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Contact Us at Security First, an ADT Authorized Dealer, 24 hours a day, 7 days a week

ADT, LLC. – America’s leading Security Company, was founded over a century ago. For years, ADT has been the number one trusted source of protection for millions of families, homes and businesses. By signing up for ADT monitoring, you are ensuring that trained screen-shot-2016-11-18-at-2-18-56-pmprofessionals with the most sophisticated and innovative security devices are monitoring your home at all times, 24 hours a day, 7 days a week.

Address: 40 Glen Street Suite B Glen Cove, NY 11542

Phone: 1-516-342-7030

Business Hours: 24/7

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Suffolk

Amagansett

Amity Harbor

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Centereach

Centerport

Central Islip

Cherry Grove

Cold Spring Harbor

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Copiague

Corneil

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Deer Prk

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Dix Hills

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Edgewood

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Halesite

Hampton Boys

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Hauppauge

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Jamesport

Kings Park

Kismet

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Lake Groove

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Laurel

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Miller Place

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Old Field

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Orient

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Panamoka

Patchogue

Peconic

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Point O Woods

Poquott

Port Jefferson

Port Jefferson Station

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Remsenburg

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Ronkonkoma

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