Serving Suffolk & Nassau County · Long Island, NY
East Setauket, Suffolk County
HVAC Service in East Setauket, NY.
Professional heating and air conditioning repair, installation, and emergency service for East Setauket homeowners. From older historic homes to newer developments — we tailor every service to your property.
What we offer in East Setauket
Full-Service HVAC for East Setauket Homes & Businesses.
Serving East Setauket since 2019
Your Local East Setauket HVAC Experts
A1 Heating & Air Conditioning has been serving East Setauket and the surrounding Suffolk County area since 2019. As a family-owned business, we understand the unique heating and cooling needs of Long Island homes — from older oil-heated colonials to newer construction with central air.
We also serve nearby Stony Brook, Setauket, Old Field, and South Setauket — so wherever you are in the area, we're close by.
Common questions
HVAC Questions from East Setauket Homeowners
How fast can you respond to HVAC repairs in East Setauket?
We offer prompt service throughout East Setauket and the surrounding area, including same-day and emergency appointments when available. Call 631-331-2102 and we'll get a technician to you as quickly as possible.
Do you install new air conditioning systems in East Setauket?
Yes. We install high-efficiency central air systems, ductless mini-splits, and heat pumps throughout East Setauket. We'll assess your home and recommend the most efficient solution for your needs and budget.
Do you service older homes in East Setauket?
Absolutely. We frequently work on older HVAC systems in East Setauket and can retrofit modern, energy-efficient solutions. Whether it's an aging boiler, an old oil furnace, or a dated central air system, we have the experience to handle it.
What HVAC brands do you service in East Setauket?
We service all major brands including Lennox, Carrier, Trane, Rheem, Daikin, Mitsubishi, and more. If a system is beyond repair, we'll give you an honest recommendation and competitive pricing on a replacement.
Do you offer heat pump installation in East Setauket?
Yes. Heat pumps are an increasingly popular choice for Long Island homeowners looking for energy-efficient heating and cooling in one system. We install and service heat pumps from leading brands throughout East Setauket and Suffolk County.
Our Services
Nearby Service Areas
Get in Touch
Serving East Setauket and all of Suffolk County. Same-day and emergency service available.
631-331-2102Serving East Setauket & surrounding areas
Need HVAC Service in East Setauket?
Same-day and emergency service available. Licensed, insured, and trusted by East Setauket homeowners since 2019.