Serving Clear Spring, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"They are prefect! Lifetime heating and air conditioning company."
+47
Serving Clear Spring, MD and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"My technician, Lily, was right on time. It was her first time to my home and she was very friendly and informative. She explained what went wrong and also showed me how to maintain some things through my routine maintenance. My service call involved a charge as it was Service, labor plus Freon to be added to my unit and the outside unit's battery. Since I have a contract with McCrea, I was not charged for the part that was to be replaced on my unit. My house is slowly cooling down as it was 90 degrees inside my home when she arrived this morning. My house lost the air conditioning on the Fourth of July and on a very hot day. I would highly recommend McCrea Heating and Air Conditioning Services of PA."
Serving Clear Spring, MD and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"⭐⭐⭐⭐⭐ Exceptional and Honest Local Service"I cannot recommend Markool Heating & Cooling enough! They were prompt, incredibly professional, and truly care about getting the job done right without overcharging. As a smaller local business, you get highly personalized care and direct communication with the people actually doing the work. They are my go-to for all HVAC needs.""
Serving Clear Spring, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
We are a small family owned Heating, Ventilation, and Air Conditioning (HVAC) company located in Sharpsburg, MD. The business was started in 1989 under the name of RW Harrell's Pump Service Inc. when Diane Harrell and Ronnie Harrell purchased a well pump and water system business from a gentleman that was retiring. Ronnie had worked in the HVAC field from the time he had graduated from high school so it was natural to add HVAC to the services that this new company would offer. Ronnie and Diane built the company by word of mouth and continue to grow the company in this manner. Additional DBA - Harrell's Services. Additional fax - 928-492-8004
+5
Serving Clear Spring, MD 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 Clear Spring, MD and surrounding areas
In business since 2019
Free estimates
Credit card accepted
"After I was scheduled for the next day, the owner of the company contacted me to reschedule for the same day. I got three technicians out to check out my system, which needed an air filter change. Filter change complete, they tested the pressure of my system which checked out well. All it cost was for a service call. Great response and service."
+13
Serving Clear Spring, MD and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"Everything went well with our AC check-up. We would recommend Alder Cruz at American Air. He was professional, courteous and his services were reasonably priced. We've already made an appointment for the fall for him to check our heater."
+23
Serving Clear Spring, MD and surrounding areas
In business since 2002
Free estimates
Credit card accepted
"Last year, I asked this company to come take a look at a heat pump I had at a rental unit in Gettysburg. One of their technicians came out and according to my tenants, was there for less than a half hour. He recommended replacing the heat pump (which also requires replacing the inside air handler according to them). I was invoiced for this visit, and then contacted by the sales team. I talked with someone on their sales team about pricing, and they gave me fair and competitive prices on the inside and outside units. They did walk me through several options and were able to meet my time frame since I had tenants without AC in the hottest month of the year. Before spending thousands of dollars, I asked a friend of the family for a second opinion. He was able to repair the heat pump for under $350 in parts and labor. I paid him $500 for his work (since he saved me thousands!). I contacted Holztople's owner about my experience. They cancelled the invoice for the service call and sent me a certificate for $100 on a future service (which is great customer care in my opinion). It seems like they would be great to work with on a new installation. Be cautious with any tech from any company. Make sure they do their due diligence before they try to turn you over the the sales team. The heat pump is running fine almost a year later, and I have not needed to use the $100 gift certificate."
Serving Clear Spring, MD and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Very responsive to my requirements. Courteous, friendly, knowledgeable and reliable. I would definitely use this service again if needed and recommend it to my friends.
"
Serving Clear Spring, MD and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"I needed my carpet repaired because my dog made a hole in it. So I used Angie’s list to make some calls. I called on Thursday and they were able to come in the next day to check it out. The service provided was efficient and the workers were punctual. I can’t even tell that there was ever a hole in my carpet. I also liked that they were nice and friendly when I talked to them. I would definitely recommend them to others."
+29
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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