Roof structure repairs in West Midlands

Area: West Midlands
Pricing region: West Midlands
Ground: Clay in parts
Towns listed: 16

How do local ground conditions affect roof structure repairs in West Midlands?

Parts of West Midlands lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across West Midlands: Victorian terraces, inter-war semis, Black Country industrial housing and large post-war estates.

What to look for before calling about roof structure repairs

Ridge line dipping in the middle when seen from the street
Struts, collars or ties cut out or missing in the loft
Horizontal cracks in the wall just below the eaves or ceiling line
Roof slope looking hollow or wavy between the ridge and the gutter

Roof structure repairs prices in West Midlands

These are guide prices for West Midlands, using West Midlands rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.

Guide prices inc VAT on West Midlands rates. Items marked est. are our estimates.
Item	Guide price	Per
Repairing or doubling a rafter	£300 – £600	per rafter
Purlin and strut strengthening	£1,200 – £3,000	per roof
Tying in roof spread (straps and ties)est.	£800 – £2,500	per roof

How we usually approach 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

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

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

What happens during roof structure repairs, step by step?

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.

Roof structure repairs: purlin and struts added, roof spread tied in. Indicative drawing, not to scale.

Do you need approval 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 near you in West Midlands

Questions about roof structure repairs in West Midlands

Does the ground around Birmingham cause cracking?

The West Midlands is mostly Mercia Mudstone and glacial till, with the South Staffordshire coalfield under much of the Black Country, where shallow coal and limestone workings are recorded around Dudley, Tipton and Walsall. Parts of West Midlands lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Only an investigation on site can say why a particular building has moved.

How much will roof structure repairs cost in West Midlands?

On West Midlands rates, roof structure repairs starts from about £300 per rafter, including VAT. The written price depends on the extent of the damage, access and whether an engineer or building control is needed.

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.

Is a sagging roof ridge dangerous?

A slight, even dip in an old roof is often historic movement that stopped long ago. A sag that is getting worse, cracking timbers, walls pushing out at the eaves or recently removed struts should be checked soon. Avoid storing heavy items in the loft until then.