Serving Gretna, NE and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1971
Emergency services offered
Warranties offered
"Helpful to get their one-year service plan that gives you complementary plumbing, heating, and A/C inpections and 15% discount."
Serving Gretna, NE and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Very professional very clean and courteous explained everything really well."
+8
Serving Gretna, NE and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Very nice young man. He did a tune up on my air-conditioner. Quick and efficient. I would definitely hire him again."
Serving Gretna, NE and surrounding areas
Approved
In business since 2025
Emergency services offered
Warranties offered
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n
Serving Gretna, NE and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Initially had them come out because our AC stopped in the dead of summer. Was so impressed by the honesty and non sale approach. My tech was there to genuinely fix my issue, did not mention an upsell once. Will not use any other HVAC company"
+6
Serving Gretna, NE and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Great experience with this contractor. I had a couple areas on the front of my home where the soffit had pulled away from the fascia and they fixed this plus a couple other areas they found. Right on time, very professional work, looks like brand new. Highly recommended."
+164
Serving Gretna, NE and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
Welcome to MD HVAC Services, serving Gretna, and the surrounding areas for over 13 years. Our experienced team of skilled professionals provides expert residential and commercial HVAC care and maintenance services. Contact us to schedule a free estimate. and lets us exceed your expectations!
Serving Gretna, NE and surrounding areas
In business since 1987
Free estimates
Emergency services offered
"The sales rep was thorough and answered our questions clearly and promptly. The installation went very smoothly, except for gashing a wall while moving the new furnace in. They repaired the wall and repainted the area. A few days later when the house wasn't heating up as quickly as it should, they sent someone out right away to find and fix the problem, which was actually a ductwork issue unrelated to the installation. Very pleased from start to finish."
Serving Gretna, NE and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"Mark is a true professional. He cleaned our A/C and furnace. Did the job better than it has been done in the past. He is courteous and polite along with cleaning up after his work. His prices are fair and he timely. I would definitely use his company again and recommend his services. Thanks Mark"
Serving Gretna, NE and surrounding areas
In business since 1999
Free estimates
Emergency services offered
"He called right away after I put in that I needed an air conditioning problem fixed. It was an emergency since it was so hot out. He came and fixed it right away! So happy to have him arrive. He was clean and professional. Would recommend to everyone."
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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