Expert Heating & Cooling in Old Westbury, NY
Nassau County • 11568
Old Westbury homeowners trust our expert HVAC technicians for premium heating, cooling, and air quality services in this distinguished Nassau County community. · Free estimates · $1,000 off install
What happens when you book in Old Westbury
Three simple steps from first click to a comfortable home — no surprises, no fees, no obligation.
1. Book online or call
Pick a time that works for you — same or next-day slots across Old Westbury. No pushy phone tag.
2. Free in-home estimate
A senior tech walks your mechanical spaces, runs a Manual J load calc, and hands you a written, itemized fixed-price quote. Zero pressure.
3. Install with $1,000 off
$0-down financing, permits handled for you, and a 10-year labor warranty on every new system we install.
What HVAC in Old Westbury Actually Looks Like
Honest notes from technicians who service Old Westbury every week — housing stock, the issues we see most, and what permitting looks like here.
Housing Stock in Old Westbury
What complicates HVAC work in Old Westbury isn't scale alone — it's preservation. Many of the large 1910s–30s Gold Coast mansions on the village's 2+ acre lots retain period-correct boilers, radiators, and detail work that modern upgrades have to respect. Alongside them, newer custom estates in the 5,000–15,000+ sq ft range add pool houses, guest cottages, and finished basements to the workload of one of Long Island's most exclusive estate villages.
Common HVAC Issues in Old Westbury
- Original 1910s–30s steam boilers and cast iron radiators requiring restoration, conversion, or hybrid heat pump pairings
- Estate-scale homes with separate guest cottages, pool houses, and garages each needing dedicated mini-splits or small heat pumps
- Multi-zone VRF (Mitsubishi/Daikin) designs with 6–12 indoor heads — common on full gut renovations
- Discreet mechanical concealment is a top design constraint — historic facades cannot show condenser pads from the road
- Line runs past 100 feet come standard on these 2+ acre wooded lots, so design margin matters
Neighborhood Notes
Wheatley Hills and the Post Road estates are the most involved multi-zone, VRF, and historic-restoration work — these are the homes where Mitsubishi Hyper-Heat, Trane modulating systems, and high-velocity solutions all get specified together. Old Westbury Village itself trends toward modern customs that are smaller than the estates, though still substantial homes.
Permits & Local Code
Plan for a double filing on Old Westbury replacements: the Village of Old Westbury permit and the Town of North Hempstead permit are both required, and the village layer brings strict design and concealment standards with it. Qualifying heat pumps remain eligible for PSEG-LI Home Comfort rebates.
Climate & Microclimate
Heavy tree cover works both ways in Old Westbury: it keeps summer temperatures moderate across the inland estate setting, but the pollen and leaf litter it drops mean condenser coils need quarterly cleaning during peak season to hold rated capacity.
Three ways to save in Old Westbury
Book a visit, claim your $1,000 off a new install, or lock in the Home+ Comfort plan — whichever fits your home best.
Priority HVAC Services in Old Westbury
Fast response times, expert technicians, and guaranteed satisfaction
Emergency HVAC Services
24/7 emergency repairs for heating & cooling systems
Heating Services
Furnace repair, heat pump installation & maintenance
Cooling Services
AC installation, repair & maintenance services
Air Quality Services
Indoor air quality testing & improvement solutions
Claim your $1,000 off in Old Westbury
Free in-home estimate. No obligation. A senior tech will call within 30 minutes with your fixed-price quote and financing options.
HVAC Services in Old Westbury
Explore our specialized HVAC services with detailed information for Old Westbury homeowners
Furnace Repair
in Old Westbury
No Heat Emergency
in Old Westbury
Furnace Installation
in Old Westbury
Heating Repair
in Old Westbury
Furnace Tune-Up
in Old Westbury
Furnace to Heat Pump Conversion
in Old Westbury
Hybrid Heating System
in Old Westbury
Heat Pump Repair
in Old Westbury
Emergency Heating Service
in Old Westbury
Heating Oil Service
in Old Westbury
Boiler Repair
in Old Westbury
AC Repair
in Old Westbury
AC Installation
in Old Westbury
AC Tune-Up
in Old Westbury
Boiler Installation
in Old Westbury
Heat Pump Installation
in Old Westbury
Mini-Split Installation
in Old Westbury
Oil to Gas Conversion
in Old Westbury
Need Help Choosing a Service?
Our HVAC experts are here to recommend the right solution for your Old Westbury home.
Proudly Serving Old Westbury and Surrounding Areas
Neighborhoods We Serve
- Old Westbury Village
- Wheatley Hills
- Post Road area
Local Landmarks
- Old Westbury Gardens
- SUNY Old Westbury
- Wheatley Hills Golf Club
- Jericho Turnpike
- Post Road
Nearby Cities
HVAC Permit Requirements in Old Westbury
Planning an HVAC installation or replacement in Old Westbury? Understanding local permit requirements is essential. Skipping permits can void warranties, create insurance issues, and cause problems when selling your home.
Jurisdiction: Village of Old Westbury
We Handle All Permits
Let us navigate the permit process for you. We know Village of Old Westbury's requirements inside and out.
- Permits included in quote
- We schedule inspections
- 100% code-compliant
Visit Our Jericho Office
Showing directions from Old Westbury, NY
Home+ Air & Heat
55 Jericho Tpke Suite 203, Jericho, NY 11753
Frequently Asked Questions
Real answers for Old Westbury homeowners, based on the homes and systems we work on every week.
Nearby Towns We Serve Near Old Westbury
We also provide expert heating and cooling services to these nearby communities
Why Old Westbury Homeowners Choose Home+ Air & Heat
We've been serving Old Westbury families with expert HVAC services for years. Our commitment to quality, reliability, and customer satisfaction sets us apart.