Commercial Locksmith Services for NH & Southern ME
Professional-grade hardware, masterkey systems & expert locksmithing for your business.
Secure Your Business with Proven Local Experts
A&B Lock and Security has been trusted by New Hampshire and Southern Maine businesses for decades. Whether you manage a retail shop, office building, school, healthcare facility, or multi-unit property, we deliver high-quality, code-compliant locksmith solutions tailored to your needs.
From basic hardware installations to masterkey systems and ADA operator installs, our team brings technical skill, fast turnaround, and reliable communication to every project. We work with property managers, general contractors, business owners, and facility teams to design and maintain secure access across all types of commercial spaces.
“Richie was fantastic—professional, knowledgeable, and had our business secured in no time. Highly recommend!” — Dr. Dan & Sarah Fleming
Our Commercial Services
Masterkey Systems
Control who can access what with hierarchical key systems ideal for offices, schools, and property portfolios.
Door Hardware
Professional-grade locks, handles, closers, panic bars and more. We install, replace, and maintain all major brands.
ADA Operators
Automatic door openers and accessibility hardware installed to meet code and improve access.
High-Security Key Systems
Restricted keyways and pick-resistant locks for added protection and duplication control.
Doors & Frames
We install and service steel doors, fire-rated doors, and frames for commercial and industrial buildings.
System Design
From blueprint takeoffs to walkthroughs, we provide on-site consultation and spec planning for new builds and renovations.
Why Choose A&B for Commercial Locksmithing?
- Commercial-Grade Products
We supply and install locks, closers, levers, cylinders, and electric strikes that stand up to high-traffic use.
- Local & Responsive
With our shop in Dover and Gilford service hub, our teams can quickly respond to issues across New Hampshire and Southern Maine.
- Experienced With All Building Types
We work in schools, banks, medical centers, municipal buildings, retail, industrial spaces, and more.
- Coordinated with Other Trades
We understand project timelines and coordinate with GCs, electricians, and site managers to keep jobs moving.
- Licensed, Insured, and Code-Compliant
Your job gets done safely and to spec—every time
“Always prompt and professional. A&B is our go-to for every property in our portfolio.” — Alex Loiseau
Let’s Talk About Your Building’s Security
Call (603) 527-0192 or fill out our contact form to schedule a site visit or request a commercial locksmith quote. Serving businesses across NH and Southern ME.
