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Find Air conditioning pros in Mount Vernon

Avatar for Nexgen Comfort Services
Nexgen Comfort Services
4.1(
10
)
Central A/C - Service or Repair

Serving Mount Vernon, TX and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Nexgen Comfort Services 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.\n

Response time7 hrs
Recommended by50%of homeowners
Avatar for AIR NETWORK A/C & HEATING
AIR NETWORK A/C & HEATING
5.0(
10
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Mount Vernon, TX and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"I had been experiencing uneven heating and cooling and high electrical bills for many years. My unit was also almost 20 yrs old and not working very well anymore. I did my homework and decided I wanted a Trane. I contacted several companies for estimates. Air Network as the only company who contacted me in the time frame promised as well as coming out to see what my needs really were. It turned out my duct work was done improperly by the previous owner resulting in my uneven cooling. Air Network answered all my questions honestly and gave me several bids on different brands and sizes before the day was done. I still insisted on the Trane which by brand names is not the least expensive but was still at a very good price. His crew showed up on time during a day where it rained all day. They put mats on my floors and began dismantling my system. Chris the owner drove 2 hours to north Austin to pick up the unit I requested since there were no local Trane outlets and then 2 hours back to Hallettsville. They worked so efficiently I actually fell asleep in my recliner while they worked. By the end of the day I was more comfortable in my home than at anytime since I bought it. His crew were neat and courteous and left my home cleaner than when they arrived. I was so impressed by Air Networks that I will not allow any other company to service my system in the future. There were no extra or hidden costs. The job was done for exactly what the estimate was. I HIGHLY recommend Air Network. This is the first 5 star rating I've ever given a business, but Air Network truly deserves it."
Recommended by100%of homeowners
Avatar for D&D Services
D&D Services
4.7(
13
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Mount Vernon, TX and surrounding areas

Free estimates

Credit card accepted

D&D Services is a family owned and operated insulation/heating&air business. We have many years of experience with our team and we are ready to serve you the best way possibles. Our customers deal with the owners personally so you know you are getting the best possible service. Please feel free to contact us for your free same day quote and let’s cut them electric bills down. \n Services offered:\n Blow in/roll/batt insulation \n Insulation removal \n Attic sealing\n Hvac\n A/C clean outs\n A/C acid washes\n A/C and furnace mold control-prevention

Hvac
Hvac
Insulation
Insulation
Hvac

+38

Recommended by92%of homeowners
Avatar for Wetzel's Heat & Air, LLC
Wetzel's Heat & Air, LLC
4.5(
45
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Mount Vernon, TX and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"Wetzel's Heat & Air excel right off the bat. On the initial visit, Tim completed a sketch of the room layout, room dimensions, and number, size of vents. Johnny Wetzel performed air handling analysis which they recommended correct duct and vent sizes. Tim, lead installer, and Johnny is two that I trust in this business. The new system was installed professionally and completely."
Duct work
Working
Our units
Up close
Mini Split

+2

Response time11 hrs
Response rate85%
Recommended by97%of homeowners
Avatar for Troy's Heat & Air LLC
Troy's Heat & Air LLC
5.0(
15
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Mount Vernon, TX and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"There are many things I like about Troyâ s Heat and Air LLC but the top three are: 1) Professional install, 2) Commitment keepers, and 3) Great value. I originally saw their ad on Facebook and felt compelled to give them a try even though I already had a local AC company. Troy and his team came out, fixed issues we had with the main unit for some time, and installed a new mini split. I had already had 3 different people come out but it wasnâ t until Troy and his team came out that the installation looked professional done and safe. Anyway, as we have been remodeling for the past 2+ years we have had lots of contractors out and I believe Troy was probably the only one that really kept his promises to us and completed the job they were hired to complete. Thank yâ all! Hopefully God will provide and I will be able to get the unit for the barn one day!"
Old Vs New
Outdoor Unit Repair and Maintenance
Gree Mini Split Warranty Coil Replacement
Brandominium
2 Port Mini Split Install

+5

Response time4 hrs
Recommended by92%of homeowners
Avatar for LB Air Conditioning
LB Air Conditioning
5.0(
4
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Mount Vernon, TX and surrounding areas

In business since 2014

Free estimates

"I know there are a lot of good AC/Heater companies locally but Im just speaking from my personal experience with this one. Luis @ LB air came out to our place on 3 separate occasions, free of charge, to assist me with an issue that we had with our unit. He kept coming back and stayed waaaay longer than he probably should have until he found the source of the problem and got it corrected. The service was VERY professional and transparent about his procedures and prices. When it was time to pay I just knew it would be outrageous but I literally have spent more money eating out with with a group of 5 or 6 at Mighty Crab. Again, I am not knocking other companies, I am just saying that I HIGHLY recommend this one. Appreciate ya Luis."
Package unit and Metal Fa
Package unit and Metal Fa
Package unit and Metal Fa
Compressor Replacement
90% Gas System Installati

+2

Response time6 hrs
Response rate100%
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Mount Vernon, TX and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Jim was very helpful and personable to work with.  I had recently moved to the Huntsville area and was unable to connect my wireless printer.   There were also some things going on with my laptop that made me suspect a virus had somehow gotten on to it, it was running more slowly than usual, and I wasn't happy with the Win7 configuration I had done when I bought the computer.  Jim came in and assessed the problems and we agreed on a time for him to take the laptop and reinstall the OS.  He was able to get the wireless connection to work as well.  He took the computer on a Friday evening and returned it Sunday evening in prime condition. 
A few weeks later I  got an error message while reinstalling my accounting software so I called Jim.  He talked me through the problem over the phone and I was able to get the program installed so I could use the program.
Jim is great to work with, his pricing is very fair, he is prompt and reliable.  I will definitely use his services again.
"
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Wolfe City Heating & Air
4.2(
6
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Mount Vernon, TX and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Excellent job! When our AC went down, the owner Donny came out the next day, arrived on time and replaced the entire unit. He was professional and considerate. We have built 2 houses so have dealt with a lot of contractors..I’m usually mad by the end of the job..but couldn’t be happier with Wolfe City Heating & Air! We found our guy!"
Recommended by100%of homeowners
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FAQs for air conditioning projects in Mount Vernon, TX

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.

The Mount Vernon, TX homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.