
Serving Mill River, MA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Excellent service. They came the same day that I called. Quick and painless!"





+25


Serving Mill River, MA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Excellent service. They came the same day that I called. Quick and painless!"





+25

Serving Mill River, MA 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

Serving Mill River, MA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
Here at ACB, we do everything from demolition to whole house renovations.

Serving Mill River, MA and surrounding areas
Approved
Business established in 2017 with over 20 years experience in hvac field. Residential and Commercial services available anywhere. New Installations , unit replacements , upgrades , repairs , rectify existing and continuous problems. Experts in locating and repairing refrigerant leaks , piping and troubleshooting.\nNatural gas,oil,electric,hot water,steam,domestic,hydronic,packaged, split,ahu,chillers,cooling towers,boilers,furnaces,condensate,condensing, exhaust


Serving Mill River, MA and surrounding areas
In business since 2004
Free estimates
Emergency services offered
"Great job. I previously had several cats, and they sanitized and cleaned everything. They were patient with my old house -- and it was very hot, since my air conditioning had died!! Thank you."





+43
Serving Mill River, MA and surrounding areas
In business since 2020
Free estimates
Warranties offered
"An honest assessment of my unit. Very thorough in understanding the unit and possible issue. Works fast. Should give a solid fee for service call, not $40-50. But was happy to give him the $50. Also, was given no paperwork to detail what he found or did with measurements of heat and cold air?"

Serving Mill River, MA and surrounding areas
In business since 1983
Free estimates
Emergency services offered
"The estimator came to our home as promised to review our needs for a central air conditioner and furnace replacement. He looked around including other floors, but did not perform a manual 'J' calculation. He did not feel that our ductwork return on the bedroom floor was sufficiently large enough to provide adequate cooling for this area. He proposed a 5 ton condenser. A previous contractor, who also did not perform a 'J' calculation recommended a 3-1/2 condenser. In the end we chose Fujitsu mini-split ductless systems from another contractor who did do the 'J' calculation, for cooling and supplemental heating and to keep our existing furnace for the time being as backup. I don't feel that All Phases was necessarily wrong in their proposal but my wife and I felt more excited about mini-split systems which we had not heard of before."





+6

Serving Mill River, MA and surrounding areas
In business since 2006
Free estimates
Credit card accepted
"I couldn't have been more pleased with the service from Lowe's Air Duct Cleaning. They arrived a little early (after call me to inform me they were ahead of schedule). They then proceeded to spend the next four hours very thoroughly and carefully cleaning my two HVAC systems' air ducts. My property had been recently remodeled, so there was a lot of dust, but they also found that a lot of junk had been tossed into the floor vents from workers on the project, and so they cleaned it out. Also found that my new heat pump air handler was missing a filter. Again, very courteous, very professional. I would recommend very highly, and will definitely use them again."





+14

Serving Mill River, MA and surrounding areas
In business since 2025
Free estimates
Emergency services offered
I specialize in installing and troubleshooting mini split heating and cooling systems. I also have experience working with commercial refrigeration, ice makers, soda machines. I can remove and dispose of residential a/c units. I can be reached directly by calling or texting me at 646-812-1257





+2

Serving Mill River, MA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"It ended up in a $500 deal. They ended up finding mold in the air return so they ended up doing mold remediation and then they found more and I told them to just go ahead and do what needs to be done. They seemed like they tried to up sell me a little bit. "
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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