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Find Central a/c service or repairers in Portsmouth

Avatar for Kevin Russo HVAC
Kevin Russo HVAC
4.9(
70
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kevin was prompt, efficient and fixed the problem with our central humidifier. I will definitely call him for yearly service."
HVAC INSTALLS
Samsung
HVAC INSTALLS
York condenser
HVAC INSTALLS

+2

Response time2 hrs
Response rate88%
Recommended by98%of homeowners
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Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
88
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"Palmer Gas has been providing our homes with propane gas and services for over 25 years. The office and customer service staff is courteous and helpful. The installers and repair personnel show up on time and leave the area they are working on cleaner than it was when they started the work. The technicians and repair staff explain what they are doing in a very understandable way. That is important for this of us that are not mechanically oriented. I would recommend the company and staff for your propane needs."
Additional Photos
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Additional Photos

+11

2 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Spent a lot of time making sure everything was serviced appropriately."
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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Avatar for Heritage Home Service
Heritage Home Service
4.2(
1,355
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"Service expert came the same day I called, worked on the HVAC unit in a wicked downpour but remained cheerful about it. Work performed very quickly and central a/c is back in business. Couldn't like it more."
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

187 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Maffei Plumbing and HVAC, LLC
Maffei Plumbing and HVAC, LLC
3.8(
12
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

Air Conditioning Installation
Rinnai Tankless
Water Filtration
Heating Systems
Heating Systems

+6

Response time1 day
62 neighbors recently requested a quote
Recommended by12%of homeowners
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Sunrise Heating and Cooling
5.0(
5
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Sunrise Heating and Cooling did an excellent job installing my new Rinnai tankless water heater/boiler. From start to finish, the experience was smooth and professional. The crew was knowledgeable, punctual, and took the time to explain the system and answer all of my questions. The installation was clean, efficient, and clearly done with attention to detail. Everything works perfectly, and I couldn?t be happier with the upgrade. It?s clear they take pride in their work. If you?re looking for reliable, honest, and high-quality service, I highly recommend Sunrise Heating and Cooling."
20 neighbors recently requested a quote
Recommended by40%of homeowners
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Avatar for Control Temp, LLC
Control Temp, LLC
4.2(
32
)
Central A/C - Service or Repair

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quick response

"Returned my phone call to advise when they would be able to help me. Very easy to do business with and knows what they are doing, I have them on my list of who to contact for a/c and plumbing issues. Provided me with options for emergency service if I could not wait. Keep up the good work. Jack"
2 neighbors recently requested a quote
Recommended by17%of homeowners
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FAQs for central a/c service or repair projects in Portsmouth, NH

Coils work to absorb heat into the refrigerant that flows through them, moving heat from one location to another. For air conditioning, the evaporator coil inside the air handler in your home absorbs heat. It then transfers the heat outside to the condenser coil, where it releases it. The opposite process happens for heat pumps. When the coils get dusty and dirty, it reduces how well these components work.

Skip regular cleanings, and dirt, debris, and mineral deposits will blanket your evaporator and condenser coils. When that happens, the coils can’t shed heat efficiently, so the system works harder and your energy bill climbs. Over time, overheating strains the compressor and can trigger a full breakdown—an avoidable repair that often costs far more than a simple annual cleaning.

AC coil cleaning is an investment that pays for itself in the benefits it provides. Dust‑caked coils force your AC to run longer, so you spend more on electricity and rack up extra wear. A quick professional cleaning restores efficiency, trims monthly bills, and eases strain on expensive parts. Over the long haul, that small yearly fee delays pricy repairs and stretches the unit’s lifespan, making coil cleaning one of the smartest HVAC tune‑ups you can schedule.

Watch for higher electric bills, rooms that stay warm no matter how low you set the thermostat, or an AC system that runs nonstop. Extra humidity and frost on the coils are also red flags. Catching these clues early lets you schedule a quick cleaning before the system overworks itself and triggers an expensive breakdown.

Your AC cleaning technician starts by shutting off the power to the unit and removing the faceplate. Compressed air and a vacuum hose blast away loose debris, followed by a coil-safe, no-rinse cleaner that dissolves stubborn grime. After the solution has soaked in, the professional wipes the fins, reassembles the housing, and restores power, leaving the system ready to cool at peak efficiency.

The Portsmouth, NH homeowners’ guide to central a/c service or repairs

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

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