Licensed pool companies in Nassau County

26 companies that say they serve Nassau County, with licenses checked against official county records on Sep 24, 2026.

Licensing in Nassau County

Nassau County requires home improvement contractors — including pool installers and many pool service companies — to hold a license from the Nassau County Office of Consumer Affairs. Suffolk licenses don't carry over, so a company working on both sides of the county line should hold both. Each listing shows the Nassau license number we found.

26 licensed companies

Agape Pools

Long Island, NYServes Nassau & Suffolk25+ years in business

License verifiedOnline bookingEmergency service
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Salt water systems
  • New pool construction
  • +1 more

All Island Group

Farmingdale, NYServes Nassau & Suffolk50+ years in business

License verifiedEmergency serviceRetail store
  • Weekly pool service
  • Openings & closings
  • Leak detection
  • New pool construction
  • Renovation & resurfacing

Towns: Dix Hills, Roslyn, Hewlett, Woodmere, Kings Point +5 more

Aquacade Pools

Hicksville, NYServes Nassau & Suffolk60+ years in business

License verifiedOnline bookingRetail store
  • Weekly pool service
  • Openings & closings
  • New pool construction
  • Renovation & resurfacing

Towns: Hicksville

Backyard Masters

Farmingdale, NYServes Nassau & Suffolk45 years in business

License verifiedOnline bookingRetail store
  • New pool construction

Towns: Atlantic Beach, Baldwin, Bay Shore, Bellmore, Bethpage +19 more

Big Becks Pools & Pavers

Massapequa, NYServes Nassau

License verifiedRetail store
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Safety covers
  • New pool construction

Towns: Massapequa, Massapequa Park, East Massapequa, Plainedge

Dakota Pools

Long Island, NYServes Nassau & SuffolkEst. 1995

License verified
  • Openings & closings
  • New pool construction
  • Renovation & resurfacing

Towns: Ronkonkoma, Wantagh, Babylon, West Islip, Woodmere +5 more

Dingman Pools & Spas

Bohemia, NYServes Nassau & Suffolk11 years in business

License verified
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Safety covers
  • New pool construction
  • Renovation & resurfacing

Towns: Garden City, Huntington, Oyster Bay, Port Washington, Rockville Centre +8 more

Empire Pools, Inc.

Holbrook, NYServes Nassau & SuffolkEst. 1998

License verifiedPrices publishedOnline bookingEmergency service
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Salt water systems
  • Leak detection
  • +2 more

Towns: Amityville, Westbury, Baldwin, Miller Place, South Setauket

Pool openingfrom $285 + tax

Fresh Blue Pools

West Babylon, NYServes Nassau & Suffolk10+ years in business

License verified
  • Weekly pool service
  • Openings & closings
  • Salt water systems
  • Leak detection
  • Safety covers
  • Renovation & resurfacing

Towns: West Babylon

JAS Aquatics

Huntington Station, NYServes Nassau & SuffolkEst. 2009

License verifiedRetail store
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • New pool construction

Marlin Pools, Inc.

Holbrook, NYServes Nassau & Suffolk30+ years in business

License verified
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Salt water systems
  • Leak detection
  • +3 more

Pool Doctor

East Northport, NYServes Nassau & Suffolkover 50 years in business

License verifiedRetail store
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Salt water systems
  • New pool construction
  • +1 more

Poolmasters of Long Island

Bellmore, NYServes Nassau30 years in business

License verifiedOnline bookingRetail store
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Salt water systems
  • Safety covers

Towns: Bellmore

Pools by Ricciardi and Son

Lindenhurst, NYServes Nassau & Suffolk35+ years in business

License verified
  • Weekly pool service
  • Openings & closings
  • Leak detection
  • New pool construction

Towns: Oceanside, Freeport, Merrick, Bellmore, Wantagh +15 more

Sky Blue Pools

Deer Park, NYServes Nassau & SuffolkEst. 2004

License verified
  • Weekly pool service
  • Openings & closings
  • Liner replacement
  • Heaters & heat pumps
  • Leak detection
  • New pool construction
  • +1 more

Towns: Bayville, Oyster Bay, Mill Neck, Locust Valley, Glen Cove +15 more

Browse by service in Nassau County