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Door chain for a uPVC door

Updated: October 2026

You have a uPVC or composite front door, and a listing has just told you the chain fits it. A door chain for a uPVC door is usually a timber chain with a plastic claim in the title, and the box still holds wood screws. The decision is whether you may drill, and what happens to the warranty and the fixing if you do. The twelve-row table is on the [door chain comparison](/hub/door-and-window-security/door-chain). Peter F. used the listings saved on 19 October 2026, plus Home Secure, DIY Doctor, UK Composite Doors and the Master Locksmiths Association. No door was drilled for this page. A qualifying purchase can earn a commission at no extra cost to you.

You have a uPVC or composite front door, and a listing has just told you the chain fits it. A door chain for a uPVC door is usually a timber chain with a plastic claim in the title, and the box still holds wood screws.

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Why a timber chain fails on uPVC

A typical uPVC door is a plastic profile, often with steel somewhere inside, and a hollow chamber where a wood screw finds nothing to bite. Home Secure says ordinary screws pull out of that skin, and drilling may affect the guarantee. DIY Doctor makes the same split: composite cores are often timber, while uPVC often wants a self-tapping screw into the steel, or a restrictor that avoids the face. Neither source says the steel sits in the same place on every door. Avon and Somerset Police say you double-lock uPVC by lifting the handle, then turning and removing the key. West Yorkshire Police say a chain will not secure a locked door against burglary. KAFENDA states 20 mm screws, and Yale WS6 reviews say the supplied screws are for solid wood. Timber steps stay on how to fit a door chain.

What the listings actually say

Five titles claim uPVC or PVCu. FAST-FX's bullets say front doors and uPVC doors. A UK review says take care with screws into a uPVC frame. The SOL two-pack, the best value at about £4.99, says most doors including uPVC, and the reviews do not confirm a uPVC fit. One buyer received brass instead of chrome. XFORT's title says wooden and uPVC doors, and a review found no uPVC instructions in the pack. The Yale V-WS6-CH is the top pick and the only chain here that prints TS 003. The title says PVCu and wooden doors. A bullet says wooden doors. One review fitted a composite because the website allowed it and the packet did not. Reviews say hollow doors need different screws. None of the twelve saved listings lists jack nuts. What the adjectives mean is on the door chain buying guide.

No-drill and jack-nut options

If you must not drill the face, Home Secure and DIY Doctor both describe a handle restrictor on the existing inside-handle screw. None of the twelve products here is that device. Buying FAST-FX because the bullet says uPVC does not give you a no-drill chain. The device choice is on door chain vs door restrictor. A jack nut or a screw into the steel is the other route, and it is not in these boxes. You only do that if you know where the steel is. The Master Locksmiths Association say you check the insurer and the door supplier before you drill. A spring button on KAFENDA, the MOXYOY chains or ZEQUNAFENG does not give the plates something solid to bite.

Composite doors

UK Composite Doors say a chain can be added, and they prefer a professional because a custom frame and the warranty are at risk. The core is often timber, so a screw can feel firm when it has only caught the skin. One FAST-FX review found the chain acceptable on a composite door and still warned about a uPVC frame. One Yale review fitted a composite from the web text while the packet disagreed. Ask the door company before you mark a hole. Do it yourself only when you already know where the reinforcement is and the warranty allows the hole. You still lift the handle and remove the key when you lock up, and you take the chain off when you are not answering.

Common questions

Will drilling void the warranty?
It can. UK Composite Doors say a custom frame and the warranty are at risk, which is why they prefer a professional. Home Secure say drilling may affect the guarantee. The listing will not tell you your warranty position. Ask the company that supplied the door, and check the insurer, before you make a hole you cannot undo.
What is a no-drill door chain?
On a uPVC door it usually means a restrictor that uses the existing screw of the inside handle, so the face of the door is not drilled. Home Secure sell that idea, and DIY Doctor describe the same handle restrictor. It is not one of the twelve screw-in chains in this comparison. A title that says uPVC is not a no-drill product.
Do any chains in this comparison include uPVC fixings?
No jack nuts or steel-reinforcement screws are listed in these saved listings. FAST-FX, SOL, XFORT, Yale WS6 and ZEQUNAFENG claim uPVC or PVCu in the title or the bullets. Yale's bullet still says wooden doors, and reviews say the WS6 screws are for solid wood. XFORT arrived without uPVC instructions in one review. The claim and the bag do not match.
Is a composite door the same as uPVC?
No. Composite doors often have a timber core, and uPVC doors are usually a plastic profile with steel somewhere inside. Both can lose their warranty if you drill without asking. A screw that feels firm in a composite skin can still be in the wrong layer. One Yale buyer fitted a composite from the online text while the packet disagreed. Treat them as two doors until the supplier says otherwise.
The Yale title says PVCu. Is that enough?
No. The V-WS6-CH title says PVCu and wooden doors, and a bullet says wooden doors. A review fitted a composite because the website allowed it and the packet did not, and another review says hollow doors need different screws. TS 003 in the title is a chain test, not a fixing for your profile. Read the bullet, then ask the door company.

Related pages

Sources

Public UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are the amazon.co.uk figures dated 19 October 2026. TS 003 is not treated as a burglary lock, and Secured by Design is quoted only for the live Yale WS6 table on that date.

  1. West Yorkshire Police: door and window advice (retrieved 19 October 2026)
  2. Avon and Somerset Police: door security (retrieved 19 October 2026)
  3. Age UK: doorstep scams (retrieved 19 October 2026)
  4. ERA: certified solutions and TS 003 (retrieved 19 October 2026)
  5. DHF publications, including TS 003:2012 (retrieved 19 October 2026)
  6. DIY Doctor: fitting a door chain (retrieved 19 October 2026)
  7. Master Locksmiths Association: door chain security (retrieved 19 October 2026)
  8. Yale WS6 on amazon.co.uk (retrieved 19 October 2026)