Serving Elizabethtown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 1959
Free estimates
Emergency services offered
"Wonderful to deal with. Very prompt service- everyone was so friendly and polite. They explained everything and were able to fix our air conditioning on the spot. Highly recommend."
+16
Serving Elizabethtown, PA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Working with Connelly Heating and Air Conditioning was a terrific experience. My mother had her furnace crack and become disabled right before the week of Christmas. Shannon was terrific to work with both on understanding that in the middle of December she could not go without heat, and that funds were limited. He took the time to find us a great replacement and even installed on the weekend to prevent my mother from having to stay in the cold for more than a day. Installation was incredibly quick and done well within our budget. I would recommend Connelly Heat and Air Conditioning to everyone as Shannon is terrific to work with and is there to help. Well worth more than 5 stars and will be the only person I call whenever I have issues with Heating or Air Conditioning."
+2
Serving Elizabethtown, PA and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Went very well. Tech gave great information on the condition of my unit. As well as provided guidance for upcoming repairs that may be needed."
+6
Serving Elizabethtown, PA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I would highly recommend Prime Home HVAC. Our air conditioner was out for an entire weekend. I called Nathan on Monday, by Tuesday we had relief!! Nathan and his staff were professional and paid attention to detail. The price was fair and they made it easy. I love that they are a family-owned business. You will not be disappointed."
+3
Serving Elizabethtown, PA and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!
Serving Elizabethtown, PA and surrounding areas
Approved
In business since 2024
Free estimates
Customers say: True professional
I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!
Serving Elizabethtown, PA and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
"My home air conditioning wasn't functioning properly. Will Stahl analyzed the problem and had a replacement unit installed in less than 24 hours on the hottest day of the year! You cannot get better or more reliable service that Stahl's Mechanical! And great conversation too!"
+13
Serving Elizabethtown, PA and surrounding areas
Approved
In business since 1982
Emergency services offered
Warranties offered
"Not only did they put in a new furnace, but the ducting that was in here at the house was, like 30 years old so they tore it out and re-did it with custom ducting made out of these big sheets of metal. They only charged me $3,000 for the furnace. I am glad I did because it has made a huge difference in the air quality here.
"
Serving Elizabethtown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Tash has done a great job! When I bought my house A/C unit stopped working. I searched for a local heating and air conditioner team. He was available same day, came out to check my unit and gave me reasonable quote for entire high efficiency furnace and A/C unit. I can say that he is well educated and knew what he was doing. Unit was ordered and installed with no issue. I highly recommend ATD Tech for Heating and air conditioning needs."
Serving Elizabethtown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
\nWhen it comes to your home or business, you need more than just a contractor—you need a trusted expert who delivers premium service, reliability, and long-term solutions. I specialize in HVAC, plumbing, and electrical trades, providing top-tier repair, maintenance, and future-proof planning that keeps your systems running at peak performance.\n\nNo shortcuts. No second guesses. Just unmatched expertise and a commitment to your comfort and efficiency. Whether it's an urgent repair, routine upkeep, or strategic upgrades, I ensure your property operates flawlessly—today, tomorrow, and for years to come.\n\nWhy settle for less when you can have the best? Let's build a future of reliability together.\n
+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.
From average costs to expert advice, get all the answers you need to get your job done.
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