
Serving East Templeton, 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 East Templeton, 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 East Templeton, 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 East Templeton, 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 East Templeton, 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 East Templeton, MA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"I've been working with this organization for about 2 years, perhaps a bit more, they have always been cost effective until this recent experience, they spent ~30-45min here at the house and identified the problem as a clogged pan drain,
the charge was ~300, i asked why the "high" charge and it was broken down as ~250 to come out and provide service, and another ~40 for the cost of the gas "nitrogen" to clear the drain,
these people have always been polite, professional, and effective, but, the charges have now become cost prohibitive, if you got the money and need a someone, these people are the ones i would recommend
i did call the business and explained my concern, i was told the message would be forwarded
"

Serving East Templeton, 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 East Templeton, 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 East Templeton, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Emergency services offered
Warranties offered
"Bob was awesome and it was a great experience overall. We had 2-3 days of work lined up, and Bob was punctual, communicated well and did a solid job. Mother Nature didn’t cooperate with us when it came time to setup the lattice work under the deck, but it didn’t matter. Bob setup an outdoor awning to let him continue the job to through very rough conditions, without any complaints. After the job, I received an email with a list of future repairs that we talked about, so we have a record for a later date. I look forward to hiring Bob again soon. His pricing was fair and he was very upfront about it all."





+33

Serving East Templeton, 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

Serving East Templeton, MA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
With years of experience serving the area, we are your solution for all your home energy saving needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers. Call us today! Satisfaction guaranteed!





+19
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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