

Change or rekey · King's Forest
Deadbolt Installation in King's Forest
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 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
How the visit goes


Which key should open it
A deadbolt is also a key decision, so the locksmith asks how the household's keys are arranged now. If every door shares one key, the new cylinder can be pinned to that same key, provided the keyways match, so nobody's ring grows. If the house has just changed hands, this is the natural time to set the new bolt and the other exterior locks to a fresh key and retire whatever copies are out there. Restricted or high-security keyways, keypad models with a backup cylinder and locks that must match a rental building's system all steer the choice of hardware, and it is easier to settle this before the box is opened than after.
Marking and boring a fresh door
With the height agreed, the paper template is folded over the door edge and the two centres are marked: the cross bore on the face and the edge bore on the stile. A boring jig clamps over the door so the hole saw cannot wander, and the cross bore is cut from both faces to leave clean veneer or skin on each side. The edge bore is drilled with a 25 mm bit through the stile until it meets the larger hole. The locksmith then traces the bolt faceplate on the edge and chisels a shallow mortise so the plate sits flush, keeping the cut inside the lines so the edge stays sound.
A safer way out as well as a stronger way in
With a thumb-turn inside, everyone in the household can leave through this door without hunting for a key, day or night. The locksmith walks the family through the thumb-turn and shows children how it turns. If a double-cylinder bolt was replaced, the inside key is no longer needed at all and can be retired. Where glass sits near the lock, whatever measure you agreed on, a thumb-turn that locks with its own small key, a laminated pane, or a tested security-film system that can delay an arm's reach, is in place, so security did not come at the cost of a clear way out.
Deadbolt Installation
In the van
Sharp chisel and mallet
25 mm auger bit
Strike box
Reinforced strike plate
Manufacturer's bore template

Deadbolt Installation
What affects the quote
Strike and frame reinforcement
A reinforced strike with long screws is standard; a full-length jamb reinforcer, a strike box or repairs to a split jamb after a forced entry are extra items quoted on their own.
Travel to the property
Distance and access are part of any call-out: a house on a suburban street and a rural property down a long road involve different driving time, and the quote says so.
Mechanical, keypad or smart lock
Electronic deadbolts carry a different hardware line and add setup time for codes, pairing to a phone and a walk-through, all of which appear as their own entries.
What to have ready
- Which doors do you want a deadbolt on, and does each one already have a bolt or only a knob?
- Is there glass in the door or a sidelight beside it within arm's reach of the lock?
- Have you already bought the hardware, and if so which model and does the template come with it?
Deadbolt Installation: questions
QuestionsCan a keypad or smart deadbolt be fitted instead of a keyed one?
Yes, and the preparation is the same. Many electronic deadbolts use the standard 54 mm bore and the same edge bore, so a door cut for a mechanical bolt often accepts one, and a keyed bolt fitted today can usually be swapped for a keypad later, subject to that model's own bore, backset and thickness needs. The locksmith checks door thickness against the model, fits a reinforced strike as usual, sets up codes with you and shows where the backup cylinder or battery terminals are.
How long should the bolt be?
The bolt should extend at least 25 mm into the frame, which is the standard throw for a dwelling's entrance doors and the length most residential deadbolts provide. Part of the bolt stays inside the door for support while the rest sits in the pocket. A hardened steel insert that spins under a saw blade is a common feature worth having on doors that face a street or laneway.
What happens during the visit, step by step?
The locksmith looks at the door, frame, glass and hinges, measures the bore and backset, and confirms the hardware and key plan with you. The door is bored or the old lock removed, the bolt is set to the backset, and the cylinder and thumb-turn are assembled. The strike position is marked from the bolt itself, the pocket bored, and a reinforced strike fastened into the framing. Everything is tested open and closed, keys are cut and tried, and the area is vacuumed.
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 ServiceSomeone painted the door years ago without removing the hardware.
- Smart Lock InstallationYou have just taken possession of the house and the previous owners handed over a keypad deadbolt with a code nobody wrote down and an app account you cannot get into.