Cobham · Surrey
Roof structure repairs in Cobham
Roof structure repairs in Cobham are often done entirely from inside the loft, with the tiles left in place. Doubling rafters, adding struts and fitting ties rarely needs the coverings off unless decay at the eaves is severe.
Guide price from£335per rafter inc VAT
- Postcodes
- KT11
- Population
- about 17,000
- Area
- Surrey
- Pricing region
- South East
Is Surrey prone to ground movement?
We cover Cobham and its postcode districts KT11, part of Surrey, with a population of roughly 17,000. If you are just outside Cobham, we also cover Esher (3 miles), Weybridge (4 miles) and Leatherhead (4 miles).
Surrey is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Surrey: Victorian and Edwardian villas, 1930s semis and detached houses in the commuter towns, and post-war estates.
How much will roof structure repairs cost in Cobham?
The ranges below reflect typical South East costs for roof structure repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Repairing or doubling a rafter | £335 – £670 | per rafter |
| Purlin and strut strengthening | £1,350 – £3,350 | per roof |
| Tying in roof spread (straps and ties)est. | £895 – £2,800 | per roof |
Which repair method suits a home in Cobham?
Repairing or doubling rafters
Cracked, sagging or rotten rafters are strengthened by fixing a new timber alongside, often called doubling, and rotten rafter feet are cut back and spliced. The work is usually done from inside the loft with the tiles left in place, unless the covering is coming off anyway.
Best for: Individual rafters that have cracked, sagged or rotted at the feet
Wall plate replacement
Rotten or crushed wall plates are replaced in short lengths while the rafters above are propped, and bedded on the wall in mortar. The plate is then strapped down to the masonry. It is often combined with rafter foot splices along the same run.
Best for: Rot along the eaves where rafters bear on the wall
What happens when we carry out roof structure repairs in Cobham?
Send photos
Photograph the roof from across the street, both slopes if you can, and the loft timbers with a torch. Include the eaves and any cracks just below them. From these we can usually tell sag from spread and whether an engineer is needed.
Written quote
You receive a no-obligation written quote listing each timber repair, any ties or straps, propping, scaffolding and making good. Once the repair is specified, the figure becomes a fixed price in writing.
Prop, strengthen and tie
The roof is propped where members are being changed, then rafters, purlins, struts and ties are repaired or added as specified. Coverings disturbed by the work are relaid, and building control inspects where the work needs it.
Signs you may need roof structure repairs
- Daylight through the tiles, or timber that is damp, stained or crumbling
- Ridge line dipping in the middle when seen from the street
- Top of an outside wall leaning out at eaves level
Rules for roof structure repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Roof structure repairs in Cobham: questions and answers
What is the price of roof structure repairs in Cobham?
Guide prices for roof structure repairs in Cobham start from about £335 per rafter, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out roof structure repairs in Cobham?
Yes, Cobham is covered, along with postcode districts KT11. We also cover nearby Esher and Weybridge.
Does the ground around Cobham cause cracking?
North Surrey sits on London Clay, the south on Weald Clay, with chalk along the North Downs and sands in the west. Large gardens with mature trees on clay make seasonal subsidence a familiar problem. Only an investigation can say why a particular building has moved.
Why are there cracks just below the eaves?
A horizontal crack just below the eaves, along the front or back wall, is a common sign of roof spread. The rafters push the top of the wall outward and the masonry cracks where it hinges. Corroded wall ties can cause similar cracks, so the cause needs checking.
What is roof spread?
Roof spread is when the feet of the rafters move outward because nothing is tying them together firmly enough. As they spread, the ridge drops and the tops of the walls are pushed out, often with a horizontal crack below the eaves. It is fixed by adding ties, collars or straps, sometimes with rebuilding.
More repairs we carry out in Cobham
Roof structure repairs near Cobham
Get a free initial assessment of a sagging or spreading roof in Cobham from your photos or a call, and find out whether an engineer is needed.