Roof Replacement Cost Guide Farnham 2025

Typical Costs in Farnham 2025

These are realistic current market prices for quality workmanship using proper materials in the Farnham area. They include scaffolding, skip hire, new breathable underlay, new battens, and all leadwork at ridges, valleys and flashings.

• 3-bed semi re-roof in concrete tile: £4,500–£7,000
• 3-bed semi re-roof in quality clay tile: £6,000–£9,000
• 3-bed semi re-roof in Welsh slate: £7,000–£12,000
• 4-bed detached in concrete tile: £7,000–£11,000
• 4-bed detached in clay tile: £9,000–£15,000
• 4-bed detached in natural slate: £11,000–£18,000

These ranges reflect the genuine variation in Farnham — pitch, complexity, access, and existing condition all affect the final price. Flat-pitch roofs, multiple dormers, complex ridge lines and hip sections all add cost.

NFRC guidance recommends that all battens be replaced during a full re-roof rather than reused, as batten failure is a common cause of premature covering failure and does not meet BS 5534 if under-specified.Source: NFRC / BS 5534

What Drives the Price Up

Material choice is the biggest variable — natural slate costs roughly twice what concrete tile costs. Beyond material, the key factors are pitch (steeper roofs take longer and are safer to work at a slower pace), roof complexity (hips, valleys, dormers and chimneys each add labour time), access (difficult access requiring a larger scaffold adds cost), and existing condition (rotten battens, failed underlay, and structural issues found during strip-out add materials and labour).

What Drives the Price Down

Simple hipped or gable-end roofs with no dormers are the most cost-effective to re-roof. Properties with good ladder access and no height complications are cheaper to scaffold. Concrete tile on a straightforward 3-bed semi is close to the minimum cost scenario for a complete re-roof.

What Should Be Included

A complete re-roofing quote should include: complete tile strip and removal to skip, inspection and replacement of any rotten or damaged battens (all battens should be replaced as standard — not just the bad ones), new breathable underlay throughout, new counter-battens where required, new ridge tiles or dry-fix system, all leadwork at valleys and flashings, scaffolding erection and dismantling, skip hire, and a minimum 10-year written workmanship guarantee.

Watch out for quotes that exclude battens, underlay, scaffolding or skip hire — these are real costs that don't disappear; they just appear as additions once work has started.

Red Flags in Quotes

Be wary of quotes significantly below the ranges above — they usually represent cutting corners on materials, using single-ply underlay instead of quality breathable membrane, reusing old battens, or planning to skip the scaffold in favour of ladders. Any of these compromises the quality and longevity of the finished roof.

Also be cautious of quotes that are verbal only, that don't specify materials by brand and specification, or that ask for more than 25% upfront deposit. Written, itemised quotes are the only basis for comparing like-for-like.

How to Get the Best Value

Get three written quotes specifying identical scope and materials. Time your job in late winter or early spring — roofers are typically less busy then and more likely to offer competitive pricing. Avoid committing in autumn when roofing demand peaks. And don't automatically choose the cheapest — ask the lowest quote what they're leaving out compared to the others.

Last reviewed: 19 July 2026