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Find Air conditioning pros in Chelmsford

Avatar for JOYCE COOLING & HEATING INC
JOYCE COOLING & HEATING INC
4.8(
206
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"My wife and I just had Joyce Cooling and Heating install duct work, air conditioning unit (Lennox) as well as a ductless mini split in our lower level. We received three bids for the project and selected Joyce for several reasons including, the salesman (Abe) that helped us and his level of responsiveness and consistent communication. We also liked the brands that Joyce partners with and installs - Lennox and Mitsubishi and from my research are the two best brands on the market. Our positive experience continued after we made the selection to hire Joyce for this large (4 day) project. They scheduled us in within days of making the decision and showed up early the first day (big bonus points in my book). The caliber of professionalism, courteousness, thoroughness and communication was present in every aspect of their work and across all of their employees. After each day they cleaned the work area and made sure it was left the way they found it. They completed the job earlier than expected and we are absolutely thrilled with the results. Each employee we interacted with at Joyce was polite, informative, friendly and knowledgeable. We have shared our positive experience with everyone we have spoken to about our recent home improvement and am a firm believer in voting with my dollars for businesses that deserve it and Joyce has won our vote. Keep up the great work guys! Well done Abe, Tyler, Harry & Bob!! Thank you!"
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"THE CREW"
Air Conditioners

+4

Response time1 day
9 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Druziako HVAC Inc
Druziako HVAC Inc
4.7(
157
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+6 more

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I needed an air conditioning system installed in my daughter's home. I live out of town, so had to communicate long distance. Nick and his team were able to provide an estimate for the system, and it was substantially lower than others I received. Nick took the time to thoroughly explain why his was lower and why the system he was recommended was the most appropriate for the size of home we have. Work was scheduled, and the crew arrived on time and complete the job in 2+ days. They explained operation to my daughter, and provided complete instructions on maintenance. All in all, we had a very good experience with Druziako HVAC, and I wouldn't hesitate to use them again. Thank you, Nick!"
Aprilaire Dehumidifier
Attic Air Handler
Duct Cleaning before and After
Attic Ductwork
Aprilaire Humidifier

+3

Response time11 hrs
24 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for NETR Inc
NETR Inc
4.7(
78
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"I bought my unit from NETR in 2018. It worked fine until we discovered it wasn't blowing any cold air. I made the big mistake of hiring someone a family friend recommended and they diagnosed it incorrectly and then basically disappeared on me. Anyway, it took a few weeks but they repaired it today and I was impressed with their courtesy and getting the job done very quickly and successfully. I felt like I was being dealt with honestly. Thanks, Jared and Jack. I should mention I paid about $300 for the refrigerant today. I don't know what the final cost will be but probably a bit over $1000."
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

19 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceWindow A/C Unit - Service or Relocate+11 more

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Airco is a great family-owned and operated business, very fair and knowledgeable. They replaced our forced air central heating system (oil) in a day, and were quick to respond and get to work despite how busy things were during the January cold-spell. I would highly recommend for your heating and cooling needs!"
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+4

Response time2 days
3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Unique Indoor Comfort Heating & Cooling
Unique Indoor Comfort Heating & Cooling
4.5(
53
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

In business since 1967

Free estimates

Emergency services offered

"I highly recommend Unique Indoor Comfort. My wife and I purchased a 1911 home 2 years ago. Closet space in these old homes is basically nonexistent, so I thought that central air conditioning was out of the question. I heard about high velocity air conditioners and contacted Unique Indoor Comfort. Jason C. was very knowledgeable and patient as I asked all of our questions. We decided to go with a two zone Unico system. Steve, Jason and crew exceeded our expectations. They were prompt, courteous and did what was necessary to meet the time estimate for the installation. They also cleaned up before leaving each day, leaving the house in the same condition as when they arrived. The system was installed around the 4th of July and the heat wave we experienced allowed the system to be fully stress tested, which it passed with flying colors."
Heat Pump
Mitsubishi Hyper Heat
Multiple Ductless Heat Pump Installation
Additional Photos
Additional Photos

+6

Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,399
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+12 more

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"We are overall very happy with the project. Sila had to install a high velocity air conditioning system in very limited space. They provided a timely quote and showed up and did the work professionally and on time. There were a few hiccups, such as the installation of the hatch to the attic space, but Sila’s carpenter agreed to fix the problem at no additional cost to us, so I consider that to be excellent service. After two weeks, the system has been performing exactly as we hoped."
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+6

Response time2 days
Response rate100%
50 neighbors recently requested a quote
Avatar for Dodge Cooling & Heating, Inc.
Dodge Cooling & Heating, Inc.
4.9(
51
)
Central A/C - Service or Repair

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I would highly recommend Dodge Cooling and Heating. They did a Spring tune up on my central air conditioning system and were extremely responsive, prompt, professional and knowledgeable. I will definitely use them for any future heating and A/C needs that I may have."
Duct Cleaning
Duct Work
Duct Work
Dryer Vent Cleaning
Dryer Vent

+4

Response time11 hrs
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for J.Griffin Heating & Plumbing
J.Griffin Heating & Plumbing
4.9(
266
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"After meeting with several plumbers to collect estimates on replacing our gas fired boiler and hot water tank we decided to hire J.Griffin Heating and Plumbing. We found his estimate to be in line with others received, but valued his honest opinion and recommendations. He completed our project on time and on budget and left our house in excellent condition. He was easy to communicate with and was very responsive, which it’s not always the case contractors. I would highly recommend J Griffin heating and plumbing."
Navien
Medford Ma
Malden Ma
Saugus Ma
Andover Ma

+64

Response time11 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Kilpatrick HVAC
Kilpatrick HVAC
4.9(
14
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The team at Kilpatrick HVAC was extremely friendly, professional, and courteous and above all, they had the best pricing. They showed up on time, did a great job. My new air conditioner is running so well. I would highly recommend Kilpatrick HVAC, to anyone needing professional installation."
4 neighbors recently requested a quote
Recommended by64%of homeowners
Chambers Heating & A.C. Service
4.5(
51
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I called Chambers and spoke with Kevin. He came out to my house the same day and diagnose my central air system as low on refrigerant. My system is twenty years old and has never been serviced. Kevin check out the system and based on the service history recommended that I recharge the system and monitor it over the summer. Kevin was honest with me and he wasn’t looking for the big pay day. I believe this is what every home owner wants when they hire a professional. Thanks Kevin!"
93% High Efficiency Gas Furnace with AC
Baseboard Zone on a Steam Boiler
Supply Header with Circulators
Before Pic w/zone valves & Loose Wiring
Gas Fired tankless water heater

+6

2 neighbors recently requested a quote
Recommended by97%of homeowners
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FAQs for air conditioning projects in Chelmsford, 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 Chelmsford, MA homeowners’ guide to air conditioning services

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