Serving South Dennis, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1983
Emergency services offered
Warranties offered
"Came when promised. Repaired an old central air compressor. saved he day. '"
+101
Serving South Dennis, MA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Very well. They say it would take 2 days but they did it in a day. Very professional and cleaned up afterwards. Hired their electrician to do other electrical work."
Serving South Dennis, MA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Dependable and professional. Bob fixed my thermostat within a days notice. He promptly resolved the issue and helped me out when I was in a pinch. I was happy to do buisness with him."
Serving South Dennis, 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 Dennis, MA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"He was great at his work. Very kind and efficient customer service, he calls you or texts you back within 2 seconds or so, super quick! He was 8k dollars less than the next most affordable quote we received, so the value was great too! They were amazing overall! Sam was only booking 2 weeks out, in comparison to other local companies who book months in advance. He stays small to stay efficient!"
Serving South Dennis, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1996
Free estimates
Emergency services offered
"Braga Brothers provided exceptional service during my gas furnace installation. The team was punctual and efficient, completing the job with confidence and professionalism. They took care to protect my home and explained the system thoroughly, ensuring I understand the new system. I highly recommend Braga Brothers for anyone in need of HVAC services."
+16
Serving South Dennis, MA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
At Premier Energy Solutions, your comfort and safety come first. We protect your home or business with turnkey, worry-free generator installations, HVAC systems, and electrical work — all backed by unmatched reliability and value.\n\nEvery project is handled by licensed professionals using top installation practices. From backup power to heating and cooling to electrical upgrades, we make it seamless, professional, and built to last.\n\nSince 1992, Premier Energy Solutions has grown from a licensed electrical contractor into a full-service power, comfort, and safety provider. We deliver a complete, turnkey experience — design, permitting, installation, testing, and support.\nGenerators. HVAC. Electrical. One trusted team.
Serving South Dennis, MA and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"Responded quickly and explained clearly what he could do and when. Would recommend him. Did a great job"
Serving South Dennis, MA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Very efficient and thorough installing a new gas water heater and communicating procedure. Fairly priced also in a timely manner."
Serving South Dennis, MA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Good Service, on time, reasonably priced, professional."
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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