Dunoon · Argyll and Bute
Roof structure repairs in Dunoon
If the top of a wall at your Dunoon property seems to lean out at the eaves, the roof may be spreading. Ties, collars and straps can usually hold it back, sometimes with an engineer’s design for the new load path.
Guide price from£285per rafter inc VAT

- Postcodes
- PA23
- Population
- about 8,000
- Area
- Argyll and Bute
- Pricing region
- Scotland
What should you know about the ground under Dunoon?
We cover Dunoon and its postcode districts PA23, part of Argyll and Bute, with a population of roughly 8,000. We also take enquiries from nearby Helensburgh (9 miles), Largs (11 miles) and Alexandria (13 miles).
Clay shrinkage is less of a concern in Argyll and Bute, so other causes such as drains, poor footings or older walls are checked first. Ground movement here is more often linked to soils, drains and trees than to mining. Across Argyll and Bute, most homes are Victorian villas, stone terraces and cottages, and post-war estates.
Signs you may need roof structure repairs
- Struts, collars or ties cut out or missing in the loft
- Top of an outside wall leaning out at eaves level
- Horizontal cracks in the wall just below the eaves or ceiling line
How much will roof structure repairs cost in Dunoon?
The ranges below reflect typical Scotland 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 | £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 Dunoon?
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
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
What happens when we carry out roof structure repairs in Dunoon?
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.
Rules for roof structure repairs in Scotland
In Scotland, underpinning and other structural alterations generally need a building warrant from the council’s building standards service before work starts, and a completion certificate at the end; small like-for-like repairs often do not. There is no Party Wall Act in Scotland; shared walls are covered by title deeds and, for flats, the Tenements (Scotland) Act 2004.
Roof structure repairs in Dunoon: questions and answers
How much should I budget for roof structure repairs in Dunoon?
Guide prices for roof structure repairs in Dunoon start from about £285 per rafter, including VAT, on Scotland rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Dunoon?
Survey visits to Dunoon are by arrangement because of travel and access. We can still give a free initial view from photos, and we tell you any travel cost before a visit is booked.
Why do houses in Argyll and Bute crack?
Argyll is hard rock with thin glacial soils and raised beaches along the coast; mainland towns such as Helensburgh and Oban sit on steep coastal slopes. Only an investigation can say why a particular building has moved.
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.
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.
Related work in Dunoon
- Bay window subsidence repairs
- Wall tie replacement
- Subsidence repairs
- Crack stitching
- Bowing wall repairs
Roof structure repairs near Dunoon
Send photos of the roof from the street and the loft timbers at your Dunoon property for a free initial assessment and a no-obligation written quote.