Serving Fitchburg, 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 Fitchburg, 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 Fitchburg, 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 Fitchburg, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"The owner is very knowledgeable and the customer service is exceptional. Pricing was more than fair!"
+1
Serving Fitchburg, MA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"Mike is extremely flexible and responsive in a time where the typical contractor is anything but these things. He came when he said he would and left nothing undone. I would work with Mike anytime."
Serving Fitchburg, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Free estimates
Warranties offered
"Absolutely a highly recommend! He called right away, understood the problem and the need for urgency and was here and had fixed my issue in under 2 hours! Highly Highly recommend!!! Thank You David M. Clay Plumbing& Heating!"
+21
Serving Fitchburg, 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 Fitchburg, 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 Fitchburg, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Emergency services offered
Warranties offered
"I recently had an old deck removed and replaced with a stone patio. The portion of my house where the deck previously contacted my house needed replacement shingles. Despite rainy weather conditions the day of the job, Bob was able to get the job done. I would highly recommend him."
+33
Serving Fitchburg, MA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"They were on time and very professional. They worked on the problem for a few hours. After he said that he couldn't fix it he called someone he knew that he said had better equipment. When they came he said the problem was already fixed. I was forced to pay a service fee to that company when in fact the problem was already fixed. My problem, although it was fixed, is that the guy didn't know that he actually fixed it which led me to think he was unsure of what he was doing. I believe this was a unique incident but overall good experience."
+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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