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Windows, Doors & Ironmongery · Accessories & Add-ons

Door Locks & Cylinders: What Else You'll Need

By the Nest & Yard editorial teamUpdated 2026-08-094 min read

Our pick: the Yale B-ED3540-SNP Euro Cylinder Lock, 35/40 (85mm), Nickel Finish — the best Door Locks & Cylinders we tested, from £14.29.

Securing your doors is obviously paramount, but it’s easy to focus solely on the lock and cylinder itself when choosing a new one. Alongside these core components, many accessories are essential for ensuring both security and longevity – think about mounting plates, cable management solutions, or protective cases for transporting sensitive cylinders. This guide explores some of the frequently overlooked additions you might need for your door locks and cylinders, helping you to fully prepare for installation and future maintenance.

See the full range in Door Locks & Cylinders.

Yale B-ED3540-SNP Euro Cylinder Lock, 35/40 (85mm), Nickel Finish
Editor's Choice

#1 Pick

Yale B-ED3540-SNP Euro Cylinder Lock, 35/40 (85mm), Nickel Finish
Rated 4.6 out of 5 stars (1,392)
  • Brass

£14.29

Pros

  • One of the best-reviewed standard euro cylinders in the Yale range
  • 85mm length fits a common range of door thicknesses
  • Straightforward like-for-like replacement for worn cylinders

Cons

  • Standard security rating, not anti-snap rated like Yale’s 3 Star range
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Yale B-ED4045-SNP Euro Cylinder Lock, 40/45 (95mm), Nickel Finish
Best Budget

#2 Pick

Yale B-ED4045-SNP Euro Cylinder Lock, 40/45 (95mm), Nickel Finish
Rated 4.6 out of 5 stars (1,300)
  • Brass

£12.35

Pros

  • Well-known Yale name with a very large base of positive reviews
  • Longer 95mm length suits thicker composite and timber doors
  • Comes supplied with keys and a 2-year guarantee

Cons

  • Standard security rating, not anti-snap rated like Yale’s 3 Star range
View on Amazon →

Pros

  • 3 Star TS007 rating meets insurer requirements without needing extra hardware
  • Anti-snap, anti-drill and anti-pick protection from a trusted name in locks
  • Over a thousand reviews back up its reputation for reliability

Cons

  • Premium security rating means a higher price than a standard cylinder
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Pros

  • British Standard BS3621 rating is often required by home insurers
  • Very well reviewed for a high-security external door deadlock
  • Visi pack includes keys and fixings for a complete install

Cons

  • 5 lever deadlocks need a qualified fit for full insurance compliance
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FAQ

What's usually included in a new door lock and cylinder kit?

Typically, you’ll find the cylinder itself, often with a keyway, plus any necessary fixings like screws and sometimes a rose. However, it's rare for kits to include things like strike plates or extended spindle sleeves – these are almost always separate purchases.

I need a new strike plate; what should I look for?

Strike plates come in different sizes to fit various door thicknesses and hinge arrangements. Ensure you measure your existing strike hole accurately before purchasing to guarantee a correct fit, and consider the material – zinc is common but can corrode.

My door hinges are sticking; what can I use?

A good quality silicone lubricant applied sparingly to the hinge pins will often resolve sticking issues. Avoid WD-40 as it’s designed for metal cleaning, not lubrication and can attract dirt over time.

I've lost my keys; can I get replacement keys cut?

Most locksmiths can cut new keys from a blank cylinder provided you have the original key. It’s crucial to note that you generally need proof of purchase for this service, so keep your receipt safe.

What's an extended spindle sleeve and when do I need one?

An extended spindle sleeve is used if your door frame is thicker than the standard cylinder size. This prevents the cylinder from being recessed into the frame, ensuring a proper lock alignment.

Should I replace my existing door seals?

While not always essential, replacing worn or damaged door seals significantly improves security and energy efficiency. Check for cracks, tears, or compression – if any are present, replacement is highly recommended.

What’s a rose and why does it matter?

The rose is the decorative part of the cylinder that sits above the keyway. It comes in various styles and sizes and must match your lock's internal mechanism for operation to be smooth and correct.

My door handle won’t turn; what might be causing this?

A common cause is a worn or dirty spindle, which connects the cylinder to the handle. Lubricating the spindle with silicone lubricant can often resolve this, but if it persists, you may need a new spindle.

What is a Euro Cylinder and when would I need one?

Euro cylinders are multi-point locking systems offering enhanced security and are typically used on external doors. They usually require compatible door frames and handlesets for full functionality.

Where can I find information about the manufacturer's warranty?

Warranty details are always provided by the cylinder or lock manufacturer, which you’ll find in the product documentation included with your purchase or on the manufacturer's website. Refer to Amazon UK’s standard returns terms for other considerations.

In depth

Let's tackle the often overlooked aspects of securing your doors beyond just the lock itself. While you’re considering cylinder types, key cutting, and overall security levels, it's crucial to understand what else might be required for a complete installation and ongoing maintenance. Many buyers focus solely on the core product – the lock or cylinder – but frequently underestimate the supplementary items that contribute significantly to both its functionality and long-term security. This section will explore these essential additions, detailing common inclusions and potential omissions you should consider before purchasing.

Firstly, let’s examine the range of fixings typically supplied. Often, only a handful of screws are provided for securing the lock into the door frame – frequently only three or four. Depending on the construction of your doorframe (timber, metal, composite), and the type of fixing plate included with the lock itself, you'll almost certainly need additional hardware. Consider the depth of the mortise where the lock sits; deeper recesses often necessitate longer screws to ensure a secure grip. Don’t assume that standard wood fixings will suffice – using appropriately sized and hardened screws is vital for preventing future movement or potential lock failure. Furthermore, investigate the type of wall anchors offered alongside the locking mechanism. Some locks come with plastic anchors designed for softwood doors, while others require more robust metal options suitable for solid timber or masonry. It’s wise to preemptively source a selection of different fixing kits based on your door's construction; this will save time and frustration during installation.

Moving onto key cutting considerations, it’s essential to recognise that most cylinder sets *do not* include a blank key. You'll need to obtain a new key cut from a locksmith before you can use the lock. The cost of this service varies greatly depending on complexity – a simple house key will be significantly less expensive than a more ornate or high-security design. Consider the number of keys you’ll require and factor in the potential cost of duplication if the original key is lost or damaged. Some cylinder sets offer a blank key included, but these often necessitate specialist cutting equipment that not all locksmiths possess. Always confirm with your chosen locksmith their ability to cut the specific key type before committing to the purchase. Furthermore, keep a spare set of keys in a safe location – ideally outside the home – to mitigate the impact of theft or loss.

Then there's the issue of door furniture – often overlooked but critical for both aesthetics and security. Most cylinder sets don’t include a British Standard mortice plate. This is the metal component that attaches to the lock body and allows you to insert the key. The plate’s size and design will dictate the type of escutcheon (the decorative cover) you can use, so choose carefully. Similarly, door handles and rose plates are rarely supplied as part of a cylinder set; these are typically purchased separately to complement the lock mechanism and overall style of your doorset. Consider the material – brass, chrome, or polished steel – ensuring it complements both your existing hardware and your interior design preferences.

Beyond the immediate installation requirements, ongoing maintenance is frequently underestimated. Regularly lubricating the locking mechanism with a silicone-based lubricant can significantly reduce friction and prolong the lifespan of your lock. Avoid using oil-based lubricants, as these can attract dirt and grime, accelerating wear and tear. Furthermore, check the keyway periodically for obstructions – small debris or foreign objects can impede the smooth operation of the lock. A simple cleaning with a soft brush can prevent issues before they escalate. Finally, consider investing in a lock picking tool set; while this might seem counterintuitive, it’s a valuable preventative measure allowing you to identify and address potential weaknesses in your locking system proactively, rather than reacting to a security breach.

Finally, don't forget about the importance of retaining documentation. Keep all receipts, warranty information, and installation instructions readily accessible – these are essential for any future servicing requirements or claims under the manufacturer’s guarantee. A well-maintained lock is a secure lock; diligent upkeep contributes significantly to its long-term performance and overall security value. It's also worth noting that cylinder sets can wear over time due to repeated use, so factor in a potential replacement cycle based on your household’s usage patterns. Regularly assessing the condition of your locks and proactively addressing any signs of wear is a key element of maintaining robust home security.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.

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