Serving South Dartmouth, MA and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Rick responded quickly and had my air conditioning working efficiently in no time. Good professional service!"
Serving South 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."
Serving South Dartmouth, MA and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"Great people to work with both before and during installation. Very professional and on time with their work. Had one small malfunction with a piece of equipment and they fixed problem quickly. I would highly recommend Family Heating and Air Conditioning"
+21
Serving South Dartmouth, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Dylan is very reliable and knowledgeable. He has provided plumbing services many times for us and I wouldn't use anyone but him. The service is exceptional and pricing is extremely fair. I highly recommend Venture Mechanical for any plumbing, heating, or air conditioning needs that you may have."
+27
Serving South Dartmouth, MA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Eddie was responsive, professional, and efficient. He was able to come same-day and solve our problem with parts he had on-hand. Our A/C was back up and running within an hour of his visit."
+15
Serving South Dartmouth, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2001
Emergency services offered
Customers say: Quick response
"I called BK and I sent Bernard my information via text. He came the next day prepared with my part. Replaced my pump in my 20 plus year-old washer. He was very knowledgeable and friendly. Got the job done!! Glad to have a local person for appliance repairs."
Serving South Dartmouth, MA and surrounding areas
Approved
In business since 1944
Free estimates
Emergency services offered
"Extremely friendly service. Prompt and professional. It was a little more expensive than I thought it would be to swap out a light/exhaust fan, but the work was excellent and I would hire again in the future."
+56
Serving South Dartmouth, MA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job
Serving South Dartmouth, MA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Brian was professional and courteous. We wonâ t know if he was able to solve my problem until the weather gets warm enough to use the a/c. Thatâ s why I gave them a 4 rating."
Serving South Dartmouth, MA and surrounding areas
Approved (Corporate)
In business since 1984
Free estimates
Emergency services offered
"Anthony B. Did my spring tuneup for my Air Conditioner. Fast and polite. My three dogs liked him too. Technician Austin came to perform a chemical spray wash for my outside unit. Professional and courteous."
+10
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.
From average costs to expert advice, get all the answers you need to get your job done.
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