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Find Air conditioning pros in Greenport

Chortani Services HVAC
4.6(
193
)

Serving Greenport, NY and surrounding areas

Approved

In business since 1992

Offers commercial services

Customers say: Quick response

"I had a really positive experience with Chortani. I needed a central air conditioning system totally replaced and Mongi did a professional, clean, thorough installation. He came when he said he would come, and performed the job on time and in the given time frame. The one thing that I appreciated was his honesty and integrity in performing this replacement. I have to say, Chortani did a wonderful job and I am really pleased. I recommend Chortani 100%."
Response time4 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)

Serving Greenport, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"communication I found was poor. I felt I needed to reach out to them instead of them reaching out to me when I was the customer. at one point, figured I had not heard from them and was ready to just find someone else. I had to call them and when I did reach them wasn't even sure they knew who I was. they gave me a quote on 2 unit choices with nothing more than the price and the manufacturer, I had to call them to get more info on the units and do my own research. other than communication, things went well, clean, on time, polite, fair price,"
Additional Photos
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+1

3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Natural Breeze LLC.
Natural Breeze LLC.
4.9(
16
)

Serving Greenport, NY and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"So quickly and amazing. Natural breeze came next day to get me a new hot water heater. Mine was leaking and making a mess in my basement and Natural breeze came to the rescue. Excellent service."
Heating & A/C Project
Heating & A/C Project
Additional Photos
Additional Photos
Additional Photos

+25

6 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Cocos Custom Building LLC
Cocos Custom Building LLC
4.8(
8
)

Serving Greenport, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"We hired Coco’s Custom Building on 2 separate occasions. We needed our roof redone and later decided to hire them to replace a dozen windows in our home. The owner Keith provided us with a great quote each time and was able to schedule the work right away. Any questions or concerns I had were addressed immediately which made the renovation go smoothly. I would definitely recommend Coco’s Custom Building and look forward to using them with my future home renovations."
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel
Modular Set And Exterior Finish Project
Exterior Remodel

+31

Response time12 hrs
29 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Long Island HVAC
Long Island HVAC
3.8(
6
)

Serving Greenport, 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."
 Fujitsu Ductless heat pump in a classroom
Service call for a system low on refrigerant
Solar powered attic exhaust fan
Recommended by66%of homeowners
Neftco Mechanical LLC
5.0(
1
)

Serving Greenport, NY and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

NEFTCO Mechanical Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Connecticut and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

HVAC!
HVAC!
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HVAC!
HVAC!

+10

Recommended by100%of homeowners
HomeServe of Long Island
2.5(
1
)

Serving Greenport, NY and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

HomeServe Energy Services (HES) provides reliable heating and cooling experts that service over 1,000 communities in 26 counties across New York, Massachusetts and Rhode Island, from five “depot” sites supporting metro New York, southern New Jersey, Rhode Island and eastern Massachusetts. With almost 200 technicians (including certified refrigerant handling technicians and NATE-certified technicians), HomeServe provides emergency heating, cooling and water heater repairs as well as tune-ups and new equipment installations.\n

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FAQs for air conditioning projects in Greenport, NY

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.

The Greenport, NY homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.