Serving Strasburg, VA and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"The service was great. A professional job and explained everything as he went along. I would recommend this company for service on your Air Conditioner"
Serving Strasburg, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Offers commercial services
"I have two heat pump units in air and they have replaced both of them with no problems very professional"
Serving Strasburg, VA and surrounding areas
Approved (Corporate)
In business since 1950
Free estimates
Emergency services offered
"Tech immediately diagnosed problem that the filter needed replacement. Customer hadn’t received new filter and old filter was choking air flow."
Serving Strasburg, VA and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Please use Marquess HVAC. Great price and phenomenal service. We shopped around and these folks had the best price, availability, and Angi reviews. We are very happy with our choice of Marquess HVAC. We trust them."
Serving Strasburg, VA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Josh was a great help. Machine seems to be working well and it was very informative on how to select filters for the air conditioner system in the house."
Serving Strasburg, VA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Sean and Matt did a fantastic job installing our new air conditioning unit today. We are very please."
+11
Serving Strasburg, VA and surrounding areas
Approved (Corporate)
In business since 1951
Free estimates
Emergency services offered
M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.
Serving Strasburg, VA and surrounding areas
Approved
In business since 1976
Emergency services offered
Warranties offered
"We ended up totally replacing our heating and air-conditioning unit and everything we have done in the house has been through ET Lawson and under a warranty plan through them. We wanted the same thing. Nothing against Michael & Son. He seemed very knowable."
+11
Serving Strasburg, VA and surrounding areas
Approved
In business since 2008
Warranties offered
Credit card accepted
"I was selling my house and the inspector found the fan was venting into the attic. I needed to have a professional vent it to the outside.. The HVAC tech was on time, diagnosed the problem immediately and had it vented to the outside soffit in a less than half an hour. it looks good, not noticeable and now I meet code. I thought the price was a bit high. I have a one story ranch and all he had to do was cut a hole in the soffit, reach in and pull down the vent. Other than that he did a wonderful job and I am happy.
"
+12
Serving Strasburg, VA and surrounding areas
Approved (Corporate)
In business since 1997
Free estimates
Emergency services offered
"I had them in for a second opinion on what could be done to fix my air conditioner. The contractor I had before did not tell me the exact reason for the problem nor tell me he could fix it. They suggested the HVAC system be replaced. Parish immediately told me the problem and what could be done to fix my air conditioner. My System most likely will need to be replaced in a year or so and I was given estimates within a very short period of time that were very detailed. I had a great experience with them."
+3
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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