Serving Norristown, PA and surrounding areas
Approved (Corporate)
In business since 1966
Free estimates
Emergency services offered
"Fine but I'm still waiting almost 2 weeks for an estimate on parts that need to be replaced in my air conditioner."
+3
Serving Norristown, PA and surrounding areas
Approved
In business since 2006
Emergency services offered
Credit card accepted
"I have been using East Coast Comfort for heating and air-conditioning for years and I have always been pleased. They installed a new system for us years ago, did it for far less than other estimates we received, and we have reduced our energy costs because of it."
Serving Norristown, PA and surrounding areas
Approved (Corporate)
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 Norristown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"My central air unit was blowing hot air. It would not go below 81 degrees. Thank goodness for Travis and McKayla. The showed up promptly for an emergency appointment. They were curious and knowledgeable. They explained to me all the steps towards getting my central air unit working again. Within a couple of hours they replaced the part needed and the a/c was back !!!!! Thanks guys you are awesome."
+14
Serving Norristown, PA and surrounding areas
Approved
In business since 2005
Warranties offered
Small jobs welcome
"I'm very happy with Greg's service. He took the time to explain the problem with my AC unit, repair it very quickly and the price was excellent. From now on I will call Greg for all my HVAC needs. Highly recommended if you are looking for great service and you value honesty. Thank you Greg, I will be contacting you in the future."
Serving Norristown, PA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"We recently moved into a house built in 1987 with the original air conditioning unit, which constantly ran without stopping. It was a brutal summer, but it was definitely not running properly. Joe came out himself to take a look. He took a look at the entire system and suggested that we service the AC to make it function properly and not constantly run. He also changed the air filter in the furnace. I appreciated the fact that he did not push a new air conditioning system in the house considering the unit we have is 25+ years old. He also gave us a few ideas on how to make our home more energy efficient. He did a great job.
"
+6
Serving Norristown, PA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Great guys to work with. Installed 2 AC units and a furnace in one day with only 2 days notice in the middle of July. All at a decent price."
Serving Norristown, PA and surrounding areas
Approved
In business since 1985
Free estimates
Emergency services offered
"I was having some issues with my air conditioner and I needed my air conditioning coil and compressor replaced. It was replaced within a day and I couldn't be happier. The technicians who installed the unit were so clean and efficient. When they left, you wouldn't have known any work was done in the house. Everyone I have dealt with at Fahrenheit has been friendly, polite and extremely knowledgeable. I now have an air conditioning unit that works perfectly and am so happy I have found a reputable company to service my heating and air conditioning unit. I would highly recommend them."
+6
Serving Norristown, PA and surrounding areas
Approved (Corporate)
In business since 1999
Free estimates
Emergency services offered
At Dilling: Heating, Cooling, Plumbing & Electrical, we provide HVAC, Plumbing, and Electrical repair, maintenance, and replacement services in the Charlotte Metro and surrounding areas. We are available to you 24 hours a day, seven days a week, and can respond to your home's service issues within 24 to 48 hours upon initial request. Give us a call today! Dilling Does It - Since 1955!
Serving Norristown, PA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"George was awesome - our air conditioner stopped working at noon and he was here by 2pm and got us back up and running by 3pm. Showed me it was just the capacitor and also alerted me to a potential other issue down the road and gave me a quote on it just in case. Pricing was reasonable and I'm gonna use him for service on my unit and furnace as well here on out. I couldn't be happier or recommend him more."
+11
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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