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How to Secure Your House in Oxford A Locksmith Checklist
A door by door hardware audit for Oxford houses: which cylinder, deadlock and window lock each way in needs, the standards to look for, and what each upgrade costs.
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Every entry point audited
Front, back, patio, French doors, windows, side gate, garage and shed
TS007 3 star and SS312 cylinders
Snap resistant euro cylinders from £95 to £135 fitted plus the cylinder
BS3621 deadlocks for timber
5 lever mortice locks for period doors from £85 to £115 plus the lock
Prioritised fixed quote
Weakest door first so your budget goes where it stops a break in
How to secure your home starts with the hardware on every way in: a snap resistant cylinder or a BS3621 deadlock on each final exit door, locks on ground floor windows, and a locked side gate, garage and shed. We are a 24 hour mobile locksmith based at 169 Woodstock Road in North Oxford, and we audit and upgrade homes across Oxford and Oxfordshire at a price agreed before we start. The single best value fix on most uPVC and composite doors is an anti snap cylinder upgrade at £95 to £135 plus the cylinder.
Work through the checklist below door by door. It is about locks, doors and frames. For the daily routine side of security, read our separate home security habits guide.
Why a Hardware Audit Beats Buying One Expensive Lock
A burglar does not test your best door. Most break ins are opportunist, and the person looking for a way in will usually pick the door or window that is out of sight and easiest to beat. That is often the back door, a patio door or a side gate rather than the front door you spent money on.
So the useful question is not which lock is strongest, but which entry point is weakest right now. A £120 cylinder on the front door does little if the back door still has the original budget cylinder from 1998 and the side gate has no lock at all. Walk round the outside of your house with this page open and score each point as you go.
Five minute self check
Stand outside each door and look at the key cylinder. If it sticks out more than about 3mm past the handle plate, has no star markings, or the handle wobbles, note it down. Those three signs cover most of the door weaknesses we find in Oxford homes.
How to Secure Your Front Door by Door Type
The right upgrade depends on what the door is made of and how it locks. Oxford has every type, from Victorian timber doors in Jericho to composite doors on new estates at Barton Park.
uPVC or composite with a multipoint lock
The hooks and rollers along the edge are strong. The weak part is almost always the euro cylinder in the middle. Look for a cylinder marked TS007 3 star, or one rated Sold Secure SS312 Diamond, such as the Ultion cylinders we fit in Oxford.
Fix: anti snap cylinder upgrade, and adjust the door if the handle is stiff to lift.
Timber door with a nightlatch only
A Yale style rim latch on its own can often be slipped or forced, and most insurers expect a key operated deadlock on a final exit door. Older latches may also not deadlock at all.
Fix: add a BS3621 5 lever mortice deadlock and, if needed, a deadlocking nightlatch.
Period door with glass panels
Glazing near the latch means someone could break a pane and reach the inside handle or thumbturn. Thin original frames can also split under force.
Fix: a key locking mortice lock, a London bar or frame reinforcement, and laminated glass where practical.
What lock snapping means for you
Lock snapping is a known attack on standard euro cylinders, where the cylinder breaks at its thinnest point and the lock can then be operated. We will not describe how it is done, but the protection is simple: a cylinder designed with a sacrificial front section and a hardened core, sitting flush with good quality handles. If you only do one thing from this checklist on a uPVC door, do this.
Back Doors, Patio Doors and French Doors Checked
Rear doors face gardens and alleys, so they get more time and less attention from passers by. Use this table to match what you have with what it usually needs.
| Door | Common weakness | What we fit | Typical price |
|---|---|---|---|
| uPVC back door | Basic cylinder, dropped door so hooks miss keeps | 3 star cylinder, door adjustment | £95 to £135 + cylinder; adjustment £65 to £95 |
| Timber back door | Nightlatch only, worn 2 or 3 lever lock | BS3621 mortice plus top and bottom bolts | £85 to £115 + lock £35 to £65 |
| Sliding patio door | Can be lifted out of the track on older frames, worn hook lock | New patio lock, anti lift blocks | £85 to £125 + lock £40 to £80 |
| French doors | Slave door shoot bolts not engaging, weak cylinder | Shoot bolt repair, 3 star cylinder | Lock repair £55 to £85 |
| Conservatory door | Same cylinder as the back door but rarely upgraded | Matching keyed alike 3 star cylinder | £95 to £135 + cylinder |
On French doors, check that the passive leaf is bolted top and bottom before you lock the active leaf. If the bolts do not reach their keeps, the pair can be pushed open together. Our patio and French door lock repairs cover sliding and hinged pairs.
Windows: Sash, Casement and uPVC
Ground floor windows and any window reachable from a flat roof, wheelie bin or extension need a lock that needs a key to open. Handles that turn freely without a key only keep the weather out.
- Victorian and Edwardian sash windows, common in Jericho, Summertown and East Oxford: fit sash stops so the window can open about 100mm for air but no further, plus a key operated sash lock.
- Timber casement windows: surface mounted key locks on the opening frame, ideally two per window on larger casements.
- uPVC windows: replace non locking handles with key locking ones, and check that the espagnolette locking points still engage after years of use.
Window locks cost £35 to £55 per window to fit plus £15 to £30 per lock, with a discount when we do several in one visit. See our window lock replacement service for sash, casement and uPVC options. Remember fire safety: in rooms people sleep in, keep the key near the window so it can be opened quickly in an emergency.
Side Gates, Garages and Sheds: The Forgotten Ways In
A side gate that opens gives someone private access to your back door and windows. A shed full of tools gives them the means. These are cheap to fix compared with the doors they protect.
- Side gate: fit a lock that works from both sides or a key operated bolt on the garden side, and keep it locked rather than latched. Our garden gate lock fitting covers timber and metal gates.
- Integral or attached garage: if there is a connecting door into the house, treat it as a front door with a deadlock. Up and over garage doors often have a single centre lock that wears; garage door lock replacement runs from £95 to £135 plus the lock.
- Shed: a closed shackle padlock on a hasp fixed with coach bolts through the door, not screws that can be undone from outside. Keep ladders chained or inside.
Securing a Period Oxford House Compared With a New Build
Oxford housing splits into a few clear groups, and each has its own typical weak spots.
Victorian and Edwardian terraces
North Oxford, Jericho, Cowley Road side streets. Expect timber doors with a nightlatch and sometimes an old 2 lever mortice, sash windows without locks, and rear access through shared alleys.
1960s to 1990s estates
Blackbird Leys, Rose Hill, Kidlington, much of Abingdon. Many first generation uPVC doors with basic euro cylinders and dropped doors that need lifting.
New build estates
Barton Park, Kingsmere in Bicester, Great Western Park in Didcot. Composite doors with multipoint locks, but the cylinder fitted at build stage is not always 3 star rated. Check the face of the cylinder.
Listed and conservation area homes
Changes to historic doors may need consent, so check with the council before altering an original door. A mortice lock fitted inside the existing door usually keeps the look intact.
Your Prioritised Home Security Upgrade List
If budget is limited, do the jobs in this order. Each one is ranked by how much risk it removes per pound spent.
- Anti snap cylinders on every euro cylinder door. £95 to £135 fitted plus the cylinder £50 to £120. Keyed alike so one key does front, back and patio.
- Adjust any dropped uPVC door. £65 to £95. A door that needs a shove to lock will eventually fail locked or unlocked. If the gearbox has already failed, see multipoint lock replacement.
- BS3621 deadlock on timber final exit doors. £85 to £115 plus the lock.
- Patio door lock and anti lift protection. £85 to £125 plus the lock.
- Key locking window locks downstairs. £35 to £55 per window plus the lock.
- Side gate, garage and shed. Gate and shed hardware is usually inexpensive; garage door locks from £95 to £135 plus the lock.
- Moved in recently? Rekey everything. £45 to £65 per lock with our lock rekey service, so keys held by previous owners stop working.
Full figures are on our locksmith price list. Prices include VAT and labour, with parts listed separately on an itemised invoice.
What Home Insurers Usually Expect on Your Doors
Many home insurance policies set minimum lock requirements for final exit doors, the doors you leave the house by. Wording varies, so read your own policy, but a common pattern is a BS3621 5 lever mortice deadlock on timber doors and a key locking multipoint system on uPVC or composite doors. Some policies also mention key operated window locks downstairs.
If you are burgled and your locks do not match the policy wording, a claim can be reduced or refused. After we fit or check your locks, the itemised invoice lists the make and standard of each one, which is useful evidence to keep with your policy documents. For a full walk round of the property, our residential locksmith team can assess every door and window in one visit. More guides like this are in our locksmith advice library, including whether a digital door lock is a sensible addition.
Home security upgrade prices in Oxford
Fixed prices agreed before we start, including VAT and labour, with parts shown separately.
| Service | Price | What's included |
|---|---|---|
| Anti snap cylinder upgrade (TS007 3 star) | £95 to £135 + cylinder £50 to £120 | Fitted to uPVC, composite or timber euro cylinder doors |
| Mortice deadlock fitting (BS3621 5 lever) | £85 to £115 + lock £35 to £65 | Insurance grade deadlock for timber doors |
| Nightlatch fitting | £75 to £95 + lock £30 to £60 | Yale style rim lock, deadlocking models available |
| uPVC door adjustment | £65 to £95 | Dropped or misaligned doors so hooks engage |
| uPVC multipoint mechanism replacement | £85 to £125 + mechanism £65 to £150 | Failed gearbox or worn strip replaced |
| Patio door lock | £85 to £125 + lock £40 to £80 | Sliding and French door locks |
| Window locks | £35 to £55 + lock £15 to £30 each | Discount for several windows |
| Garage door lock | £95 to £135 + lock £45 to £95 | Up and over and side hung garage doors |
| Lock rekey | £45 to £65 per lock | New keys so old copies stop working |
Prices include VAT and labour. Parts are listed separately. See the full Oxford locksmith price list.
