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Find Air conditioning pros in North Dartmouth

Rick Maloney Heating & Cooling
4.7(
124
)

Serving North Dartmouth, MA and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"Review by Claudette L. in Fall River, MA Project: Removed Whirlpool central A/C & Installed Concord central air conditioning condenser. Rick was excellent, pleasant, skilled & responded quickly after my initial request. He was very proficient, addressed all of my questions & concerns. He also managed to schedule my work quickly to complete the job & be sure that my new A/C was working properly before his departure. He was also reasonable with his original quote for his services & did not change this price upon completion. I will absolutely call Rick for any future heating or air conditioning issues. & would highly recommend Rick Maloney heating & cooling to friends & family."
Response time4 hrs
13 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for CMA Heating & Air
CMA Heating & Air
4.9(
40
)

Serving North Dartmouth, MA and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"We had a central air conditioning unit replaced. Chris was quick to respond via text message. He arrived exactly at the time he said he would, completed the job in less time than expected, ensured the unit was functioning properly before he left. He additionally offered tips and tricks for yearly maintenance on the unit. He was friendly, courteous, and reliable. We would definitely recommend him in the future."
Response time8 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Family Heating & Air Conditioning
Family Heating & Air Conditioning
4.8(
42
)

Serving North Dartmouth, MA and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quality work

"Justin and Manny were great! I would highly recommend them. If you need heating or air conditioning there your go to guys. If I could give them 10 stars I would. Look no further these are the guys you want!!!!"
Cutting Holes for the Fresh Air Intake
Vent Labels
Drain work is complete
Attic HVAC Cenntarl AIr System
Furnce

+21

Response time11 hrs
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Venture Mechanical
Venture Mechanical
5.0(
18
)

Serving North Dartmouth, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Dylan was amazing. My hvac person retired & I found Dylan when my Central air decided to act up. He explained my unit was in approaching its last days but he could attempt to repair it if I wished but I decided it was time to do a complete new heating & cooling system & he made it a easy process. No pressure & no stress. Now we’re ready for the heat wave that’s apon on us. Thank you Dylan & your team for your professionalism & great service. I highly recommend & they’re my go to for plumbing as well as I’m about to have them replace my hot water tank before it becomes an issue"
Steam Boiler Install
Additional Photos
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+27

Response time1 day
11 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Armus Mechanical
Armus Mechanical
4.9(
48
)

Serving North Dartmouth, MA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"My on demand heating system wasnt running efficiently so I called the company and they had someone at my home very quickly. Come out inspected my system and gave me alot of information on how it worked and what needed to be done. Very satisfied with the work. Definitely will recommend them to anyone looking for fast and friendly service"
Compressor Changeout
Compressor Changeout
Compressor Changeout
Mini split install
Mini split install

+15

Response time50 mins
Response rate95%
2 neighbors recently requested a quote
Avatar for Cassana HVAC LLC
Cassana HVAC LLC
4.8(
17
)

Serving North Dartmouth, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"I have nothing but good things to say about Philip Mills, his crew, and his company, Cassana HVAC. I wanted to install heat-pumps for central heat and air in my large home, and I solicited a few bids. Philip responded promptly to my request to visit my home and provide a detailed estimate. His price was quite competitive, the work started on time, and he and his crew did an excellent job. Indeed, I am so impressed with Cassana HVAC that I am now using them to work on other systems in my home. I highly recommend Philip Mills."
Additional Photos
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+9

Response time3 days
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for ICM Mechanical and Controls
ICM Mechanical and Controls
4.7(
18
)

Serving North Dartmouth, MA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I found J&M heating and cooling through Angiâ s list online. I had been a couple of days without AC and within 15 minutes of my entry online they were calling and then they were out to my address to check the problem within 2 hours. They were very prompt, efficient and professional. I would definitely call them again."
Response time7 hrs
5 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for All Phases Mechanical
All Phases Mechanical
4.6(
232
)

Serving North Dartmouth, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Friendly, trustworthy people came to my home. I have had them exclusively taking care of my boiler, furnace and air conditioning unit for many years. They make themselves available and answer all calls promptly. I enjoy it went they come because they are friendly people."
Back side of units in Balle Meade
Balle Meade,Country Club
Oil to Gas Conversion
Ductless Split System
New AC Coil & Custom Duct Work

+5

Response time6 hrs
28 neighbors recently requested a quote
Recommended by92%of homeowners
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FAQs for air conditioning projects in North Dartmouth, 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 North Dartmouth, MA homeowners’ guide to air conditioning services

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