
Serving Dallas, GA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"Checked AC, changed air filter Service was fine"






Serving Dallas, GA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"Checked AC, changed air filter Service was fine"





Serving Dallas, 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 Dallas, GA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Dean and his team did in excellent job in installing my NEW HVAC system. I had been nursing my old system for the last couple of years. I finally went to the most trusted HVAC company that have worked with for years. The new system chills my first floor down in minutes. I should have done this sooner. Thanks for the all the folks that did the work and the professional staff in the front office and Sales."





+56

Serving Dallas, GA and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
"Really impressed with the service on the furnace, highly recommend using Paze Heating and Cooling, great job."





+18

Serving Dallas, 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 Dallas, GA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Customer service was excellent. They responded quickly and was on time. Project: install air condition and heating unit."



Serving Dallas, GA and surrounding areas
Approved (Corporate)
In business since 2011
Emergency services offered
Credit card accepted
"I found Cool Air via web search for AC Tune Up. They were offering a $39 system check which worked for me. Setting the appointment was very easy and straight forward. Jerry came out the next day and called 30 minutes prior to arriving. He was gloved masked and had booties covering his shoes before entering my home. He was very knowledgeable and made a number of no pressure recommendations and system additions that I didn't feel compelled to have installed. Jerry's approach was more as a consultant vs service person. I like this and would use Cool Air in the future."





+35

Serving Dallas, GA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"I selected having my new HVAC (heatpump) system installed by Ragsdale based on the qualified sales consultation, the use of Carrier products made in the USA, and Ragsdale being a local certified family run business. My new unit was installed this morning by two technicians who worked efficiently and who kept me in the loop about the new equipment, thermostat, warranty, and FAQs. They were polite, neat & tidy. Well recommended."

Serving Dallas, 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 Dallas, 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.

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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