The short answer
A composite door supply-only in the UK typically costs between £700 and £2,000, with a standard front door in a common colour usually around £800 to £1,300 for the slab and frame. Supply-only means you receive the made-to-measure door set but arrange fitting yourself, so the price excludes labour, removal of the old door and sealing. The figure rises with size, glazing, colour and hardware, and falls for a plain standard-size door. Buying supply-only saves the installer's fitting margin, but you take on responsibility for accurate measurements, correct fitting and meeting building regulations for the glazing.
Supply-only buys you the door and frame at a lower outlay, but the saving comes with the responsibility for measuring, fitting and compliance.
Quick reference
- Standard slab + frame£800–£1,300
- Glazed / coloured£1,000–£1,700
- Large / double / side panel£1,500–£2,500+
- ExcludesLabour, removal, sealing
Typical supply-only ranges
Supply-only pricing covers the made-to-measure composite door and its frame, delivered ready to install. The table shows indicative 2026 UK ranges; the actual figure depends on the manufacturer, the specification and whether you buy direct or through a merchant.
A plain, standard-size door in a popular colour sits at the lower end. Adding decorative or double glazing, a bespoke colour, dual-colour finish, or upgraded hardware moves the price up. Larger openings, double doors and configurations with side panels need more material and a bigger frame, which is why they top the range.
| Specification | Typical supply-only cost | Notes |
|---|---|---|
| Standard front door + frame | £800–£1,300 | Common colour, minimal glazing |
| Glazed / coloured | £1,000–£1,700 | Decorative glass, bespoke shade |
| Large or double door | £1,500–£2,500+ | More material, bigger frame |
| With side panel | £1,400–£2,500+ | Wider frame and extra glazing |
Indicative UK supply-only figures for guidance. Sources: Checkatrade and MyJobQuote composite door cost guides.
What supply-only does and does not include
Supply-only normally includes the door slab, the outer frame, the locking mechanism and the standard hardware specified at order. It does not include:
- Fitting labour — you arrange a tradesperson or fit it yourself.
- Removal and disposal of the old door and frame.
- Sealing, trims and making good around the new frame.
- Building control or self-certification for the glazing.
Because the door is made to measure, an incorrect size usually cannot be returned or remade free of charge, so the survey and measurements are critical. Many suppliers offer an optional measuring service or detailed guidance; using it reduces the risk of an expensive mistake on a non-returnable product.
The responsibilities you take on
Choosing supply-only shifts several obligations onto you. Measuring has to be precise, allowing for the frame, fitting tolerances and the threshold. Fitting an external door correctly matters for weather sealing, security and the door operating smoothly, and a poorly fitted composite door can let in draughts or fail to lock properly. You also become responsible for compliance: replacement external doors must meet thermal and safety glazing standards, and without a registered installer self-certifying through a competent person scheme, you may need to notify building control yourself.
When supply-only makes sense
Supply-only suits homeowners who already have a competent fitter, builder or joiner on site, or who are confident DIYers comfortable with measuring and hanging an external door. If you are mid-renovation and a tradesperson is handling other work, slotting the door into their schedule can be efficient and cost-effective. It can also suit those replacing a door in an outbuilding or secondary opening where the stakes are lower.
For a main front door, weigh the saving against the risks. The fitting margin you save is often a few hundred pounds, while a measuring error or a poor fit can cost far more to put right, and you lose the single point of accountability that a fitted quote provides. If you do go supply-only, confirm the supplier's measuring guidance, lead time, delivery arrangements and warranty terms before ordering, and make sure your fitter is lined up so the door is not left exposed or stored badly while you wait. Keep all paperwork for the glazing specification, as you may need it to demonstrate compliance later if you sell the property. A clear order specification and an experienced fitter together make supply-only a sound route; without both, a fully fitted quote is usually the safer choice.
Frequently asked questions
How much do I save buying supply-only?
You save the installer's fitting labour, typically a few hundred pounds for a like-for-like door, plus any margin they add on the door itself. Against that, you take on measuring, fitting and compliance, so the net saving depends on what fitting then costs you separately.
Can I fit a composite door myself?
It is possible if you are competent with external joinery, but accurate measuring, secure fixing, weather sealing and correct locking all matter. A poorly fitted external door can leak, fail to lock or void the warranty, so many homeowners prefer a professional fit.
Will a supply-only door be made to measure?
Usually yes. Most composite doors are manufactured to your specified opening size, which is why correct measurements are essential. A made-to-measure door ordered to the wrong size is generally not returnable.
Sources & further reading
- Checkatrade — door installation cost guide
- MyJobQuote — composite door fitting cost
- FENSA — replacement window and door rules
Figures on this page are typical UK ranges drawn from published sources and depend on your specific door and opening. They are guidance, not a quotation.