Serving Portland, ME and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"They were great! Told me I did not need a new furnace that the one I had was one of the best and in goid condition. Saved me thousands!"
Serving Portland, ME and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"Tech was very friendly and told us exactly what he did and gave recommendations."
Serving Portland, ME and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Repairs were excellent and thorough "even well documented". The tech found units low on coolant. He identified and repaired multiple refrigerant leak points. I have dealt with many HVAC contractors over the years and Freedom Air Mechanical is one of the best. I highly recommend."
+36
Serving Portland, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Small jobs welcome
"Excellent work and a very nice guy."
+5
Serving Portland, ME and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
"Incredibly professional, always happy to answer questions. Unlike other places that install and you never hear from again, Cam, David, and crew make sure your heat pump stays in tip top shape with yearly cleanings. They even offered to clean a unit that another contractor put in a year prior who refused to come clean it. I got quotes from over 8 different companies for my second heat pump, and Heat Pumps of Maine were a clear step above the rest."
Serving Portland, ME and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
"Mike called right away to schedule work, and was able to fit me in THE NEXT DAY. Did the work for the AC unit (maintenance/clean up) and as a master electrician, was able to also re-wire us to use the nest thermostat right away, no need to wait for a different technician to come out to do the work. It was HOT up in the attic, so it was REALLY appreciated! Cleaned everything up very nicely after the job was done as well. Looking forward to him coming back to do our next project-he can do it all!"
Serving Portland, ME and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Love the ceiling application type of air"
+12
Serving Portland, ME and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"The technician that came out was amazing, nice and really knew his stuff. Everything looked very professional."
Serving Portland, ME and surrounding areas
Approved
In business since 2002
Small jobs welcome
Customers say: True professional
"He was on time and did a great job. He was honest and fixed a fan switch instead of installing a new one. He saved me money on a new fan and labor to install it. an overall pleasant experience."
Serving Portland, ME and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
+1
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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