Birkenhead · Merseyside
Roof structure repairs in Birkenhead
Many older roofs, in Birkenhead and across Merseyside alike, were built with slim purlins and few ties. A little historic movement is normal, so we check whether the roof is still moving before recommending how far the strengthening needs to go.
Guide price from£290per rafter inc VAT
- Postcodes
- CH41, CH42, CH43, CH46, CH49
- Population
- about 330,000
- Area
- Merseyside
- Pricing region
- North West
Why does the ground in Merseyside matter for roof structure repairs?
Birkenhead, Merseyside: about 330,000 residents across postcode districts CH41, CH42, CH43, CH46, CH49. Neighbouring towns we cover: Liverpool (2 miles), Wallasey (3 miles) and Bebington (3 miles).
Clay soils are found in parts of Merseyside. Parts of Merseyside lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Merseyside: Victorian terraces and villas, inter-war council estates and post-war semis.
What to look for before calling about 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
- Horizontal cracks in the wall just below the eaves or ceiling line
Roof structure repairs prices in Birkenhead
The ranges below reflect typical North West 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 | £290 – £575 | per rafter |
| Purlin and strut strengthening | £1,150 – £2,900 | per roof |
| Tying in roof spread (straps and ties)est. | £770 – £2,400 | 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
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.
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.
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.
Questions about roof structure repairs in Birkenhead
How much will roof structure repairs cost in Birkenhead?
Guide prices for roof structure repairs in Birkenhead start from about £290 per rafter, including VAT, on North West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Birkenhead?
Yes, Birkenhead is covered, along with postcode districts CH41, CH42, CH43, CH46. We also cover nearby Liverpool and Wallasey.
Is the ground in Merseyside prone to subsidence?
Merseyside is mostly sandstone with glacial till on top, with soft coastal deposits in Sefton and the Lancashire coalfield extending under St Helens and parts of Knowsley. Old docks and industry left made ground in places. Only an investigation can say why a particular building has moved.
Do roof structure repairs need building control?
Usually yes, where the structure is strengthened or altered, or the covering becomes significantly heavier. In England and Wales that falls under Part A, in Scotland it generally needs a building warrant, and in Northern Ireland council building control approves it. We deal with building control where the work needs it.
Do I need a structural engineer for roof repairs?
For like-for-like repairs to a few rafters, often not. Where purlins, struts or ties are being redesigned, the covering is getting heavier or the walls are being pushed out, you usually do. Where the repair needs an engineer’s design or sign-off, an independent chartered structural engineer is appointed, and we can arrange this.
Other structural repairs in Birkenhead
- Floor joist repairs
- Retaining wall repairs
- Extension pulling away repairs
- Subsidence insurance claim repairs
- Underpinning
Roof structure repairs near Birkenhead
For a guide price on roof structure repairs in Birkenhead, try the quote tool or send photos of the ridge, the loft and the eaves.