Expert Heating & Cooling in Jericho, NY

Jericho is dominated by 1950s–60s expanded ranches, splits, and center-hall colonials in the 2,000–3,500 sq ft range, with a newer wave of 4,000–6,000+ sq ft custom rebuilds on the original quarter- and half-acre lots. The Birchwood section north of Jericho Turnpike has many original Levitt-built homes that have been heavily expanded and dormered over the decades.

• Original 1950s–60s ductwork that was never resized when homes were dormered or expanded — second-floor rooms run hot in summer and cold in winter
• Tear-down rebuilds requiring full Manual J/D/S design for high-end 5-ton-plus multi-zone systems
• Aging oil tanks and boilers throughout Birchwood being converted to high-efficiency gas or hybrid heat pump systems
• Attic-mounted air handlers in the original splits losing capacity to long, undersized supply runs
• 100-amp panels on original homes that can't carry a full heat pump conversion without a service upgrade

Birchwood is the dense original Jericho — heavily expanded mid-century homes with tight side yards and shared mechanical headaches. The newer custom rebuilds along Jericho-Oyster Bay Road and toward Brookville/Old Westbury are estate-scale work with multi-zone designs.

Jericho is in the Town of Oyster Bay — HVAC, gas, and electrical permits all route through the Town of Oyster Bay Building Division. Oil-to-gas conversions also require National Grid coordination. PSEG-LI Home Comfort heat pump rebates apply.