Long Island's Trusted HVAC Experts
Professional air conditioning and heating services across Long Island — from Islip to Babylon, Smithtown to Hempstead. Open 24/7 for emergency and scheduled service.
🏠 Serving All of Long Island
Nassau County • Suffolk County • Queens • Brooklyn
Schedule Service TodayHVAC Services in Long Island, NY
From emergency AC repairs to full system installations — we cover everything your Long Island home or business needs, year-round.
AC Repair & Diagnostics
Fast, accurate diagnosis and repair for all AC brands and models. Same-day service available across Long Island.
- All brands serviced
- Same-day appointments
- Upfront pricing
AC Installation & Replacement
Energy-efficient air conditioning systems installed by certified NY technicians. New construction and full replacements.
- Top-rated brands
- Energy rebates available
- Warranty included
Heating Repair
Emergency and scheduled furnace, boiler, and heat pump repairs throughout Nassau and Suffolk County.
- 24/7 emergency service
- Gas & electric systems
- All boiler types
Heating Installation
High-efficiency heating systems that lower your Long Island energy bills. Expert installation with full manufacturer warranties.
- High-efficiency units
- Oil-to-gas conversions
- Free estimates
Indoor Air Quality
Breathe cleaner air with our filtration, humidification, and ventilation solutions designed for Long Island homes.
- HEPA filtration
- Air purifiers
- Humidity control
HVAC Maintenance Plans
Seasonal tune-ups and preventive maintenance to keep your system running efficiently year-round on Long Island.
- Spring & fall tune-ups
- Priority scheduling
- Extended equipment life
Communities We Serve on Long Island
Our technicians are stationed across Long Island for fast response times. Whether you're in Nassau County or the east end of Suffolk, we have you covered.
Don't see your town? Call us at (877) 687-0006 — we likely serve your area!
100% Satisfaction Guaranteed
We make it right — every time, on every job in Long Island.
Why Long Island Homeowners Trust Captain Heat and Air
When your AC fails in the middle of a Long Island summer heat wave or your boiler breaks during a freezing January night, you need a team that responds fast, fixes it right, and charges you fairly.
Open 24/7
Round-the-clock emergency HVAC service across Long Island — no overtime fees.
NY Licensed & Insured
All our technicians are fully licensed in New York State and carry full insurance.
5-Star Rated
Consistently top-rated by Long Island homeowners for quality and professionalism.
Same-Day Service
We dispatch technicians quickly to minimize your discomfort during breakdowns.
Transparent Pricing
Upfront flat-rate quotes — no hidden fees, no surprises on your final bill.
Locally Focused
A team that lives and works on Long Island, serving our own neighbors.
Request HVAC Service in Long Island
Fill out the form below and a Long Island technician will contact you promptly. For emergencies, call us directly at (877) 687-0006.
Get a Free Estimate
Open 24/7
Emergency & scheduled service
Frequently Asked Questions
Common questions from Long Island homeowners about our HVAC services.
Do you offer 24/7 emergency HVAC service in Long Island?
Yes — our Long Island team is available 24 hours a day, 7 days a week for emergency AC and heating repairs across Nassau and Suffolk County. Call (877) 687-0006 anytime.
Are you licensed to work in New York State?
Absolutely. All Captain Heat and Air technicians serving Long Island are fully licensed by New York State and carry comprehensive liability and workers' compensation insurance.
Do you service Islip, Babylon, and Smithtown?
Yes! We serve all towns across Long Island including Islip, Babylon, Smithtown, Huntington, Hempstead, Bay Shore, Brentwood, and many more.
What HVAC brands do you work on?
We service and install all major HVAC brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Bryant, and more. We work on both residential and light commercial systems.
How quickly can you respond to a service call on Long Island?
For emergency calls, we typically dispatch within 1-2 hours. For scheduled appointments, we offer same-day and next-day availability across most of Long Island.
Do you offer free estimates for new HVAC installations?
Yes, we provide free, no-obligation estimates for new AC and heating system installations. Contact us today to schedule your free assessment.
Ready for Expert HVAC Service in Long Island?
Whether you need emergency AC repair, a new heating system, or a routine tune-up — our Long Island team is standing by 24/7. Get your free estimate today.