
Serving Roanoke, VA and surrounding areas
Approved
In business since 1975
Free estimates
Emergency services offered
"When was all said and done, it looked like they had never been there, except for the new heat pump and air handler."





+15


Serving Roanoke, VA and surrounding areas
Approved
In business since 1975
Free estimates
Emergency services offered
"When was all said and done, it looked like they had never been there, except for the new heat pump and air handler."





+15

Serving Roanoke, VA and surrounding areas
Approved
In business since 2022
Credit card accepted
Customers say: Quick response
"Kevin helped fix my air conditioner when it stopped working. He diagnosed and fixed it quickly. His prices are the best around."

Serving Roanoke, VA and surrounding areas
Approved
In business since 1986
Emergency services offered
Warranties offered
"We moved into our house about 3 years ago and the first thing we wanted to was get a heat pump. They were very friendly. When we were about to have the heat pump installed our sewer pipes backed up we ended up having to replace our sewer pipes and the heat pump at the same time. right after we bought the house. Both companies worked with us on some payment options without financing.
about a year later we wanted to get our heat pump removed from our basement. So we asked them to come out again to see how much it would cost to have it removed. It was the same guy who came out the first time. He told us that to remove it he would have to charge us about $3800. He told us not to have them do it because he didn't want to charge us that much. He recommended an alternative for us which worked out and save us a lot of money. I will always use New River Heating and Air for my projects because I know that they will do what's best for me not just their bottom line.
"
Serving Roanoke, VA and surrounding areas
Approved
Certified hvac technician who is fast and reliable.

Serving Roanoke, VA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
Bob Garrett Services is a Class A Contractor specializing in whole-home generators, HVAC, and plumbing. For nearly two decades, weve served customers with our hallmark quality in the Roanoke, Lynchburg, and New River Valleys. Whether you need help with standby whole-home generators, tankless or conventional water heaters, HVAC, or plumbing repair, you can count on Bob Garrett Services.
Serving Roanoke, VA and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
I offer great prices that can beat the competitor and save some money in your pocket.



Serving Roanoke, VA and surrounding areas
In business since 2025
Free estimates
Credit card accepted
"I had a great experience with Vortex Air. They came to my home and professionally installed a Bosch unit. The entire process was smooth, timely, and handled with a high level of professionalism. They showed up on time, completed the work efficiently, and were very cost-effective compared to other options I looked into. I highly recommend Vortex Air for anyone looking for reliable and professional HVAC services."
Serving Roanoke, VA and surrounding areas
In business since 2006
Emergency services offered
"Keith and Mark were extremely professional. They cleaned all the ductwork and vents. The ducts had not been cleaned since the unit was installed many years ago. The difference in air quality is amazing. They made sure everything was returned to normal and the work areas were cleaned when they finished. Would highly recommend."





+2

Serving Roanoke, VA and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"It was not an air conditioning service, but gas logs."

Serving Roanoke, VA and surrounding areas
In business since 1995
Free estimates
Emergency services offered
Tilley's Htg.& Cooling will provide you with the most professional service, honesty, & integrity of any hvac contractor around. The key to our sucess is the constant training of our employees and communication with our customers. We always follow-up each installation or service call with a phone call to make sure each job was handled properly and the work was done professionally, and most importantly,you the customer are 100% satisfied. Not only are you getting professional quality, but you are getting it at some of the best rates in town, guaranteed. I assure you once you try us, you will never need another HVAC contractor again. Give us a call, you will be glad you did!
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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