New Roofs
What a Seal Pro roof replacement involves, the materials we work in and recent full re-roofs across Berkshire and SW London.
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A full roof replacement on a typical 3-bed semi costs £7,000 to £11,000 in concrete tile in 2026. Below: guide prices by property type and material, exactly what is included, and what moves the price up or down. Then we price your actual roof, free, in writing.
Supply and fit, including scaffolding, strip and disposal, new membrane and battens. Guide ranges for a straightforward pitched roof; your written quote fixes the exact figure.
| Property | Typical roof size | Concrete tile | Clay tile | Natural slate |
|---|---|---|---|---|
| 2-bed terrace | 40–50m² | £5,500–£8,000 | £6,500–£9,500 | £8,000–£12,000 |
| 3-bed semi-detached | 55–70m² | £7,000–£11,000 | £8,500–£13,000 | £10,000–£15,000 |
| 4-bed detached | 80–100m² | £10,000–£16,000 | £12,000–£18,500 | £14,000–£22,000 |
| Bungalow | 70–90m² | £8,000–£13,000 | £9,500–£15,000 | £11,500–£18,000 |
Guide prices for 2026 assuming sound roof timbers and standard access. Complex roofs with multiple valleys, dormers or chimneys sit towards the top of each range. South West London prices typically run 10 to 15 per cent above Berkshire equivalents, mainly due to access and parking constraints.
| Roof covering | Supply & fit guide rate | Typical lifespan |
|---|---|---|
| Concrete tiles | £80–£120 per m² | 40–60 years |
| Clay tiles | £95–£140 per m² | 60+ years |
| Natural slate | £120–£180 per m² | 80–100 years |
| EPDM rubber (flat roof) | £80–£110 per m² | 30–50 years |
| GRP fibreglass (flat roof) | £90–£130 per m² | 25–30 years |
Rates include stripping the old covering. Flat roof rates are for garages, extensions and dormers; see our flat roofs page for the full picture.
The cheapest quote is often the one with the most missing from it. Every Seal Pro Roofing replacement quote includes the lot:
The figure on your written quote is the figure you pay. The only honest exception is hidden timber rot, which nobody can see until the roof is stripped; if we find any, we photograph it, price the fix and agree it with you before touching it.
Two houses on the same street can get quotes thousands of pounds apart, for good reasons. These are the six factors doing the moving.
Area drives materials and labour, but shape matters just as much. A plain gable-to-gable roof is quick; hips, valleys and dormers add cutting, leadwork and time.
Concrete tile is the value option, clay costs more and lasts longer, natural slate is the premium. The right answer depends on the house, the budget and the planning context.
Terraced streets, conservation areas, rear extensions and shared alleys all complicate scaffolding. Straightforward access keeps you at the bottom of the range.
Sound timbers cost nothing extra. Rotten rafters, wall plates or laths discovered on strip-out are priced openly with photos before any extra work starts.
Every chimney means flashings, soakers and often repointing while the scaffold is up. It is far cheaper to do it now than to scaffold again in two years.
Berkshire and Surrey prices sit close to the guide ranges above. Inner South West London runs higher, mostly through parking permits, restricted hours and access.
Guide prices get you in the right ballpark; your roof gets you the real number. We survey it, photograph it and put a fixed price in writing, free. Prefer to talk it through first? Call either number, any time.
Tell us about the job, we usually reply within the hour.
Prefer to talk? Speak to Cornelius on 07777 735785 or 01753 415 442
What a Seal Pro roof replacement involves, the materials we work in and recent full re-roofs across Berkshire and SW London.
New roofs & replacement →
Not sure you need a full replacement? See 2026 guide prices for tile, flashing, ridge and leak repairs first.
Roof repair cost guide →
Real completed roofs with photos: Surbiton, Twickenham, Richmond, Kingston and New Malden case studies.
See completed roofs →Free survey, fixed written quote, scaffolding and waste included. Rated 5.0 by 202 homeowners.