Best HVAC Contractors in Garden City, NY (2026)
Garden City's housing stock skews older and larger than most of Nassau — pre-war Tudors, Colonials, and brick Center Halls with original ductwork or steam radiators. HVAC work here is rarely a like-for-like swap; it's a sizing and integration problem.
Top HVAC contractors in Garden City
Home+ Air and Heat (Homets Services, LLC)
Local Nassau-based dispatch, Manual J / D / S on every install, PSEG-LI Participating Contractor, up to 10-yr parts + labor 1–10 yrs by Home+ package (Standard / Comfort / Infinite).
See Garden City pricing & bookT.F. O'Brien Cooling & Heating
Strong on Garden City's Mitsubishi ductless and high-efficiency ducted retrofits.
Skaggs-Walsh
Deep oil-heat and boiler expertise — relevant for legacy hydronic systems and oil-to-gas conversions.
Universe Home Services
Multi-trade — useful when a Garden City project involves plumbing or electrical upgrades alongside HVAC.
Housing stock & ductwork
Many Garden City homes still run hydronic heat with cast-iron radiators and have central AC added later as a separate ducted system with undersized returns. The strongest installers either keep the boiler and tune the AC duct system independently, or propose a high-velocity (SpacePak / Unico) cooling solution that respects the architecture.
Utility & local quirks
Garden City is an incorporated village with its own building department — separate from Town of Hempstead. Oil-to-gas conversions are common here as homeowners modernize legacy heating; National Grid handles the gas-service upgrade in parallel with the HVAC work.
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FAQ — Garden City HVAC contractors
Can I add central AC to a Garden City home with radiator heat?
Yes — and the question is whether to add conventional ducted AC, high-velocity small-duct (SpacePak / Unico), or ductless Mitsubishi heads. Conventional ducting is cheapest but often requires soffits or chases that change the architecture. High-velocity preserves the look but costs more. A serious estimate compares all three.
Are oil-to-gas conversions a good idea in Garden City?
Usually yes, if gas service is already on your street. National Grid runs the service upgrade; your HVAC contractor handles the boiler or furnace replacement, the chimney liner (often required), and the venting. Manhattan-grade Garden City Tudors should get a high-efficiency modulating-condensing boiler, not a basic 80% AFUE replacement.