Kensington and Chelsea · Greater London
Roof structure repairs in Kensington and Chelsea
Roof structure repairs in Kensington and Chelsea 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£375per rafter inc VAT
- Postcodes
- SW3, SW5, SW7, SW10, W2
- Population
- about 140,000
- Area
- Greater London
- Pricing region
- London
What should you know about the ground under Kensington and Chelsea?
Kensington and Chelsea is one of the 32 London boroughs, with around 140,000 residents in districts such as SW3, SW5, SW7, SW10, W2. We also take enquiries from nearby Hammersmith and Fulham (1 miles), Westminster (2 miles) and Wandsworth (3 miles).
Greater London 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. Typical buildings in Greater London: Victorian and Edwardian terraces with shallow footings, inter-war semis in the outer boroughs, and converted flats and mansion blocks.
What happens when we carry out roof structure repairs in Kensington and Chelsea?
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.
Loft and outside survey
On site we check rafter sizes and spacing, purlins, struts, ties and wall plates, look for rot and past alterations, and measure any lean at the wall head. The covering is noted too, because its weight affects the repair.
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
- Struts, collars or ties cut out or missing in the loft
- Roof slope looking hollow or wavy between the ridge and the gutter
How much will roof structure repairs cost in Kensington and Chelsea?
These are guide prices for Kensington and Chelsea, using London rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Repairing or doubling a rafter | £375 – £750 | per rafter |
| Purlin and strut strengthening | £1,500 – £3,750 | per roof |
| Tying in roof spread (straps and ties)est. | £1,000 – £3,100 | per roof |
Which repair method suits a home in Kensington and Chelsea?
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
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
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 Kensington and Chelsea: questions and answers
What is the price of roof structure repairs in Kensington and Chelsea?
Guide prices for roof structure repairs in Kensington and Chelsea start from about £375 per rafter, including VAT, on London 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 Kensington and Chelsea?
Yes. We take enquiries from across Kensington and Chelsea, including SW3, SW5, SW7, SW10, and from nearby places such as Hammersmith and Fulham and Westminster. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Kensington and Chelsea cause cracking?
Most of Greater London sits on London Clay, among the most shrinkage-prone ground in the UK, with river gravels along the Thames. Subsidence claims here are among the most frequent in the country, especially after dry summers and near street and garden trees. 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.
Can heavy concrete tiles damage a roof?
Yes, if the frame was designed for lighter slate or tiles and was not strengthened. The extra weight makes rafters and purlins sag and can bring on roof spread. Before re-roofing in a heavier material, have the structure checked and notify building control.
More repairs we carry out in Kensington and Chelsea
Roof structure repairs near Kensington and Chelsea
Get a free initial assessment of a sagging or spreading roof in Kensington and Chelsea from your photos or a call, and find out whether an engineer is needed.