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Find Air conditioning pros in East Islip

Avatar for K.N. Heating and Cooling
K.N. Heating and Cooling
4.8(
353
)

Serving East Islip, NY and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Seriously a dream come true. After having multiple HVAC guys in our house to check our Lennox central air conditioning unit for a WEEK during the hottest week of summer (our house heated to 98 degrees), Kevin entered our house and turned our unit on in less than 2 minutes. He came in and he knew EXACTLY what he was doing- he spent a few minutes at our unit and got it running, then he went downstairs to check the electric base unit and he quickly found that our filter needed changing BAD. We had multiple companies telling us that we needed a new unit, and we had spent hundreds of dollars on NOTHING to find that our unit, while old (20 years), was more advanced than most as it had multiple automatic shut off valves to avoid any overheating catastrophes. Long story short, it took a few bad opinions to finally find Kevin who waltzed in and told us that we simply needed to change our filter regularly and he had our house cool within an hour. If you re on the fence, save yourself the time and money and hire him immediately. You won t regret it."
a/c change out
steam oil boiler replacement
steam oil boiler replacement
indirect hot water heater
indirect hot water heater

+13

Response time2 hrs
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Legend Air
Legend Air
5.0(
19
)

Serving East Islip, NY and surrounding areas

Approved

Free estimates

Offers commercial services

"⭐⭐⭐⭐⭐ Absolute Pros – Highly Recommend Legend Air! I cannot recommend Legend Air enough! We recently had them out to troubleshoot our central air and heating system, which ultimately required a full replacement of our outdoor condenser unit. From start to finish, the entire experience was flawless. * **Honest & Diagnostic Expertise:** The technician arrived right on time, quickly diagnosed the issue, and took the time to explain exactly what went wrong with our old unit. I never felt pressured; they laid out all our options clearly. * **Flawless Installation:** The crew that handled the condenser replacement was professional, efficient, and incredibly respectful of our home. They worked fast but didn't cut any corners, ensuring the new central AC and heating lines were perfectly calibrated. * **Top-Tier Customer Service:** Their communication was fantastic throughout the whole process, and their pricing was fair and transparent."
Ductless deep cleaning
Ductless deep cleaning
Ductless deep cleaning
Ductless deep cleaning
Ductless deep cleaning

+23

Just Rite Heating and Cooling
4.9(
131
)

Serving East Islip, NY and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Eric is very responsive when you call... Eric and his crew came on time and replaced our Central Air Conditioning System. We had one issue and they came back immediately and took care of it. Eric has great customer service and did a professional job. We would recommend him highly."
Response time5 hrs
6 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Comfort Ductwork Systems, Inc.
Comfort Ductwork Systems, Inc.
4.9(
73
)

Serving East Islip, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Jonathan and Crew did an outstanding job on my new Ductless air conditioning system. Great Price, Professional all the way and nice cleanup when done. Answered all my questions and I as their for the whole job. Highly recommend."
Condensing Boiler & Indirect Hot Water Heater
Central HVAC
Oil Fired Boiler & Indirect Hot Water Heater
New Install
Thermostat Control

+2

Response time11 hrs
Response rate86%
20 neighbors recently requested a quote
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)

Serving East Islip, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
13 neighbors recently requested a quote
Recommended by94%of homeowners
Chortani Services HVAC
4.6(
193
)

Serving East Islip, 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"
Response time4 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for Heating & Cooling Pros, LLC
Heating & Cooling Pros, LLC
4.8(
116
)

Serving East Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Moh and his partner were such sweet guys, explained everything to me before starting anything and took the time to make sure everything part of air conditioning system was cleaned and in perfect working order at the capacity the air conditioner should be working. They went above and beyond. Highly recommend them!!"
Response time4 hrs
14 neighbors recently requested a quote
Recommended by90%of homeowners
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FAQs for air conditioning projects in East Islip, 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 East Islip, NY homeowners’ guide to air conditioning services

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