Wondering what a new roof costs in Farnham? Real 2026 prices by property type and material, what drives the figure up or down, and what a fair quote should include. Free survey, itemised written quote, no call-out fee.
A new roof in Farnham costs £6,500–£9,500 for a concrete-tile 3-bed semi, £9,000–£13,500 in clay, and £11,000–£16,000 in natural slate — all supplied and fitted with new battens, membrane, leadwork and scaffolding. Conservation-area specification adds 20–40%. Get a free written quote on 0125 244 7622.
A full roof replacement is one of the largest single maintenance costs a Farnham homeowner faces, and the range is wide for good reason. Two identical-looking semis on the same street can produce quotes thousands of pounds apart if one has sound timbers and the other has rot hidden beneath the tiles. The honest answer is that nobody can give you a firm figure without seeing the roof — but the bands below reflect real 2026 pricing for the Farnham area.
Roofers price a re-roof largely by the square metre, then adjust for the covering material, the pitch and complexity of the roof, the access, and the condition of the structure underneath. In 2026, concrete tile runs roughly £85–£170 per square metre supplied and fitted, clay tile £110–£210, and natural slate £140–£280. Those figures include the strip-off, disposal, new breathable membrane, new battens, ridge and verge work, and scaffolding.
Roof area and pitch come first — a bigger, steeper roof needs more material, more labour and more scaffold. Covering material is the next big lever, with natural slate costing close to double what concrete tile does. Access matters more than people expect: a property on a narrow street where the scaffold has to be carefully sequenced, or where a permit is needed, adds cost. And finally, the condition of the timbers underneath — rotten battens or failed rafter ends discovered during strip-off add both materials and labour.
A complete re-roofing quote should itemise: the full tile strip and removal to skip, replacement of all battens (not just the bad ones — reusing old battens fails BS 5534), new breathable underlay throughout, all leadwork at valleys and flashings, new ridge and verge, scaffolding, skip hire, and a written 10-year workmanship guarantee. Re-roofing an existing home usually qualifies for the reduced 5% VAT rate rather than 20% — confirm this in writing with any contractor before work begins.
Farnham's housing stock spans nearly two centuries, and the era of your property is the single biggest driver of what a new roof costs here. The Georgian and Victorian properties around The Borough, Castle Street and West Street sit within Farnham's conservation areas, where Waverley Borough Council expects like-for-like materials. Replacing original clay peg tiles or Welsh slate with cheaper concrete is unlikely to gain consent — and that conservation requirement typically adds 20–40% to the material cost compared with a straightforward concrete-tile re-roof on a post-war house.
By contrast, the post-war estates in Heath End, Badshot Lea, Weybourne and Upper Hale are dominated by concrete interlocking tile, now 50–70 years old and reaching the end of its design life. These are the most cost-effective re-roofs in Farnham — a straightforward concrete-tile replacement on a 3-bed semi in these areas typically lands at the lower end of the range. The 1930s semis across Wrecclesham and Rowledge sit in between, often carrying a mix of clay and early concrete tile.
Access is a genuine cost factor on Farnham's older streets. Properties on the narrow lanes around the town centre, or those set back with limited scaffold access, take longer to set up safely. Where a skip or scaffold needs to sit on the highway, a permit from Waverley Borough Council may be required. Farnham sits in the affluent Surrey commuter belt. Prices here are at the upper end of the southern England baseline — not London rates, but above the national average, particularly where conservation-area specification or difficult access is involved.
Take a typical three-bed 1930s semi in Weybourne with a straightforward gable roof and good access. In concrete interlocking tile, a full re-roof — strip, dispose, new membrane, new battens, re-tile, new ridge, leadwork, scaffold and skip — would typically fall around £6,500–£9,000 in 2026. Switch the covering to clay to match a conservation street and that rises to roughly £9,000–£13,000. Natural slate, where the property warrants it, pushes higher again. Every one of those figures assumes sound timbers; discover rot at strip-off and the number moves.
NFRC guidance and BS 5534 require all battens to be replaced during a full re-roof rather than reused, and specify mechanical fixing of tiles — reusing old battens or under-fixing is a common cause of premature covering failure.Source: NFRC / BS 5534
The covering material is the biggest single decision in a re-roof, and the right answer depends as much on your property and its location as on your budget. Concrete interlocking tile is the workhorse of Farnham's post-war housing — economical, widely available, and perfectly appropriate on the 1950s–1980s estates in Heath End, Badshot Lea and Weybourne. It lasts 40–60 years and, at £85–£170 per square metre installed, it's the most cost-effective choice where there's no aesthetic or planning reason to spend more.
Clay tile is the traditional covering for Farnham's older and period stock. It holds its colour indefinitely, develops a patina rather than fading, and is visually correct on conservation-area streets where concrete would look wrong and may not gain consent. Clay lasts 60–100 years — often outliving the homeowner who fits it — which narrows the whole-life cost gap with concrete considerably despite the higher upfront figure of £110–£210 per square metre.
Natural slate is the premium option, seen on Farnham's Victorian properties and larger period homes. Welsh slate can exceed 100 years of service and, on the right property, adds genuine value. At £140–£280 per square metre it's the most expensive covering, but on a Victorian terrace where the original slate is failing, matching in natural slate is usually the correct decision both aesthetically and for the property's value. Fibre-cement slate offers a lower-cost alternative where the look matters more than heritage authenticity.
It's worth thinking beyond the upfront number. A concrete-tile roof costing £7,000 that lasts 45 years works out cheaper per year than a felt-and-repair cycle, but a clay roof costing £10,000 that lasts 90 years can be cheaper per year still. For a property you intend to keep, and especially in a conservation area where the material is partly dictated for you, the longer-lived covering often makes better financial sense than the headline prices suggest.
A full re-roof is a significant expense, and it isn't always the right answer. Isolated slipped tiles, a single leaking valley or a small area of failed flashing are repairs, not replacement triggers — and any roofer recommending a full re-roof for a handful of slipped tiles is worth a second opinion. As a rule of thumb, if less than 20% of the covering is damaged and the rest is sound, targeted repair is the better value.
Replacement becomes the sensible choice when the signs point to whole-roof failure rather than isolated faults. Widespread slipping across a slate roof usually means nail sickness — though even then, re-nailing a sound slate roof is a cheaper alternative to full replacement and worth asking about. Perished or absent underlay, battens failing across the roof, recurring leaks in multiple places, visible sagging, or a covering that's simply reached the end of its design life all point towards replacement being more economical than repeated repairs that no longer hold.
On Farnham's post-war concrete-tile estates specifically, there's a recognisable tipping point. The concrete tiles installed in the 1950s and 1960s are now carbonating — becoming porous as the cement surface breaks down — and once that process is widespread across a roof, individual repairs stop being worthwhile because the next failure is always just around the corner. A survey tells you honestly which side of that line your roof is on.
| Property / Material | Typical Cost |
|---|---|
| 3-bed semi — concrete tile | £6,500–£9,500 |
| 3-bed semi — clay tile | £9,000–£13,500 |
| 3-bed semi — natural slate | £11,000–£16,000 |
| 4-bed detached — concrete tile | £9,000–£14,000 |
| 4-bed detached — clay tile | £13,000–£19,000 |
| Per m² — concrete / clay / slate | £85–£170 / £110–£210 / £140–£280 |
| Chimney re-flash (add) | £250–£600 each |
| Dormer (add) | £500–£1,500 each |
"Got a clear itemised quote for a full re-roof on our 1930s semi — tiles, battens, membrane, scaffold and skip all listed separately. No surprises when the bill came. Worth getting three quotes to compare properly."
"They talked me through concrete versus clay honestly rather than just pushing the dearest option. Ended up with clay to match the street and it looks right. Fair price for the area."
"Re-roofed our detached in Upper Hale. The quote held exactly — no mid-job extras. They found a bit of rotten timber during strip-off, showed me the photos, and it was already covered in the contingency. Straight dealing."
A full re-roof on a typical 3-bed semi in Farnham costs £6,500–£9,500 in concrete tile, £9,000–£13,500 in clay, and £11,000–£16,000 in natural slate — supplied and fitted with new battens, membrane, leadwork and scaffolding. Conservation-area specification adds 20–40%.
Clay and natural slate cost more to buy and take longer to lay than concrete interlocking tile. On Farnham's conservation-area properties around The Borough and Castle Street, clay or slate is often required to match the existing streetscape, which is why period-property re-roofs cost more here.
A like-for-like replacement is generally permitted development and doesn't need planning permission. Changing materials on a conservation-area property, or any work on a listed building, may require consent from Waverley Borough Council. We advise on this at survey stage.
Re-roofing an existing residential property usually qualifies for the reduced 5% VAT rate rather than the standard 20%, provided certain conditions are met. Always confirm the VAT treatment in writing with your contractor before work begins.
A standard 3-bed semi in Farnham takes 3–5 working days for the roofing work, plus a day each side for scaffold erection and removal. Complex roofs with multiple hips, valleys or dormers take longer. Weather can extend any timeline.
Yes. Safe access is a legal requirement for working at height, so scaffolding should appear as a clear line in any genuine quote. If it's missing, ask why before accepting the price — it's a real cost that doesn't disappear.
Often, yes — if under 20% of the roof is damaged and the rest is sound, a repair is far better value. Replacement makes sense when the covering, underlay and multiple details are failing across the whole roof, or when repeated repairs are no longer lasting.
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