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Find Central a/c service or repairers in Littleton

Avatar for Druziako HVAC Inc
Druziako HVAC Inc
4.7(
157
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I would highly recommend Druziako HVAC Co. to anyone needing repairs and or replacement for Heating and cooling service. We lost our furnace Heating in the middle of the cold snap, these guys came out and immediately found the replacement system we needed and promptly replaced the next business day. Job completed, who does that..? The owner even called us during the night and offered to bring us a temp heat source if we needed it. Fortunately we did not. We can't say enough about the service. I would use them again and plan to for future cleaning and service. Nick ( the Owner i guess) and his guys did a great and professional job. Thank You Nick...!"
Aprilaire Dehumidifier
Attic Air Handler
Duct Cleaning before and After
Attic Ductwork
Aprilaire Humidifier

+3

Response time11 hrs
17 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,403
)
Central A/C - Service or Repair

Serving Littleton, 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
Response rate100%
38 neighbors recently requested a quote
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Joe explained various options (models, efficiency rating, attic vs. cellar installation, etc.) thoroughly, promptly followed through on my follow-up questions, and prepared a detailed & accurate quote. He measured the size of the house and cold-air returns to ensure the system was sized properly. He is a patient guy & very pleasant to work with. Scheduling the installation was painless, the installers (Steve and his assistant Derek) started on time, and worked diligently & efficiently.
Everyone is very experienced and knowledgeable, and all clearly take pride in their work. They kept in excellent communication with me throughout the installation. They were respectful of my home, my concerns, my pets, etc.
They stand by what they sell, too. This winter, about 18 months after it was installed, my tankless hot water heater had a factory defect that caused it to shut off. Steve came the day I reported the problem, was on the phone with the manufacturer for hours to diagnose the issue, and came back twice more to finish the repair (3 visits might sound absurd, but it wasn't Airco's problem, it was the manufacturer's, as they were misdiagnosing the issue). The unit is now working perfectly thanks to Steve's persistence. A bonus: Airco charged me for only a small portion of Steve's time from his initial visit. They ate the cost of his additional visits! These guys are golden.
"
Additional Photos
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+4

Response time2 days
2 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
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1979

Credit card accepted

Customers say: Super punctual

"Pedro was awesome!! I called Milltown at 2:45 pm, my sink was unclogged and he was out the door by 4pm. Super professional, fun to talk with and very knowledgeable. I will definitely put Milltown in my contacts in case I ever need plumbing services again."
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12 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Emerald HVAC LLC
Emerald HVAC LLC
5.0(
15
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"My central AC unit has been broken for several years. intermittently working during hot summers. I've had several HVAC companies come to diagnose and all of them told me different things: replace the whole system, new lines, etc. potentially costing tens of thousands of dollars. So I decided to troubleshoot by myself and pinpointed the issue: the filter dryer needed to be replaced. No company wanted to do this small job. I called Emerald HVAC and told them about my issue, they sent in José, who diagnosed the issue to be what I said. He replaced the filter dryer and the AC unit works perfectly now after several years! In short, Emerald HVAC will be my first choice for any HVAC work in the future. They are honest, professional, and reasonably priced. I recommend them without reservation!"
Response time1 day
Response rate93%
32 neighbors recently requested a quote
Avatar for Atlantic Heating & Air Conditioning
Atlantic Heating & Air Conditioning
4.1(
153
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"I’ve used Atlantic for years because their work is top quality and they hire the most professional, courteous people. I completely trust them. Liam C. did most of the work here with his partner, Adam M. They were always on time, did great work, cleaned up thoroughly and explained everything they were doing. Having people do this type of work in your house can be intrusive but I never felt that way with these two. I went about by business, left when I needed to and really never worried about the work getting done well or leaving them while I was gone. Thanks Liam and Adam!"
Response time3 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Milltown Plumbing, Heating, Cooling and Electrical - HVAC
Milltown Plumbing, Heating, Cooling and Electrical - HVAC
4.3(
424
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1979

Warranties offered

Small jobs welcome

"Most of us are well aware that service calls for any home repair leave us all a little apprehensive. Some businesses focus more on the bottom line, and in turn, the quality of work suffers for the customer. This isnâ t the case with Milltown Plumbing and Heating when I called them to service my central A/C which wasn't cooling the house. Even though my unit is in need of replacement, Jay, their Field Service Technician was able to at least get the A/C up and running. He was honest and straightforward in assessing my problem and suggested I meet with a comfort advisor in regard to a new central A/C unit. My experience didn't change. The comfort advisor I met with gave me a variety of options for a replacement unit, again he was courteous and honest. If youâ re looking for a company that you can trust, a company with integrity, I would strongly recommend you contact Milltown Plumbing and Heating for any of the services they provide."
The Milltown Team
Family Owned and Operated
We're Ready When You Need Us
Our Mission
Team Photos

+13

Response time9 hrs
Recommended by89%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,316
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"New furnace and AC unit . Job was done fast and done right ! Dave Ayotte the project manager followed up to make sure we were satisfied with the new system . The did everything they said they would do and more . Their concern was that the job was done right the first time . Had Three quotes . Heritage was a little more but the customer service is over the top!"
Career fair
Team breakfast
Festivals and events
Golf tournament
Heritage Helps initiatives

+27

Recommended by91%of homeowners
Avatar for ENDLESS ENERGY NEW ENGLAND, INC.
ENDLESS ENERGY NEW ENGLAND, INC.
4.7(
20
)
Central A/C - Service or Repair

Serving Littleton, MA and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

Endless Energy is a trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts with office in Marlborough, Needham, and Randolph. Specializing in Heat Pumps, Central AC, Furnaces, and Boilers, we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation.\n\nWe can help you with: \n*Heating Repairs, Installation, & Service\n*AC Repairs, Installation, & Service\n*Plumbing Repairs, Installation & Service\n*Water Heater Replacement & Service\n*Indoor Air Quality Solutions\n*Ductwork & Line Set Solutions\n*Electrical Panel Upgrades and Replacement\n*Insulation \n*No Cost Home Energy Assessments\n\nA Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

Holliston Heat Pump
Boston Heat Pump
Natick Ducted System
224 neighbors recently requested a quote
Recommended by70%of homeowners
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FAQs for central a/c service or repair projects in Littleton, 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 Littleton, 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.