County Londonderry · Northern Ireland
Structural repairs in Derry
Structural repairs in Derry: subsidence, cracks, underpinning, wall ties and lintels, with a free initial assessment from your photos.
- Postcodes
- BT48
- Population
- about 84,000
- Area
- County Londonderry
- Pricing region
- Northern Ireland
Where do we cover around Derry?
With roughly 84,000 people, Derry spans postcode districts BT48 in County Londonderry. Nearby, we also cover Strabane (14 miles) and Limavady (15 miles).
Is County Londonderry prone to ground movement?
Most of County Londonderry 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 Londonderry: Georgian and Victorian houses in Derry, brick terraces and post-war estates.
What we check first in Derry
Before pricing a repair in Derry, we look at these likely causes first.
- Loose or saturated ground where water has collected around foundations
- Bay windows built on shallower footings than the main walls
- Rotten timber lintels and bressummers over bays and openings
- Garden and boundary walls leaning as tree roots and frost get to them
Repairs we carry out in Derry
- Retaining wall repairs
- Gable end wall repairs
- Subsidence insurance claim repairs
- Lintel replacement
- Roof structure repairs
- Structural surveys and crack monitoring
- Floor joist repairs
- Bay window subsidence repairs
- Chimney stack repairs
- Resin injection ground stabilisation
- Bowing wall repairs
- Underpinning
- Wall tie replacement
- Subsidence repairs
- Extension pulling away repairs
- Structural crack repairs
- Concrete repairs
- Crack stitching
- Boundary and garden wall repairs
- Brick arch repairs
Guide prices in Derry
These are guide prices for Derry, 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 |
|---|---|---|
| Crack stitching: crack stitching with stainless helical bars | £70 – £160 | per metre of crack |
| Underpinning: mass-concrete underpinning | £880 – £1,300 | per metre of wall |
| Lintel replacement: standard window or door opening | £660 – £2,200 | per opening |
| Bowing wall repairs: lateral restraint for a typical gable | £880 – £2,650 | per wall |
Do repairs in Derry need approval?
Underpinning in Northern Ireland needs council building control approval. There is no Party Wall Act in Northern Ireland.
Towns near Derry
Structural repairs in Derry: questions
Do you cover Derry?
We do. Derry and the surrounding area are covered, including nearby Strabane and Limavady. A free initial assessment from your photos is the first step.
Why do houses in Derry crack?
Common causes around Derry include rotten timber lintels and bressummers over bays and openings, shallow footings and corroded wall ties in older brick houses, and garden and boundary walls leaning as tree roots and frost get to them. The cause is checked before any repair is recommended.
How much do structural repairs cost in Derry?
It depends on the repair. On Northern Ireland rates, a standard window or door lintel from about £660 per opening and lateral restraint for a bowing gable from about £880 per wall, including VAT. Your written price follows photos or a survey.
If you are in Derry, the quickest start is a few photos and a short description. We reply with what we think is going on and what it should cost.