
Serving North Granby, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"Immediately established service and explained all options"





Serving North Granby, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"Immediately established service and explained all options"




Serving North Granby, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Went very good, came in first thing in the morning and cut out old system and by late afternoon my new system was piped up and running"

Serving North Granby, CT and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"Pete, Jake and Jeremy and a couple of other workers from Cool Heat Mechanical did a great job on installing 3 central air conditioners and air handlers at my house over a 3 day period. They were neat, clean, on-time and did an excellent job installing the American Standard A/C and air handlers. The units are running great and improved my energy efficiency tremendously over my older units. Pete is extremely knowledgeable with his profession of installing A/C and heating systems. His pricing is excellent as well. We are also using them to install a new heating system within the next few weeks. We initially met with Dave who reviewed their products and gave us the pricing for the job. Dave made an excellent presentation of all their products and did not use any high pressure selling tactics. He offered some nice financing options through EnergizeCT that I was not aware of as well. I did have multiple vendors competing for the job and found that Cool Heat Mechanical was the most knowledgeable and had the best products and pricing in my area. I did a fair amount of research and this company is the one to use for your heating and cooling needs. I highly recommend Cool Heat Mechanical for your HVAC requirements."





+3

Serving North Granby, CT and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Great experience Justin, Nate & Timothy were awesome. Very knowledgeable, professional & curious. Aside from the cleanliness they delivered an experience. I highly recommend HL bowman if you want rapid service on your HVAC. Pricing was reasonable in my opinion & financing is an option. Keep in mind when seeking quotes for your HVAC repair/ new install you must consider performance over equipment, that is if your want a good system that will have a good run/life span."





+6

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



Serving North Granby, CT and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Great response time and thoroughly explained what we needed, how long it would take and cost of project. System works great and project came in lower than quoted cost and they adjusted cost accordingly. In this day and age it is great to deal with hard working honest technicians."




Serving North Granby, CT and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"We had a split air conditioning system installed. Everyone was very professional and they were very careful to clean up everything. We will definitely call them again to replace a 40 year old boiler."





+29

Serving North Granby, 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 North Granby, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"The service was great, They were punctual and kept me updated when driving over, They were efficient and I’ll be using them again. I highly recommend them."





+232

Serving North Granby, 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.
From average costs to expert advice, get all the answers you need to get your job done.

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