Deadbolt Installation & Repair for New Hampshire & Maine Homes
Secure your doors with expertly installed or repaired deadbolts from A&B Lock and Security.
Deadbolts Are Your Home’s First Line of Defense
Deadbolts are one of the most important components of home security. Whether you’re upgrading an old lock, replacing broken hardware, or installing new locks on a fresh door, A&B Lock and Security brings decades of experience to ensure your home is properly secured.
We serve homeowners across New Hampshire and Southern Maine with fast, professional deadbolt installation and repair. We work with all major lock brands and door types, including wood, steel, fiberglass, and composite doors.
“They added deadbolts to all our exterior doors and made sure everything aligned perfectly. Very professional and efficient.” — Tammy Denver
When to Install or Replace Deadbolts
- New home or recently changed tenants
- After a break-in or attempted entry
- When locks are visibly worn or sticking
- As part of a security system upgrade
- For insurance compliance or code requirements
Deadbolt Services We Offer
- Single-cylinder & double-cylinder deadbolt installation
- Replacing outdated or malfunctioning locks
- Realigning misfit deadbolts and strike plates
- Matching finishes to existing door hardware
- Adding a deadbolt to a door that currently has none
- Emergency deadbolt repairsr
Testimonial:
“They fixed a door that wouldn’t close properly and replaced the deadbolt all in one visit. Really appreciated the thorough work.” — Mary Faia
Smart Options Available
Looking to go keyless? We also install WiFi-enabled deadbolts and keypads that sync with your smartphone or smart home system. Ask us about options during your service call or visit our Keyless Entry page to learn more.
Schedule Your Deadbolt Service Today
Whether you need to add a deadbolt, fix a sticky one, or upgrade to a more secure lock, A&B Lock and Security is ready to help. Call (603) 527-0192 to book your service or submit a request through our online contact form.
We proudly serve Dover, Gilford, Concord, Portsmouth, Portland, and surrounding areas across New Hampshire and Southern Maine.
