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Find Central a/c service or repairers in Randolph

Avatar for NETR Inc
NETR Inc
4.7(
78
)

Serving Randolph, 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 Brarmann Co., LLC
Brarmann Co., LLC
4.6(
131
)

Serving Randolph, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"Garrett is professional and efficient. He explains each step of his diagnosis and the installation of a new central AC unit. He adheres to COVID-19 safety precautions and is a pleasure to work with."
New mini split Install
Mini split line set up
Fujitsu mini split
New Heating Install
New Oil Fired Boiler Install with Carlin head

+24

Response time3 hrs
Response rate92%
2 neighbors recently requested a quote
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,397
)

Serving Randolph, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Terrific experience. Scheduling was easy. My technician, Guy, gave me a call ahead of time, hit the time he said he'd be here and was courteous and efficient. I ran a large mechanical contracting business for years so understand this business. Guy ran through his checks on what is a fairly complex home system. He pointed out problems that were minor, major, or had the potential to be major. We discussed options and timing. Since our system is old, it will be difficult to repair some of the parts and pieces while others would be fairly standard. We may want to look at a new system this summer to avoid a major problem during a future heating season. I will definitely be talking to Sila."
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+6

Response time2 days
63 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Venture Mechanical
Venture Mechanical
5.0(
18
)

Serving Randolph, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"We had our heat go out at 10pm and they came out first thing in the morning, the repair was fast and affordable.They did a great job cleaning up after. Would highly recommend Venture Mechanical"
Steam Boiler Install
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+27

Response time1 day
12 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for JN Service HVAC & Plumbing
JN Service HVAC & Plumbing
4.6(
11
)

Serving Randolph, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Welcome!\n\nAt JN Service HVAC & Plumbing, we’re proud to deliver licensed, insured, and trusted HVAC and plumbing solutions to homes and businesses across Massachusetts.\n\nWith a solid reputation built on Excellence, Commitment, and Responsibility, we help you prepare your home or commercial space for the season ahead — before winter problems strike.\nOur priority is your comfort at home.\n\nWhy Choose Us?\n- 5-star Rated Company: We are a 5-star rated company with more than 1200 satisfied clients.\n- Customer Success: We focus on long-term relationships.\n- Specialist: Expert knowledge and proven skills.\n- Licensed and Insured: Our services are fully insured, providing you with peace of mind.\n- Quality in Everything we do: Best service with the best products.\n- Double-year warranty on labor.\n- Emergency Service: We're ON 24/7 to ensure your well-being.

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+5

30 neighbors recently requested a quote
Recommended by18%of homeowners
Avatar for Green Energy Mechanical
Green Energy Mechanical
4.3(
96
)

Serving Randolph, MA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"I had central A.C. installed - Jonathan Neves (owner) offered an outstanding price, he uses friendly hard-working installers who did quality workmanship. J. walked me through all the possible rebates I could qualify for, and I ended up spending about 80% of what other contractors bid for my job. Definitely would do business with him again. Only reason for 4.5 stars on customer service was that there doesn't seem to be an office assistant to answer phone inquiries, so often the only way to communicate is via voicemails left on Jonathan's phone."
 Before
 Space for condenser outside
 After
Traditional Dining Room - Tan Cozy Dark Wood Dining Chairs
 old steam boiler

+17

62 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Mir HVAC & Appliances Technician
Mir HVAC & Appliances Technician
4.8(
28
)

Serving Randolph, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

Mir HVAC & Appliances Technician, take great pride in our experience, expertise, quality and customer service that\nwe provide to meet your needs. It is our mission to provide excellent workmanship\nand complete customer satisfaction from start to completion of a project. \nIn order to understand the needs and expectations of our customers,\nwe take great care to work and communicate with every customer a professional manner.\nOur reputation is based on service, safety and quality, regardless of how large\nor small the job.

Response time2 hrs
Response rate90%
3 neighbors recently requested a quote
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FAQs for central a/c service or repair projects in Randolph, 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 Randolph, 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.