Caerphilly · Mid Glamorgan
Roof structure repairs in Caerphilly
Roofs in Caerphilly 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£275per rafter inc VAT
- Postcodes
- CF83
- Population
- about 31,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
How do local ground conditions affect roof structure repairs in Caerphilly?
Caerphilly, Mid Glamorgan: about 31,000 residents across postcode districts CF83. Neighbouring towns we cover: Risca (6 miles), Pontypridd (6 miles) and Nelson (6 miles).
Parts of Mid Glamorgan have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Mid Glamorgan, and a coal mining search is worth checking where movement is unexplained. Across Mid Glamorgan, most homes are long stone and brick terraces on valley sides, Victorian houses in Bridgend and post-war estates.
How we usually approach roof structure repairs
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
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
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.
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.
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.
What to look for before calling about roof structure repairs
- Horizontal cracks in the wall just below the eaves or ceiling line
- Roof slope looking hollow or wavy between the ridge and the gutter
- Ridge line dipping in the middle when seen from the street
Roof structure repairs prices in Caerphilly
These are guide prices for Caerphilly, using Wales 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 | £275 – £550 | per rafter |
| Purlin and strut strengthening | £1,100 – £2,750 | per roof |
| Tying in roof spread (straps and ties)est. | £735 – £2,300 | per roof |
Rules for roof structure repairs in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Questions about roof structure repairs in Caerphilly
What is the price of roof structure repairs in Caerphilly?
Guide prices for roof structure repairs in Caerphilly start from about £275 per rafter, including VAT, on Wales 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 Caerphilly?
We do. Caerphilly and the surrounding area are covered, including nearby Risca and Pontypridd. A free initial assessment from your photos is the first step.
Does the ground around Caerphilly cause cracking?
Mid Glamorgan lies on the South Wales coalfield, with dense historic workings, spoil tips and steep valley sides. Landslip, retaining walls and mining legacy are all live issues in the valleys. 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 the roof be strengthened without removing the tiles?
In most cases, yes. Doubling rafters, adding struts and fitting ties can all be done from inside the loft with the coverings in place. Tiles usually only come off where timber near the eaves is badly decayed, or the roof is being re-covered anyway.
More repairs we carry out in Caerphilly
- Subsidence insurance claim repairs
- Concrete repairs
- Mining subsidence repairs
- Extension pulling away repairs
- Brick arch repairs
Roof structure repairs near Caerphilly
If struts were removed for a loft room in Caerphilly, send photos of the space and we will price putting a proper load path back.