Residential Locksmith
Lock changes, rekeying, replacement hardware, key issues and general residential lock service for houses and apartments.
Call about a home →Residential, commercial and automotive locksmith service from a real Nashua shop with professional key-cutting and programming equipment.
No generic stock-photo feel. This site uses the actual 603 Locksmith storefront, workbench and key equipment so customers can immediately understand who they are contacting.
Lock changes, rekeying, replacement hardware, key issues and general residential lock service for houses and apartments.
Call about a home →Vehicle keys, remotes, key cutting and programming. Have the year, make and model ready when you call.
Lock and key solutions for offices, storefronts and business properties, including rekeying and hardware changes.
Call about a business →Change which key operates compatible locks without automatically replacing the full lock assembly.
Replace worn, damaged or outdated lock hardware for homes, apartments and commercial spaces.
In-shop key and remote work backed by professional cutting and programming equipment.
See our equipment →Actual photos from the Nashua location—storefront, work area, cutting equipment and lock hardware.

Our shop setup includes professional key-cutting equipment and supports automotive key and remote work. When calling about a vehicle, share the year, make, model and what happened to the key.
603 Locksmith is based at 12 Murphy Drive, Suite 101, Nashua, New Hampshire 03062. The list below is organized around Nashua and nearby communities in southern New Hampshire and across the Massachusetts line. Call to confirm service at your exact address.
Not seeing your town?
Home, automotive, commercial, rekeying, lock change or key / remote work.
Tell us what happened, the property type or vehicle information and your location.
Call directly or submit the form so the job can be discussed based on the actual details.
These quick answers help you know what information to have ready.
The vehicle year, make, model, your location and whether you have any working key or remote available.
Yes. The site covers residential and commercial lock and key service, including rekeying and lock changes.
The shop address shown on the site is 12 Murphy Drive, Suite 101, Nashua, New Hampshire 03062. Call first if you want to confirm the right service for your key or lock.
Our working hours are 9 AM–6 PM. Call (603) 858-4159 if you want to confirm availability before visiting.
Yes. The service-area list is a nearby-area guide. Call (603) 858-4159 to confirm service for your exact address.
Call directly or send a service request with the details. For automotive work, include the year, make and model.