Insurance-approved hardware explained: secure your policy

April 21, 2026
Local Locksmith
Local Locksmith, locksmith service, locksmith solution, residential locksmith services Bristol

TL;DR:

Insurance-approved hardware meets British Standards and is independently tested for security.

Using non-compliant locks can lead to insurance claim denials after a burglary.

Upgrading to certified locks enhances security and may reduce insurance premiums.

Imagine filing a claim after a break-in, only to be told your insurer won’t pay out because your locks didn’t meet their requirements. It happens more often than most property owners in Bristol and South Gloucestershire realise. Insurance-approved hardware is a specific category of locks, handles, and reinforced fittings that meet the security criteria demanded by major UK insurers. Without the right hardware in place, your policy may offer far less protection than you think. This guide explains exactly what qualifies as insurance-approved hardware, why insurers care so deeply about it, and how you can check and upgrade your property to stay fully covered.

What does insurance-approved hardware mean?
Why insurance-approved hardware is crucial for your policy
Key types and features of insurance-approved hardware
How to check and upgrade your hardware for compliance
The real value of insurance-approved hardware: beyond compliance
Expert help for insurance-approved upgrades in Bristol
Frequently asked questions

Key Takeaways

Point	Details
Approved hardware protects insurance	Using insurance-approved locks and fittings ensures your policy remains valid.
British Standard is essential	Look for the BS3621 kite-mark to confirm your locks meet insurer requirements.
Upgrade for security and compliance	Upgrading hardware can both prevent break-ins and avoid denied insurance claims.
Expert advice helps	A professional locksmith can quickly audit and upgrade your property to the right standard.

What does insurance-approved hardware mean?

Insurance-approved hardware refers to locks and security components that meet or exceed the standards set by recognised UK testing bodies and required by most home and commercial insurers. It is not simply a quality label. It is a defined benchmark that separates hardware capable of resisting forced entry from products that look solid but offer limited real-world protection.

The most widely referenced standard in the UK is BS3621, which applies primarily to mortice deadlocks. Insurance-approved hardware frequently refers to locks and components meeting standards such as BS3621, and this standard is printed on compliant locks alongside the British Standard kite-mark. The kite-mark is a small symbol that confirms a product has been independently tested and certified. If you see it on a lock, that product has passed rigorous assessments covering resistance to drilling, picking, and key duplication.

Regular, off-the-shelf locks are not automatically compliant. A lock may look substantial and feel heavy, but without the kite-mark and relevant BS number, it will not satisfy most insurers. This distinction matters enormously when you come to make a claim.

Here is a quick overview of hardware types that commonly qualify:

BS3621 mortice deadlocks for timber doors
BS8621 cylinder deadlocks with key-locking on the inside
BS10621 cylinder deadlocks with thumbturn on the inside
Multipoint locking systems meeting PAS24 or Secured by Design criteria
Window locks meeting specific insurer criteria or BS standards
Door chains and door limiters rated to BS EN standards

The table below illustrates the key differences between approved and non-approved hardware:

Feature	Insurance-approved hardware	Standard hardware
British Standard kite-mark	Yes	Rarely
Independent testing	Yes	No
Drill and pick resistance	Certified	Variable
Accepted by major UK insurers	Yes	Often not
Documented compliance	Yes	No

According to research into lock grades and security, a significant proportion of leading UK insurers list approved hardware as a specific policy requirement for main entry points, meaning non-compliant locks can directly affect the validity of your cover.

Why insurance-approved hardware is crucial for your policy

With a clear understanding of what insurance-approved hardware means, it’s important to know why insurers are so firm on these requirements. The short answer is that they are managing risk. Locks that meet British Standards have been independently proven to resist the methods most commonly used in residential and commercial burglaries across the UK.

Many insurance claims are denied due to using locks that do not meet approved standards. Non-compliant hardware is one of the leading reasons theft claims are rejected, and it is a clause that many policyholders only discover after a break-in has already occurred.

Most standard home insurance policies specify that main entry doors must be fitted with British Standard locks. Some policies extend this requirement to rear doors, garage doors, and accessible windows. Reading that policy wording carefully is essential.

Here are the key steps to check your hardware and policy wording:

Locate your policy documents and search for wording around lock requirements, door security, or British Standards.
Identify what locks are currently fitted to all entry points including back doors, patio doors, and any accessible windows.
Check for the kite-mark and BS number stamped or engraved on each lock.
Contact your insurer directly if you are unsure whether your fittings satisfy their criteria.
Arrange a professional security audit with a qualified local locksmith if you need expert guidance.

“Security compliance is not a formality. Every policy requirement around lock standards exists because insurers have the data showing which hardware actually fails during a break-in. If your locks don’t meet the standard, you’re carrying a risk that your policy won’t cover.”

The financial consequences of getting this wrong are severe. A single denied claim after a burglary could leave you covering thousands of pounds in losses out of pocket, on top of the stress and disruption the break-in itself causes. The advantages of approved locks go well beyond paperwork.

After a burglary, insurers typically send a loss assessor to inspect the property. That assessor will examine the points of entry and document the hardware that was fitted. If the locks do not carry the required certification, the claim can be declined regardless of whether you have paid your premiums diligently for years.

Pro Tip: Keep a written record or photographs of every lock installation, including the product name, BS standard, and date of fitting. Store receipts and any compliance certificates in a safe place alongside your insurance documents.

Key types and features of insurance-approved hardware

Having explored why insurers care, let’s detail the specific types of locks, bars, and bolts that typically qualify. Understanding the differences helps you make informed choices when upgrading your property.

Certain hardware types are commonly mandated by home insurers across the UK, and knowing which category your existing locks fall into is the starting point for any compliance check.

The main hardware categories include:

Mortice deadlocks (BS3621): Fitted into the body of a timber door, these are the benchmark standard for front and back doors.
Euro cylinder locks (BS8621 or BS10621): Common in UPVC and composite doors, these must be anti-snap rated to meet insurer expectations.
Multipoint locking systems: Standard on modern UPVC doors, but the cylinder used within them still needs to meet British Standards.
Window locks: Sash locks, casement locks, and window restrictors all have specific requirements depending on insurer policy.
Additional hardware: Door bolts, hinge bolts, and security chains can all contribute to compliance when correctly rated.

The table below provides a practical reference:

Hardware type	Standard	Location	Insurer compliant
Mortice deadlock	BS3621	Timber front/back door	Yes
Euro cylinder (anti-snap)	BS8621/BS10621	UPVC/composite door	Yes
Standard euro cylinder	None	UPVC/composite door	No
Multipoint lock system	PAS24/Secured by Design	UPVC/composite door	Often yes
Basic window latch	None	Windows	No
Rated window lock	BS insurer requirement	Windows	Yes

When shopping for hardware or reviewing what you have, look for the following kite-marks or certifications:

British Standard kite-mark with relevant BS number
Secured by Design approval (police-backed scheme)
PAS24 certification for doors and windows
Sold Secure ratings (Silver or Gold for higher security)

Exploring types of home locks can help you understand where each product category sits within the wider security picture.

Pro Tip: Even a high-quality, expensive lock may not carry BS certification. Always ask the supplier for documented proof of compliance before purchasing, and never assume that price equals approved status.

How to check and upgrade your hardware for compliance

Understanding what to look for is one half of the challenge. The next step is to ensure your property actually meets the standard. Whether you own a house in Bristol or manage a commercial premises in South Gloucestershire, a methodical approach saves time and prevents costly surprises.

Upgrading to insurance-approved hardware is key for policy compliance and improved security, and the process does not need to be complicated when you follow clear steps.

Here is a practical numbered approach:

Start at the front door. Examine the lock body or cylinder for any markings. A BS3621 kite-mark will be stamped on the faceplate of a mortice lock or on the body of a cylinder.
Move to secondary entry points. Check back doors, side gates with locks, garage doors, and patio doors. Each one represents a potential weak point.
Check all accessible windows. Ground floor and easily reached first-floor windows often need rated locks under policy terms.
Review your insurance policy wording. Look for clauses referencing lock standards, British Standards, or approved hardware.
Photograph everything. Clear photos of each lock, including any visible markings, create a useful record for your insurer.
Consult a qualified locksmith if you find any locks without visible certification or if you are uncertain about compliance.

Understanding lock insurance standards helps you interpret what your policy actually requires before any work begins. A local locksmith familiar with Bristol and South Gloucestershire properties can quickly identify which fittings fall short and recommend the most cost-effective path to compliance.

For those upgrading door locks on older properties, it is worth noting that some traditional timber doors may need minor adjustments to accommodate modern British Standard mortice locks. A professional installer will handle this without damaging the door frame.

Pro Tip: Take clear, time-stamped photographs of every lock on your property, including the kite-mark where visible. Store these digitally and share them with your insurer if asked to prove compliance after an incident.

The real value of insurance-approved hardware: beyond compliance

Compliance is the threshold, not the ceiling. We see many property owners treat insurance-approved hardware as a box-ticking exercise, something to sort out quickly and then forget about. That mindset misses the bigger picture entirely.

The key advantages for homeowners who invest in quality, certified hardware go well beyond keeping a policy valid. British Standard locks are physically harder to break, pick, snap, and drill. That means fewer successful break-ins, less trauma, and fewer expensive repairs in the first place.

In our experience, properties fitted with certified anti-snap cylinders and BS3621 mortice locks are substantially less likely to be targeted. Opportunist burglars are looking for the easiest entry point. Approved hardware removes that easy option. It is a deterrent as much as a barrier.

Lowering your risk profile can also reduce your insurance premiums over time. Many insurers reward proactively secured properties. So the investment in proper hardware can pay back in multiple ways, not just in claim protection but in ongoing savings. Security, done properly, is not a cost. It is an investment in your peace of mind.

Expert help for insurance-approved upgrades in Bristol

If you’re ready to secure your policy and property, professional support is just a step away. At AHLP Locksmiths, we supply and fit a full range of insurance-approved hardware across Bristol, South Gloucestershire, and Gloucester. Our team understands exactly what your insurer is likely to require, and we source only British Standard and certified products for every job.

From a quick compliance check to a full security upgrade, our 24/7 locksmith services are available whenever you need us, with transparent pricing and no call-out fees. You can also discover lock upgrade benefits on our website to understand exactly what a certified upgrade delivers for your home or business. Call us on 07700 100146 or visit ahlp.co.uk to book a visit or ask any questions.

Frequently asked questions

What is the difference between a regular lock and an insurance-approved lock?

Insurance-approved locks meet British Standards such as BS3621 required by insurers, whereas regular locks may not provide the required level of security or documented compliance that insurers demand.

How can I tell if my lock is insurance-approved?

Insurance-approved locks usually display the British Standard kite-mark and a BS number. Kite-marks and BS numbers are visible on compliant locks, typically stamped on the faceplate or cylinder body.

What happens if I don’t use approved hardware?

Your insurer may decline claims related to theft or break-in. Claims are frequently declined where insurers’ lock requirements are not met, regardless of how long you have held your policy.

Do window locks need to be insurance-approved?

Yes, many insurers require window locks to meet specific standards for full policy coverage. Window locks are often mandatory for insurance, particularly on ground-floor and easily accessible windows.

Insurance-approved hardware explained: secure your policy