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Home Improvement Cost Guides

Realistic 2025 prices for the most common home improvement jobs in the UK — so you know what to expect before you get quotes.

Electrical

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Cost of Rewiring a House in the UK (2025)

£3,000–£12,000

Rewiring a house is a significant investment but often unavoidable in older properties. Costs range from £3,000 for a small flat to over £12,000 for a large detached house.

Heating

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Cost of a New Boiler in the UK (2025)

£2,000–£4,500

A new boiler costs £2,000–£4,500 fully installed. The price depends on boiler type, brand, property size, and whether pipework changes are needed.

Bathroom

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Cost of a Bathroom Refit in the UK (2025)

£4,000–£12,000

A full bathroom refit costs £4,000–£12,000 depending on size, fixtures, and specification. Labour alone typically runs £1,500–£4,000.

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Cost of Fitting a Bathroom in the UK (2025)

£1,500–£4,000 labour

Fitting a bathroom costs £1,500–£4,000 for labour. A full supply and fit costs £4,000–£12,000 depending on the standard of fixtures chosen.

Extensions

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Cost of a Loft Conversion in the UK (2025)

£25,000–£80,000

Loft conversion costs range from £25,000 for a basic Velux conversion to £80,000+ for a full mansard. The type of conversion and your property are the biggest factors.

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Cost of a House Extension in the UK (2025)

£35,000–£130,000

House extensions cost £35,000–£130,000+ depending on size, type, and specification. Single-storey rear extensions are the most common and cost £35,000–£75,000.

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Cost of a Kitchen Extension in the UK (2025)

£35,000–£85,000

A kitchen extension costs £35,000–£85,000 depending on size and specification. Adding bifold doors, skylights, and an open-plan layout are the most popular choices.

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Cost of a Garage Conversion in the UK (2025)

£15,000–£30,000

A garage conversion costs £15,000–£30,000. It is one of the best-value ways to add living space — no foundations needed and usually no planning permission required.

Plastering

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Cost of Plastering a Room in the UK (2025)

£300–£900 per room

Plastering a single room costs £300–£900 depending on whether it is a skim coat or full replaster. Whole-house replastering runs £4,000–£12,000.

Roofing

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Cost of a New Roof in the UK (2025)

£5,000–£15,000

A full re-roof costs £5,000–£15,000 for most homes. The biggest factors are property size, roof pitch, and the materials chosen.

Landscaping

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Cost of a Garden Patio in the UK (2025)

£1,500–£6,000

A garden patio costs £1,500–£6,000 depending on size and materials. Porcelain and natural stone cost more but last significantly longer than concrete slabs.

Kitchen

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Cost of Fitting a Kitchen in the UK (2025)

£1,500–£3,500 labour

Kitchen fitting costs £1,500–£3,500 for labour only. A full supply and fit kitchen ranges from £8,000 for budget to £25,000+ for high-spec.

Damp Proofing

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Cost of Damp Proofing in the UK (2025)

£500–£20,000

Damp proofing costs vary widely: chemical DPC injection costs £70–£300 per metre. Full basement waterproofing runs £5,000–£20,000. Always get an independent survey first.

Decorating

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Cost of Painting & Decorating in the UK (2025)

£200–£5,000

Painting a room costs £200–£500. A full 3-bed house interior costs £2,000–£5,000. Exterior painting a semi runs £800–£2,500.

Fencing

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Cost of Garden Fencing in the UK (2025)

£1,200–£2,500 for average garden

Garden fencing costs £80–£160 per panel installed. A typical garden fence replacement (15m) costs £1,200–£2,500 including posts, panels, and labour.

Tiling

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Cost of Tiling a Bathroom in the UK (2025)

£600–£3,000 total

Tiling a standard bathroom (walls and floor) costs £600–£1,500 for labour. Material costs add £300–£1,500+ depending on tile choice.

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