
Serving Canton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 1966
Free estimates
Emergency services offered
"Very good service and was on time. I use Cool Ray for all my air conditioning and heating ."


Serving Canton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 1966
Free estimates
Emergency services offered
"Very good service and was on time. I use Cool Ray for all my air conditioning and heating ."

Serving Canton, GA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"A giant shoutout to Atlanta Air Authority for coming to our rescue this week. We came home from being out of town on Sunday to a hot house. Our A/C unit was toast. Their quick response and fantastic service had us back up and running with a new unit within 3 days. Canâ t say enough good things about them. Definitely check them out next time you need HVAC service!!"





+9

Serving Canton, GA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"I called R.Wiley, Heating and Air, and Leonard came out right away. Rather than immediately telling me that I needed to replace the system because it was so old, he searched first what the problem could be. He replaced a part, but it turned out that this was not going to work very well because my furnace was just too old. It helped a bit but it was only a temporary fix to keep the furnace going for a while longer. We then decided that I would have to replace the system. He did NOT charge me for the part or for the service call! The price he quoted for a new system, was very reasonable, and on top of that, he gave me a discount because I am a service contract client. Then, two days later, because of the very cold weather, my system decided to quit altogether on Saturday morning. I left a message on Leonards phone asking if they could come out the next Monday to install the new furnace instead of the Tuesday we had agreed on. He called me back a few hours later and told me that they had made some arrangements with the supplier of the furnace and that they would COME OUT THE NEXT DAY WHICH WAS A SUNDAY!!!! They installed the system on Sunday and in the evening my house was comfortably warm again! This is amazing service that you don't see very often! It made me bless the day I signed the service contract with R. Wiley Heating and Air a few years ago! I Can really recommend this company for its courteous, friendly, and professional service!"





Serving Canton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Best heating and air company I have ever used. Great customer service!"





+3

Serving Canton, GA and surrounding areas
Approved (Corporate)
In business since 1898
Free estimates
Emergency services offered
"The tenant in my rental property stated she had no cold air blowing. That day I called around for estimates and times to get to it, in busy hot July. I spoke with Moncrief early in the afternoon, and they were able to come out that evening and fix the issue - for a reasonable price, with honesty and integrity. Thanks.
"




Serving Canton, GA and surrounding areas
Approved (Corporate)
In business since 2011
Emergency services offered
Credit card accepted
"I am very satisfied with the product and the service provided by Cool Air Mechanical and their technician, Sean Haynes. Sean did an excellent job of installing an air purification system. Sean also performed the annual checkup on my A/C system. I highly recommend Cool Air Mechanical and especially Sean for any air conditioning service."





+35

Serving Canton, GA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!





+27

Serving Canton, GA and surrounding areas
Approved
In business since 2014
Credit card accepted
Offers commercial services
We're committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Serving Canton, GA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"Top notch company - installed our new AC/Heating units two years ago. I was a bit pricey, but has performed flawlessly. Subsequent service calls have been reasonable and professional. Highly recommend."

Serving Canton, GA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
Cheeky Heating, Cooling & Plumbing is a family-owned, premium home service company that's served Forsyth, North Fulton, Cherokee, Dawson, Hall, and Northwest Gwinnett Counties for over 25 years, backed by 2,700+ Google reviews. Our 35+ in-house technicians (no subcontractors) handle AC and furnace repair, replacement, and maintenance, heat pumps, ductless mini-splits, and indoor air quality, plus plumbing, drain cleaning, sewer line, and water heater service — every visit custom-crafted around your home, not a one-size-fits-all fix. We're licensed, insured, background-checked, and held to industry-leading standards for health, safety, reliability, and efficiency, and we back every job with our promise: We Do It Right, Or It's Free. Need help now? Call (678) 573-9699 Same-day and emergency service, upfront flat-rate pricing, free replacement estimates, and easy payment options. Ask about our membership for priority scheduling and seasonal tune-ups. Don't Go Nuts — Call Cheeky today.





+4
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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