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Door strikes are the small, often overlooked pieces of hardware that determine whether a door truly secures a space or just looks like it does. Think of a door strike as the handshake between the lock and the frame — if it’s weak or misaligned, the whole security system is compromised. Whether you’re protecting a flat, a shop, or an office, picking the right strike affects safety, accessibility, and even fire safety compliance.
Before you buy, it helps to know what kind of strike you need. Strikes vary by installation style, electrical features, and fail mode. Choosing the wrong type is like buying winter boots for the beach — they’ll look fine but won’t perform when it matters.
Electric strikes allow electronic control of the latch via an access system or a release button. They’re common in commercial settings and in homes with smart locks. Electric strikes can be powered by low-voltage transformers and are often paired with devices labeled as 12 volt DC, like contactless exit buttons, to create an integrated access solution.
Mortice strikes sit flush inside a frame pocket and are a neat, robust option for wooden or metal frames. Surface-mounted strikes attach to the face of the frame and are easier to retrofit. If your door frame is older or you don’t want major carpentry, surface-mounted models can save time.
Fail-safe strikes unlock when power fails, which is useful for emergency exit routes. Fail-secure strikes stay locked without power — great for perimeter doors where you don’t want an outage to unlock the door. Choosing between them depends on whether safety or security is the priority for that doorway.
Magnetic locks use an electromagnetic plate and armature to hold a door closed; they’re smooth and silent. Contactless exit buttons, like some 12 volt DC models, let people leave without touching surfaces — handy in high-traffic or hygiene-conscious environments. These components are typically stocked by electrical suppliers and door-hardware specialists.
Not all retailers carry the same selection or brands, so where you shop matters. Below are reliable UK outlets for door strikes, ranging from specialist suppliers to mainstream home-improvement chains.
Expert Electrical is known for a broad range of access control and electrical items, including door hardware accessories. If you’re hunting for niche parts such as contactless exit buttons or keeper plates, this type of specialist can be a fast source for trade-grade items.
Screwfix combines convenience with a strong range of locks and strikes for both trade and DIY. They tend to stock mortice strikes, electric strikes and associated fixings — ideal if you want same-day pickup from a nearby branch or quick online delivery to your site.
Wickes appeals to homeowners and pros who want straightforward hardware and clear installation guides. Their range includes standard strikes and locks suitable for most internal and external timber doors. If you prefer buying in-person and viewing the product before purchase, Wickes is a good bet.
B&Q offers a broad selection for home upgrades, including door hardware for domestic doors. They make it easy to compare finishes, sizes, and matching handles so you can keep the look consistent across your home while upgrading security.
Toolstation stocks professional-quality hardware and frequently provides competitive prices. Their selection includes electric strikes and other access-control gear that tradespeople use, which means you’ll find robust, durable options for busy doors.
For specialist ironmongery, IronmongeryDirect is a great source. They serve both trades and ambitious DIYers with a deep catalogue of strikes, plates, and accessories in a variety of finishes and security grades.
Homebase is another high-street option that combines convenience with a decent selection of door hardware. If you’re fitting or upgrading a standard internal or external household door, they have the basics plus some higher-end options.
Amazon can be a useful marketplace when you need a specific part fast or want to compare user reviews. You’ll find everything from mass-market strikes to specialist components, but make sure to buy from reputable sellers and check specifications closely before purchasing.
Certain components turn up repeatedly across UK stores and supplier catalogues. Familiarity with the names and functions will make shopping easier and help you match parts during installation or repair.
This kind of contactless exit button is handy for transit doors where you don’t want physical contact. It usually runs on 12 volt DC and pairs with electric strikes or mag locks. You’ll find these at electrical suppliers and specialist access-control vendors.
A keeper plate is the metal plate that receives the latch. Spare keeper plates allow you to replace a worn or misaligned strike without changing the lockset. They’re useful for quick repairs and are often offered as OEM spares by specialist suppliers.
Legend plates like the Schneider ZBY2366 label controls such as “stop” and “start” and are common in access-control and electrical installations. While not a strike itself, these plates contribute to a tidy, professional installation where users need clear instructions.
Although listed under lighting, emergency bulkheads are often carried by the same electrical suppliers who sell door hardware. These units provide emergency illumination for exit routes and are part of a compliant emergency escape setup. You’ll often see them stocked alongside access-control gear in trade suppliers.
Picking the right strike boils down to compatibility, security, and installation constraints. Use this checklist to avoid costly returns and wasted time.
Start by measuring door thickness in inches — many UK domestic doors are about 1 3/4 inches thick. Also measure the gap between the door edge and frame in inches to ensure the strike plate will align properly. These dimensions dictate which strikes and keepers will fit without heavy modification.
Backset (the distance from the door edge to the centre of the handle) and latch projection determine whether a strike lines up with the latch. Measure in inches and compare with product specs. Choosing a strike that matches these dimensions avoids cutting new mortices or adapting frames.
If the door is part of an emergency escape route, opt for fail-safe so the door unlocks in a power outage. For secure rooms or external doors, a fail-secure strike keeps the door locked when the power goes out. Think through daily use and safety requirements before deciding.
Match the strike finish to nearby hardware — satin chrome, polished brass, and black are common. A consistent finish makes the upgrade look professional and helps the strike blend with handles and plates.
Installing a strike is a satisfying DIY job for many people, but it can get tricky if measurements are off. Here’s a step-by-step approach and the tools you’ll likely need.
Gather a drill, wood chisels, screwdrivers, a tape measure in inches, a spirit level, and appropriate screws. If you’re installing an electric strike, also have a low-voltage power supply and basic wiring tools on hand. Safety glasses are a must when chiselling or drilling.
1) Mark the striker location in inches from the door edge and centreline. 2) Mortice or cut the frame to fit the strike body. 3) Secure the strike plate and test the latch alignment. 4) If using an electric model, wire it according to diagram and test the fail mode. Make small adjustments in increments of 1/16 inch rather than large cuts.
Avoid misalignment by double-checking measurements before you cut. Don’t overtighten screws that could deform the strike or frame. If installing an electric strike, isolate the power before wiring and follow the manufacturer’s wiring diagrams precisely to prevent damage.
Once installed, a few minutes of routine care can add years to a strike’s life. Here are common maintenance tips and quick fixes if things go wrong.
Wipe metal parts clean and apply a small amount of graphite or specialist lock lubricant to moving parts every 6 to 12 months. Avoid heavy oils that can collect dust and grime. For exterior doors, check for rust and treat promptly to avoid seizing.
If the door doesn’t latch cleanly, tighten hinge screws and check strike alignment in inches. “Chattering” — where an electric strike rapidly locks and unlocks — often signals wiring issues or incorrect voltage. Verify the power supply and call a pro if you’re unsure.
Replace the strike if the keeper is visibly worn, if screws spin out, or if the strike body is cracked. Small alignment issues and loose fixings are repairable, but structural damage to a frame or strike usually justifies replacement for long-term security.
Prices vary widely based on type, finish, and electrical features. Basic mechanical strikes for internal doors might start in the low tens of pounds, while robust electric strikes or specialist fail-secure units can run into higher sums. Trade suppliers and specialist retailers often offer better value for high-use or commercial-grade items than generalist stores.
Spending a bit more on a branded, higher-security strike typically saves money over time due to fewer replacements and better resistance to forced entry. Balance upfront cost with expected use — exterior or high-traffic commercial doors deserve a higher-grade strike than a guest bedroom door.
Need a quick match? Here’s a simple rule of thumb to save time when shopping.
Best for contactless exit buttons, electric strikes, and integration components such as 12 volt DC devices. Ideal when you need trade-grade parts or specific technical specs.
Great for standard mechanical strikes, finishes that match household hardware, and quick collection. These are convenient for DIYers and small maintenance jobs.
Use these for specialist finishes, high-security options, and detailed technical support on compatibility and standards. They’re a good source if aesthetics and long-term durability matter most.
Before you click “buy” or pick up the box, take a breath and verify measurements in inches, confirm compatibility with your lock type, and check the fail mode. Don’t forget to read installation notes so you know whether the product is a straight swap or a larger retrofit. With a little preparation, the right strike will fit smoothly and protect your space for years.
Door strikes might be small, but they play a big role in security, safety, and convenience. Whether you’re buying an ESP contactless exit button, a spare keeper plate, or a heavy-duty electric strike, knowing the types, where to shop in the UK, and what to measure in inches will make the process far less painful. Take time to match the strike to the door function and traffic patterns — that small investment of thought upfront prevents headaches later. And if wiring or complex cutting is involved, don’t hesitate to call in a qualified installer for peace of mind.
| Door Strikes | Price | |
|---|---|---|
| Schneider Zby2366 Legend Plate Stop-start Legend | £ 1,70 | |
| Esp Spare Keeper Plate | £ 21,59 | |
| Esp 12v Dc Contactless Exit Button | £ 28,22 | |
| Salvus Max Switchable Wattage Non-maintained Emergency Bulkhead Collingwood | £ 98,40 | |
| Collingwood Salvus Max Switchable Wattage Non-maintained Emergency Bulkhead | £ 98,40 |
