
Serving Erwin, TN and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"Serviced the heat pumps in the house we just bought. Gave us good advice on operation and maintenance to keep the units in good condition."



Serving Erwin, TN and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"Serviced the heat pumps in the house we just bought. Gave us good advice on operation and maintenance to keep the units in good condition."


Serving Erwin, TN and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Excellent communication. Great work and very professional."

Serving Erwin, TN and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
At Phil's Heating and Air, we're excited to earn your business. Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!
Serving Erwin, TN and surrounding areas
Approved
Responsible and on time

Serving Erwin, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Credit card accepted
We are dedicated to provide quality and timely services. We have been in business for 14 years and have a total of 20+ years experience \n

Serving Erwin, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
Good day my name is Cameron I’m a jack of all trades just a little working knowledge of many trades Gaines through growing up in a construction family always helping family and learning …. With over 20 years experience and a treasure trove of knowledge to access when needed at all times I’m very confident we can accomplish Amy project large or small you wish to accomplish.. \nThank you

Serving Erwin, TN and surrounding areas
In business since 2010
Credit card accepted
"Mr. Coffee is a hero who risks his health daily to help mitigate dangerous radon problems for strangers who call for help. This is a dangerous job with daily high radon exposure and when I asked, he said he is aware of the risks but gets his health scanned multiple times a year. I called Covenant Air back in December after noticing that my Safety Siren Pro radon detector kept reaching alarm. Mr. Coffee came out and assessed that I could probably fix the problem myself by sealing some obvious cracks, especially around some pipes, and recommended the products so that I can do it cheap DIY. He was obviously not pushy to scare people into signing contracts, but actually tried to dissuade me from hiring him right off on installing sub slab depressurization. Although the DYI route he recommended would've been cheaper, I hired him to performs the job. The sealing did bring the radon level down where my detector's alarm didn't go off, but I wanted to lower it as much as possible. He then recommended a passive ventilation route given my reading. The passive ventilation again slashed the radon level in half, but I wanted the radon level down even further, so I ultimately opted to install the fan after weeks of data collection and analysis. He installed the fan so that I could easily turn it off to save energy based on seasonal variations. He is a very personable and methodical person, and prefers to monitor the progress of his work so that his customers don't hastily incur unnecessary cost. You almost never see someone like that in the service industry, and I cannot recommend him highly enough.
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Serving Erwin, TN and surrounding areas
In business since 2024
Free estimates
Emergency services offered
"Did great job , very professional and helpful."

Serving Erwin, TN and surrounding areas
In business since 2017
"Mr Justice was very professional when arriving to inspect the hvac at my new home . He was able to share the quality of workmanship and details of the unit . Having known him for years , I knew I could trust him to be honest and fair . Pleasant experience and I highly recommend him ."





+13

Serving Erwin, TN and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"We own a home-based business which relies heavily on our computers operating efficiently. We have had a service contract with another computer repair business for several years. Recently when we were having problems with our computers, we tried contacting our service contractor multiple times. He never responded. Feeling frustrated, I contacted James at North Alabama Technical Services and explained our situation. He instantly came to our rescue. He "cleaned-up" our computers and took care of all the problems we were experiencing. He went above and beyond to help us in our dire time of need. We would strongly recommend James and his company for computer service needs. We have now retained him on a service contract and are looking forward to working with him in the future."


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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