Serving Halifax, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Had a great time working with Nolan from Glacier Heating & Air Conditioning. Reliable, dependable, and trustworthy. Great response time as other companies had me waiting much longer."
Serving Halifax, MA and surrounding areas
Approved
In business since 1983
Free estimates
Warranties offered
"Majic Air did a great job of listening to our desires. We wanted to install central air conditioning in our two story home. We did not want ductless wall units. Shawn, the salesman, was able to come up with a plan that combined traditional ducted AC for the first floor of our home with ductless ceiling cassettes for the second floor of our home, completed with one wall unit for our finished third floor office. We have the air conditioning we wanted and the look we desired. The installers were professional, hard-working, and incredibly neat - leaving us with a tidy home each day. This was a complex job, and Majic Air got it done."
+23
Serving Halifax, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Heating maintenance excellent. Ask questions, all questions answered. Will like technician Mark Huynh to return"
Serving Halifax, MA and surrounding areas
Approved (Corporate)
In business since 1984
Free estimates
Emergency services offered
"Quick and efficient work done by Angel Ortiz. He explained the issue and all the work that needed to be done. Definitely recommend ARS for all your heating & air conditioning needs."
+10
Serving Halifax, 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."
Serving Halifax, MA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
Expert residential heating and air conditioning repair, maintenance, and install services with 24/7 after hours service for EMERGENCIES serving all cities and town within 2 hours of Quincy, MA. Tech will respond within 2 hours. Affordable after hours EMERGENCY service for no heat/ no hot water from 530pm to 3am. Non-Emergent service calls, repair, and maintenance offered before 530pm 7 days per week.
Serving Halifax, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2001
Emergency services offered
Customers say: Quick response
"Absolutely fantastic job installing my new furnace. They knew we had family visiting during a humid stretch of weather and stayed late night to get our central air back online. Cannot recommend these folks enough."
Serving Halifax, 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"
+27
Serving Halifax, 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."
+5
Serving Halifax, MA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Bob did a new mini split install for me and I couldn't be happier with the work. He was professional, timely, and had excellent communication. He was also very knowledgeable and made some great recommendations for the project. I'd recommend him to anyone looking for HVAC work."
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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