United Kingdom calculator
Roof Replacement Cost Calculator
Estimate the cost to replace your roof in the UK. Adjust the roof size (m²), pitch, material grade, and whether the old roof is removed to see an itemised low–high range.
How this calculator is built
Unit costs with sources
This model cites 4 sources for its line-item cost and regional labour inputs.
Regional labour adjustment
The region table applies local labour indexes only to labour-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labour model, and source links.
How this estimate is calculated
The model prices 6 project line items from published cost inputs. Quantities are driven by your roof size, pitch, stories, and material grade. The selected scope and finish adjust those inputs, then the regional index changes only each line's labour share; material prices remain national.
The itemised midpoint is shown as a ±15% planning range. It is not a contractor quote: access, design choices, permits, availability, and site conditions can move the final price.
VAT
The calculator applies the configured standard UK VAT rate of 20% to its renovation estimate and shows the VAT-inclusive total. Some projects or properties can qualify for different treatment, so confirm the rate and any exemptions on each contractor quote.
How firm these costs are
The national renovation model is assembled from the public cost guides cited for its individual inputs, then calibrated against a cited market range. Individual line prices are planning allocations rather than live quotes; compare the result with itemised quotes from qualified contractors before budgeting.
Estimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
Roof Replacement Cost by region: typical ranges
Each range applies that region's labour index to the labour-share line items of the default project; materials stay at national prices. Select a region for its full local breakdown and calculator.
| Region | Typical range | Labour index | Permit |
|---|---|---|---|
| East Midlands | £7,358–£9,955 | 95% | Likely |
| East of England | £7,358–£9,955 | 95% | Likely |
| London | £8,086–£10,940 | 112% | Likely |
| North East | £7,358–£9,955 | 95% | Likely |
| North West | £7,401–£10,013 | 96% | Likely |
| Scotland | £7,572–£10,245 | 100% | Likely |
| South East | £7,744–£10,477 | 104% | Likely |
| South West | £8,044–£10,882 | 111% | Likely |
| Wales | £7,487–£10,129 | 98% | Likely |
| West Midlands | £7,358–£9,955 | 95% | Likely |
| Yorkshire and the Humber | £7,316–£9,897 | 94% | Likely |
Common questions
How much does it cost to replace a roof in the UK?
Checkatrade puts the UK national average around £7,000 (before VAT) for a typical 64 m² gable roof, at £110–£260/m² depending on pitch, material, and region. Those trade figures exclude VAT, so our estimate adds the standard 20% on top — making the headline total VAT-inclusive (about £8,900 for that average roof), which is what you actually pay. A standard semi-detached with concrete tiles falls toward the lower end; premium slate or steep hip roofs toward the upper.
Does the estimate include removing the old roof?
Yes — toggle 'Remove old roof' to include tear-off and disposal. Checkatrade puts old-roof removal at £1,000–£2,500 for a typical gable, which works out to roughly £15–£39/m².