
Serving Riverhead, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"they did good and clean job"





+1


Serving Riverhead, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"they did good and clean job"





+1

Serving Riverhead, NY and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"I cannot thank “Natural Breeze” enough for the fantastic job they did installing my new hvac system. I had previously committed to doing business with another hvac company during the heat wave who did a horrible and incompetent job with my hvac system. It was truly a horrible experience but thank god I was able to get out and terminate my contract due to their negligence. I was referred to Luis whom I reached out to and he responded to my emergency situation quickly. He is truly a reliable professional and having talked with him he is extremely knowledgeable and informative. He is a man who works diligently and has great morals and integrity. I am a dedicated as a life long member to Luis and his team, he goes far and beyond to make sure his clients are completely satisfied and his prices are definitely reasonable. Thankyou Mr Luis and to your crew for the exceptional work that u have provided. I highly recommend this company if you are looking for a A+ hvac contractor ."





+25
Serving Riverhead, NY and surrounding areas
Approved
In business since 1992
Offers commercial services
Customers say: Quick response
"-came on time - curteous service Answer all question Discussed proble with ac system Duscussed reasonal replacement Curtesy check other ac unit for tune up Through in doing job Checked amp usage of ac Checked wire securely Remove old unit Clean up after job done No argument as reasonable offer Overall satisfied service Would recommand to use again for air condition service"

Serving Riverhead, NY and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"The company communicated clearly throughout the day about when they would arrive. The service man, Mike, was very nice and even made my dog fall in love with him! He did everything that he could to help fix our problem as it was not an easy fix. This whole experience has been a good one! Thank you Home Advisor, Surefire and Mike!"





+14

Serving Riverhead, NY and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"We had our washer hookup installed. We are very satisfied with his work. I would recommend DG hvac for simple fact he communicated well and his work was clean and fast."




Serving Riverhead, NY and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I was looking to have central air installed and came across Allined Mechanical with very positive ratings. I gave Bill a call and found he was very knowledgeable. He spent plenty of time answering all my questions. In the end I was extremely satisfied with both the price and quality of workmanship."





Serving Riverhead, NY and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
"Two days ago my central air conditioner stopped working. But today I feel lucky that Mustafa the technician from Angies list PRIME AIR LONG ISLAND arrived to service it. Mustafa was very professional and easy to talk to, he made his work look easy and got my AC working in no time. And best of all was when he handed me the repair bill, it was much lower than I expected. Mustafa is my new go to technician for Heating, Cooling and Plumbing jobs!"





Serving Riverhead, NY and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Highly knowledgeable and extremely professional company with great customer service!! Mike was such a pleasure to work with His team of experts were always so helpful and skilled. Very, very easy to recommend this company to family and friends, as the entire two day project was a seamless and positive experience! It was a true pleasure in every aspect of this HVAC job Kudos to Mike and the Professor Pipes crew!"

Serving Riverhead, NY and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"My central A/C was not blowing cold air late last year. So I waited this year to do the service that Angie offered for Spring tune up for $65. Steve called me that he would like to come to my house a couple hours early because he was in the neighborhood. So, he showed up and get to work immediately. My initial thought that I have to replace the complete AC system, but Steve checked out the outside unit and he said the unit is in good condition. Then he checked the circuit breaker and he told me that the circuit breaker was tripped so there no need to replace the system for now. He also offered a couple estimates for future works if I needed to replace either the complete system or just the outside AC unit. And he also explained the pros and cons of the costs of both. I would definitely hire them again or any repairs in the future.
"





+8

Serving Riverhead, NY and surrounding areas
Approved
In business since 2012
Free estimates
Customers say: Quick response
"Ray was friendly and very professional and you can tell immediately that he was very customer oriented. As far as prices go, he was more than fair compared to the other bids. As a matter of fact I expanded the scope of his work to include a new water heater too. All the equipment supplied was 100% new, still in the factory cartons and the installation work was TOP QUALITY. Ray not only sold me the job but he did the installation too. He and partner Ken, and their assistant (3 man crew total) worked very professionally and effectively. Needless to say I HIGHLY RECOMMEND THEM."



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.
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