
Serving Varnell, GA and surrounding areas
Approved
In business since 1971
Free estimates
Warranties offered
"Work is not done yet."




Serving Varnell, GA and surrounding areas
Approved
In business since 1971
Free estimates
Warranties offered
"Work is not done yet."


Serving Varnell, GA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Very happy with services rendered. They were prompt and completed all work thoroughly. Also respectful of being in our home and made sure to clean up once work was finished!"





+17

Serving Varnell, GA and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
When it comes to heating and cooling issues, we're who your neighbors call. Call us today to schedule your service!

Serving Varnell, GA and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
Carpentry is my primary background. Built cabinets and did custom bathroom and kitchens for 9 yrs. Switched trades and now have been an electrician for 5. Very well rounded and can tackle most of your needs





+17

Serving Varnell, GA and surrounding areas
In business since 1988
Emergency services offered
Credit card accepted
"my air conditioning went out at my house and these guys were really fast help me out with a few things that I needed. My air conditioning system up and going and we are now Cooling and don't have any problems if you guys need any company that is honest reliable fast in time all these guys they will take care of you"





+5

Serving Varnell, GA 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 Varnell, GA and surrounding areas
In business since 2003
Free estimates
Emergency services offered
"The air quality was better and the deck was very clean. They were very professional, courteous, polite and they knew what they're doing."
Serving Varnell, GA and surrounding areas
In business since 2006
Emergency services offered
Credit card accepted
"I joined Angie's List to find someone that worked on portable air conditioners. My brother took the unit apart to get to the blower wheel - but he told me that he didn't think that he could get to the damaged part and even if he did, he wasn't sure he could put the unit back together. My brother can fix anything, so when he gave up, I knew that I needed a professional. I liked the reports posted for "On Call Maintenance", so I called (on a Saturday) & left a brief message about what I needed. In a very short time, Steve returned my call & he told me he felt confident that he could replace the part & put the unit back together. I ordered the blower wheel & received it on the following Wednesday. I called Steve & made an appointment for the next day at 10AM. Steve had the part replaced and the unit working within an hour. He was professional, courteous, punctual, & returned/answered all of my calls. My unit works great & Steve even installed the hoses & weatherized the windows better than they were before. I will definitely call on Steve in the future. In fact, I have a plumbing problem in my kitchen - I think I'll call him now."

Serving Varnell, GA and surrounding areas
In business since 1999
Free estimates
Emergency services offered
Heating air & refrigeration company. 6 employees \nWe are member of TVA quality contractor network , energy star certified, state contractor license, Chattanooga master mechanical and gas fitter license, EPA certified, Nate certified, geo thermal fusion certified.


Serving Varnell, GA and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"Scott did an excellent job. He was very professional and even made recommendations on how to improve the quality of air in our home, in addition he took his time and the pricing was very reasonable. I would highly recommend this company to anyone that is looking for air duct cleaning."
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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