Skip to content
MaryhillLock & Key Specialists · GuelphOpen 24/7(226) 770-4033Request a visit
Technician in a cap and safety glasses holding a push bar end cap against a metal door with a red drill.

Locksmith · Guelph

Locks, keys, safes and access

Sometimes the job is obvious: a key snapped in the cylinder, a deadbolt that spins without catching. Other times you know something is wrong but not what to ask for. Either way, start here. Each service page describes the symptoms, the fix and what to have ready.

Change or rekey

Change or Rekey Locks

Residential services cover the whole life of a house: settling in, changing tenants, replacing worn locks, adding a smart lock, sorting out a stuck mailbox and making sure the garage side door is as solid as the front.

  1. Hands holding a lock cylinder and a ring of keys above a worn workbench with another cylinder and loose keys. — Lock Rekeying, Guelph
    Lock RekeyingThe builder handed over your new home with a stack of identical keys, and you know the framing crew, the painters and the flooring installers all used a construction key during the build. The doors are brand new, but…
  2. Person holding a silver-colored lock beside an open wooden door with exposed circular holes and a latch at its edge. — Deadbolt Installation, Guelph
    Deadbolt InstallationThe door from the garage into the kitchen closes on a passage knob with no lock at all. Anyone who opens the garage is one turn of a handle from the house, and the insurance renewal form has a question about exactly…
  3. Detached satin-nickel lever hardware, tubular latch and strike plate on a wooden workbench. — Lock Replacement & Upgrade, Guelph
    Lock Replacement & UpgradeEvery morning the front door key needs the same little dance: push in, lift, wiggle, turn. It has been getting worse for a year, and this week it took three tries in the cold before the deadbolt finally gave.
  4. Person holding a long door handle and rectangular lock case beside an open wooden door with exposed hardware recesses. — Vintage Mortise Lock Service, Guelph
    Vintage Mortise Lock ServiceThe key turns freely in the round cylinder on the door, all the way around and back, without the bolt shifting at all. The cylinder itself wobbles slightly when you press it, as if it has come loose inside the door.
  5. Person holding a black door-handle assembly and a latch beside a glazed door with exposed lock openings. — Smart Lock Installation, Guelph
    Smart Lock InstallationArthritis has made the small house key hard to grip and turn, especially with gloves on in January. Pressing a few buttons, or tapping a fob against the lock, would make coming home in winter far easier.
  6. Pale blue garden gate with a black lever latch between light stone pillars. — Gate & Building Entry Locks, Guelph
    Gate & Building Entry LocksThe gate to the side yard used to close with a satisfying click. After a winter of frost heaving the fence post, the latch now sits a full inch below where the strike is waiting for it, and the gate swings free no…
  7. Detached threaded cam lock and mounting washer on a workbench in front of closed mail compartments. — Mailbox Lock Replacement, Guelph
    Mailbox Lock ReplacementThe little brass key for your curbside mailbox was on the same ring as the one you lost at the gym last week. The lock itself is fine, but whoever finds that ring now has a way into your mail as well.

Commercial

Commercial Locks

A commercial lockout can mean a locked front door with customers arriving, a jammed back door with a delivery waiting, or a stockroom key gone missing during a shift. Business lockout work opens the door, checks the lock and gets the day back on track.

On-site assessment preferred

Request a visit

Let's fix that lock. Start with a phone call.

Maryhill Lock & Key Specialists

Locksmith · Guelph

Open 24/7

(226) 770-4033

35 years in business

Open 24/7 · call(226) 770-4033Request a visit