Roofing Cost Calculator
Work out what a new roof, re-tile or repair will cost you. Pick your roof type, material and property size for an instant breakdown of materials, labour and scaffolding.
Loading calculator...
Get price updates and money-saving tips
Join our free newsletter — roofing pricing updates, cost-saving tips, and the best deals. No spam, unsubscribe any time. Privacy policy.
How this calculator works
Our roofing calculator estimates the total cost of a new roof or roof repair based on your property type, roof type (pitched or flat), material choice, and the scope of work. Whether you need a full replacement, a re-tile, or a repair, the tool breaks down materials, labour, and scaffolding costs separately so you can see where the money goes.
For pitched roofs, you choose from concrete tiles, clay tiles, natural slate, or synthetic slate. For flat roofs, the options include felt, EPDM rubber, and fibreglass GRP. The tool calculates the approximate roof area based on your property type and adjusts pricing for your UK region, as labour rates for roofers vary significantly between London and the rest of the country.
Roofing costs can vary depending on the condition of the existing timber structure, access difficulties, and the height of the building. These estimates are designed for budgeting and should be reasonably close to what a reputable roofer would quote, but always get at least three written quotes from established roofing contractors before going ahead.
Frequently asked questions
How much does a new roof cost in the UK?
A full roof replacement on a typical semi-detached house costs between £4,000 and £7,000 depending on the material. Concrete tiles are the cheapest option at £55-£85 per square metre, while natural slate runs £80-£130 per square metre. Add £500-£1,200 for scaffolding on top of that.
How long does it take to replace a roof?
A straightforward re-roof on a semi-detached house usually takes 4 to 7 working days. Smaller terraced houses can be done in 3 to 5 days. Larger detached properties may take 7 to 12 days. Weather delays can add to this, which is why many homeowners book roofing work for drier months.
Do I need scaffolding for a new roof?
Almost always, yes. Health and safety regulations mean scaffolding is required for most roofing work above ground level. The cost is typically £500-£1,200 depending on the size of your house. Some single-storey bungalow repairs may be done from ladders, but full replacements will need proper scaffolding.
What is the cheapest roofing material in the UK?
For pitched roofs, concrete tiles are the most affordable at £55-£85 per square metre fully installed. For flat roofs, traditional felt is cheapest at £40-£65 per square metre, though it has a shorter lifespan than EPDM rubber or fibreglass GRP. It is worth considering longevity alongside upfront cost when choosing materials.
Should I repair my roof or replace it?
If the damage is localised, such as a few cracked tiles or a leaking valley, a repair costing £150-£500 is usually the sensible option. If your roof is over 40 years old, has widespread issues, or you are already seeing damp patches inside, a full replacement is likely better value in the long run. A good roofer will give you an honest assessment.