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Commercial Door Hardware

Mortise Lock Replacement & Repair in San Luis Obispo, CA

Call (805) 977-6159 for mortise lock replacement when a commercial door will not latch, the lock binds, or keys no longer work. We come to your business to inspect, repair, or replace the hardware.

  • Mobile service comes to you
  • Open 24 hours a day, 7 days a week
  • Within 15 minutes inside San Luis Obispo
  • At least a 6-month warranty on parts and labor

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Open 24/715 minutes in San Luis Obispo27 years of experience$29 service call

How a Mortise Lock Fits Into a Commercial Door

A mortise lock sits inside a pocket cut into the edge of a door. The lock case operates the latch or bolt, while the trim on the door lets a person turn a lever, knob, or key. This setup puts the working lock body inside the door rather than attaching the whole lock to its surface.

A commercial mortise lock is often used on frequently operated building entrances and interior doors where a sturdy, integrated lock is needed. The lock, door, frame, strike plate, and trim all have to work together: a sound lock can still bind if the door has shifted or the strike no longer lines up. Our commercial locksmith service can inspect the complete opening, not just the key cylinder.

Repair of a mortise lock

Mortise Lock Replacement Starts With Finding the Cause

Mortise lock repair may be the right choice when the lock case and door are intact and the problem comes from a worn component, loose trim, or a latch that no longer meets the strike correctly. Replacement makes more sense when the lock body is damaged, the mechanism repeatedly fails, or the available repair will not restore reliable operation. We check the lock, door edge, frame, strike, and how the door moves before recommending repair, mortise lock body replacement, or a complete lock change.

Mortise lock installation also calls for a careful fit: the lock case must sit correctly in the door, and the latch or bolt must meet the strike without forcing the door. For buildings managing access across multiple entries, the replacement should also fit the existing key plan; see our master key systems service for related access planning.

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Where Mortise Locks Matter in San Luis Obispo Buildings

Shops

A busy storefront entrance may be opened and secured many times each day. The lock needs to latch cleanly from the normal operating position, without staff having to pull, lift, or slam the door to make it catch.

Schools

A school may have mortise locks on exterior or interior doors used by staff and students. Each opening needs hardware that operates as intended, and any exit device must let people out.

Clinics and apartment buildings

Clinics need entry hardware that works consistently for staff and visitors, while apartment buildings may have shared doors used by residents throughout the day. In either setting, the lock and strike need to match the door’s movement and the way people use that entry.

Signs a Commercial Mortise Lock Needs Service

The latch misses the strike

A door that closes but does not catch may have a misaligned strike, a shifting door, or a latch problem. Check whether the gap around the door has changed; the lock may not be the only part that needs attention.

The door must be slammed to latch

A hard slam can point to resistance between the door, frame, and latch. Repeated force can put extra strain on the hardware, so arrange service rather than treating slamming as normal operation.

The lever or knob feels loose

Loose trim can make the lock difficult to operate and may signal wear or a fastening problem. A technician can check whether tightening or repair is appropriate before replacing the lock.

The key or handle binds

Stiff operation can come from the lock mechanism, but it can also happen when door pressure keeps the latch or bolt from moving freely. Note whether the problem happens with the door open, closed, or both.

The lock works inconsistently

A latch that catches only when the door is pushed or pulled a certain way is a sign to inspect the full opening. If the door is an exit, keep its required way out usable while arranging service.

Need help now? (805) 977-6159

Service area: San Luis Obispo & nearby · Open in Google Maps

Frequently asked questions

What should I do when a commercial door in San Luis Obispo no longer latches or slams shut?

Do not rely on a door that only catches after being slammed or pulled into place. Call (805) 977-6159 so we can check the mortise lock, strike alignment, and door movement; keep any exit usable while the problem is being addressed.

Can a mortise lock be fixed without closing my business?

That depends on which door is affected and whether it is needed for entry or exit. We inspect the lock and the full door opening first, so you can identify what access the work may affect and keep required exits usable.

Can you service several mortise locks in one building?

Yes, our locksmith services include commercial lock repair, replacement, and installation. For multiple doors, identify each opening and its problem—such as a binding key or a latch that misses—so the locks and any shared access plan can be considered together.

How do I know whether a mortise lock needs repair or replacement?

A repair may suit a loose trim piece, a correctable alignment issue, or a worn component when the lock body remains usable. A damaged lock case or recurring failure may call for replacement; the door, frame, and strike should also be checked so a new lock does not leave the original cause unresolved.

Can you match the mortise lock already installed in my door?

We inspect the existing lock case, door edge, trim, and strike to determine what replacement will fit the opening. A clear photo of the door edge and both sides of the door can help show what is installed, but the fit needs to be checked against the actual door.

Get the Commercial Door Checked

Call (805) 977-6159 for mobile mortise lock service. We’re open 24 hours a day, 7 days a week.

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