
Change or rekey · Ajax
Deadbolt Installation
The front door has a handsome lever and a keyed knob, and that is all. Nothing above it.
Call now · open 24/7(289) 275-3289In plain words
Most of the value in a deadbolt is on the frame side, which is why a good installation spends as much time on the jamb as on the door. The bolt is only as strong as the pocket it throws into and the screws that hold the strike. Short screws in a standard strike bite only into the thin jamb board; a reinforced strike fastened with 75 mm screws passes through that board into the stud behind, so a blow against the door meets the house rather than a strip of pine. The pocket is cut deep enough for a full throw and aligned so the bolt slides home freely.
How the visit goesSomeone tried the door last winter. The frame took it, but the strike plate is bent, one screw hole is stripped, and the bolt sits in the pocket at a slight angle. It still locks, and it still bothers you every night.
Deadbolt Installation · Ajax
How the visit goes

- 1
The frame behind the strike
A bolt is only as good as what it throws into, so the jamb gets a hard look before anything is ordered. The locksmith checks whether the jamb is wood or steel, whether it is backed by solid framing at lock height or by a gap of shims and air, and whether earlier screws have torn out or been stripped. A jamb that flexes under a palm tells its own story. Where a strike has been fitted before, the old pocket is examined for depth and position, since a shallow or offset pocket is the usual reason an existing deadbolt feels stiff. This check decides between a plain strike, a reinforced strike with long screws, or a full-length jamb reinforcer.
- 2
Cutting a pocket the bolt can fill
The strike is located from the bolt itself rather than from a measurement. The bolt tip is chalked, the door is closed and the bolt is thrown firmly against the jamb to leave a mark at the true centre. The locksmith bores the pocket there with a 25 mm bit to a depth of at least 28 mm, so a 25 mm bolt seats fully and reaches its deadlocked position instead of stopping short and feeling stiff. The pocket is checked with the bolt extended before any plate goes on, because a strike screwed over a shallow hole hides the fault until the first cold morning when the door has moved.
- 3
A bolt with a full, deadlocked throw
What you feel at the end is a bolt that travels its whole length into the frame with one turn and stops with a definite click, which is the deadlocking position that stops the bolt being pushed back from the edge. From outside, the key turns a cylinder that sits in a collar which spins if gripped. From inside, the thumb-turn moves the same bolt without a key. The locksmith shows you both, throws the bolt with the door closed so you hear it seat, and hands over the packaging with the model, finish and backset written on it for the day a matching lock is wanted on another door.
In the van
- Strike box
- Dry PTFE lubricant
- Sharp chisel and mallet
- Boring jig and 54 mm hole saw
- Bolt faceplate or drive-in collar
What affects the quote
- 1
Hardware supplied by you or by the locksmith
If you have already bought the lock, the quote covers labour and any adaptation of the door to that kit. Hardware supplied from the van is listed separately with its grade and finish.
- 2
Removing and disposing of the old hardware
Some visits end with the old deadbolt and strike left with the homeowner, and others ask for it to be removed and hauled away. Taking the old hardware away adds a small amount of time and is agreed before the new deadbolt goes in.
- 3
Number of doors
One front door is the simplest case. Front, back, side and garage-to-house doors done in one visit share the travel and setup, so the per-door figure usually eases as the count rises.
Same fees day, night or weekend.
Deadbolt Installation: questions
How long does a deadbolt installation take?
A replacement into existing holes is generally the shorter visit, and boring a fresh door with a new strike takes longer, roughly an hour or two per door including the frame work and testing. Steel doors, keying alike, frame repairs after a forced entry and fitting a jamb reinforcer each add time. The locksmith can give a realistic estimate once the door and frame have been looked at.
Can I supply my own deadbolt?
Yes. Bring the box, the template and the instructions, and tell the locksmith the model beforehand so the bore and backset can be checked against your door. If the kit turns out to need a larger hole or a different faceplate than the door has, the locksmith adapts the door or suggests a matching model. Hardware bought online sometimes arrives set for a different door thickness, which is a small adjustment on site.
I rent. Can I have a deadbolt installed on my unit door?
You can, with a conversation first. Tenancy rules in this province expect a tenant to have the landlord's consent before changing locks and expect the landlord to hold a key, so ask in writing and share the plan. Many landlords welcome a proper bolt. The locksmith can key the new cylinder to the building's existing key where the keyway allows, and leave a note of the model and keys cut for the building manager.
Deadbolt Installation near you
Durham, Ontario
Ajax information
- Town
- Ajax, Durham, Ontario
- In business
- 29 years
- Hours
- Open 24/7 · nights, weekends and holidays, same fees
- Phone
- (289) 275-3289
- Visits
- On-site assessment preferred. Request a visit or call.
What the census means at the door
23%
Newer homes. About 23% of homes in Ajax were built in 1980 or earlier, according to the 2021 Census.
New homes frequently come with strikes held by short screws into soft framing. Replacing them with longer screws that reach the stud is inexpensive work that adds real strength, and it is one of the first things a locksmith checks in a newer area.
65%
Mostly houses. Single-detached houses make up about 65% of homes in Ajax (2021 Census).
Families in houses hand keys to children, cleaners, dog walkers and neighbours. A locksmith can set up a keypad on the side door for the household and keep the front door on a conventional key, so access matches how the family actually comes and goes.
Nearby
Open 24/7
Request a visit
The front door has a handsome lever and a keyed knob, and that is all.
Call now · open 24/7(289) 275-3289- On-site assessment preferred
- Same fees day, night or weekend
- 29 years in business




