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Best air conditioning pros near Durham, NH

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Verified Reviews for Air Conditioning pros in Durham, NH

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

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

Last update on February 12, 2026

Top-Rated Air conditioning pros in Durham - Updated Nov 2026

Avatar for Freedom Air Mechanical
Freedom Air Mechanical
4.8(
14
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Durham, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Freedom Air Mechanical did an amazing job with replacing my boiler. I had 5-6 people come out to give me opinions and Craig was the only one that really took his time to help me find the best boiler for my home. He was very responsive, answer all my questions and concerns, and very importantly I knew he was honest. Out of all the potentials companies I considered, Freedom Air was the only one that gave me options and tried to help me save where I could. I would recommend Freedom Air Mechanical to my family and friends all day."
Additional Photos
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+36

Response time1 day
Recommended by92%of homeowners
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Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
43
)
Air Ducts & Vents - Clean

Serving Durham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Wornderful job from the guys they were on time and left the house in excellent condition after the job was done, will definitely recommend them to my family and friends."
Additional Photos
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+2

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
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Avatar for Pure Temp Heating and Cooling, LLC
Pure Temp Heating and Cooling, LLC
5.0(
18
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Durham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"This was our second appointment......Jake was prompt, courteous and efficient. Reasonable cost too! He cleaned one of the mini-split units in record time. Then he found the leak in the system that's been a problem. Highly recommended! Appreciate your work and thank you for your Military Service!"
New Installation
Steam Boiler
Response time8 hrs
Response rate88%
2 neighbors recently requested a quote
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Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
89
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Durham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"Best customer service and technicians. Stephanie, Lead Installation Coordinator, acts promptly in scheduling and keeps customers informed of updates. Ryan, Installation Technician, has been exceptionally knowledgeable in resolving both heating and air conditioning issues. Highly recommend Palmer Gas & Oil Nancy R"
Additional Photos
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+11

1 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Granite State Refrigeration Services LLC
Granite State Refrigeration Services LLC
5.0(
10
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Durham, 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%
5 neighbors recently requested a quote
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Avatar for Kevin Russo HVAC
Kevin Russo HVAC
4.9(
71
)
Central A/C - Service or Repair

Serving Durham, NH and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kevin was great. Our Central Air System died during a Heat Wave . When other companies told us they couldnâ t give us an appointment for two weeks, Kevin came the next morning and on a Holiday weekend. He was quick and reasonably priced. We would highly recommend Kevin Russo to anyone looking."
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 Comfort Air Services
Comfort Air Services
4.3(
22
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business

Serving Durham, NH and surrounding areas

Approved

In business since 2008

Credit card accepted

Offers commercial services

"Very competent, knowledgeable and expedient service from the beginning to end and the crew was great to work with. We highly recommended them. You won't regret it."
HVAC Jobs
HVAC Jobs
HVAC Jobs
HVAC Jobs
HVAC Jobs

+18

Response time2 days
Response rate89%
15 neighbors recently requested a quote
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Wentworth Duct Cleaning, LLC
4.9(
53
)
Air Ducts & Vents - Clean

Serving Durham, NH and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: True professional

"Gary and Tina are such pleasant people and they know their business. They let me know exactly what they were doing; even showed me how their equipment works and took before and after pictures of my air ducts - which it seems had never been cleaned in the 40 year history of the house! They are very accommodating to people like me who are very curious. They don't mind at all if you watch them while they work. Their thoroughness is impressive. They are also one of the few companies that work on mobile homes. I highly recommend them."
Response time1 day
Response rate95%
2 neighbors recently requested a quote
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Avatar for Cornerstone IAQ Services, LLC
Cornerstone IAQ Services, LLC
4.9(
72
)
Air Ducts & Vents - Clean

Serving Durham, NH and surrounding areas

Approved

In business since 2015

Credit card accepted

Customers say: Quality work

"They contacted me quickly and were up front and honest about not being able to clean the type of air conditioning vent system I have so didn't waste my time. I really appreciated their honesty and the warning they gave about another company."
Before Picture Flex Ducting
After Picture Flex Duxting
Before Picture Flex Ducting
After Picture Flex Ducting
After Picture Hard Ducting

+2

Response time1 day
Recommended by98%of homeowners
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Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Durham, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Heath did a great job. He found the problem with the wiring and corrected it. I definitely would call Skovron again"
Commercial Cooling
Before Oil Boiler
Old
Oil Boiler
HVAC Roof Top Unit

+19

Response time9 hrs
Response rate100%
Recommended by84%of homeowners
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Air Conditioning FAQs, answered by experts

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

DIY is possible for basic cleaning. Professional services handle advanced maintenance like recharging the refrigerant.

Traditional central air conditioning systems require ductwork to circulate air throughout the home. Alternatively, you can add air conditioning with a mini-split ductless air conditioning system, which can be just as energy efficient as a central air conditioner. This type of system consists of two units–an outside unit that holds the compressor and condenser and an indoor unit that holds an air-handler. With multi-zone ductless systems, there are multiple indoor air handlers tied to a single outdoor compressor/condenser, allowing the system to cool multiple rooms.

A new HVAC system can increase your home's value by about 5% to 7%, which can translate to an added value of $2,500 to $3,000. The return on investment (ROI) can be around 30%, especially if you upgrade the entire system, including ductwork and insulation. Adding modern features like a smart thermostat can further increase your home’s value by making the heating and cooling systems more efficient and convenient. However, since a new unit can cost $10,000 or more to install, it's important to weigh the upfront cost against the potential increase in home value. For a specific assessment, it's best to consult a local AC installer.

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. 

The Durham, NH homeowners’ guide to air conditioning services

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

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