Cambridge's Lock & Safe Authority — Security You Can Trust
Expert locksmith services and safe solutions for homes and businesses across Greater Boston. From emergency lockouts to high-security vault installation, we do it all.
Core Expertise
From emergency lockouts to fireproof safe installation — full-service security solutions for homes and businesses across the metro.
Emergency Lockout Service
Locked out of your home, business, or car? Our mobile technicians respond fast across Greater Boston — 24/7, including holidays.
lock_openResidential Locksmith
Lock installation, rekeying, deadbolt upgrades, smart lock setup, and complete home security assessments to protect your family.
Commercial Security Solutions
Access control, master key systems, high-security locks, and commercial safe installation for offices, retail, and industrial facilities.
Safe Sales & Service
Home safes, commercial vaults, fire-rated safes, gun safes, and deposit safes. Expert installation, combination changes, and safe cracking.
25+
Years in Business
10,000+
Jobs Completed
Greater Boston's Lock & Safe Specialists
Lock & Safe Specialists
Unlike general locksmiths, we combine deep lock expertise with professional safe services — one company for all your security needs.
Fast Emergency Response
Cambridge-based mobile technicians reach you quickly across Greater Boston for lockouts and urgent security needs.
Licensed & Insured
Every technician is fully licensed and insured, with specialized training in both locksmith services and safe mechanics.
Trusted Across Greater Boston
Cambridge families and business owners rely on Metro Boston Lock & Safe for quality work and honest pricing.
"Metro Boston installed a fireproof safe in our basement and rekeyed every lock in the house. Thorough, professional, and reasonably priced. Couldn't ask for more."
Homeowner
Cambridge, MA
"They set up our master key system and installed a commercial safe for our daily deposits. Fast, reliable, and they really know their stuff."
Restaurant Owner
Somerville, MA
"I've used Metro Boston Lock & Safe for years across multiple properties. Always responsive, always fair pricing, always quality work. Highly recommend."
Property Manager
Brookline, MA
Book Your Free Estimate
Pick a time that works. We'll call you to discuss your project.
Or call us directly at (617) 354-5600
Locked out? Need a safe? Call the pros.
Fast emergency response and expert safe consultation. One call covers all your security needs.