Serving Suffolk & Nassau County · Long Island, NY

[email protected]631-331-2102
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A1 Heating & Air Conditioning
631-331-2102

Lake Grove, Suffolk County

HVAC Service in Lake Grove, NY.

Expert heating and air conditioning repair, installation, and emergency service for Lake Grove homeowners. Licensed, insured, and family-owned since 2019.

5.0 · 230+ Google Reviews
Schedule Service 631-331-2102

What we offer in Lake Grove

Full-Service HVAC for Lake Grove Homes & Businesses.

Serving Lake Grove since 2019

Your Local Lake Grove HVAC Experts

A1 Heating & Air Conditioning has been serving Lake Grove 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 Centereach, Stony Brook, Ronkonkoma, and Selden — so wherever you are in the area, we're close by.

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6+
Years Serving Long Island
230+
Google Reviews
✓
Same-Day Service
✓
24/7 Emergency

Common questions

HVAC Questions from Lake Grove Homeowners

Do you offer HVAC service in Lake Grove, NY?

Yes — A1 Heating & Air Conditioning serves Lake Grove and surrounding communities including Centereach, Stony Brook, Ronkonkoma, and Selden. Call 631-331-2102 to schedule service.

Can you repair my air conditioner in Lake Grove?

Absolutely. We repair all makes and models of central AC systems and ductless mini-splits throughout Lake Grove. We offer same-day AC repair and 24/7 emergency service.

Do you install ductless mini-splits in Lake Grove?

Yes. Ductless mini-split systems are an excellent choice for Lake Grove homes without existing ductwork or for adding zoned comfort to specific rooms. We install Mitsubishi, Daikin, and other leading brands.

What should I do if my heat stops working in Lake Grove?

Call A1 at 631-331-2102 immediately. We offer 24/7 emergency heating service throughout Lake Grove and Suffolk County. A heating failure in winter is never something you should wait on.

Do you offer free estimates for new HVAC systems in Lake Grove?

Yes. We provide free, no-obligation estimates for new heating and cooling system installations throughout Lake Grove. We'll assess your home and give you upfront pricing with no surprises.

Get in Touch

Serving Lake Grove and all of Suffolk County. Same-day and emergency service available.

631-331-2102

Serving Lake Grove & surrounding areas

Need HVAC Service in Lake Grove?

Same-day and emergency service available. Licensed, insured, and trusted by Lake Grove homeowners since 2019.

Request a Free Estimate 631-331-2102