
Serving Willington, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"They did an absolutely amazing job. They were clean. They helped me out."


Serving Willington, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"They did an absolutely amazing job. They were clean. They helped me out."

Serving Willington, CT and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"Hang 7 or 8 items on the walls"



Serving Willington, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"It got done, unfortunately required a full system replacement."





+22

Serving Willington, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"They were excellent. They mounted out tv above our fireplace. It looks great. They were professional, fast and affordable."





+232

Serving Willington, CT and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"On time, professional, easy to work with, willing to trouble-shoot and think outside the box to determine the cause of the furnace problem. Had suggestions for further upkeep and service, should the time come. Replaced parts that should have been changed and/or replaced and cleaned by former company, but were neglected for the last three years. Was reassuring that the entire furnace did not need to be replaced!"
Serving Willington, CT and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
NEFTCO Mechanical Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Connecticut and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!





+10

Serving Willington, CT and surrounding areas
Approved
Emergency services offered
Warranties offered
Credit card accepted
One Hour Heating & Air Conditioning of Glastonbury is a locally owned and operated heating, cooling, and indoor air quality company serving homeowners throughout the Greater Hartford area. \n\nWe provide professional HVAC maintenance, repair, installation, replacement, and indoor air quality solutions with a commitment to dependable service, clear communication, quality workmanship, and respect for every home we enter. \n\nAs a Service-Disabled Veteran-Owned business backed by the trusted One Hour Heating & Air Conditioning national brand, we combine local ownership and accountability with proven systems, professional standards, and industry expertise. \n\nOur goal is simple: help homeowners make informed decisions about the comfort, efficiency, reliability, and air quality of their homes. \n\nAlways On Time…Or You Don’t Pay A Dime!®
Serving Willington, CT and surrounding areas
In business since 1989
Free estimates
Emergency services offered
"Work performed was very thorough and of excellent quality. The before and after pictures of the ducts taken by Anthony was most telling. They let me know the quality of the work that he did. Also, he was very pleasant and personable."

Serving Willington, CT and surrounding areas
In business since 2004
Free estimates
Emergency services offered
"The guys were on time, cheerful, thorough, and and got the job done. They were thoughtful about my cat, too. The 'sanitization' stuff they sprayed did smell for a few days, despite my airing out the house with the windows open, but it did eventually go away. And they must have gotten a lot of dust out because my children (who are usually very sneezy with the dust pumping through our house) have seemed much better since the ducts got cleaned. Very happy with the service. I used an Angie's List "deal" for the service--I was in a hurry to get it done (my kids had dropped some art supplies down a vent that were making clicking noised that were driving me nuts) so I didn't compare prices at all, I just looked for a company that seemed thorough and they they were. And the clicking sounds of rogue art supplies is gone. Yay!"





+43

Serving Willington, CT and surrounding areas
In business since 1996
Free estimates
Emergency services offered
"THEY ARE ALWAYS VERY KIND TO ME AND THEY ALWAYS GET THE JOB DONE VERY FAST. THEY ARE ALSO VERY NEAT ABOUT CLEANING UP ANY MESS THAT THEY MAY MAKE. THEY DO A FANTASTIC JOB COMING OVER AND CLEANING MY AIR DUCTS."




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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