Heating & Air Conditioning Services Across Long Island

Reliable HVAC repair, replacement and maintenance for homeowners throughout Nassau and Suffolk County — from a local, family-owned company serving Long Island since 1982.

Call or Text (631) 231-6767

Heating & Air Conditioning Services Across Long Island

Reliable HVAC repair, maintenance and replacement throughout Nassau & Suffolk County. Local and family-owned since 1982.

Call or Text (631) 231-6767

HVAC Experts You Can Trust in Nassau County and Suffolk County

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Local HVAC Service From a Team That Knows Long Island

Since 1982, Advanced Air Conditioning, Heating & Refrigeration has helped Long Island homeowners stay comfortable through hot summers and cold winters.

From unexpected repairs to complete system replacements, our team provides straightforward recommendations and dependable workmanship designed around your home, your comfort and your budget.

We proudly serve homeowners throughout Nassau and Suffolk County, including Hauppauge, Smithtown, Brentwood, Dix Hills, Deer Park, West Islip, Jericho, Syosset, Melville, Kings Park, and surrounding communities. At Advanced Air Conditioning, Heating & Refrigeration, you can expect personalized service, dependable workmanship, and comfort solutions designed to last.

Your Complete Comfort, Covered

Heating & Cooling Repairs
No heat in the middle of winter? AC not cooling during a heatwave? Our experienced team provides reliable AC repair, furnace repair, boiler repair, heat pump repair, and ductless mini split repair.
Preventative HVAC Maintenance
Routine maintenance is the key to efficiency and long-lasting performance. Our professional AC, furnace, boiler, and heat pump maintenance services are designed to reduce breakdowns and extend the life of your system.
Installation & Replacement
We specialize in AC installation, furnace installation, boiler installation, heat pump installation, and ductless mini split installation, as well as full system replacements. With over 43 years of expertise, we ensure your installation meets the highest standards for comfort, efficiency, and reliability.

Technician repairing an air conditioning unit outdoors.

Your Complete Comfort, Covered

Heating & Cooling Repairs
No heat in the middle of winter? AC not cooling during a heatwave? Our experienced team provides reliable AC repair, furnace repair, boiler repair, heat pump repair, and ductless mini split repair.
Preventative HVAC Maintenance
Routine maintenance is the key to efficiency and long-lasting performance. Our professional AC, furnace, boiler, and heat pump maintenance services are designed to reduce breakdowns and extend the life of your system.
Installation & Replacement
We specialize in AC installation, furnace installation, boiler installation, heat pump installation, and ductless mini split installation, as well as full system replacements. With over 43 years of expertise, we ensure your installation meets the highest standards for comfort, efficiency, and reliability.

Technician in blue uniform holding a clipboard and smiling.

Your Comfort, Our Promise

Whether you need a routine tune-up or an emergency repair, you can trust our team to deliver comfort you can count on. Contact us today to schedule service and discover the Advanced difference.

What Our Customers Say

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Albert Gharbin JR

I've had a couple of job done with advanced air. There response is more than acceptable. Their HVAC tech Herbie is good with repairs and explained the whole process and preventative measure to maintain our system really well. I recommend Herbie Medina highly for all of your service needs.

Scipio

I had them install a new central air system and they did a great job! Joe was great to work with and stood behind his commitments. The installers were skilled and careful in their work. So far it’s working great. Highly recommended.

Carol Conard

So grateful to Advanced Air Conditioning & Heating for the job done at my home this week. Couldn’t be happier with everything…. the office personnel and the professional technicians who did an excellent install. Thank you!!

Join Advanced Air’s Comfort Club

Keep your home comfortable year-round with professional care for your heating and cooling systems.

As a Comfort Club member, you’ll receive priority service, expert system checks, and peace of mind knowing your equipment is running safely, reliably, and efficiently.

Comfort Club Benefits Include: