Thorne · South Yorkshire
Roof structure repairs in Thorne
Roof structure repairs in Thorne 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£285per rafter inc VAT
- Postcodes
- DN8
- Population
- about 17,000
- Area
- South Yorkshire
- Pricing region
- Yorkshire and the Humber
Is South Yorkshire prone to ground movement?
Thorne (DN8) has around 17,000 residents and sits in South Yorkshire. Nearby places we cover include Goole (7 miles), Doncaster (9 miles) and Adwick-le-Street (10 miles).
Parts of South Yorkshire have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of South Yorkshire, and a coal mining search is worth checking where movement is unexplained. Typical buildings in South Yorkshire: Brick and stone terraces, colliery housing, inter-war council estates and post-war semis.
What happens when we carry out roof structure repairs in Thorne?
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.
Engineer’s design where needed
Where purlins, struts or ties must be redesigned, or the roof carries a heavier covering, an independent chartered structural engineer is appointed to specify the work. We can arrange this, and their design sets the sizes and fixings.
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
- Horizontal cracks in the wall just below the eaves or ceiling line
- Daylight through the tiles, or timber that is damp, stained or crumbling
- Roof slope looking hollow or wavy between the ridge and the gutter
How much will roof structure repairs cost in Thorne?
These are guide prices for Thorne, using Yorkshire and the Humber 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 | £285 – £570 | per rafter |
| Purlin and strut strengthening | £1,150 – £2,850 | per roof |
| Tying in roof spread (straps and ties)est. | £760 – £2,400 | per roof |
Which repair method suits a home in Thorne?
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
Purlin and strut strengthening
Undersized purlins are strengthened with extra timber or replaced, and new struts are taken down to a load-bearing wall. Where there is no suitable wall, an engineer designs the load path. Temporary props hold the roof while members are changed.
Best for: Sagging slopes, slim purlins and struts removed from the loft
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 Thorne: questions and answers
What is the price of roof structure repairs in Thorne?
Guide prices for roof structure repairs in Thorne start from about £285 per rafter, including VAT, on Yorkshire and the Humber 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 Thorne?
Yes. We take enquiries from across Thorne, including DN8, and from nearby places such as Goole and Doncaster. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Thorne cause cracking?
South Yorkshire lies largely on the Coal Measures, with a long history of shallow and deep mining around Barnsley, Rotherham and Doncaster. Sheffield's hillside sites add retaining walls and steep ground to the mix. Only an investigation can say why a particular building has moved.
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.
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 Thorne
- Subsidence insurance claim repairs
- Boundary and garden wall repairs
- Extension pulling away repairs
- Gable end wall repairs
- Crack stitching
Roof structure repairs near Thorne
Get a free initial assessment of a sagging or spreading roof in Thorne from your photos or a call, and find out whether an engineer is needed.