Serving Lincoln, DE and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Great! Very efficient and professional."
+6
Serving Lincoln, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Customers say: True professional
"Mike is a man of his word. He is honest and he gave me an excellent price on the Propane Gas Furnace and Air Conditioning system he installed."
Serving Lincoln, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Top Flight did a total install of my entire heating and air conditioning system with professionalism and answered any and all my questions when asked. I was very impressed with their work ethic and integrity. I would definitely recommend this company for any and all your HVAC concerns. Doug Mxxxxx"
Serving Lincoln, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"These technicians did a great job. The conditions were challenging but they soldiered through and got the job done in short order. The air conditioning system is up and running and cooling like it’s supposed to. Many thanks to Rob and John!"
Serving Lincoln, DE and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"I need someone to put up my curtain rods in my bedroom, 2 bedrooms as soon as possible. What will be the cost? I can be reached at 6464364205."
+25
Serving Lincoln, DE and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
"Yes he explained why electricity bill was higher than normal and how to reduce it!"
Serving Lincoln, DE and surrounding areas
Approved (Corporate)
"During this very cold winter, I wanted my HVAC system checked out, esp after the fan were frozen in place before being de-iced by me. The service person was great. He checked my system and was able to answer my questions. Thank you."
Serving Lincoln, DE and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"We were so lucky to find Horizon services to fix our air conditioning. I called at 8 am and by 2 pm our conditioning was fixed. Excellent service and communication."
+2
Serving Lincoln, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Warranties offered
"Mike did a good job. I have used him for many home projects."
+20
Serving Lincoln, DE and surrounding areas
Approved
In business since 2011
Free estimates
Customers say: True professional
"It went very well. Boni was recommended to us and he was so professional and helpful when we met that we did not ask for quotes from other companies. He did not disappoint. The only delays were due to delays with raw material suppliers. Once the work began, the crew worked incredibly hard and cleaned up after each day’s work was completed. Boni was responsive to all questions. We plan to continue hiring him as we decide on additional landscaping and yearly clean-up."
+7
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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