Cost is the question we get asked more than any other, and we completely understand why. A new roof is one of the largest single home improvement expenditures most people will ever face, and getting a realistic sense of what to expect before you start collecting quotes makes the whole process far less daunting. These figures are based on jobs we’ve completed and the market reality we see day to day, so while every project is different, this should give you a solid starting point.
What Drives the Cost of a New Roof?
Before getting into numbers, it’s worth understanding the variables that move the price up or down. Roof size is the obvious one: larger roof, more materials, more labour. But complexity matters just as much. A simple gable roof with two straight planes is quicker to work on than a hipped roof with multiple intersecting angles, valleys, and dormers. Every additional feature adds both time and material cost.
The material you choose has a significant impact. There’s a meaningful price difference between standard concrete interlocking tiles at the cheaper end, through to hand-made clay tiles and natural Welsh slate at the premium end. On a typical three-bedroom semi, that material choice alone could account for £2,000–£4,000 of the total cost.
Your location matters too. Labour costs in London and the South East run higher than in the Midlands or the North, though material costs are broadly similar nationally. Access also plays a role: a scaffold-simple detached bungalow will be cheaper to erect scaffold around than a tall, semi-detached Victorian terrace in a terrace row.
Typical Price Ranges by Property Type
These are approximate guide prices for a full re-roof in 2026, inclusive of scaffold, materials, and labour, but exclusive of VAT:
A two-bedroom terraced house with a straightforward pitched roof: typically £4,000–£7,500 using concrete tiles, or £7,000–£12,000 using natural slate.
A three-bedroom semi-detached is the most common type we work on: typically £5,500–£9,500 for concrete or plain tile, £9,000–£15,000 for natural slate.
A four-bedroom detached with a more complex roof structure: £8,000–£14,000 for tile, potentially £15,000–£22,000 or more for natural slate.
Flat roof replacements on extensions and garages vary enormously by size, but a standard 30m² garage roof in EPDM rubber typically costs £1,800–£3,200. GRP fibreglass systems tend to sit slightly higher.
These are honest guide figures, not “from” prices designed to get us through the door. The final cost for your specific property will depend on a survey, but these ranges should give you a realistic anchor point when collecting quotes.
The Hidden Costs to Be Aware Of
Experienced roofers will flag these upfront; less scrupulous ones may not. When old tiles are stripped, the structural timbers underneath are exposed and inspected for the first time, sometimes in years. Rotten fascia boards, degraded roof battens, damaged rafters are all discovered at this stage, and all incur additional cost to remediate.
Waste disposal is another one. Some quotes include skip hire or grab lorry costs, others add them later. Always clarify this at the quote stage. Similarly, if your property has a chimney, flashing replacement is usually priced separately from the main roof unless explicitly included.
One cost many homeowners overlook entirely is the certificate of completion or building regulations sign-off, which may be required depending on the scope of work. Not every job requires this, but it’s worth asking.
Getting the Best Value
Getting three quotes is the standard advice, and it’s good advice but getting three comparable quotes is better. Make sure each contractor is quoting for the same materials, the same scope of work, and that scaffold, waste disposal, and VAT are addressed consistently across all three.
The cheapest quote isn’t necessarily bad value, and the most expensive isn’t necessarily the best. What you’re looking for is a contractor who can explain their pricing clearly, has a verifiable track record, and carries the relevant insurance and trade body memberships.
At Will Fix It Home Improvements, every quote we provide is itemised and transparent, no vague lump sums. Learn more about our new roof service here.
Click here to see more: The Complete Guide to Getting a New Roof: Everything UK Homeowners Need to Know