Firstline Lock & Door — Locksmiths & Security in Hamilton Township, NJ

Firstline Lock & Door is a premier self-performed service provider for locksmith, access control, door repair, overhead door repair, and glass repair services. With over 30 years of experience, we deliver exceptional quality with a promise to provide premium solutions to meet our customer needs, honestly and reliably.

Need hardware for your hardware installer?

20% off

We also own Hinge Outlet — professional-grade hinges, handles and door hardware shipped fast. Homeowners can claim a one-time 20% code, capped at $500 in savings.

Get 20% Go to Hinge Outlet