
Serving Hattiesburg, MS and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Emergency services offered
Credit card accepted
"Air South did a fantastic replacing old AC unit with new one."





+3


Serving Hattiesburg, MS and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Emergency services offered
Credit card accepted
"Air South did a fantastic replacing old AC unit with new one."





+3
Serving Hattiesburg, MS and surrounding areas
Approved
In business since 1985
Free estimates
Credit card accepted
With over 10 years of experience in the hvac industry, we are the experts you need to take care of your home or business. We handle everything from removal to trim to stump grinding. We will treat your home as we would treat our own. Give \nDISCOUNT SERVICES a call today, we look forward to working with you!

Serving Hattiesburg, MS and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"Excellent service! Harry and his technician Zurich were professional and courteous. I had a new A/C installed in a timely manner and at a reasonable price. I highly recommend Harryâ s Heating and air to anyone needing a new unit or repairs."

Serving Hattiesburg, MS and surrounding areas
In business since 2006
Free estimates
Credit card accepted
"Perfect! They arrived when they said they would and installed the unit quickly then took time to explain the unit’s features and how to use the remote to control the unit, Everyone was very nice, polite, professional and overall, I had an excellent experience with Air Maintenance. Would choose them again without reservation! Excellent!"
Serving Hattiesburg, MS and surrounding areas
In business since 2010
Emergency services offered
Warranties offered
Jackson Sheetmetal & Air Conditioning, is 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 Hattiesburg, MS and surrounding areas
In business since 2021
Free estimates
Credit card accepted
Rushing Electric & Air-Conditioning is 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 Hattiesburg, MS and surrounding areas
In business since 1978
Free estimates
At Smith's Heating & Air Conditioning, 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.

Serving Hattiesburg, MS and surrounding areas
Emergency services offered
Credit card accepted
Meltons Air Conditioning, Heating & Electrical LLC is your go-to choice for heating a/c & electrical service and repair in Hattiesburg. With a focus on guaranteed customer satisfaction, we offer same day service at an affordable price. Let us help you with your home projects today.

Serving Hattiesburg, MS and surrounding areas
In business since 2000
"Mr. Terry and Mr. Steven are truly professionals at their work and it's amazing how well they work together like a well oiled machine. I mean it's really wonderful that they can do things like they can read each others mind, that they know what the other needs to getting the large jobs completed with no wasted time and workmanship is Superior. We had our entire A/C systems ventilation piping replaced and redesigned. The new system looks absolutely great and laid out perfectly. It looks great with no piping out of place that blew my mind how wonderful it looks and totally efficient and cools our large house everywhere. There is no dead space not getting cooling or heating throughout the house. They checked out our 2 A/C units and they needed no work. We WILL be using Magnolia Heating and Cooling services in the future for our general maintenance and any further repairs. Their labor rates are most comparable and easy on the budget. They are NOT your run in the mill company that will promise one thing and do the other, or skip out on you like Valley Ridge Construction Company. Every rating given in this review is totally honest for they deserve every star given. Thank You Terry and Steven, Mr. Robert Tommaselli"





+3

Serving Hattiesburg, MS and surrounding areas
In business since 2008
Emergency services offered
Credit card accepted
"The technician that fixed my air conditioning unit was very professional and informative he answered all my questions and knew what he was talking about I would definitely want this technician back to my house to work on any of my issues on my air conditioning unit"
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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