Merthyr Tydfil · Mid Glamorgan
Roof structure repairs in Merthyr Tydfil
If the top of a wall at your Merthyr Tydfil 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£275per rafter inc VAT
- Postcodes
- CF47, CF48
- Population
- about 44,000
- Area
- Mid Glamorgan
- Pricing region
- Wales
Why does the ground in Mid Glamorgan matter for roof structure repairs?
We cover Merthyr Tydfil and its postcode districts CF47, CF48, part of Mid Glamorgan, with a population of roughly 44,000. If you are just outside Merthyr Tydfil, we also cover Aberdare (4 miles), Mountain Ash (4 miles) and Rhondda (7 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.
Which repair method suits a home in Merthyr Tydfil?
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 when we carry out roof structure repairs in Merthyr Tydfil?
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.
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.
Signs you may need roof structure repairs
- Top of an outside wall leaning out at eaves level
- Struts, collars or ties cut out or missing in the loft
- Roof slope looking hollow or wavy between the ridge and the gutter
How much will roof structure repairs cost in Merthyr Tydfil?
These are guide prices for Merthyr Tydfil, 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.
Roof structure repairs in Merthyr Tydfil: questions and answers
How much should I budget for roof structure repairs in Merthyr Tydfil?
Guide prices for roof structure repairs in Merthyr Tydfil 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.
Can you survey a property in Merthyr Tydfil?
Yes. We take enquiries from across Merthyr Tydfil, including CF47, CF48, and from nearby places such as Aberdare and Mountain Ash. Send photos for a free initial view and we will tell you what happens next.
Why do houses in Mid Glamorgan crack?
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.
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.
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.
Related work in Merthyr Tydfil
Roof structure repairs near Merthyr Tydfil
Every rafter, purlin and tie on the job in Merthyr Tydfil is listed in the written quote, which becomes a fixed price in writing once the repair is specified.