Composite vs uPVC front doors: what's the difference?

What they're actually made of

A uPVC door is a plastic frame around an insulated panel or glazing. A composite door has a solid timber or foam core wrapped in a GRP (fibreglass) skin, which is thicker, heavier and far more rigid.

You can feel the difference the moment you swing one — a composite door has weight to it.

Security

Composite wins on brute-force resistance because the slab itself is much harder to breach. But in reality most break-ins target the cylinder, not the door. Fitting an ABS or equivalent anti-snap, anti-pick, anti-drill cylinder matters more than the door material — and we fit those as standard.

Insulation and draughts

Composite doors generally insulate better thanks to the solid insulated core, and they don't flex or warp in strong sun the way a thin uPVC panel can. Both are a massive improvement on an old timber door.

Looks

Composite offers realistic woodgrain textures and a much wider colour and glazing range, which is why most people upgrading a front door choose it. uPVC is simpler and cleaner and works well on back doors and utility entrances.

Cost

Fitted, a uPVC door typically runs £700–£1,100 and a composite £1,000–£1,800 depending on glazing, colour and hardware. Back doors are usually at the lower end, feature front doors with side panels at the top.

Which we'd fit

Composite on the front, uPVC on the back, unless the back door is highly visible or exposed. Whichever you choose, insist on an anti-snap cylinder and a properly adjusted multi-point lock — that's what actually keeps the door secure.

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