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Find Air conditioning pros in Mattituck

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)

Serving Mattituck, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Ali came over to our home when we called with a concern of the air flow in our central air conditioning system. He checked the return, the air flow, the temperature at all of the vents, and the entire system. It had more to do with the age of the system and gave us suggestions on how a different filter could increase the air flow. He did all of this and refused to take any money for his time. He is a true honest professional and someone that we would recommend to everyone."
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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(
17
)

Serving Mattituck, 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
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+25

5 neighbors recently requested a quote
Recommended by47%of homeowners
Chortani Services HVAC
4.6(
193
)

Serving Mattituck, 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 Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)

Serving Mattituck, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Called on a Sunday evening and there was a serviceman at my door by 8 AM Monday morning. Mike, the serviceman, was extremely knowledgeable, professional and courteous. Will recommend this company to anyone I know who needs air conditioning or servicing. Thanks again for the speedy service and knowledgeable serviceman who repaired the air conditioner quickly!"
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
Avatar for Long Island HVAC
Long Island HVAC
3.8(
6
)

Serving Mattituck, 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
Tri Seasonal Plumbing, Inc.
4.1(
39
)

Serving Mattituck, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

Kwik Kold Refrigeration of Suffolk, Inc.
5.0(
1
)

Serving Mattituck, NY and surrounding areas

Approved

In business since 1973

Free estimates

Credit card accepted

Kwik Kold Refrigeration of Suffolk, Inc. is proud to have established the best HVAC company on Long Island. We have serviced the area for over 40 years with a reputation for being honest and friendly to all our customers. Our main goal is to make our customers happy with whatever needs they have!

Response time5 hrs
Response rate100%
Recommended by100%of homeowners
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FAQs for air conditioning projects in Mattituck, 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 Mattituck, NY homeowners’ guide to air conditioning services

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