Residential
- Home lockouts
- Lock rekeying & replacement
- Smart lock installation
- Deadbolt & high-security upgrades
- Mailbox & patio door locks
North Chelmsford and surrounding areas
Expert locksmith service is one call away
From everyday lockouts to full security upgrades, our certified local technicians treat every door, lock, and key with the care it deserves.
Commercial Automotive Residential
Services we do
Complete locksmith solutions
Four core categories, one trusted local team — covering North Chelmsford and surrounding areas with care and precision.
Commercial
- Master key systems
- Access control & keypads
- Office & storefront lockouts
- Panic & exit device repair
- File cabinet & safe service
Emergency
- Emergency lockout assistance
- Broken key extraction
- Lock repair after break-in
- Eviction lockouts
- Same-day rekey
Automotive
- Car & truck lockouts
- Key fob programming
- Replacement & spare keys
- Ignition repair
- Transponder key cutting
About First Class
Trusted by neighbors and businesses across North Chelmsford and surrounding areas.
First Class Locksmith is a family-owned company built on a simple promise: honest work, fair prices, and showing up when you need us most. Our technicians are background-checked, fully certified, and trained on the latest security technology — so whether you're locked out or upgrading your business, you're in expert hands.
- Licensed & Insured
- Extended Hours
- Certified Technicians
- Family Owned
15+
Years of Experience
10k+
Jobs Completed
4.9★
Average Rating
6 Days
Open Weekly
What our customers say
Trusted by the community
4.9 average from 1,200+ reviews
“Locked out of my house late at night and they were professional and friendly. Made a stressful moment so much easier.”
“Rekeyed every lock in our new home and installed a smart deadbolt. Clean work, clear explanations, and they took the time to walk us through everything.”
“Used them for our office access control upgrade. Honest, knowledgeable, and the only locksmith I'll call going forward. Highly recommended.”
Questions & answers
Frequently asked questions
Everything our customers commonly ask. Don't see your question? Reach out and we'll happily help.