Change or rekey · Whitchurch-Stouffville
Deadbolt Installation in Whitchurch-Stouffville
The bolt on the front door is keyed on both sides.
In 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 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
Exit, fire and who lives here
The last part of the first look is about the people, not the door. The locksmith asks whether this is the door the household leaves through, whether children, older relatives or anyone with limited hand strength use it, and whether it is a rental where the landlord holds keys. A door that serves as a way out gets a thumb-turn planned for it, so nobody has to hunt for a key to leave. A lever thumb-turn is easier for small or stiff hands than a knurled one, and a rental may need a note to the building manager. None of this takes long, and it shapes which box comes off the van.
Assembling the cylinder and thumb-turn
The outside housing goes on first, with its tailpiece threaded through the slot in the bolt cam and its mounting posts through the matching holes. Any plastic alignment bracket that ships with the lock is used on a 54 mm bore and removed on a smaller one. The inside thumb-turn plate is set against the door and the two long tapered screws are driven through it into the outside housing, snug rather than crushed, so the housings pull tight to the door without distorting the mechanism. The locksmith turns the thumb-turn before the door is closed to confirm the bolt throws its full length and returns without a catch.
Ready for a smart lock later
Because the door was prepared to the standard bore and backset, it suits many future options, though the model chosen later still sets its own bore, backset and thickness requirements. Keypad and app-controlled deadbolts fit the same 54 mm cross bore and the same edge bore as the mechanical lock fitted today, so upgrading later means swapping the hardware, not cutting the door again. The backset and bore measurements are written on the packaging left with you. If you want to think about a keypad down the road, ask the locksmith which models suit the door thickness and whether a backup keyed cylinder is worth having for the one day the batteries are flat.
Deadbolt Installation
In the van
Sharp chisel and mallet
Strike box
75 mm (3 in) strike screws
Single-cylinder deadbolt
Dry PTFE lubricant
Deadbolt Installation
What affects the quote
Glass near the lock
A captive thumb-turn, laminated glass, security film or a relocated bolt height each carry their own cost, and the choice you make about glass shapes that part of the quote.
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.
Grade and type of deadbolt
A builder-grade bolt, a residential model with a high security grade, and a heavy commercial-pattern deadbolt sit at different points in the hardware part of the quote, and the locksmith explains the differences.
What to have ready
- Does the door have to be pulled or lifted before it latches or locks at the moment?
- Is the door solid wood, steel-clad or fibreglass, and roughly how thick is it?
- Has the door or frame ever been forced, or are any screw holes stripped?
Deadbolt Installation: questions
QuestionsWhat 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.
The door has to be pulled before the old bolt will lock. Will a new one fix that?
The new bolt will only lock as smoothly as the door and frame let it, so the locksmith deals with the cause as part of the installation. A door that has sagged on loose hinges gets longer hinge screws or a shim, thick weatherstrip is trimmed, and the strike is set from the bolt's actual position with the door closed. The pocket is bored deep enough for a full throw. Afterwards the bolt should slide with fingertip effort.
What is the difference between a deadbolt and the lock in my door knob?
The knob or lever holds the door shut with a spring latch: a bevelled tongue that snaps into the frame and can be pushed back by anything slid into the gap. A deadbolt is a solid rectangular bar driven by the key or thumb-turn alone, and when fully thrown it locks in place so it cannot be pressed back from the edge. The knob keeps the door closed; the deadbolt keeps it locked.
Related services
- Lock Replacement & UpgradeThe century home's original mortise lock takes a key the size of a spoon, sticks in humid weather and has worn its strike to a groove.
- Vintage Mortise Lock ServiceThe knob flops loose on its spindle and never springs back to level.
- 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.