Serving Suffolk & Nassau County · Long Island, NY

🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧
Heating system

Heating Services

Heating Repair &
Installation.

From furnace repairs to full boiler replacements, A1 Heating keeps Long Island homes warm all winter long.

What we offer

Complete Heating Services
for Every Home.

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.

Furnace repair & replacement
Boiler repair & replacement
Heat pump installation
Radiant heating systems
Ductwork inspection & repair
Annual heating tune-ups
Emergency heating repair
New construction heating
HVAC technician

Same-day service

Need emergency heating repair?

We offer same-day service for all heating emergencies on Long Island.

Schedule Service

Common questions

Heating Service FAQs

How do I know if my furnace needs to be replaced?

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.

How long does a furnace installation take on Long Island?

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.

Do you repair boilers on Long Island?

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.

What should I do if my heat stops working?

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.

Do you offer heating maintenance plans?

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.

What is the most efficient heating system for a Long Island home?

Heat pumps are currently the most energy-efficient option for Long Island homes, especially modern cold-climate models that work effectively even in sub-freezing temperatures. Gas furnaces remain a popular and reliable choice. A1 can assess your home and recommend the best system for your needs and budget.

How much does heating installation cost on Long Island?

Heating installation costs vary based on the type of system, the size of your home, and whether ductwork modifications are needed. A1 provides free in-home estimates with transparent, upfront pricing. We also offer flexible financing options to make a new system affordable.

Why is my heating system making a banging noise when it turns on?

A banging or popping sound when your heating system starts is often caused by expanding and contracting ductwork, a dirty burner causing delayed ignition, or a failing heat exchanger. Delayed ignition in particular can be a safety concern and should be inspected promptly by a licensed technician.

Ready to get started?

Same-Day Heating Service Available

Contact us today for a free, no-obligation consultation on your heating system.