Home Improvement Costs in the UK (2026 Complete Guide)

Home Improvement Costs in the UK

Home improvement costs in the UK vary widely depending on the type of project, materials used, and labour involved.

Quick Answer

Home improvement costs in the UK vary widely depending on the type of project, materials used, and labour involved. Smaller upgrades like decorating may cost a few hundred pounds, while major renovations such as extensions or full kitchen replacements can cost tens of thousands.

Typical ranges include:

ProjectTypical Cost
Painting a room£200 – £600
New bathroom£4,000 – £10,000
New kitchen£6,000 – £20,000+
Double glazing£4,000 – £8,000
House rewiring£3,000 – £8,000
Loft conversion£20,000 – £50,000
House extension£25,000 – £80,000+
New roof£5,500 – £12,000

Costs depend heavily on property size, materials, and location.

Planning multiple costs? Use our budget calculator to estimate total monthly spend

Most Common Home Improvements

Homeowners typically invest in improvements for one of three reasons:

  • increasing property value
  • improving comfort and efficiency
  • repairing ageing parts of the home

Below are some of the most common upgrades and their typical UK costs.

Kitchen Renovation Costs

A new kitchen is one of the most popular home improvements in the UK.

Typical costs:

Kitchen TypeCost
Budget kitchen£6,000 – £10,000
Mid-range kitchen£10,000 – £20,000
High-end kitchen£20,000 – £40,000+

Costs usually include units, appliances, installation, and labour.

Bathroom Renovation Costs

A bathroom upgrade can significantly improve comfort and property value.

Typical costs:

Bathroom TypeCost
Basic bathroom£4,000 – £6,000
Mid-range bathroom£6,000 – £10,000
Luxury bathroom£10,000 – £15,000+

Double Glazing Costs

Replacing old windows with double glazing improves insulation and energy efficiency.

Typical installation costs:

Property TypeCost
Small house£4,000 – £5,500
Semi-detached£5,500 – £7,000
Large detached£7,000 – £10,000

Rewiring a House

Older homes may require electrical rewiring to meet modern safety standards.

Typical costs:

Property SizeCost
Small house£3,000 – £4,500
Semi-detached£4,500 – £6,500
Large house£6,500 – £9,000

Loft Conversion Costs

A loft conversion is one of the most effective ways to add space.

Typical costs:

Loft Conversion TypeCost
Velux conversion£20,000 – £30,000
Dormer conversion£30,000 – £45,000
Hip-to-gable conversion£40,000 – £55,000

House Extension Costs

House extensions can add significant value and living space.

Typical costs:

Extension TypeCost
Small extension£25,000 – £40,000
Medium extension£40,000 – £60,000
Large extension£60,000 – £80,000+

New Roof Costs

Replacing a roof is one of the largest home repair costs.

Typical prices:

Property TypeCost
Terraced house£5,500 – £7,500
Semi-detached£6,500 – £9,000
Detached£9,000 – £12,000+

What Affects Home Improvement Costs?

Several factors influence renovation costs:

Property size
Larger homes require more materials and labour.

Location
Labour costs are usually higher in London and the South East.

Materials used
Premium materials can significantly increase project costs.

Structural work required
Projects that involve plumbing, electrical work, or structural changes are more expensive.

Use our UK Budget Calculator to estimate your total monthly costs across housing, food, transport, and lifestyle.

Frequently Asked Questions

What is the most expensive home improvement?

Large structural projects such as extensions, loft conversions, and major renovations are usually the most expensive.

Which home improvements add the most value?

  • kitchen renovation
  • loft conversion
  • extension
  • energy efficiency improvements

How much should you budget for home improvements?

Many homeowners budget 1% to 3% of their property’s value per year for maintenance and improvements.

Related Guides

“See full Home Costs guide”

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