Serving Dillsburg, PA and surrounding areas
Approved
In business since 1988
Free estimates
Emergency services offered
"Mike did a fantastic job of installing our furnace and air conditioning units. Highly recommend Mike"
Serving Dillsburg, PA 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 Dillsburg, PA and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"Aaron and his crew were very helpful in answering all our questions regarding the installation of a new heat pump system. They were professional and very neat during the installation process. We had reviewed quotes from several other companies, and decided that Comfort Zone was the best fit for our needs."
Serving Dillsburg, 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 Dillsburg, PA and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
"Pricing was good, willing to work around personal schedules, easy to contact, just finished installing central air with duct works and is working great"
Serving Dillsburg, PA and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"H L Bowman is by far one of the best service companies that I have dealt with. I got a call that the technician was on the way to my house. George showed up and got right to work. Found my problem and explained to me the best way to fix my issue. They did not try to sell me on any pricier fixes. George showed me what he could offer and explained what would be my best option. He was knowledgeable, informative, and explained everything so that I would understand what was going on. I am definitely going to be using them for all my heating and air conditioning needs. Top notch company. Would recommend to anyone needing this kind of help."
+6
Serving Dillsburg, PA and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"It was a superb experience. From the visit by Bruce the sales representative to the installation day to the follow-up from Petro, every single person we interacted with was helpful and professional. When Bruce arrived to do the assessment, we spent time going over the heating needs in the house. After a thorough inspection and measurement of the house, we sat down. He showed me a few options, all of which were going to provide good service. I ordered a unit at the end of that meeting. The installation day was just terrific- the entire work crew that showed up were everything I would hope to find: Upbeat, informative, hard-working, focused. The job was finished before end of day as promised. The heater room is now immaculate, with new piping and a new heater. It was like watching a pit crew at a NASCAR race. Everyone had their tasks, they moved carefully but quickly. The materials were all laid out in order, etc. Just a totally professional approach to their work. The crew boss answered any questions I had. The follow-up for a normal inspection of the furnace chimney was scheduled the day after the installation. I’ve gotten calls to insure we are satisfied with the work. Satisfied barely covers it- I am pleased to write this kind of review. Without hesitation I will recommend Petro to friends and family throughout the Philly area. Peter A. Elkins Park"
Serving Dillsburg, PA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"After getting bids from a handful of local HVAC companies to completely replace my aging HVAC System (remove existing 30 year old oil furnace and 20 year old AC unit and install new gas furnace and heat pump) I decided to hire Aire Serv. Their quote ended up being thousands of dollars less from their competitors all while installing better, more energy efficient equipment than I was quoted from the others. They also removed my oil tank from my basement. I’m very satisfied with the work they’ve completed and the communication from the company was on point. I would not hesitate to recommend this company to others."
Serving Dillsburg, 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 Dillsburg, PA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Extremely pleased with the quickness of the response and completion of the job. Our technician was knowledgeable, friendly and efficient. He took time to explain the problem and the task needed to restore the until to full operating condition. Thanks to AJB Heating and Cooling."
+6
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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