Serving Middlesex, NJ and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"The Service Technician Eric, performed all service in a professional manner and kept me informed as he checked the three systems. All systems are in excellent condition thanks to Alpine."
+22
Serving Middlesex, NJ and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Staff is very friendly and helpful and well-trained professionals. They serviced my appliances and solved my issues on the same day whereas other service companies would not. Liv Air is the best HVAC service provider and I highly recommend their services."
+46
Serving Middlesex, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"My AC broke this morning it was a Saturday I went to Angie s list and immediately got a response from Challenger heating And air-conditioning. They were here within an hour Fernando quickly found the problem and fixed it I am definitely going to be using this company For all my heating and cooling needs"
+11
Serving Middlesex, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"I was in desperate need of an AC unit repair and Kyle came to the rescue. Iâ ve owned my home since 2019 and have been looking for and honest and reliable AC technician. Iâ ve used a couple of other technicians but Kyle will be my go to moving forward. He kept me informed of everything he was doing and educated me on how my unit should be running. He even gave me info for what filters I should be purchasing to help my unit run efficiently. He gave me several options with regards to repairs and I went with the higher priced option because it was so reasonable and I didnâ t want to cut corners. I will be scheduling my routine maintenance with him for the summer and winter. Iâ m so happy I finally found an AC technician I can rely on. I highly recommend him."
+22
Serving Middlesex, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"I wish there were a rating higher than 5...that's how good they were. Alex S. & Dimitri were professional, courteous, timely and explained every step. I used them to clean out the dryer vent, but will also be hiring this company to clean out the air conditioning vents as well."
+369
Serving Middlesex, NJ and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"I highly recommend engaging Raynor Services for your heating/air conditioning needs. Our technician, Matt, was very friendly, courteous and efficiently diagnosed and planned the remediation of our heating problem. He took the time to point out what was wrong and provided some extra measures we could take, should we decide to, in the future. No sales pitch, no pressure to add additional costs. Extremely satisfied with Raynor’s friendly service, quick response (less than 1.5 hrs from my call) and low costs to return our heating system back in working order. We will continue to call on Raynor Sevices for all of our heating & ac needs."
+6
Serving Middlesex, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Emergency services offered
"Came immediately to pump out basement water. Replaced hot water tank, furnace, and sump pump. Also installed back-up sump pump system that works when power is out! It works by water pressure (No, I do not know how) electric source IS NOT NEEDED. Did not know this type of system existed. Price was reasonable (even tho I was in a panic). Will definitely use this company again.
"
+20
Serving Middlesex, NJ and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Our 35+ year old furnace went out last November. Artur came and evaluated our systems. We ended up installing 2 new HVAC systems. He was very thorough and explained everything, answering all our questions. The installation was on time and the crew was very competent but also neat, thoughtful and polite. The best part: our system since we bought our house was never optimal despite lots of companies working on it over the years but now for the first time, I can say WE ARE TRULY COMFORTABLE WITH THE TEMPERATURE IN OUR HOME. When the A/C is on, it is perfect and when the heat is on we are warm. I strongly recommend this company. You will be satisfied!"
+29
Serving Middlesex, NJ 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 Middlesex, NJ and surrounding areas
Approved
In business since 1991
Emergency services offered
Warranties offered
"Good Tidings is always my first choice. Brian arrived when expected then quickly diagnosed and resolved our air conditioning issue. Top quality service and trustworthy advice. Will use them again."
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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