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
Cost of Rewiring a House in the UK (2025)
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.
House Wiring Cost in the UK (2025)
First-fix wiring for a new extension or build costs £800–£3,000+. Adding extra circuits to an existing property costs £200–£800 per circuit.
Heating
Cost of a New Boiler in the UK (2025)
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.
Cost of Gas Work in the UK (2025)
Gas engineer costs range from £60–£120 for a safety certificate to £500+ for new pipework or appliance installation. All gas work must be carried out by a Gas Safe registered engineer.
Cost of Central Heating Installation in the UK (2025)
A full central heating system installation costs £3,500–£7,000. Adding a single radiator to an existing system costs £150–£400. Power flushes run £300–£600.
Cost of Boiler Installation in the UK (2025)
Boiler installation costs £500–£1,200 in labour. The total cost (boiler + installation) typically ranges from £1,800 to £4,500 depending on boiler brand and type.
Bathroom
Cost of a Bathroom Refit in the UK (2025)
A full bathroom refit costs £4,000–£12,000 depending on size, fixtures, and specification. Labour alone typically runs £1,500–£4,000.
Cost of Fitting a Bathroom in the UK (2025)
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
Cost of a Loft Conversion in the UK (2025)
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.
Cost of a House Extension in the UK (2025)
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.
Cost of a Kitchen Extension in the UK (2025)
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.
Cost of a Garage Conversion in the UK (2025)
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
Cost of Plastering a Room in the UK (2025)
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.
Cost of Plastering a Ceiling in the UK (2025)
Plastering a ceiling costs £150–£600 depending on room size and condition. A standard bedroom ceiling re-skim costs £200–£350.
Roofing
Cost of a New Roof in the UK (2025)
A full re-roof costs £5,000–£15,000 for most homes. The biggest factors are property size, roof pitch, and the materials chosen.
Cost of a Flat Roof in the UK (2025)
A flat roof costs £40–£120 per m². A typical garage or extension flat roof (20–25m²) costs £1,500–£4,000 depending on material.
Cost of Roof Tile Repair in the UK (2025)
Replacing a few broken roof tiles costs £150–£400. Re-bedding ridge tiles costs £300–£800. A full roof repoint costs £1,500–£3,500.
Plumbing
Cost of Plumbing Work in the UK (2025)
Plumbing costs vary hugely depending on the job. A simple tap washer replacement costs under £100, while full replumbing of a house can reach £10,000+.
Cost to Fix a Leak in the UK (2025)
Fixing a simple leak costs £80–£300. More complex leaks behind walls or in roofs can cost £500–£3,000+ depending on access and damage.
Cost of Replacing a Tap in the UK (2025)
Replacing a tap costs £80–£200 in labour. A mixer tap replacement typically takes 1–2 hours and costs £100–£200 all-in if you supply the tap.
Carpentry & Joinery
Cost of Carpentry & Joinery Work in the UK (2025)
Carpenters handle everything from fitting a door to building bespoke fitted furniture. Day rates run £200–£350, with larger bespoke projects costing several thousand pounds.
Cost of Fitting a Door in the UK (2025)
Fitting an interior door costs £80–£200 in labour. Fitting an external door (supply and fit) costs £400–£1,500 depending on door type.
Cost of Fitting a Banister in the UK (2025)
Fitting a new banister costs £300–£1,500 depending on material and design. Simple handrail replacement starts from £150 in labour.
Security & Climate
Cost of CCTV & Air Conditioning Installation in the UK (2025)
A basic 4-camera home CCTV system costs £500–£1,500 installed. A single split air conditioning unit runs £800–£1,500 fitted, with multi-room systems reaching £5,000+.
Cost of Home Security System Installation in the UK (2025)
A professionally installed burglar alarm costs £400–£1,200. A 4-camera CCTV system runs £500–£1,500 installed. NSI/SSAIB-approved systems attract insurance discounts.
Cost of a Locksmith in the UK (2025)
A locksmith call-out costs £60–£150 during the day and up to £200 out-of-hours. A lock change runs £80–£200 including parts. Always agree the price before work starts.
Gardens & Outdoors
Cost of Tree Surgery in the UK (2025)
Tree surgery costs depend heavily on tree size and work required. Crown reduction starts from £200, while removing a large tree can cost £1,500–£3,000 or more.
Cost of Garden Landscaping in the UK (2025)
Garden landscaping costs range from £500 for a basic tidy-up to £20,000+ for a full design and build. Most mid-range garden makeovers fall in the £3,000–£8,000 range.
Cost of a New Driveway in the UK (2025)
A new driveway costs £1,500–£8,000+ depending on material and size. Tarmac is the most affordable; resin bound is mid-range; block paving and natural stone are premium.
Cost of Building a Shed in the UK (2025)
A standard garden shed costs £300–£3,000+ depending on size and material. A bespoke timber shed built by a carpenter starts from £1,500.
Flooring
Cost of New Flooring in the UK (2025)
Flooring costs vary widely by material. Carpet fitting starts at £5/m², while solid hardwood can cost £80–£120/m² installed. A typical room costs £400–£1,500 fitted.
Cost of Carpet Fitting in the UK (2025)
Carpet fitting labour costs £3–£6 per m². A standard 3-bedroom house (supply and fit) costs £1,500–£4,000 depending on carpet quality.
Cost of Hardwood Flooring in the UK (2025)
Hardwood flooring costs £40–£120 per m² supply and fit. Engineered oak is the most popular choice at £50–£90 per m².
Building & Construction
Cost of Bricklaying in the UK (2025)
Bricklaying costs £300–£700 per 1,000 bricks laid. A garden wall costs £800–£3,000, and a brick extension from £30,000+. Day rates run £200–£400.
Cost of Scaffolding in the UK (2025)
A standard domestic scaffold for a 3-bed house costs £600–£1,200 for a 2-week hire. Chimney and small scaffolds start from £300.
Cleaning Services
Cost of Window Cleaning in the UK (2025)
Domestic window cleaning costs £5–£25 per visit for a standard house. Many window cleaners offer regular fortnightly or monthly contracts at a discounted rate.
Cost of Cleaning Services in the UK (2025)
Regular domestic cleaners charge £12–£20/hr. End-of-tenancy cleans are typically fixed-price: £150–£500 depending on property size.
Windows & Doors
Cost of New Windows & Doors in the UK (2025)
A uPVC casement window costs £400–£700 supply and fit. A full house of windows ranges from £4,000–£12,000. A composite front door costs £800–£2,000 installed.
Cost of uPVC Windows in the UK (2025)
A uPVC casement window costs £300–£700 fitted. A full house (10 windows) typically costs £3,000–£7,000 supply and fit.
Interior & Specialist
Cost of a Media Wall in the UK (2025)
A custom media wall costs £1,500–£6,000 depending on size and specification. Adding an electric fireplace, built-in storage, or bespoke joinery pushes costs higher.
Cost of Solar Panels in the UK (2025)
A typical 4kWp home solar system costs £6,000–£9,000. Adding battery storage costs a further £2,500–£5,000. Payback periods have shortened to 7–12 years.
Building & Renovation
Cost of a Single Storey Extension (2025)
A single storey extension costs £1,500–£2,500 per m². A typical 20m² kitchen extension costs £30,000–£50,000 fully finished.
Rendering Cost Per m² in the UK (2025)
Rendering costs £25–£60 per m² depending on render type. A typical 3-bed semi costs £2,500–£6,000 to fully render externally.
Damp & Waterproofing
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