Serving Dighton, MA and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Responded quickly, repaired my air conditioner and awaiting a quote for more work."

Serving Dighton, MA and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Responded quickly, repaired my air conditioner and awaiting a quote for more work."

Serving Dighton, 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."





+6

Serving Dighton, 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 Dighton, MA and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"Excellent customer service skills exhibited by the entire team at Family Heating and Air Conditioning. Everybody showed up on time, there was great coordination between support contractors and material delivery. They installed a ducted AC system in our home with minimal inconvenience to us. They are a professional team I wouldn't hesitate to recommend to my family of friends."





+21

Serving Dighton, MA and surrounding areas
Approved
In business since 1983
Free estimates
Warranties offered
"Majic Air was awesome. So glad I found them on your website. Thank you!"





+23

Serving Dighton, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"They were very professional did their work cleaned up after they finished. Very satisfied have two friends going to contact them for air conditioning because I recommended them"





+50

Serving Dighton, 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 Dighton, MA and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
Endless Energy is a trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts with office in Marlborough, Needham, and Randolph. Specializing in Heat Pumps, Central AC, Furnaces, and Boilers, we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation.\n\nWe can help you with: \n*Heating Repairs, Installation, & Service\n*AC Repairs, Installation, & Service\n*Plumbing Repairs, Installation & Service\n*Water Heater Replacement & Service\n*Indoor Air Quality Solutions\n*Ductwork & Line Set Solutions\n*Electrical Panel Upgrades and Replacement\n*Insulation \n*No Cost Home Energy Assessments\n\nA Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!




Serving Dighton, MA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
Welcome!\n\nAt JN Service HVAC & Plumbing, we’re proud to deliver licensed, insured, and trusted HVAC and plumbing solutions to homes and businesses across Massachusetts.\n\nWith a solid reputation built on Excellence, Commitment, and Responsibility, we help you prepare your home or commercial space for the season ahead — before winter problems strike.\nOur priority is your comfort at home.\n\nWhy Choose Us?\n- 5-star Rated Company: We are a 5-star rated company with more than 1200 satisfied clients.\n- Customer Success: We focus on long-term relationships.\n- Specialist: Expert knowledge and proven skills.\n- Licensed and Insured: Our services are fully insured, providing you with peace of mind.\n- Quality in Everything we do: Best service with the best products.\n- Double-year warranty on labor.\n- Emergency Service: We're ON 24/7 to ensure your well-being.





+5

Serving Dighton, MA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Armus Mechanical is top notch! Our AC stopped working during this heatwave and they were at our home in under 2 hours. We have a medically fragile child that cannot tolerate heat and humidity, so we are beyond grateful for their services. They personally went out of their way to ensure our condenser could be replaced. Very polite, very honest and most professional. I'm not one to write reviews, but Armus Mechanical deserves this. We absolutely 100% recommend them!"





+15
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.
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