Serving Durham, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Small jobs welcome
"Sam at Lakes Region HVAC was very attentive and professional. The heat pump installation was reasonably priced and completed quickly. Thanks, Sam!"
+5
Serving Durham, 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 Durham, ME and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Love the ceiling application type of air"
+12
Serving Durham, ME and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Josh installed a new water heater, provided us with instructions on proper use and maintenance and has serviced it since. He is honest, thorough, and trustworthy. He also maintains my dad’s HVAC needs too. He has come out for emergency calls too. Suggest things to prevent future additional repair expenses. His prices are reasonable, especially for the personal, friendly customer service and service provided. I would highly recommend Northwoods HVAC."
Serving Durham, ME and surrounding areas
Approved
In business since 2002
Small jobs welcome
Customers say: True professional
"Not finished yet, contractor will return with modern outlets and fixtures."
Serving Durham, ME and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"They were super helpful and the staff was so nice I recommend Able Trades to everyone they installed 2 heat pumps in my home and they are amazing iam so thankfull"
+1
Serving Durham, ME and surrounding areas
Approved (Corporate)
In business since 1988
Emergency services offered
Warranties offered
"They replaced my furnace and put in central air. They took the time to ask where I wanted things put. They showed up on time and when they left everting was clean exelant job"
+24
Serving Durham, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"Josh was great to work with. He was very responsive, fair and followed through on exactly what was needed (drywall finishing) under a tight deadline (with a tenant about to move in) and with a great attitude and attention to detail. There was an additional job (building a firewall in the attic- not the best of conditions) which he took on even though it meant adjusting his schedule. I would recommend Josh as a skilled and reliable contractor with a great work ethic and positive can do attitude."
+104
Serving Durham, ME and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Michael does high-quality work. He is conscientious, thoughtful , reliable, personable and punctual. We hired Michael to build a car port. The finished project is excellent. I recommend Michael without reservation and will hire him again for any future project."
Serving Durham, ME and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
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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