Window Locks

Window Locks at MTN Shop UK

At MTN Shop UK we sell window locks covering key-operated window locks, swivel and snap latches, and dual screw locks for vertical sliding sash windows, in white and electro brass finishes and supplied singly or in multi-packs. Most are keyed alike within a range, so one key operates several locks, and fixings are included. The range comes from established lock brands such as Yale.

These surface-fitted locks suit timber casement and sliding sash windows, where they add a key-operated point that helps meet the security many home insurers expect on accessible windows. They are a practical fit for landlords and property managers, locksmiths, social housing teams, joiners and glaziers.

Pair window locks with the rest of our locks and security, mortice locks and latches and screwdrivers for fitting.

Window Locks
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Window locks explained: types, keys and finishes

Window locks add a secondary, key-operated point to timber windows, both to deter forced entry and to satisfy the security many insurers expect on accessible openings. The range at MTN Shop UK covers casement and sliding sash windows from brands such as Yale, so the main job is matching the lock to the window type and finish.

Window latches and snap locks

For side-hung timber casement windows, a surface-fitted latch or snap lock is the usual choice. The Yale 8K101 window latch and the 8K118 economy window lock are typical, fitting to the frame and sash and locking with a key, in white or electro brass to suit the joinery. These are sold singly and in packs of four, which is useful when securing a whole property in one go.

Dual screws for sash windows

Vertical sliding sash windows use a different method. A dual screw, such as the Yale 8013 in a brass finish, passes a bolt through both meeting rails so the two sashes cannot be slid apart, locked and unlocked with a key. They are supplied in pairs to cover both sides of a wider sash.

Keys, finishes and packs

Most window locks in a range are keyed alike, so a single key works every lock in the house, which is far more practical than a separate key per window. Spare and additional keys are available, for example replacement keys to suit the 8K101 and 8K102. Finishes are typically white, to blend with painted or uPVC-look frames, and electro brass or brass to match timber and traditional ironmongery.

Insurance and key-operated locks

Many home insurance policies ask for key-operated locks on all accessible windows, usually those at ground floor or reachable from a flat roof, drainpipe or outbuilding. Fitting a key-operated lock rather than a non-locking catch is what meets this wording. Always check the exact policy requirement, as it is set by the insurer rather than by a fixed standard.

Choosing the right window lock

Start with the window. For side-hung timber casements, choose a latch or snap lock. For vertical sliding sash windows, choose a dual screw or sash stop. Match the finish to the existing frames and handles, and buy a keyed-alike pack so one key fits every window. Note that most uPVC windows already have integral multi-point locking, so these surface locks are mainly for timber windows.

Build your kit with locks from Yale, plus screwdrivers and safety gloves for fitting. For bulk orders, keyed-alike packs across a whole property or portfolio, or a specific finish, request a quote.

Frequently Asked Questions

It depends on the window. Side-hung timber casement windows take a surface latch or snap lock, while vertical sliding sash windows take a dual screw that bolts the two sashes together. Match the type to how the window opens.
Most uPVC windows already have integral multi-point locking built into the frame, so these surface-fitted locks are mainly intended for timber casement and sash windows.
Within a range, most are keyed alike, so one key operates every lock fitted. This is more practical than carrying a separate key for each window, and spare keys are available to suit the common models.
Many home insurers require key-operated locks on all accessible windows, typically ground floor or those reachable from a flat roof or drainpipe. The exact requirement is set by your insurer, so check the policy wording before fitting.
A dual screw is used on vertical sliding sash windows. A bolt passes through both meeting rails so the sashes cannot be slid apart, and it is locked and released with a key. They are usually supplied in pairs for wider windows.
Yes. Additional and replacement keys are available to suit the common models, for example the 8K101 and 8K102, so you can add keys for other household members or replace a lost one.