All Seasons Air Conditioning provides expert HVAC services throughout Roslyn, Roslyn Heights, Roslyn Estates, and Roslyn Harbor — AC repair, AC installation, heating repair, boiler service, and annual tune-ups. Family-owned 58 years. Same-day service available.
We respond within 1 business hour
The "Roslyn" area encompasses four distinct communities — each with its own character, housing stock, and HVAC needs. All Seasons serves them all.
Historic village on Hempstead Harbor — charming older homes, many with original or aging HVAC systems needing expert service
Larger hamlet south of Roslyn village — diverse mix of residential housing, active LIRR commuter community
Incorporated village with Tudor and colonial-style homes — premium housing, many with boiler heating systems and no central air
Affluent waterfront village on Hempstead Harbor — large estates, boiler systems common, new ductless installations growing
From same-day AC repairs to boiler replacements and new system installations — All Seasons provides every HVAC service the Roslyn area needs, backed by 58 years of Long Island experience.
Same-day AC repair throughout Roslyn, Roslyn Heights, Roslyn Estates, and Roslyn Harbor. All brands and models serviced. Transparent pricing before work starts.
New central AC system and ductless mini split installations throughout the Roslyn area. Authorized Daikin dealer. Free estimates, financing available.
Annual AC tune-ups for Roslyn area homeowners. 21-point inspection, all brands. Book your spring service to prevent summer breakdowns.
Fast heating repair throughout the Roslyn area — furnaces, boilers, and heat pumps. Same-day emergency service. Boiler repair specialists for Roslyn Estates and Roslyn Harbor.
New furnace, boiler, or heat pump installation throughout the Roslyn area. Free estimates, financing available, most jobs completed in one day.
Ductless system installation for Roslyn Estates and Roslyn Harbor homes without existing ductwork. Ideal for historic properties and additions. Daikin authorized.
The Roslyn area sits on Nassau County's North Shore, centered around Hempstead Harbor. It encompasses a wide range of housing — from the charming historic homes of Roslyn village and the Tudor and colonial-style residences of Roslyn Estates, to the large waterfront properties of Roslyn Harbor and the more suburban mix of Roslyn Heights. All Seasons has served this entire area since 1968.
Many homes in the Roslyn area — particularly in Roslyn Estates and Roslyn Harbor — use hot water boiler systems for heating and may not have had central air conditioning installed originally. Our technicians are well-versed in both the boiler systems common to older North Shore homes and the ductless installations that are the right solution when adding cooling to a home without ductwork.
"We live in an older home in Roslyn Estates that had no central air. All Seasons installed a Daikin ductless system perfectly — clean installation, no damage to our original millwork, and the system runs quietly and efficiently."
"Our boiler in Roslyn Harbor finally gave out after 30 years. All Seasons replaced it with a high-efficiency gas boiler in one day. The install was done right, the price was fair, and heat is noticeably better throughout the house."
"Used All Seasons for a summer AC repair in Roslyn Heights. They came out same-day, diagnosed the problem quickly, and had it fixed before dinner. Honest about the repair cost and didn't try to upsell me on anything I didn't need."
We cover all of Nassau County's North Shore — including all communities surrounding the Roslyn area.
Serving Roslyn, Roslyn Heights, Roslyn Estates, and Roslyn Harbor since 1968. Same-day service, free estimates, and transparent pricing on every job.
