Key Blanks

Where to Buy Key Blanks in the UK: A Practical Guide to Types, Prices, and Trusted Retailers

Introduction: Why key blanks still matter

Keys might seem old-fashioned in a world of apps and smart locks, but key blanks are the backbone of traditional security — and they’re everywhere. Whether you’re a DIYer needing a spare house key, a landlord stocking up for tenants, or a small garage cutting keys for customers, knowing where to buy quality key blanks in the UK can save time, money, and headaches. Think of a key blank as a raw canvas: it’s simple until it’s cut to match a lock, and choosing the right one makes the difference between a smooth turn and a jammed lock.

Why buy key blanks yourself?

Buying key blanks yourself puts you in control. You can pick the exact profile you need, compare prices across retailers, and keep spares on hand so you don’t get locked out. Plus, bulk buying can be surprisingly cost-effective if you manage properties or run a small repair shop. It’s like stocking up on spare light bulbs — you don’t notice the benefit until the moment you need one.

Types of key blanks: which one do you need?

Key blanks come in many shapes and sizes. Getting the right type is the first step toward a functioning key. Below are common categories you’ll encounter in UK stores, with quick notes to help you decide.

Standard house key blanks

Standard house blanks (often called cylinder keys or Yale-style keys) are the most common. They fit pin tumbler locks used in front doors, internal doors, and padlocks. These blanks are usually brass or nickel-plated and are easy to cut at high-street stores and locksmiths. If your key looks like a typical house key with a single row of cuts along the blade, you’re likely dealing with a standard blank.

Mortice and euro cylinder blanks

Mortice keys are longer and thicker, built for older door mechanisms. Euro cylinder blanks fit modern euro-profile cylinders and often have different shoulder positions and grooves. If your door lock is deeper into the door edge, measure the blade in inches and check the shoulder alignment — that tells you whether you need a mortice or an euro-profile blank.

Dimple and high-security blanks

Dimple keys have small indentations on the face rather than side cuts. They often belong to higher-security locks or office furniture. High-security blanks, like restricted keys, may have patented profiles or require proof of ownership to obtain a blank. These give extra protection but limit where you can buy a matching blank.

Tubular and vending machine keys

Tubular keys have a round, hollow shaft — you’ll see them on vending machines and some bicycle locks. They look different, but blanks are straightforward to source from specialist retailers or dedicated suppliers. If you’ve got a vending or arcade machine, double-check the profile before ordering a blank online.

Car key blanks and transponder keys

Car keys are a different beast. Many modern vehicles use chip-equipped (transponder) keys, and certain car blanks require programming as well as cutting. Buying a physical blade only covers half the job if your car uses immobiliser chips — you’ll also need the chip to be programmed to your vehicle, which often requires professional equipment. For older vehicles, plain car key blanks cut to match the keyway are usually sufficient.

Where to buy key blanks in the UK: high-street and online options

Retailers range from big-box DIY stores to specialist locksmith suppliers. Each has pros and cons depending on urgency, price, and the type of blank you need.

B&Q

B&Q is a go-to for home improvement supplies and tends to stock common key blanks for house and padlock keys. If you want to grab a spare on a weekend trip to the DIY store, B&Q is a convenient choice. They carry standard profiles and often sell key cutting services in-store or via partner services.

Screwfix

Screwfix is popular with tradespeople and often stocks more robust key supplies, including some specialist blanks and bulk packs. Their online listings are comprehensive and they deliver quickly if you prefer not to visit a branch. Screwfix is a sensible stop if you need quantity and industrial-grade blanks.

Wickes and Homebase

Both Wickes and Homebase stock household key blanks and are useful for homeowners doing small projects. They cater to common euro cylinder and Yale profiles, and are handy if you need a spare while shopping for other home supplies. Prices are competitive and the selections suit most domestic needs.

Timpson

Timpson is a high-street specialist in key cutting and minor repairs. They sell blanks and provide cutting services on the spot. If you prefer a human touch — someone to match the blank precisely and test the finished key — Timpson’s experienced staff make it easy. They’re particularly useful when you need a key cut quickly and accurately.

Amazon UK and eBay

Online marketplaces like Amazon and eBay offer a huge variety of blanks, from single pieces to bulk packs. You’ll find rare profiles and exotic types that high-street stores don’t carry. The trade-off is knowing exactly what you’re ordering — photos and measurements matter. Always check the product description closely and, when possible, compare the blank to a photo of your existing key.

Local locksmiths and specialist online retailers

Local locksmiths and specialist online shops are the safest bet for oddball or high-security blanks. Locksmiths will advise on profile compatibility and offer cutting plus programming for transponder keys. Specialist online stores can ship rare blanks, replacement cores, and accessories, and they often provide guidance on what you need to match a specific lock.

How to identify the right key blank

Picking the wrong blank is the most common mistake. Here’s a simple checklist to help you match a blank to your lock.

Match the profile

Profile refers to the cross-section shape of the key blade. Look at the end of your key: is it flat, rounded, or notched? Match that shape to the blank. Profiles are often named (e.g., “Yale 1” or specific car keyways), but a visual match will get you most of the way there.

Measure blade length and shoulder position (use inches)

Take a ruler and measure the blade length in inches and note where the shoulder sits relative to the blade tip. Many blanks look similar, but tiny differences in blade length or shoulder placement can prevent a key from entering the lock. Recording measurements in inches helps when you compare product listings online or ask a locksmith for help.

Check grooves and cuts

Grooves along the blade and side cuts are signalling features. Some blanks have deep central grooves, others have side slots. Compare these to your original key. If you’re unsure, photograph the blade against a white background and send it to a supplier for verification.

Price ranges and what to expect

Prices for key blanks vary depending on type, material, and quantity. Here’s a general idea of what you might pay in the UK market.

Typical retail prices

Basic house key blanks often cost from a small amount per piece when bought individually, while branded or bulk packs can reduce the cost significantly. Specialty blanks, high-security blanks, and certain car key blades can cost more. Remember, an inexpensive blank plus inaccurate cutting may end up costing more than a slightly pricier, correctly matched blank.

DIY cutting versus professional cutting

Cutting your own key blanks is tempting if you’ve got the tools, but it’s not always the best route. DIY key cutting works for simple, non-transponder keys if you have the right jig and a steady hand. However, precision matters — a poorly cut key can get stuck or damage a lock.

When to DIY

If you’re comfortable with tools and need a basic spare for a padlock or internal door, DIY can work. Home drills, files, and cutting jigs are available, and the satisfaction of a successful DIY cut can be great.

When to use a pro

Use a professional for car keys, transponder-equipped keys, high-security locks, or when matching mortice keys. Professionals have calibrated machines and experience, and they can program transponder chips when needed. It’s like choosing between baking a loaf at home and commissioning a wedding cake — both are possible, but the latter benefits from expertise when stakes are high.

Security and legal considerations

There are responsibilities tied to key blanks. Restricted keys and certain car keys require authorization to duplicate because they protect sensitive properties like offices or vehicles. Some high-security systems keep a register of authorized copies. Always ensure you have the right to duplicate a key — copying a restricted or stolen key can have legal consequences.

Transponder chips and immobilisers

Even if you buy the correct car key blank, many modern vehicles require the transponder chip to be present and programmed to the car. Buying a blank and getting it cut won’t start your engine unless the chip is properly paired. Deal with a reputable automotive locksmith or dealer if your car uses immobiliser technology.

Tips for buying online without surprises

When shopping online, product photos, measurements in inches, and clear seller descriptions are your friends. Search for listings that include blade length, shoulder placement, and a clear view of the profile. If you’re unsure, ask the seller for verification photos or advice — many specialist sellers will help you match a key from a picture.

Bulk buying and storage

If you need many blanks, buying in bulk can reduce the per-key cost. Store blanks in a dry place away from corrosive materials — organised trays or labelled boxes keep types sorted and ready for cutting. It’s a small investment that pays off when you’re not fishing through a pile of mismatched blades.

Environmental and practical tips

Spare keys are useful, but avoid overbuying blanks you’ll never use. Recycle metal waste and ask suppliers about eco-friendly packaging where possible. For long-term use, choose nickel-plated or brass blanks for corrosion resistance, especially in coastal or humid environments.

Final checklist before you buy

Before clicking the buy button or handing over cash, run through this quick checklist: confirm the profile visually, measure blade length and shoulder position in inches, verify whether a transponder chip is needed, and choose a reputable seller whether on the high street or online. Doing this avoids wasted purchases and keeps your locks working smoothly.

Buying the right key blank is a small step that keeps life moving — no lockouts, no emergency locksmith calls, and fewer stressful moments fumbling for a spare. With a bit of knowledge and the right supplier, you can stock up, save money, and feel confident that your keys will do their job when you need them most.

Conclusion

Key blanks are deceptively simple but essential. Whether you pick them up from B&Q, Screwfix, Wickes, Timpson, or an online marketplace, the right blank starts with the right identification: the correct profile, accurate measurements in inches, and awareness of whether your key requires a transponder chip. For most household needs, high-street stores and local locksmiths offer convenience and reliable service. For rare or high-security blanks, specialist suppliers or locksmiths are the safe route. With these tips, you’ll know where to look, what to buy, and when to call in a pro — and you’ll be prepared the next time “I need a spare key” sneaks up on you.