Norwich · Norfolk
Subsidence repairs in Norwich
Tapered cracks around the windows or doors of a Norwich home are worth taking seriously without assuming the worst. In most cases the cause can be found and removed, and the house then needs crack stitching and making good rather than new foundations.
Guide price from£2,600per property inc VAT
- Postcodes
- NR1, NR2, NR3, NR4, NR5
- Population
- about 140,000
- Area
- Norfolk
- Pricing region
- East of England
How do local ground conditions affect subsidence repairs in Norwich?
Norwich (NR1, NR2, NR3, NR4, NR5) has around 140,000 residents and sits in Norfolk. Nearby places we cover include East Dereham (16 miles), Great Yarmouth (18 miles) and Lowestoft (22 miles).
Norfolk has a mix of ground, with clay in some places and firmer rock in others. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Norfolk: flint and brick cottages, Victorian terraces in Norwich and Great Yarmouth, and post-war bungalows.
How we usually approach subsidence repairs
Foundation strengthening
Where the ground cannot be made stable, the load is carried down to firmer soil by underpinning, a beam-and-base scheme, mini-piles or resin injection, depending on the soil and access. It is designed by an engineer and is the exception, not the rule.
Best for: Ongoing movement where removing the cause has not worked
Crack stitching and making good
Once movement has stopped, cracked brickwork is cut along the bed joints, stainless helical bars are bonded in to tie the wall together, and the joints are repointed to match. Inside, plaster is renewed along the crack line before redecoration.
Best for: Category 1 to 3 cracking in walls that are otherwise sound
What happens during subsidence repairs, step by step?
Send photos or call
Send photos of the cracks with a coin or tape for scale, and say when you first noticed them. We give a free initial assessment and suggest whether an engineer, a drain survey or your insurer comes first.
Find the cause
An independent chartered structural engineer inspects the house and, where needed, arranges a drain survey, trial pits or soil tests. We can arrange the engineer. The aim is to know what is moving, and why, before money goes on repairs.
Deal with the cause
Drains are repaired, vegetation is managed on the engineer’s advice, or a foundation scheme is designed if nothing else will work. Where monitoring is recommended, readings run for several months to show the movement has stopped.
What to look for before calling about subsidence repairs
- A gap opening between the skirting board and the floor
- Fresh cracks showing on both the inside and outside of one wall
- Diagonal cracks wider at the top, running from window or door corners
Subsidence repairs prices in Norwich
Prices in Norwich are worked out on East of England rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Structural engineer's investigation and report | £525 – £2,100 | per property |
| CCTV drain survey (common first check) | £160 – £370 | per survey |
| Typical repair once the cause is dealt with: crack stitching and making goodest. | £2,600 – £12,600 | per property |
| Foundation strengthening where it is needed (see underpinning) | £1,050 – £3,700 | per metre of wall |
Rules for subsidence repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about subsidence repairs in Norwich
What is the price of subsidence repairs in Norwich?
Guide prices for subsidence repairs in Norwich start from about £2,600 per property, including VAT, on East of England rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out subsidence repairs in Norwich?
Yes, Norwich is covered, along with postcode districts NR1, NR2, NR3, NR4. We also cover nearby East Dereham and Great Yarmouth.
Does the ground around Norwich cause cracking?
Norfolk is chalk covered by glacial sands, gravels and boulder clay, with fen silts in the west and soft cliffs on the north-east coast. Boulder clay areas can shrink near trees, and historic chalk mines are recorded under parts of Norwich. Only an investigation can say why a particular building has moved.
Does subsidence always need underpinning?
No, most subsidence is repaired without underpinning. When a leaking drain is fixed or nearby vegetation is managed, the ground usually stabilises and the house needs only crack repairs. Foundation work is kept for movement that continues after the cause has gone.
Will past subsidence affect my home insurance?
It can, because insurers ask about previous subsidence at renewal or when you switch. Staying with the insurer who handled a claim is often simplest. Answer any new insurer’s questions honestly and keep the repair records, which show the problem was dealt with.
More repairs we carry out in Norwich
- Resin injection ground stabilisation
- Structural crack repairs
- Roof structure repairs
- Brick arch repairs
- Boundary and garden wall repairs
Subsidence repairs near Norwich
Send photos of the cracks in your Norwich home, with something for scale, and we will give a free initial assessment and tell you the sensible next step.