

High security · Guildwood Village
High Security Locks in Guildwood Village
You have lost count of how many people have had a key to your house over the years: cleaners, a contractor, a former partner, the previous owner's family.
In plain words
High security locks are cylinders and deadbolts designed to defeat the methods used against ordinary doors. Inside the cylinder a second locking mechanism, usually a sidebar released by finger pins or rotating pins, has to be satisfied at the same time as the normal pin stack, which is what stops picking and bumping. Hardened steel inserts stop drill bits. The bolt is thicker and carries a hardened pin against sawing, and a reinforced strike ties the lock into the wall framing. Just as important, the key is cut on a patented blank that only an authorised person can have copied, so your key count stays known.
How the visit goesThe pharmacy stockroom, the server closet or the cash office is protected by the same ordinary cylinder as the staff washroom. One lost key on a lanyard would open all of them.
High Security Locks
How the visit goes


Matching the rating to the risk
Ratings are only useful if someone explains them. A residential deadbolt carries a hardware grade for security, durability and finish based on hammer blows, pulling force and cycle testing. A high-security cylinder carries a separate laboratory listing based on how many minutes it resists picking, drilling and forcing. The locksmith explains what each figure means in practice for your door and points out the rule that matters most: the whole assembly takes the grade of its weakest part. That conversation ends with a recommendation you understand rather than a part number you have to trust.
Keying several doors sensibly
When more than one door is upgraded, the locksmith plans the keying before pinning anything. A home usually wants every exterior door on one key. A business often wants staff keys that open the front and their own area, and one manager key that opens everything, arranged as a small master system on the same patented keyway. Cylinders are pinned on the bench, labelled and fitted door by door, and each key is checked against the doors it should open and, just as carefully, the doors it should not. The written key schedule is part of the handover.
Looking after a precision cylinder
High-security cylinders are finer mechanisms than the pin tumblers they replace, and a little care keeps them turning sweetly. Use only the dry lubricant the locksmith recommends, once or twice a year and sparingly, and never household oil, which gathers grit around the finger pins and sidebar. In cold weather, if the key resists, warm it in your hand or use a de-icer rather than forcing it. Insert the key fully before turning. Keep a spare key indoors so a bent or worn key is retired rather than pushed on. Treated this way, the cylinder outlasts the door around it.
High Security Locks
In the van
Reinforced strike plate
Key control authorisation card
Graded deadbolt with hardened bolt
High-security cylinder
Wrap-around door reinforcer

High Security Locks
What affects the quote
Cylinder only or full deadbolt
Swapping the cylinder inside a sound deadbolt is a smaller job than fitting a new graded deadbolt through the door, and a knob-only door that needs a fresh bore is bigger again.
Number of doors
Each door gets its own cylinder or lock, strike work and testing. Several doors on one keyway share the setup cost of the key system but add hardware and time per opening.
Strike and frame reinforcement
A reinforced strike with long screws is modest work on a healthy frame. Deepening the pocket, filling split wood, fitting a jamb plate or a wrap-around reinforcer adds materials and time.
What to have ready
- Which locks are on the door now: knob only, knob and deadbolt, a mortise lock or a lever?
- How many exterior doors do you want included?
- Is this a house, condo, rental unit or business premises, and do you own or manage it?
High Security Locks: questions
QuestionsWill my door look different afterwards?
Barely. A high security cylinder sits in the same place as the old one and is usually distinguished only by a different keyway shape and sometimes a hardened collar. A graded deadbolt is a standard-looking deadbolt in your chosen finish. The reinforced strike is longer than the plate it replaces and the wrap-around reinforcer, if used, shows as a neat metal band on the door edge. The difference is felt when you lock up, not seen from the street.
Do I need to replace my whole deadbolt or just the cylinder?
It depends on what you have. If the deadbolt is a good heavy unit that throws a full inch into a proper strike, a high security cylinder can replace the ordinary one and the rest stays. If the deadbolt is light, worn or throws a short bolt, a new graded deadbolt with a hardened bolt is the sensible base and the high security cylinder goes into that. The assessment tells you which, door by door.
How long does the installation take?
A cylinder swap with new keys on one door is a short visit. A new deadbolt, reinforced strike and frame repair takes longer, and several doors keyed to a plan take longer again, mostly in bench time pinning cylinders. The locksmith gives you a realistic estimate once the doors have been looked at, because the frame condition and the door preparation matter more than the count of locks alone.
