Serving Ashby, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"They did an outstanding job during the worst heatwave we may have ever had in Boston"
Serving Ashby, MA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Shawn did an excellent job of replacing my 32-yr old heating system with a 5-zone, Buderus G115, Riello Burner, SuperStor Water Heater, and a "fan-in-a-can" air intake (as furnace is in an enclosed basement closet). He really knows his stuff! He is organized and does a neat, professional job. When he was finished, he tested and marked each zone with me for future identification. I highly recommend Congers Heating & Cooling for quality workmanship and a competitive price."
+10
Serving Ashby, MA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Ken came quickly after I reached out. He helped me better understand our current AC system and made sure there’s better airflow to our first floor, which was the initial problem. He also helped me figure out that we don’t have AC to our basement and he offered some solutions. Thanks Ken!"
+12
Serving Ashby, 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 Ashby, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"Wotton Heating is our #1 go to. Fast, efficient and affordable. Great to work with."
+1
Serving Ashby, MA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"It went very well. They had a good price. They got everything done in one day. The workers were very polite and respectful in my property. I highly recommend them to all."
Serving Ashby, MA and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
Comfort Professor is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
Serving Ashby, MA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome."
Serving Ashby, MA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"
+4
Serving Ashby, MA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"Great gob , very knowledgeable definitely recommend hiring again in the future. Thanks again I have heat now woohoo!"
+20
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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