Building works planner

Pick the trades, enter the measurements, and see exactly what to buy, the labour and the total, including VAT and a contingency. For owners budgeting a project and tradespeople pricing a job. Calculations run as you type.

Job name

Only you see this. Don't include anyone else's personal details.

Roofing: re-roof a pitched roof

For roofers and anyone pricing this job

Label (optional)

House length (along the ridge) (m)

House depth (front to back) (m)

Roof pitch (degrees)

Most UK houses are 30 to 45 degrees.

Eaves overhang each side (m)

Tiles per m²

Concrete interlocking ≈ 10, slate ≈ 20, plain clay ≈ 60. Check the product sheet.

Price per tile (£)

Breathable membrane and battens (£ per m²)

Roofer labour (£ per m²)

Your price, or from quotes.

Scaffolding (hire, up and down) (£)

Skip and waste removal (£)

What you'll need

Roof tiles (incl. 5% waste and cuts): 728 tiles
Membrane and battens: 69.29 m²
Roofing labour: 69.29 m²

Section total: £1,289.35

Add another trade

Totals

Contingency (%)

10 to 15% covers surprises; more for old houses.

Markup (%)

For tradespeople quoting a customer. Leave 0 if you're the owner.

VAT

VAT rate (%)

Usually 20%. Some energy-saving work is 0%.

Materials: £1,289.35
Labour: £0.00
Other (hire, certificates, fitted items): £0.00
Contingency: £128.94
Markup: £0.00
VAT: £283.66
Total: £1,701.95

Calculating is free. Create an account and choose a plan to save, download and print estimates.

Get quotes from local trades

Send this measured job to up to 3 local trades. Free. They see the job and your postcode district, never your address.

Create a free account to send this job to up to 3 local trades for quotes.

Quantities use typical coverage figures (every one can be changed) and the prices you enter. Always check measurements on site and get written quotes. Planning permission, building regulations or party wall rules may apply. Not professional advice.