Before You Sign for a New Front Door: The Security Details That Separate a Good Job From a Sales Pitch

Buying a front door should feel straightforward. You choose a style, agree a price, and get it fitted. In practice, the front door market is full of impressive-sounding claims that can be hard to pin down. Police approved. Bank vault security. Lifetime guarantee. Anti-snap. Some of those phrases mean something specific. Others are marketing noise.

If you are replacing a front door in 2026, the sensible approach is to treat it as a security purchase first and a home improvement purchase second. That does not mean you have to ignore how it looks. It just means the colour and the door furniture should not be the only things you check before signing.

Here is a straightforward checklist for UK homeowners who want a door that is genuinely harder to break into, not just harder to walk away from in a showroom.

Start with the door set, not the door leaf

A front door is not just a slab of composite, timber or uPVC. It is a system: the leaf, the frame, the hinges, the locking mechanism, the cylinder, the glass, and the way it is fixed into the wall. A premium door leaf fitted into a weak frame with poor fixings is still a weak door.

When a salesperson talks about the door, ask about the door set. That is the complete assembly that should have been tested together. If the certification only covers the leaf, or the lock, or the glass in isolation, you are not getting the full picture.

Lock standards: what actually matters

The main lock on a front door should be a proper multipoint locking system, not a single latch that looks sturdy in a brochure. For the cylinder, the part where the key goes, look for a TS 007 3-star rating. That is the standard that covers enhanced security performance for replacement cylinders and associated hardware, including resistance to snapping, bumping, picking and drilling.

You may also see BS 3621 mentioned. That is a standard for thief-resistant lock assemblies, and it is a useful benchmark for the main lock. It is not the only thing to check, but it is a recognisable standard rather than a vague claim.

A 3-star cylinder is the simpler route. Some systems use a 1-star cylinder with 2-star security furniture, and that can also meet TS 007, but it is more complicated to verify. If you are comparing quotes, ask for the exact cylinder specification in writing. Do not settle for the word anti-snap on its own.

Also ask about hinge bolts, dog bolts, and the strength of the frame. A good door set will have security features on the hinge side as well as the lock side. If the door has glass panels, check what type of glass is being used. Laminated glass is tougher than ordinary glass and is a sensible choice for a front door.

Certifications: read the certificate, not the sticker

PAS 24 is the security performance standard most homeowners will come across. A door set that meets PAS 24 has been tested against a range of attack methods, not just a quick push and shove. Secured by Design is a police-backed initiative that promotes security standards, and it is a useful sign that a product has been designed with crime prevention in mind.

But the key word is certificate. A sticker on a door is not enough. Ask for the certificate number and check that the certificate covers the exact door model, frame, glass and locking system you are buying. A door can be certified as a complete set, and swapping the glass or the lock can take it outside that certification.

If someone says the door is police approved, ask which scheme and which certificate. If they cannot produce a number, treat the claim as sales talk. The same goes for a BSI Kitemark. It is a recognised mark, but it should relate to the product you are actually buying.

Installation quality is half the security

A certified door set can still be fitted badly. Poor installation can leave gaps, weak fixings, or a frame that can be levered away from the wall. Ask how the door will be fixed into the opening, what the wall construction is, and how many fixings will be used. A good installer will want to survey the opening before giving a final price.

Check that the door is properly sealed and that the frame is packed and fixed securely. Ask what happens if the door drops or the lock becomes stiff after a few months. A door that does not close cleanly is not just annoying; it can put strain on the locking points and make the door less secure over time.

Also ask who is doing the work. Is it an employed installer, a subcontractor, or a team sent by the manufacturer? There is nothing wrong with subcontractors, but you want to know who is responsible if something goes wrong. And check that the installer is registered with a competent person scheme such as FENSA or Certass, or that building control notification is being handled.

Questions to ask before signing

• What is the exact make and model of the door set?
• Can I see the PAS 24 certificate, and does it cover this door, frame, glass and lock?
• What is the exact cylinder specification? Is it TS 007 3-star?
• What type of glass is in the door, and is it laminated?
• What hinge-side security features are included?
• How will the frame be fixed into my wall, and how many fixings will be used?
• Is the installer employed or subcontracted, and which competent person scheme are they with?
• What exactly does the guarantee cover, and for how long?
• Does the price include VAT, disposal, making good, and any building control notification?
• What happens if the door needs adjusting after fitting?

Get the important answers in writing on the quote. A verbal assurance is not much use six months later when the lock feels loose and the company has stopped answering the phone.

Sales claims to treat with suspicion

Be wary of police approved claims without a certificate, bank vault security language, and lifetime guarantees that turn out to cover only the door leaf and not the locks or installation. Be sceptical of a discount that expires tonight if the salesperson has not yet surveyed the opening or confirmed the specification. And do not accept a claim that building regulations do not apply to replacement doors. They can, particularly around thermal performance and ventilation, so the installer should know how compliance is being handled.

A new front door is a significant purchase. The right one should feel solid, close smoothly, lock cleanly, and come with paperwork that matches the sales pitch. If the details are vague before you sign, they will not get clearer after the fitting team has left.