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Find Air conditioning pros in Chelsea

Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Central A/C - Install - For BusinessCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business+11 more

Serving Chelsea, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I whole heartedly recommend Airco. Their team was experienced, skillful, friendly and professional throughout the duration of this job, from Joe's first visit to my home to discuss air conditioning options to Derek and Cam's final touches on the duct system. I had complete confidence in them, as well as in Steve, Danny, Frank and Patrick. Additionally, Airco's connections to MassSave and Commerce Bank meant financing and payment options to suit my budget. No more hauling loud and heavy window a.c. units up from the basement. Instead, I am enjoying consistent cooling throughout my home with no noise whatsoever. I am a very happy customer!"
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+4

Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Ace Hardware Home Services
Ace Hardware Home Services
4.5(
53
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Chelsea, MA and surrounding areas

Approved (Corporate)

In business since 1967

Free estimates

Emergency services offered

"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."
Heat Pump
Mitsubishi Hyper Heat
Multiple Ductless Heat Pump Installation
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+6

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Emerald HVAC LLC
Emerald HVAC LLC
4.9(
16
)
Central A/C - Service or Repair

Serving Chelsea, 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%
29 neighbors recently requested a quote
CJC HVAC
4.9(
26
)
Central A/C - Service or Repair

Serving Chelsea, MA and surrounding areas

Approved

In business since 2016

Emergency services offered

Small jobs welcome

"My central air system went down in the middle of a heat wave and virtually every HVAC repair service that I called told me that they weren t taking new clients and couldn t help me. I contacted Chris through home advisor and he agreed to help me out. He promptly came to my house, identified my problem, and ordered parts. When the parts arrived he immediately came back and installed them and I was up and running. Chris identified and fixed my problem and the entire process took only 2 days. On top of that, the price was more than reasonable and Chris is a super nice guy. I highly recommend Chris because he is a skilled and professional technician."
Refrigeration leak repair
Hard Start Kit
Rebuild
Response time2 hrs
Recommended by100%of homeowners
Avatar for Green Flow Solution, Inc.
Green Flow Solution, Inc.
5.0(
13
)
Central A/C - Service or Repair

Serving Chelsea, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

With years of experience and unmatched expertise, Green Flow Solutions is proud to be a locally owned and operated business serving Newton and the surrounding community. Since opening our doors we have built our company by providing customers with the highest quality products and service, at a fair price. From installs and replacements, to service and repair, our customers can count on our techs to be timely, tidy, and that they will be 100% satisfied with the work once completed. Let us show you the Green Flow Solutions difference, get in touch today! \n-$99 diagnostic fee applied to job when hired

Response time3 hrs
Avatar for H L Bowman
H L Bowman
4.6(
426
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+1 more

Serving Chelsea, MA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Great experience Justin, Nate & Timothy were awesome. Very knowledgeable, professional & curious. Aside from the cleanliness they delivered an experience. I highly recommend HL bowman if you want rapid service on your HVAC. Pricing was reasonable in my opinion & financing is an option. Keep in mind when seeking quotes for your HVAC repair/ new install you must consider performance over equipment, that is if your want a good system that will have a good run/life span."
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+6

440 neighbors recently requested a quote
Recommended by87%of homeowners
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FAQs for air conditioning projects in Chelsea, MA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Chelsea, MA homeowners’ guide to air conditioning services

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