protected] After Hours and Emergency Services

"Yvette personable and knowledgeable. And honest. I had a great experience and would hire him again. I highly recommend him!"

Lisa O on August 2025

Leveraging Ten Years Experience In HVAC Across The Eastern Seaboard. To Provide An Above Average Service To My Customers. Looking Forward To Helping With Your Heating and Air Conditioning Needs Fully Insured NH Gas License GF2011042 Please reach out to Tylor at 6032446331 or [email protected] After Hours and Emergency Services

"Yvette personable and knowledgeable. And honest. I had a great experience and would hire him again. I highly recommend him!"

Lisa O on August 2025

Thurston Mechanical LLC

Bradford
No reviews yet

Thurston Mechanical LLC

Bradford
No reviews yet
Free onsite estimate

Here at Thurston Mechanical LLC we provide service to both propane and oil heating systems; As well as servicing air conditioning systems both ductless and central. Licensed in both VT and NH. We service central VT and the surrounding areas. We also service and maintain refrigeration equipment both residential and commercial. We also offer 24hr emergency service.

Here at Thurston Mechanical LLC we provide service to both propane and oil heating systems; As well as servicing air conditioning systems both ductless and central. Licensed in both VT and NH. We service central VT and the surrounding areas. We also service and maintain refrigeration equipment both residential and commercial. We also offer 24hr emergency service.

Irving Oil

190 Commerce Way
4.29(
7
)

Irving Oil

190 Commerce Way
4.29(
7
)
Customers say: Terrific value
101 years of experience

Additional phone numbers - (888) 273-5222, (888) 865-8800, (603) 559-8700, (506) 202-2000, (800) 561-2447, (877) 929-7678. Additional address - PO Box 1421, Saint John, New Brunswick E2L 4K1. Additional emails - [email protected], [email protected]. Additional DBAs - Highlands Fuel Delivery LLC, Irving Heating Oil, Irving Oil Co, Irving Oil Corp. Additional contact name - Sheldon R Illsley.

Additional phone numbers - (888) 273-5222, (888) 865-8800, (603) 559-8700, (506) 202-2000, (800) 561-2447, (877) 929-7678. Additional address - PO Box 1421, Saint John, New Brunswick E2L 4K1. Additional emails - [email protected], [email protected]. Additional DBAs - Highlands Fuel Delivery LLC, Irving Heating Oil, Irving Oil Co, Irving Oil Corp. Additional contact name - Sheldon R Illsley.

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.

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

A geothermal heat pump system will take about 10 years to pay for itself, and it has a life span of anywhere from about 25 to 50 years. Installing a geothermal heat pump will cost about $14,250 upfront, but it can reduce your energy bills by around 65% when compared to a conventional HVAC system.

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.

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

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