Home Improvement Costs in Cardiff 2026

Regional model0.91× baseline

Price basis2026 UK benchmarks

These figures are modelled planning ranges, not observed city-wide averages or contractor quotes. National benchmark ranges are adjusted by the UK Home Costs regional factor and rounded for budgeting.

Typical planning ranges in Cardiff

House extension£1,650–£2,750 / m²

Kitchen renovation£4,800–£25,850

Bathroom renovation£5,000–£12,750

Roof replacement£3,650–£16,400

House rewire£3,650–£10,900

Boiler replacement£2,300–£5,000

Solar panels£4,550–£8,200

Builder day rate£160–£320 / day

How to use these figures

For grants and energy schemes, verify the current Wales-specific eligibility rules before relying on any support assumption.

Start with the table to understand project scale, then use a calculator to add floor area, condition, finish level and other project-specific inputs. A postcode-aware calculator can infer the same broad region while still allowing a manual override.

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