Serving Litchfield, CT and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"The team was super helpful and helped provide solutions to keep my family cool during the summer months. They were a pleasure to work with."
+1
Serving Litchfield, CT and surrounding areas
Approved
In business since 2022
Credit card accepted
Offers commercial services
"Held up very well. Eli was very responsive. Fit us into his schedule on a last minute notice. Checks in on his customers regularly to insure satisfaction."
Serving Litchfield, CT and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"ð   A BIG THANK YOU! ð   I would like to send a BIG THANK YOU to @Kelley's Heating & Cooling LLC. Ryan and his crew were incredibly professional from our first contact all the way through to the detailed instructions on how to operate our new cooling system. If you're in need of heating and cooling services, I highly recommend contacting them. Whether you're looking for a new installation or maintenance on your current system, Kelley's Heating & Cooling LLC is the way to go. It was truly a pleasure working with them! Thank you again, Ryan and team! ð  Â"
Serving Litchfield, CT and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Had a great experience with the 2 guys that came. One looked after the air conditioning system and the other the furnace and thermostat. found them to be knowledgeable, personably, and professional in there dealings."
+22
Serving Litchfield, CT and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"I called Airwise after my former HVAC contractor diagnosed my furnace as having a seized oil pump. They quoted me over $1,300 to replace the pump and perform other services necessary to repair my furnace. They installed the furnace less than 3 years ago and this was the second oil pump that supposedly seized. Needless to say, I fired them. When Airwise came to repair my furnace, the tech showed me the pump wasn't seized and stated it looked like it wasn't installed correctly. After spending less than an hour putting the burner back together correctly, we had heat again. I will be calling Airwise for my future HVAC needs."
Serving Litchfield, CT and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Had a gas fired combi boiler installed. David was prompt, professional, and did excellent work. He even helped me out with a problem I was having with my sump pump, free of charge. Would definitely recommend All Around Mechanical to anyone in need of HVAC work."
Serving Litchfield, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"i desperately needed gutter cleaning the day before a major storm. I spoke with Dave initially and he worked with me to make it possible and sent out his crew by the afternoon to my house. His crew was so professional and worked very hard to make sure that all the work was done for me and they cleaned up and got rid of all the mess. This company could not have been nicer and helpful. I highly recommend them and am thankful that I found their business."
+1801
Serving Litchfield, CT and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
Were dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
Serving Litchfield, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"Nixon and his crew called or emailed me before they arrived ,to power wash our deck and answered any questions in a timely manner. They were very articulate and left the area clean when they completed their work. My husband and I would highly recommend them."
Serving Litchfield, CT and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
At DYETT HVAC PRO CORP. we offer professional heating, ventilation, air conditioning and refrigeration services. We install, repair and perform maintenance on all types of equipment—from walk-in coolers, freezers, display cases and refrigerators to central units, mini-splits, rooftop units and all types of air conditioning systems, as well as any type of heating system, from oil boilers to the most modern high-efficiency models.\n\n
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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