Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Changed the brand of heat pump to be installed 24 hours before installation with no prior notice."
+5
Serving Sparks Glencoe, MD and surrounding areas
Approved (Corporate)
In business since 1945
Free estimates
Emergency services offered
"Arrived on time , very detailed on a very difficult install . The installation team checked all the boxes, I highly recommend this company for air-conditioning services."
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Fantastic company from start to finish! The gentleman who sold us the furnace, their salesman, Alex, was upfront in getting us the best price, along with a 10 yr parts and labor warranty included! The price for the furnace and installation was great, and they guaranteed apples to apples to meet any other companies cost. They offer a $100. fee if we found anyone to do it cheaper, with the same offer. They were able to schedule the intallation quickly, and did a great job intalling it. I would highly recommend using this company for your heating and air conditioning needs. Great company! Great prices! Great work! You won't be disappointed using Horizon Services! Take care....."
+27
Serving Sparks Glencoe, MD and surrounding areas
Approved (Corporate)
In business since 1982
Free estimates
Emergency services offered
"The technician who serviced our furnace did an excellent job. He is knowledgeable, efficient, and courteous. We welcome him to attend to our heating and air conditioning needs at any time."
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 2025
Emergency services offered
Small jobs welcome
"I recently had a new HVAC system installed, and I couldn’t be happier with the experience. From the initial consultation to the final installation, the team was professional, knowledgeable, and efficient. They took the time to explain all my options, helped me choose the right system for my home, and answered every question clearly. The installation was completed on schedule, and the crew kept everything clean and organized throughout the process. The system runs quietly and has already made a huge difference in comfort and energy efficiency. I highly recommend this company to anyone looking to install or replace their HVAC system. Excellent service, fair pricing, and top-quality workmanship!"
+23
Serving Sparks Glencoe, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Free estimates
Emergency services offered
"I was experiencing low water flow to my 3rd floor bedroom. Since the house is 100 years old, I assumed that the only way to repair the problem was to replace the water service lines which would have been very expensive. Brian came to the house and identified the source of the problem as the water pressure regulator. Brian replaced the regulator, drained and refilled the lines to remove air bubbles. The problem was repaired. Given the age of the house and the location of the problem most contractors would have told me I needed to replace the pipes to the 3rd floor. Brian identified the real problem and in the process saved me a lot of money. Great Job."
+55
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"I talked to several companies about a heating and air conditioning replacement. Smart Energy was more cost effective and offered the same service of larger name brand companies."
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Good quality does exactly what I need it to do. Turns off automatically once the moisture is fully out of the air. Turns on automatically in case I forget to. Amazing product."
+24
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 2000
Warranties offered
Credit card accepted
We are not happy unless you are happy! We look forward to bringing you our quality of work and excellence to your homes. Why would you look anywhere else?
Serving Sparks Glencoe, MD and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
Constellation Home, formerly BGE HOME, is your go-to home services company in the Baltimore area. We specialize in expert HVAC repair, installation, and maintenance, as well as comprehensive plumbing and electrical services. Our licensed and certified technicians are committed to ensuring your comfort with reliable, 24/7 emergency service. We pride ourselves on being on time, in uniform, and prepared to complete every job correctly on the first visit. We're proud to serve homeowners in Baltimore, Baltimore County, Anne Arundel County, Harford County, and surrounding communities. For a licensed team you can trust for your heating, cooling, plumbing, or electrical needs, contact us today.
+2
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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