How Much Do Windows and Doors Cost in 2026?

A transparent breakdown of window and door replacement costs in the UK — covering materials, installation, and the factors that affect what you actually pay. ## Average Costs by Material (Supply and Fit) These prices reflect fully installed costs including VAT, removal of old frames, and making good. Based on a typical 3-bed semi-detached with 8–10 windows.

| Material | Per Window | Full House (8–10) | |---|---|---| | uPVC (A-rated) | £450–£700 | £4,000–£7,000 | | uPVC (premium brand) | £600–£900 | £5,500–£9,000 | | Aluminium | £800–£1,400 | £7,000–£14,000 | | Timber | £700–£1,200 | £6,000–£12,000 | | Composite | £900–£1,500 | £8,000–£15,000 | ## Door Costs | Type | Typical Cost (Installed) | |---|---| | uPVC front door | £800–£1,500 | | Composite front door | £1,200–£2,500 | | Aluminium front door | £2,000–£4,000 | | Bi-fold doors (3-panel) | £3,000–£5,500 | | Bi-fold doors (4-panel) | £4,500–£7,500 | | Sliding patio doors | £2,000–£4,500 | | French doors | £1,200–£2,500 | ## What Affects the Price?

**Size and quantity** — quantity can affect unit pricing, but no fixed saving should be assumed. Ask for a measured, itemised quotation and compare the same specification and inclusions. **Glazing specification** — triple glazing adds 15–25% over double. Specialist glass (acoustic, self-cleaning, solar control) adds further.

**Colour and finish** — white uPVC is cheapest. Woodgrain foils add 10–15%. Coloured aluminium is standard; RAL colour matching may add a premium. **Access** — scaffolding is typically £500–£1,500 for a full house. Upper-floor replacements on difficult elevations cost more. **Structural alterations** — enlarging openings, adding lintels, or converting windows to doors requires Building Regulations approval and structural work.

**Making good** — internal plastering, external rendering, and decoration after installation. Some quotes exclude this. ## What Should Be Included in a Quote? A comprehensive quote should include: - Supply and installation of frames and glass - Removal and disposal of old frames - All hardware (handles, locks, hinges) - Internal and external sealing - Background ventilation provision appropriate to the existing ventilation and applicable compliance route - FENSA/CERTASS registration - Guarantee terms (typically 10 years on frames, 5 on glass units) ## How EvoHome Helps As an independent coordination consultancy, EvoHome can help organise the specification and, where appropriate, arrange suitable independent installers and additional quotations.

Price and outcome depend on the actual property, agreed scope and installer quotation. --- ### What to do next If you are planning windows, EvoHome Improvements can help you organise the details, compare options and, where appropriate, connect the project with suitable independent installers or specialists. EvoHome does not carry out the works directly.

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