Lock Door Support

Welcome to Lock Door Support, your trusted locksmith in Cambridge. We provide a wide range of lock services, including master key systems, lockout services, and rekeying.

Our team of licensed locksmiths is dedicated to providing fast, reliable, and affordable solutions to all your lock needs. We serve residential and commercial clients in Cambridge and surrounding areas, including Harvard Square, Central Square, and Kendall Square.

Our services include:

Residential Master Key System Installation
Commercial Rekeying Services with Master Key Systems
Emergency Lockout Response for Master Keyed Properties
High-Security Master Key System Upgrades for Businesses
Service Price
Master Key System Installation $200-$500
Rekeying Services $50-$200