Serving Suffolk & Nassau County · Long Island, NY

Heating Services
From furnace repairs to full boiler replacements, A1 Heating keeps Long Island homes warm all winter long.
What we offer
Whether your furnace stopped working on the coldest night of the year or you're planning a new heating system installation, A1 has you covered. We service all major brands and offer same-day emergency service.

Same-day service
We offer same-day service for all heating emergencies on Long Island.
Schedule ServiceCommon questions
If your furnace is over 15–20 years old, requires frequent repairs, produces uneven heat, or has significantly increased your energy bills, replacement is often more cost-effective than continued repairs. A1 will give you an honest assessment.
Most furnace replacements take one day. We'll remove your old unit, install the new system, and test everything before we leave. More complex jobs involving ductwork may take two days.
Yes. A1 repairs and replaces oil and gas boilers throughout Suffolk and Nassau County. We service all major brands and offer same-day emergency boiler repair.
Call A1 at 631-331-2102 immediately. We offer 24/7 emergency heating service across Long Island. A heating failure in winter can be a safety issue — don't wait.
Yes. Our Platinum Membership includes an annual heating tune-up, priority scheduling, and discounts on repairs. Regular maintenance extends system life and prevents unexpected breakdowns.
Ready to get started?
Contact us today for a free, no-obligation consultation on your heating system.