

Change or rekey · Brampton
Deadbolt Installation
Someone tried the door last winter.
In plain words
Deadbolt installation puts a solid bolt lock on a door that either has none or has one that is past its useful life. Unlike the spring latch in a knob or lever, a deadbolt is a straight bar of metal that only moves when the key or thumb-turn moves it, so a card slipped into the gap or a shove against the door does nothing. The locksmith bores the door if needed, fits the bolt and cylinder, cuts a proper pocket in the frame and secures a reinforced strike with screws long enough to reach the framing. You are left with a door that locks with a firm, full throw.
How the visit goesThe 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 that.
Deadbolt Installation
How the visit goes


Where the bolt should sit on the door
On a door with no deadbolt yet, its height is not fixed by the manufacturer but by the door in front of you. The usual spot is 140 to 150 mm above the centre of the knob, which places the bolt near the strongest part of the lock stile and keeps both locks within one comfortable reach. The locksmith checks that this height misses any glass, decorative panel, hinge line or the wood block inside an insulated door, and that the frame behind that spot is solid rather than a gap between shims. If a storm door or screen door shares the opening, the bolt's thumb-turn and cylinder have to clear it as well.
Setting a strike that reaches the framing
A reinforced strike or strike box is centred over the pocket, squared to the edge of the jamb, and its outline is scored and chiselled to a depth that leaves the plate flush. Pilot holes are drilled, and the two holes nearest the door stop take 75 mm screws that pass through the jamb and the shim space into the stud behind, with shorter screws in the remaining holes. The long screws are driven by hand for the last turns so the heads seat without crushing the jamb. Where the jamb is thin or has been split by an earlier attempt, a full-length jamb reinforcer is fitted under the strike instead.
A frame that now holds the bolt
Behind the new strike plate is the part of the job you cannot see and will never need to think about. The pocket has been bored deep enough for the bolt to seat fully, the plate has been let into the jamb so it sits flush, and the long screws reach through the jamb into the framing behind it. On a door that had been forced or had stripped screw holes, a full-length reinforcer may sit under the strike. If you press the jamb with your palm now, it does not flex. That stiffness is what a bolt needs to do its work, and it is the reason the installation took as long on the frame as on the door.
Deadbolt Installation
In the van
Boring jig and 54 mm hole saw
Bolt faceplate or drive-in collar
25 mm auger bit
Jamb reinforcer
Sharp chisel and mallet

Deadbolt Installation
What affects the quote
Door material
Solid wood, steel-clad and fibreglass doors are each cut differently. Metal skins call for slower cutting and cleanup of filings, so the material is one of the first things a quote takes into account.
New bore or replacement into existing holes
Boring a door that has never had a deadbolt takes more time and tooling than dropping a new bolt into holes that are already there, and the quote reflects which of the two your door needs.
Storm door or restricted clearance
A tight storm door, a narrow lock stile or a decorative panel at bolt height can require low-profile trim or a shifted position, which is settled and quoted at the assessment.
What to have ready
- Have you already bought the hardware, and if so which model and does the template come with it?
- Is the door between the garage and the house one of the doors you want bolted?
- Which doors do you want a deadbolt on, and does each one already have a bolt or only a knob?
Deadbolt Installation: questions
QuestionsWhat about glass beside the door or a window in it?
Glass within reach of the lock is the one case where a plain thumb-turn deserves thought. Options include a captive thumb-turn that turns freely until you remove its small key, laminated glass or a tested security-film system with its specified frame attachment, or simply setting the bolt farther from the glass. Lock manufacturers describe sidelights as a weak point, so the locksmith measures the reach and lays out the choices rather than defaulting to a key on the inside.
Does the finish of the deadbolt matter beyond looks?
It does on an exposed door. Winter salt spray, summer sun and humid air all work on the outside trim, and residential deadbolts carry a finish grade that reflects how well the coating resists them. A lifetime or PVD-style finish stays bright longer on a south-facing or roadside door, while a sheltered porch door can carry any finish you like. Matching the knob or lever below is mostly a matter of taste.
What should I have ready before the locksmith arrives?
Know which doors you want bolted, what they are made of, and whether each already has a deadbolt or only a knob. A photo of the door face and edge helps. Have any existing keys to hand, decide whether you want everything on one key, and mention glass near the lock, a storm door in the same opening, or a rental agreement. If you have already bought hardware, keep the box and template together.
Related services

- Lock Replacement & UpgradeThe house is fifteen years old and every exterior door still wears the light hardware the builder fitted: a short bolt, a thin strike held by two small screws, and a knob lock that never suited a street entrance.
- 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.
- Smart Lock InstallationYour mother still lives on her own, and the personal support worker, the pharmacy delivery and two siblings all need to get in on different days.