Moved into a new home, changed tenants or lost a set of keys? Rekeying your locks makes every old key stop working while keeping the hardware you already have. Priority Group Locksmith rekeys locks across Boston, MA and Bowling Green, KY.
Rekeying a lock means replacing the pins inside the cylinder so old keys stop working while the lock itself stays in place. It is usually cheaper than replacing locks, and several locks can be rekeyed to work with one key. Priority Group Locksmith rekeys locks in Boston, MA and Bowling Green, KY — call (617) 834-5793.
Updated November 2026 · Reviewed by Priority Group Locksmith technicians
Inside every pin-tumbler lock is a set of small pins matched to the cuts on your key. When we rekey a lock, we take the cylinder apart and replace those pins with a new combination, then cut new keys to match. The lock looks and works the same — but the old keys no longer turn it.
If your locks are in good working order, rekeying is faster and usually costs less than replacing them. Replacement makes sense when a lock is worn out, damaged, low quality, or when you want an upgrade such as a grade 1 deadbolt or a keypad or smart lock. We tell you honestly which option fits your doors.
Rekeying is the moment to simplify. We can key several locks alike so one key works everywhere, or set up a master key system for rental properties and offices where each unit has its own key and the owner carries one key for all. For larger buildings see our commercial locksmith services.
For apartments, short-term rentals and multi-unit buildings we rekey between tenants, keep track of key combinations and can restrict key duplication on request.
We provide lock rekeying in Boston, MA and Bowling Green, KY, including nearby communities listed on each city page.
Usually, yes. Rekeying only changes the pins inside the cylinder, so you keep your existing hardware. Replacement costs more because it includes the new lock itself.
Most residential and commercial pin-tumbler locks can be rekeyed. Some inexpensive or damaged locks are not worth rekeying, and some high-security locks require authorized keys — we will tell you on the phone.
Yes, if the locks share a compatible keyway. We can rekey them to work with a single key, or swap cylinders where needed.
A typical home with a few exterior locks is usually done in one visit. The exact time depends on the number and type of locks.
Call and describe the job — we will tell you what it involves before anyone heads out.
(617) 834-5793