Craigavon · County Armagh
Roof structure repairs in Craigavon
Roofs in Craigavon 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£265per rafter inc VAT

- Postcodes
- BT64, BT65, BT66
- Population
- about 59,000
- Area
- County Armagh
- Pricing region
- Northern Ireland
Why does the ground in County Armagh matter for roof structure repairs?
Craigavon (BT64, BT65, BT66) has around 59,000 residents and sits in County Armagh. We also take enquiries from nearby Portadown (3 miles), Banbridge (8 miles) and Armagh (13 miles).
Most of County Armagh is on firmer ground than the clay belts of the south-east. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across County Armagh: Georgian houses in Armagh, brick terraces in Portadown and Lurgan, and post-war estates.
Symptoms that point to roof structure repairs
- Horizontal cracks in the wall just below the eaves or ceiling line
- Struts, collars or ties cut out or missing in the loft
- Top of an outside wall leaning out at eaves level
Guide prices for roof structure repairs in Craigavon
These are guide prices for Craigavon, using Northern Ireland 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 | £265 – £530 | per rafter |
| Purlin and strut strengthening | £1,050 – £2,650 | per roof |
| Tying in roof spread (straps and ties)est. | £705 – £2,200 | per roof |
Methods for 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
From first photo to finished repair
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.
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.
Rules for roof structure repairs in Northern Ireland
In Northern Ireland, the Building Regulations (Northern Ireland) 2012 apply and the council’s building control service approves structural work such as underpinning; minor like-for-like repairs usually need no approval. The Party Wall Act does not apply in Northern Ireland, so work to shared walls depends on deeds and agreement with neighbours.
Frequently asked questions
What is the price of roof structure repairs in Craigavon?
Guide prices for roof structure repairs in Craigavon start from about £265 per rafter, including VAT, on Northern Ireland 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 Craigavon?
Yes, Craigavon is covered, along with postcode districts BT64, BT65, BT66. We also cover nearby Portadown and Banbridge.
Does the ground around Craigavon cause cracking?
County Armagh has glacial drumlin till over older rock, with soft ground and peat near Lough Neagh. Only an investigation can say why a particular building has moved.
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.
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.
More repairs we carry out in Craigavon
- Bowing wall repairs
- Crack stitching
- Wall tie replacement
- Boundary and garden wall repairs
- Lintel replacement
Roof structure repairs near Craigavon
Send photos of the roof from the street and the loft timbers at your Craigavon property for a free initial assessment and a no-obligation written quote.