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PrestonLocksmith Co.Open 24/7 (226) 807-5217
Double glass doors in metal frames with a horizontal push bar, beside a brick wall, with a parking lot and trees outside. — Cambridge

PrestonLocksmith Co.

Locks Keys Safes

Locksmith in CambridgeOlder homes.
Original locks, still working.

Plenty of houses in Cambridge still carry their first mortise locks and brass knobs, and they are worth keeping. We service that hardware so it turns freely again, find matching parts where they exist, and only suggest replacement when a piece genuinely cannot be brought back. Character stays; the door locks.

Request a visit

Same fees day or night · Cambridge

Cambridge

Locksmith services · Cambridge

Every service listed here has been done many times on doors in Cambridge, which is why each page can be specific about what gets checked, how the work is carried out, and what you are left with afterwards. Read the one that matches your situation, then reach out with any question the page did not answer.

PRESTON LOCKSMITH CO. · OPEN 24/7 · CAMBRIDGE · 26YEARS IN BUSINESS

Book your Cambridge locksmith visit

Businesses in Cambridge get exit hardware that lets everyone leave without hunting for a key, while the door stays locked from the outside. We fit and adjust push bars, panic bars and deadlatches, set the closers so the door shuts on its own, and check that the whole exit path works in one motion from inside.

Nearby Hespeler, Preston and Blair

Shop rules

Honest advice about your locks.

  1. Plain words. We talk about pins, cylinders and strikes only when it helps you understand. Otherwise it is 'this is why the door sticks and here is what fixes it'.
  2. Respect for your door. We treat an old wooden door or a new steel one as yours, not as a project. Non-destructive methods come first, and we ask before drilling anything.
  3. Knowing what you are left with. Before we leave, you will know exactly what changed, how many keys exist and what to keep an eye on. Nothing is left as a mystery.
  4. Open 24/7, same fees any hour. Talk to a locksmith about it.

26 years in business · Describe the problem; we'll take it from there: (226) 807-5217

Five scenes · open 24/7

How a visit goes

Commercial doors work harder than residential ones: hundreds of cycles a day, a closer slamming the latch, deliveries propping the back door open in the cold. We specify hardware for that duty, keep closers adjusted so the door actually latches behind people…

Illustration: a phone ringing on a dark shop counter, a photo of the front door arriving beside it
  1. Illustration: a phone ringing on a dark shop counter, a photo of the front door arriving beside it

    Step 1 of 5

    Call and describe the door

    Describe the property, the hardware and what has changed, and the visit starts from what you have seen.

  2. Illustration: a white work van with its headlights on, driving a lit street at night

    Step 2 of 5

    On our way

    Mailbox, cabinet and desk locks are small but varied. We identify the type and whether a key can be made, a cylinder replaced or the whole unit swapped.

  3. Illustration: the van in the driveway, the porch light on, a photo ID card and a utility bill beside the front door

    Step 3 of 5

    Plain words

    We talk about pins, cylinders and strikes only when it helps you understand. Otherwise it is 'this is why the door sticks and here is what fixes it'.

  4. Illustration: three cards in front of the door, one option chosen and two faded

    Step 4 of 5

    Respect for your door

    We treat an old wooden door or a new steel one as yours, not as a project. Non-destructive methods come first, and we ask before drilling anything.

  5. Illustration: a new key turned in the deadbolt, a check mark beside it and the porch light glowing

    Step 5 of 5

    Knowing what you are left with

    Before we leave, you will know exactly what changed, how many keys exist and what to keep an eye on. Nothing is left as a mystery.

Cambridgeinformation

WaterlooOntario

Town
Cambridge, Waterloo
In business
26 years
Hours
Open 24/7
Nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

2021 census: what it means at the door

Every square is one home in a hundred.

  • 48 in 100 homes · mixed ages
  • About 48% of homes in Cambridge were built in 1980 or earlier, according to the 2021 Census.Mixed housing stock keeps a locksmith versatile. A morning might be a heritage mortise lock rebuilt and an afternoon a smart lock paired to a phone on a steel door. The same care goes into both, with tools and parts for each.
  • Single-detached houses make up about 57% of homes in Cambridge (2021 Census).Mixed housing brings mixed hardware ages as well as types. A locksmith may rebuild a mortise lock on a semi-detached house and then set up a keypad on a townhouse door across the road, and treats each with the care its owner expects.

Source: Statistics Canada, Census Profile

Open Cambridge in Google Maps

Good questions about locks

Will we get something in writing afterwards?

Yes. The visit closes with a written account of which door was opened and how, the condition the hardware was in, anything replaced, the number of keys cut and who received them. Landlords ask for it when locks on a unit change, insurers after a loss, and franchise head offices as a matter of course. Keep it with the lease; it also tells the next locksmith exactly what is on your doors.

Someone forced my door. Can the new deadbolt go into the same frame?

In most cases, yes. The locksmith examines the jamb for splits and stripped screw holes, glues and pins any cracked section, and fits a full-length jamb reinforcer under the strike so the new long screws bite into sound wood and the stud behind. A new pocket is bored to the correct depth. Where the jamb is beyond repair, replacing that section of frame is discussed before any lock goes on.

How do I know what rating of safe I actually need?

Start with what will be inside it. Cash, jewelry, and firearms mainly need protection from tools and time, so the burglary rating matters most. Paper records and digital backups mainly need protection from heat, so the fire rating matters most, and digital media needs a noticeably lower internal temperature than paper to survive. Many households and businesses end up choosing a unit built to both standards rather than picking just one.

Do high security locks need special maintenance?

Only light care. Use the dry lubricant the locksmith recommends once or twice a year, never oil, which gathers grit around the finger pins and sidebar. Keep the keyway free of debris and insert the key fully before turning. In winter, warm a resisting key in your hand or use a de-icer rather than forcing it. Check hinge and strike screws each season so the door stays aligned. Treated this way the cylinder lasts for decades.

On-site assessment

Request a visit.

Book your Cambridge locksmith visit

(226) 807-5217, open 24/7.