Main Lock Shop

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In business since 1958

Our company provides security services for residential, commercial, educational and Auto.

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CIS tracks public and private construction across NJ, NYC, Long Island, Lower Hudson Valley, Eastern PA & DE — delivering early project visibility, bid updates, and competitive insights daily. Know what's coming before your competition does.

Early insights on public & private projects
Real-time bid updates & scope changes
GC, Sub & Planholder visibility
Competitive bidding history & insights

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— Jerry Russano

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