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Find Central a/c service or repairers in Marlborough

Avatar for NETR Inc
NETR Inc
4.7(
78
)

Serving Marlborough, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"My Central AC unit went out; the box outside smelled like something had fried. I called NETR, and they said they would send a technican over in a week. The technician came on time and promptly inspected the unit. He reported that the capacitor had blown, and told me that he had a spare back in his van. The labor was covered by the diagnostic site visit fee, it was just the parts cost. I told him to proceed and he replaced it. My AC was back up and running within the hour."
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
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+9

31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,397
)

Serving Marlborough, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Overall great customer and install service! Sila was quick and efficient when installing our central air system, explained all the costs and components upfront and all the staff I worked with were a pleasure. Would absolutely hire again!"
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+6

Response time2 days
63 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)

Serving Marlborough, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I had originally thought that a high velocity mini-duct central a/c system was the only option for my Victorian home with baseboard heating. But when Joe Carnevale from Airco explained the benefits of a multi-zone slim-duct system with concealed air handlers in the attic to cool the second and third floors and a conventional system tied to existing (unused) floor registers on the first floor, I was intrigued. After rebates and tax credits (which aren?t available for high velocity systems) the cost was extremely competitive and the fact that the system has four individually controlled zones means that I can adjust the cooling levels to keep operating costs lower. The installation was a little tricky as I asked (owner) Steve Duarte and his crew to run the refrigerant, electrical, and condensate lines through an unused chase to the second and third floors rather than affix a conduit to the outside of the house (which wouldn?t have been allowed due to my home?s historic designation.) The work was done efficiently and with practically no disruption to the day-to-day living that went on during the installation. The left the house and basement very clean. I have been very satisfied with the system?s performance during the several heat waves we?ve experienced this summer. All in all it was a very professional job from start to finish and I would highly recommend Airco Home Comfort Services to anyone considering central air conditioning, and in particular to owners of older homes without existing ductwork. 

"
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+4

Response time2 days
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
4.4(
200
)

Serving Marlborough, MA and surrounding areas

Approved

In business since 1979

Credit card accepted

Customers say: Super punctual

"Overall, I was pleased about working with Milltown. There was a slight communication issue, but I understand that can happen from time to time. The technician who performed the service was extremely nice and knowledgable."
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10 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Atlantic Heating & Air Conditioning
Atlantic Heating & Air Conditioning
4.1(
153
)

Serving Marlborough, MA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"Atlantic Heating & Air Conditioning responded professionally and quickly to my call. A service technician diagnosed the problem and ordered the a new gas valve and two sensors. A second technician, replaced the defective parts and serviced the boiler. Both technicians performed their work in a very professional manner, identified the source of the problem and clearly explained what was needed. I was impressed with their work and would definitely hire them again."
Response time3 days
9 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Ken's HVAC Service
Ken's HVAC Service
4.8(
44
)

Serving Marlborough, MA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

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!

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My work
My work
My work
My work

+12

Response time8 hrs
Response rate93%
Recommended by93%of homeowners
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FAQs for central a/c service or repair projects in Marlborough, MA

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 Marlborough, MA 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.