Serving Lancaster, KY and surrounding areas
Approved
In business since 2021
Emergency services offered
Small jobs welcome
"The best customer service EVER. He did a great job and made sure everything worked perfectly. We recommend him for whatever you need for heat and air from service to replacement. You can't go wrong."
+26
Serving Lancaster, KY and surrounding areas
Approved (Corporate)
In business since 2001
Free estimates
Emergency services offered
"The Comfort Heating and Air Team were punctual and fast with the install. Quoting was fair and I think I got the best deal I could at the time."
+1
Serving Lancaster, KY and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Brian Elkins and co-workers was very professional and done an excellent job installing my new A/C/heating unit. I would recommend signature heating&air to anyone needing repairs or replacement of there own unit"
+11
Serving Lancaster, KY and surrounding areas
Approved
In business since 1929
Free estimates
Credit card accepted
"The gentleman that came to do the quote was very kind and to the point. He was very professional and gave me my options. when I hired them to install my air conditioner the workers were very fast and kind. The work got done quickly and was clean. I feel I got a great deal and everyone was nothing short of helpful."
+49
Serving Lancaster, KY and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Credit card accepted
"Great and friendly! Would hire them again!"
Serving Lancaster, KY and surrounding areas
Approved (Corporate)
In business since 1976
Free estimates
Credit card accepted
"Dalton from Dauenhaur plumbing was excellent. Customer service interactions were great. Overall good experience at a good price (in my opinion)."
Serving Lancaster, KY and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
Louisville Mechanical Services is a premier HVAC contractor the state of Kentucky. We specialize commercial boiler, chillers, pumps, custom sheetmetal, industrial piping, pumps, plumbing, building automation, HVAC installs and all the above full service. We take pride in our work and we look forward to doing business with you. Give us a call today to schedule a free quote.
Serving Lancaster, KY and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"She was very helpful in explaining how the tv and sound system operated. She went well beyond to make sure I understood the system before she left."
+4
Serving Lancaster, KY and surrounding areas
Approved
I am a small business out of Estill county KY we try to offer low prices with quality work. I don’t have a ton of overhead so I can usually beat big name companies. The help I use are all family members.
Serving Lancaster, KY and surrounding areas
Approved
We are small heating and air businesses working in Lexington area and surrounding county
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.
Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.