Composite doors cost fitted typically range from £1,200 to £2,500 for a standard single door, including installation and VAT, according to the Energy Saving Trust (Energy Saving Trust, 2026). This figure covers the door, frame, hardware, and professional fitting, but excludes any structural modifications.
- Standard composite doors cost £1,200–£1,800 fitted including installation and VAT.
- Larger doors or decorative glazing can push costs above £2,500 fitted.
- Structural modifications add £400–£1,000 to the total fitted price.
The final price depends heavily on your door size, style, glazing, and the installer’s labour rates. A basic 900mm x 2100mm composite door in a standard opening costs around £1,200–£1,500 fitted. Larger sizes, French doors, or doors with decorative glass panels can push costs above £2,500. These prices apply to new-build or replacement installations where the opening is ready. If you need brickwork alterations, lintel work, or new internal plastering, expect additional costs of £400–£1,000.
Standard composite door cost breakdown
A standard 900mm x 2100mm composite door fitted costs between £1,200 and £1,800, including the door slab, frame, hinges, lock, and installation. The door slab itself typically costs £500–£800, with the frame and hardware adding £200–£400. Fitting labour runs £300–£500, depending on your region and the complexity of the job. Multi-point locking systems are standard and add security without extra cost. VAT at 20% is included in these figures (GOV.UK, 2026). If you choose a composite door with a cat flap, letterbox, or coloured internal finish, add £100–£300.
Factors that increase the fitted price
Larger doors, such as 1200mm wide or 2400mm tall, cost £1,800–£2,500 fitted. French doors (two doors side-by-side) cost £2,200–£3,500 fitted. Doors with decorative or leaded glass panels add £200–£600. If your existing door frame is damaged or out of square, the installer may charge an extra £100–£250 for frame adjustment. Regional labour rates vary: installers in London and the South East typically charge 15–25% more than those in the North or Scotland (ONS, 2026). Always request a fixed-price written quote before work begins.
Grants and financial help for composite doors
No specific government grant covers composite doors for energy efficiency alone. However, if you receive certain benefits, you may qualify for the Energy Company Obligation (ECO4) scheme, which can fund energy-saving home improvements. ECO4 covers cavity wall insulation, loft insulation, and heating upgrades, but composite doors are rarely included unless part of a whole-house retrofit. The Great British Insulation Scheme also excludes doors (Ofgem, 2026). For most homeowners, paying for a composite door is an upfront cost. You can reduce this by comparing quotes from at least three TrustMark-registered installers (TrustMark, 2026).
A worked example
A 1930s semi-detached house in Manchester replacing a standard 900mm x 2100mm front door with a mid-range composite door fitted costs £1,650 after the 0% VAT saving (which runs until March 2027). The homeowner chooses a door with a decorative glazed panel and a multi-point locking system, with no structural modifications required as the existing opening is sound. Based on Energy Saving Trust figures, the new door reduces heat loss by approximately 15%, saving roughly £90 per year on heating bills compared to the old timber door with a draughty letterbox. Over a 25-year lifespan, the total savings amount to £2,250, meaning the door pays for itself within 18 years and delivers a net saving of £600 over its lifetime.
| Item | Figure |
|---|---|
| Upfront cost after grants | £1,650 |
| Yearly savings | £90 |
| Payback period | 18 years |
| 25-year lifetime savings | £600 |
What homeowners often get wrong
The most common mistake is assuming the cheapest quote is the best value, which can lead to poor installation and hidden costs later. Here are three errors homeowners frequently make when pricing composite doors fitted
- Ignoring the frame and hardware quality A cheap door slab with a low-cost frame can warp or fail within five years, costing £400–£800 to replace. The right answer is to ensure the package includes a reinforced frame and a multi-point locking system from a recognised brand like Yale or Era.
- Not checking for structural work Many homeowners budget only for the door and fitting, then discover their opening needs a new lintel or brickwork repairs costing £400–£1,000 extra. The right answer is to ask the installer for a full survey before agreeing a price to avoid unexpected add-ons.
- Overlooking the 0% VAT saving Some quotes still include the full 20% VAT because the installer does not apply the temporary zero rate for energy-saving materials. The right answer is to confirm the quote explicitly states 0% VAT on the invoice, or you could pay up to £330 more on a £1,650 door.
Quick reference
- A standard 900mm x 2100mm composite door fitted costs between £1,200 and £1,800 including installation and 0% VAT until March 2027.
- Decorative glazing or larger sizes can push the fitted price above £2,500 for a single door.
- Structural modifications such as lintel work or brickwork alterations add £400 to £1,000 to the total cost.
- The average payback period from energy savings alone is 15 to 20 years, based on Energy Saving Trust estimates.
- Always obtain at least three quotes from MCS-certified installers to compare prices and avoid overpaying by up to 30%.
Frequently Asked Questions
A standard composite door costs £1,200–£2,500 fitted including installation and VAT, according to the Energy Saving Trust (2026). The exact price depends on size, style, and your installer's labour rates.
The fitted price covers the door slab, frame, hinges, multi-point lock, and professional installation, plus VAT at 20% (GOV.UK, 2026). Extras like cat flaps or coloured finishes add £100–£300.
No, replacing an existing door with a composite door does not usually need planning permission, according to GOV.UK. However, if you alter the opening size or the property is listed, check with your local council first.
