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TRUSTED BY SULLIVAN, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon47
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Sullivan, NH

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

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

Last update on January 05, 2026

Find Heating and air conditioning pros in Sullivan

Avatar for Minuteman Heating Cooling Refrigeration, LLC

Minuteman Heating Cooling Refrigeration, LLC

4.95(
50
)
•Approved Pro

Minuteman Heating Cooling Refrigeration, LLC

4.95(
50
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
5 years of experience

With over 32 years experience in the HVAC industry, MINUTEMAN HEATING COOLING REFRIGERATION LLC is your industry expert in Sullivan County and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a veteran and family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Jeff did an excellent job. I could not be happier. He determined the issue and installed new parts and my A/C was up and running during this summer heat wave. He took the time to explain what was going on with the unit and what needed to be fixed. Very friendly and honest. Highly recommended."

Don B on July 2025

With over 32 years experience in the HVAC industry, MINUTEMAN HEATING COOLING REFRIGERATION LLC is your industry expert in Sullivan County and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a veteran and family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Jeff did an excellent job. I could not be happier. He determined the issue and installed new parts and my A/C was up and running during this summer heat wave. He took the time to explain what was going on with the unit and what needed to be fixed. Very friendly and honest. Highly recommended."

Don B on July 2025

Avatar for Gotme Under Pressure ?, LLC

Gotme Under Pressure ?, LLC

4.49(
580
)
•Approved Pro

Gotme Under Pressure ?, LLC

4.49(
580
)
•Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
39 years of experience

Gotme under pressure? LLC IS A Plumbing, Heating & Gasfitting, Drain Cleaning professional in your area. We will meet all of your plumbing needs. We take the pressure off all your plumbing issues. As our company is built off of honesty, integrity and leadership, this is what you can expect.

"Great work with the inspection. Will go back for future plumbing work"

Antonio S on September 2022

Gotme under pressure? LLC IS A Plumbing, Heating & Gasfitting, Drain Cleaning professional in your area. We will meet all of your plumbing needs. We take the pressure off all your plumbing issues. As our company is built off of honesty, integrity and leadership, this is what you can expect.

"Great work with the inspection. Will go back for future plumbing work"

Antonio S on September 2022

Monadnock Electric

4.87(
19
)
•Approved Pro

Monadnock Electric

4.87(
19
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 years of experience

Monadnock Electric 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 40 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!

"Matthew and Austin from Monadnock Electric did an outstanding job for our church. They installed 2 Ethernet cables each about 280 feet in length so that we received direct connection to the Internet. They were neat and careful and made sure our computer and live streaming our services was working. They were very helpful. Highly recommend."

Edward & Claire J on November 2024

Monadnock Electric 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 40 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!

"Matthew and Austin from Monadnock Electric did an outstanding job for our church. They installed 2 Ethernet cables each about 280 feet in length so that we received direct connection to the Internet. They were neat and careful and made sure our computer and live streaming our services was working. They were very helpful. Highly recommend."

Edward & Claire J on November 2024

Avatar for Walshco LLC

Walshco LLC

5.00(
9
)
•Approved Pro

Walshco LLC

5.00(
9
)
•Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"

Alfred P on December 2025

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"

Alfred P on December 2025

JP Master Plumbing & Air Conditioning

4.75(
14
)
•Approved Pro

JP Master Plumbing & Air Conditioning

4.75(
14
)
•Approved Pro
Customers say: Terrific value
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
22 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They replaced our hot water tank. Nice neat job, fair price and excellent customer service. "

Dave D on October 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They replaced our hot water tank. Nice neat job, fair price and excellent customer service. "

Dave D on October 2025

Avatar for A2K Electric, LLC

A2K Electric, LLC

5.00(
5
)
•Approved Pro

A2K Electric, LLC

5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients; we take great care to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Job was absolutely fantastic. Will be hiring them again with my next project."

Brenda N on August 2023

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients; we take great care to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Job was absolutely fantastic. Will be hiring them again with my next project."

Brenda N on August 2023

Avatar for Sunup Solar LLC

Sunup Solar LLC

5.00(
5
)
•Approved Pro

Sunup Solar LLC

5.00(
5
)
•Approved Pro
6 years of experience
Free onsite estimate

Transitioning to solar energy might seem like a daunting task, but with Sunup Solar, we've got you covered from start to finish. Our in-house team handles every step of the process, ensuring a smooth experience when setting up rooftop or ground-mounted solar panels.

Transitioning to solar energy might seem like a daunting task, but with Sunup Solar, we've got you covered from start to finish. Our in-house team handles every step of the process, ensuring a smooth experience when setting up rooftop or ground-mounted solar panels.

Avatar for Gary Jackson Heating Services

Gary Jackson Heating Services

4.38(
13
)
•Approved Pro

Gary Jackson Heating Services

4.38(
13
)
•Approved Pro
Customers say: Quick response
20 years of experience
Emergency services offered

Gary Jackson Heating Services is family-owned and operated right here in Cheshire County, NH. Since our company opened its doors in 2006, we’ve treated every customer like they were a part of our family. Other companies may offer similar services, but our services are the best, and come with a personal touch. We specialize in oil and propane burner service & installation as well as air conditioning servie & installation in the Cheshire County area. We are fully licensed and insured in the State of New Hampshire and EPA Lead-Safe certified. Our philosophy is delivering honest and respectful service while exceeding the customer’s expectations. We have over 40 years of combined experience providing seasonal tune-ups, repairs to existing oil/propane furnaces, installation of energy efficient oil/propane furnaces, and repairs/installations of oil/propane/electric hot water heaters. We also install and repair solar panels.

"They were friendly, prompt, and diagnosed the problem to a complicated system 2000 boiler."

Dana H on July 2025

Gary Jackson Heating Services is family-owned and operated right here in Cheshire County, NH. Since our company opened its doors in 2006, we’ve treated every customer like they were a part of our family. Other companies may offer similar services, but our services are the best, and come with a personal touch. We specialize in oil and propane burner service & installation as well as air conditioning servie & installation in the Cheshire County area. We are fully licensed and insured in the State of New Hampshire and EPA Lead-Safe certified. Our philosophy is delivering honest and respectful service while exceeding the customer’s expectations. We have over 40 years of combined experience providing seasonal tune-ups, repairs to existing oil/propane furnaces, installation of energy efficient oil/propane furnaces, and repairs/installations of oil/propane/electric hot water heaters. We also install and repair solar panels.

"They were friendly, prompt, and diagnosed the problem to a complicated system 2000 boiler."

Dana H on July 2025

Avatar for McGinley & Sons

McGinley & Sons

4.00(
20
)
•Approved Pro

McGinley & Sons

4.00(
20
)
•Approved Pro
Customers say: Terrific value
21 years of experience
Free onsite estimate

McGinley & Sons: Your trusted Heating and AC Repair experts in New Hampshire. We are a family owned & operated business, with no subcontractors. Our cost is determined by the job. Contact us today!

"Bill was willing to install a heat pump system that I purchased, even though his default was Bosch. His son and helper did the install over two days. It was getting late when they finished and the unit worked, although it whistled. I let Bill McGinley know but couldn't get them to come out to resolve the problem for over a week. Bill figured out that air was being sucked in between the top bottom front panels on the ACIQ central unit and did a workaround -- taping over it. The manufacturer ACIQ was no help in acknowledging that there was a problem with their product. I made a mistake paying on the basis of the quote rather then requiring an invoice. When I tried to apply for the NHSaves rebate, they wanted an invoice. Bill was not very responsive in sending me the invoice. He did when I told him NHSaves would be contacting him. But he was very accommodating in doing the work i wanted done instead of doing what he was used to doing."

Tom A on December 2025

McGinley & Sons: Your trusted Heating and AC Repair experts in New Hampshire. We are a family owned & operated business, with no subcontractors. Our cost is determined by the job. Contact us today!

"Bill was willing to install a heat pump system that I purchased, even though his default was Bosch. His son and helper did the install over two days. It was getting late when they finished and the unit worked, although it whistled. I let Bill McGinley know but couldn't get them to come out to resolve the problem for over a week. Bill figured out that air was being sucked in between the top bottom front panels on the ACIQ central unit and did a workaround -- taping over it. The manufacturer ACIQ was no help in acknowledging that there was a problem with their product. I made a mistake paying on the basis of the quote rather then requiring an invoice. When I tried to apply for the NHSaves rebate, they wanted an invoice. Bill was not very responsive in sending me the invoice. He did when I told him NHSaves would be contacting him. But he was very accommodating in doing the work i wanted done instead of doing what he was used to doing."

Tom A on December 2025

Avatar for Easy A's Plumbing & Heating, LLC

Easy A's Plumbing & Heating, LLC

4.50(
3
)
•Approved Pro

Easy A's Plumbing & Heating, LLC

4.50(
3
)
•Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

Welcome to Easy A's Plumbing & Heating, LLC. We are excited to exceed your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!

"It took much longer than expected, but they were so much more reasonable price wise, it was worth the wait."

Paula S on July 2019

Welcome to Easy A's Plumbing & Heating, LLC. We are excited to exceed your expectations. As experts, we will handle your needs with the high quality expertise that your home or business deserves. We offer competitive prices, and customer satisfaction is our number one priority. Call us now!

"It took much longer than expected, but they were so much more reasonable price wise, it was worth the wait."

Paula S on July 2019

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Showing 1-10 of 143
Heating and Air Conditioning questions, answered by experts

HVAC quotes may be negotiable. It’s important to be upfront about what you need, your budget, and your expectations. However, your contractor must suggest repairs or the system they think is best for you, and those things may not be negotiable. So, when can you negotiate an HVAC quote? When installing a new system, you may not need to replace ductwork or install specialty items such as whole-home air purifiers. If your contractor is bidding on those items or others you don’t need or want, ask them for a quote on only the equipment and services you need.

While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.

Yes, it is possible. An electrical fire can break out if the compressor has inadequate ventilation. When it overheats but doesn't have a proper thermal cutout, this can cause the motor to short-circuit and catch fire. This risk is exacerbated if flammable materials, like dust and fallen leaves, are clogging the unit. The compressor overheating won't start a fire by itself, but poor maintenance and installation can increase the risk once it hits its breaking point and short-circuits.

No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.

A frosty expansion valve that isn't blowing out cool air is a sure sign that it’s time to replace it. It might also be time to replace the TXV valve if your AC unit switches off soon after turning on or if you have poor airflow in your home.

The Sullivan, NH homeowners’ guide to heating and air conditioning services

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

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