Biggleswade · Bedfordshire
Roof structure repairs in Biggleswade
Roofs in Biggleswade that were re-covered with heavier concrete tiles, or had struts cut out for a loft room, often start to sag years later. Spotting which change caused the movement is the first step to a repair that holds.
Guide price from£315per rafter inc VAT
- Postcodes
- SG18
- Population
- about 17,000
- Area
- Bedfordshire
- Pricing region
- East of England
Why does the ground in Bedfordshire matter for roof structure repairs?
Biggleswade (SG18) has around 17,000 residents and sits in Bedfordshire. We also take enquiries from nearby Letchworth Garden City (8 miles), St Neots (9 miles) and Bedford (9 miles).
Much of Bedfordshire sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Bedfordshire: Victorian terraces in Bedford and Luton, large inter-war and post-war estates, and newer estates on former clay pits and brickfields.
From first photo to finished repair
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.
Symptoms that point to roof structure repairs
- Top of an outside wall leaning out at eaves level
- Horizontal cracks in the wall just below the eaves or ceiling line
- Ridge line dipping in the middle when seen from the street
Guide prices for roof structure repairs in Biggleswade
Guide prices below are for homes in Biggleswade, on East of England rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Repairing or doubling a rafter | £315 – £630 | per rafter |
| Purlin and strut strengthening | £1,250 – £3,150 | per roof |
| Tying in roof spread (straps and ties)est. | £840 – £2,600 | per roof |
Methods for roof structure repairs
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
Tying in roof spread
New ties, collars or steel straps connect opposite rafters, or fix the rafter feet and wall plate firmly to the ceiling joists, so the outward thrust is resisted. Leaning wall heads are strapped back to the roof, and a badly spread roof may need partly rebuilding first.
Best for: Walls pushed out at eaves level by spreading rafters
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.
Frequently asked questions
What is the price of roof structure repairs in Biggleswade?
Guide prices for roof structure repairs in Biggleswade start from about £315 per rafter, including VAT, on East of England 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 Biggleswade?
Yes, Biggleswade is covered, along with postcode districts SG18. We also cover nearby Letchworth Garden City and St Neots.
Does the ground around Biggleswade cause cracking?
Much of Bedfordshire sits on Oxford Clay and Gault Clay, with chalk rising towards the Chilterns in the south. The clay vales shrink in dry summers and swell in wet winters, which is why seasonal cracking is common around Bedford. 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 Biggleswade
- Retaining wall repairs
- Bay window subsidence repairs
- Lintel replacement
- Boundary and garden wall repairs
- Brick arch repairs
Roof structure repairs near Biggleswade
For a guide price on roof structure repairs in Biggleswade, try the quote tool or send photos of the ridge, the loft and the eaves.