Roofing projects on Cobham's detached homes tend to be larger and more involved than average, because the housing stock favours generous footprints, steep pitches and multiple roof planes. A re-roof here is rarely a simple strip-and-recover; it often means scaffolding a wide elevation, working around dormers and chimneys, and handling heavier premium materials. The result is longer programmes and more planning than a standard semi or terrace would need.
What makes roofs on Cobham's detached homes more involved?
Many properties around Cobham and the surrounding Surrey villages sit on substantial plots, with detached houses that have been extended, remodelled or built to individual designs. That tends to produce large roof areas split across several sections, sometimes joining an original house to later additions at different heights and angles.
Mature trees, narrow private drives and gated entrances can also complicate access. A surveyor will usually look at how scaffolding and a tower platform can be positioned, where materials can be stored, and whether a skip or grab lorry can reach the site without obstructing a lane. These access factors shape both the cost and the timetable.
Why complex hips, valleys and dormers add to the work
A re-roof here is rarely a simple strip-and-recover; it often means scaffolding a wide elevation, working around dormers and chimneys, and handling heavier premium materials.
Larger detached roofs often carry several hips (the sloping external angle where two pitches meet), valleys (the internal channel where two slopes meet to drain water away) and dormer windows. Each junction is a point where water can find a way in, so each needs careful detailing rather than a repeated standard fix.
This affects the work in a few practical ways:
- Valleys may need lead or a proprietary valley system, cut and dressed to fit the angle precisely.
- Hips require either hip tiles bedded and pointed, or a dry-fix system mechanically fastened.
- Dormers introduce extra flashings, cheeks and small flat or pitched sections that meet the main roof.
- Chimneys and rooflights add further flashing and weathering details.
More junctions mean more cutting, more individual flashings and slower progress per square metre. A roof with intricate geometry can take considerably longer to cover than a plain gable roof of the same area.
Material choices on larger high-value roofs
On high-value detached homes, the covering is often chosen to match the architecture and the local character rather than for lowest cost alone. Natural slate is a common choice on period and higher-specification properties, valued for its longevity and appearance, though it is heavier and more expensive to lay than concrete tiles.
Where natural slate is used, the supporting structure and battens must suit the load, and the slates are typically holed and nailed individually. Clay tiles, handmade or machine-made, are another premium option, particularly where a property sits within a conservation area or near listed buildings. In those settings, planning conditions may limit the choice of material and colour, so it is worth checking with the local authority before committing.
Planning a phased re-roof on a big property
A large roof does not always have to be done in one continuous run. Where a house has clearly separate sections, the work can sometimes be split into phases, which can help manage budget and keep parts of the property weathertight while others are stripped.
Phasing has trade-offs. It can mean scaffolding is hired for longer overall, and the junctions between completed and unfinished sections need temporary weatherproofing. Most firms will weigh the saving of a single mobilisation against the convenience of staging the work around the household.
For any large-span re-roof, allow time for survey, material lead times — natural slate and handmade clay can take weeks to source — and weather contingency. You should ask how the programme accounts for these, and how the roof will be protected if rain interrupts an open section.
Reviewed: June 2026