Locksmith Guarantee supports homeowners, businesses, and drivers across Baltimore County from Towson and Catonsville to Parkville and Essex. We handle re-keying, high-security locks and smart locks, storefront hardware, car keys and ignitions, and safe services.
You will get clear pricing before we start work. You will also receive an accurate ETA during our service hours. We are available Sunday through Friday, from 8 AM to 11 PM. We are closed on Saturdays.
Our licensed and insured team is BBB-accredited. They arrive in equipped service vans, so most jobs are done in one visit. We always work professionally and courteously.
Residential Locksmith Services
Re-keying and master key systems
Smart locks and keypads
Mailbox and patio locks
Safe opening and combination changes
Commercial Locksmith Services
Automotive Locksmith Services
Car key cutting & programming (transponder, remote, proximity)
Ignition diagnosis / repair / replacement
Many domestic & import models.
Emergency During Open Hours
On-call Sun–Fri, 8 AM–11 PM, with ETA and upfront quote before dispatch. Saturday closed; schedule non-priority work in advance.
Committed!
Cities & Areas We Cover in Baltimore County
Towson, Catonsville, Dundalk, Essex, Parkville, Timonium, Owings Mills, Pikesville, Randallstown, Middle River, and corridors along I-695, I-83, US-40, and York Rd.
Our residential services include:
Key Duplication and Replacement: Lost your house key? We can duplicate or replace your keys so you never have to worry about being locked out again.
Lock Installation and Repair: We install and repair a wide range of locks, including deadbolts, smart locks, and high security systems. Whether you need a new lock or your current one needs a fix, we’re here to help.
Lockout Services: Locked out of your home? Our technicians can get you back inside without causing any damage to your locks or doors.
Local Job Snippets
Re-key in Towson near York Rd
Re-pinned 6 cylinders after home purchase; keyed-alike exterior doors; 4 new keys provided.
Storefront exit device in Catonsville (US-40)
Installed panic bar and adjusted closer for smooth egress.
Car key by I-695/Parkville
Cut and programmed a proximity key; verified remote lock/unlock and immobilizer pairing.
Commercial Locksmith Services
For businesses in Baltimore, MD, security is critical. We offer comprehensive commercial locksmith services designed to protect your assets, employees, and property. Our commercial locksmiths specialize in installing and maintaining high-security locks and access systems that meet the unique needs of your business.
Automotive Locksmith Services
Automotive locksmith services in Baltimore, MD can save you from the stress of being locked out of your vehicle or dealing with a malfunctioning ignition. Whether you’ve lost your keys or broken them in the lock, our expert technicians are here to assist you.Frequently Ask Questions
5442 Stream Bank Ln, Greenbelt, MD 20770
(240) 931-0762
locksmithguarantee1@gmail.com