Building & Home Improvements · UK Guide 2026
New Roof Costs UK: Budget and Quote Guide
JASOTO · Updated October 3, 2026 · 435 words
AI-generated illustration; it does not show a customer project or a tested product.
A roof replacement can involve coverings, underlay, battens, ventilation and repairs to the structure. Ask for a survey and a clear specification before comparing totals.
Key checks for new roof
- Confirm covering material and roof area.
- Include scaffold, waste and weather protection.
- Identify insulation, guttering and structural repairs separately.
What affects the cost of a new roof?
Roof size, shape, materials, access and the condition of the existing roof can all make a significant difference to the total project cost.
Roof size and design
Larger and more complex roofs generally require more materials and labour. Valleys, dormers and unusual roof shapes can also increase the amount of work involved.
Roofing materials
Different roofing materials have different purchase and installation costs. The choice of tiles, slate and other materials can therefore have a major impact on the budget.
Scaffolding
Many roof replacement projects require scaffolding. Ask whether scaffolding is included when comparing quotations.
Removing the existing roof
Removing old tiles and other roofing materials takes time and can create disposal costs that need to be included in the overall project.
Structural repairs
If damaged timber or other structural problems are discovered once the old roof is removed, additional repairs may be required.
Compare roofing companies
For a major roof replacement, obtaining several quotations can help you compare the proposed work, materials and overall price.
An illustrative quote comparison
One estimate replaces coverings; another includes underlay, battens, ventilation and structural repairs.
Compare the surveyed roof specification. Include scaffold, weather protection, waste and any separate gutter or insulation work.
Build your new roof budget
Use the same scope for each quotation. Enter tax-inclusive figures consistently, and include separately priced work only once.
The calculator below uses the figures you enter from a quotation. It does not estimate market prices. Confirm what the quoted amount includes, whether VAT applies and which costs remain provisional.
- Confirm covering material and roof area.
- Include scaffold, waste and weather protection.
- Identify insulation, guttering and structural repairs separately.
Calculate your quoted budget
Use the same scope for each quotation. Enter tax-inclusive figures consistently, and include separately priced work only once.
Enter figures from your quote. Use amounts including VAT consistently. Leave extras blank if none apply. These fields stay in your browser.
Calculated total
Enter valid quoted figures
This is arithmetic using your figures, not a market estimate. Include separately charged work once and check provisional costs with the provider.
Before you book or buy
- Confirm covering material and roof area.
- Include scaffold, waste and weather protection.
- Identify insulation, guttering and structural repairs separately.
Frequently asked questions
What should I confirm before budgeting for new roof?
A roof replacement can involve coverings, underlay, battens, ventilation and repairs to the structure. Ask for a survey and a clear specification before comparing totals. Confirm covering material and roof area.
Does the calculator show a typical UK price?
No. It adds up your quoted figures for the quantity you choose. Published provider examples, where supplied, are identified separately and are not a national average.
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