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TRUSTED BY FREMONT, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon174
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Fremont, 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 Fremont, 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 October 18, 2026

Top-Rated Heating and air conditioning pros in Fremont - Updated Nov 2026

Avatar for Kevin Russo HVAC
Kevin Russo HVAC
4.9(
71
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceGas Furnace / Forced Air Heating System - Repair+2 more

Serving Fremont, NH and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kevin is very responsive and addressed all of my HVAC issues on very short notice. He is professional and did great work. I would highly recommend him and will use him again in the future."
HVAC INSTALLS
Samsung
HVAC INSTALLS
York condenser
HVAC INSTALLS

+2

Response time2 hrs
Response rate88%
Recommended by97%of homeowners
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Avatar for Freedom Air Mechanical
Freedom Air Mechanical
4.8(
14
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Fremont, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Repairs were excellent and thorough "even well documented". The tech found units low on coolant. He identified and repaired multiple refrigerant leak points. I have dealt with many HVAC contractors over the years and Freedom Air Mechanical is one of the best. I highly recommend."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+36

Response time1 day
Recommended by92%of homeowners
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Avatar for Kingdom Cooling
Kingdom Cooling
4.9(
53
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+10 more

Serving Fremont, NH and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I hired Kingdom Cooling to replace my old oil boiler. They came out quickly, gave me an excellent price and overcame several obstacles that cropped up with very little effort on my part. Gerry was helpful enough to cart away some of the mess that had been left over from another plumber as well. TL;DR Excellent Price, Quality Service. I will be hiring Kingdom Cooling for my plumbing needs moving forward."
AC4
AC3
AC2
AC1
AC2

+67

Response time3 hrs
Response rate97%
4 neighbors recently requested a quote
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Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
44
)
Air Ducts & Vents - Clean

Serving Fremont, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Great !! Gabriel was on time and went right to work. He took pictures of duct work before and after. He supplied my wife and I N95 masks to wear during the cleaning keeping us safe. Gabriel was a true professional."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
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Avatar for Granite State Refrigeration Services LLC
Granite State Refrigeration Services LLC
5.0(
10
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or Replace+5 more

Serving Fremont, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Amazing service! very knowledgeable, clean work and super respectful! if you find yourself needing any help when it comes to your heating or Air Conditioning system, call Keenan without a doubt."
Living Room Unit a 12K BTU
The 2 Zone Outdoor Unit
2 Outdoor Units
Heating & A/C Project
Heating & A/C Project

+56

Response time5 days
Response rate100%
4 neighbors recently requested a quote
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Avatar for Ethical Home Pro, LLC
Ethical Home Pro, LLC
4.9(
38
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceGas Boiler or Radiator Heating System - Install+9 more

Serving Fremont, NH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I called to make on appointment for an estimate to replace our 30 year old boiler. The appointment was on my day off a few days later. Mike showed up on time. He inspected the boiler and the house, asked questions about the house and what I wanted. Gave me advice on what I wanted to do. Mike e-mailed me three quotes a few day later, with specs on the boilers. Called me a few days after that to see if I had questions. I made the appointment for the install, again, on my schedule. Mike and his crew showed up on time. We went over what was expected, and his crew was off the the races. They removed the old boiler and installed the new boiler as promised. Mike and his crew were very professional at all times. Highly recommend Ethical Home pro."
Condenser
Condenser
Air grill ceiling
Air grill ceiling
Air grill ceiling

+172

Response time6 hrs
Response rate95%
Recommended by100%of homeowners
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Avatar for Duct Kings
Duct Kings
4.7(
410
)
Air Ducts & Vents - Clean

Serving Fremont, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"Duct Kings came to clean out a dryer vent. They were very quick with their work and did a great job. They even documented the job with before and after pictures and videos which we appreciated. I would highly recommend if you're looking for a fast and reliable duct company"
Additional Photos
Response time2 days
Response rate100%
16 neighbors recently requested a quote
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Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
89
)
Ducts & Vents - Install or ReplaceBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Fremont, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"Palmer Gas & Oil just did an entire replacement of the 20-year-old central HVAC + humidifier + thermostats two-zone system in my home with a new state-of-the-art total system and I could not be more pleased. From start to finish each employee was personable, extremely knowledgeable, very courteous, and the consummate professional. There is truth to the adage that you get what you pay for and I know I got the best. All Gold Stars!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

1 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Pure Temp Heating and Cooling, LLC
Pure Temp Heating and Cooling, LLC
5.0(
18
)
Central A/C - InstallGas Furnace / Forced Air Heating System - Install

Serving Fremont, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"done right and on time both AC and Furnace--pleasant person to work with and all at a reasonable cost--would recommend Jake highly. ED L"
New Installation
Steam Boiler
Response time8 hrs
Response rate88%
3 neighbors recently requested a quote
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Avatar for Comfort Air Services
Comfort Air Services
4.3(
22
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+10 more

Serving Fremont, NH and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Very professional. In and out service. No problems during installation. Very pleased with our purchase and choice of installer. Patrick Bedard did a really great job!"
HVAC Jobs
HVAC Jobs
HVAC Jobs
HVAC Jobs
HVAC Jobs

+18

Response time2 days
Response rate89%
16 neighbors recently requested a quote
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Showing 1-10 of 287
Heating and Air Conditioning FAQs, answered by experts

If your central AC is not blowing cold air, you should try resetting the system. Many systems have a reset button. Make sure your thermostat is off, then turn off the circuit breaker that powers your AC. Hold the reset button for three to five seconds, then turn the circuit back on. Set your thermostat to cool and choose a temperature cooler than the room. Your system should turn on quickly.

If the air coming from your AC unit is cool but never quite cold, there are a few reasons this might be happening. For starters, it could signal that your refrigerant levels are low. If there are no other indications of this particular issue, like hissing noises or frozen refrigerant lines, anything from dirty filters to damaged condenser or evaporator coils could be responsible for the problem.

Some AC filters, known as reusable filters, can be cleaned and reinserted. Most AC filters, however, are disposable and cannot be cleaned. 

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

The Fremont, 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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