Gosport homes
Subsidence in Gosport: soft ground and filled land
Gosport sits on low-lying coastal ground where soft deposits and filled land cause foundations to settle unevenly. Find out what the cracks in your bungalow or post-war house mean, and which repair methods suit waterside plots.
Cracks appearing around your Gosport home
Waterside plots and low-lying streets in Gosport rest on soft coastal deposits. When that ground compresses or shifts under a bungalow or post-war house, the walls move with it and cracks open up.
- 1
Diagonal cracks near windows
A crack wider at one end than the other, often running from a window corner down toward the floor level.
- 2
Doors catching on frames
A door that used to close freely now sticks or scrapes, because the frame has twisted slightly out of square.
- 3
Gaps along skirting boards
A visible space between the bottom of the wall and the skirting, suggesting the floor has dropped away from it.
- 4
Sloping concrete floors
A slab floor that visibly tilts toward one side of the room, common in older post-war houses built on fill.
Local causes
Why Gosport ground moves
The peninsula is built on layers of soft silt, reclaimed land and old fill material that compress over time.
- Soft coastal deposits Silt and clay beneath the surface compress slowly under a house's weight.
- Filled ground Old docks and marshy ground were levelled with loose material that still settles.
- Drainage failures Leaking pipes wash fine soil away from shallow foundations over many months.
- Post-war construction Many bungalows were built quickly on marginal land with minimal foundation depth.
Repair methods used on Gosport homes
Different ground conditions call for different approaches. A specialist firm will choose the method that suits the soil beneath your home and the type of foundation already in place.
- Underpinning
- A structural contractor digs below the existing foundation and pours new concrete to reach stable ground. This is common where soft fill extends deep beneath post-war housing.
- Resin injection
- A specialist pumps expanding resin into the soil beneath the slab. The resin compacts loose material and lifts the floor back toward its original level without major excavation.
- Screw piling
- Steel piles are driven through made ground until they bite into a firmer layer. This suits waterside plots where traditional trench foundations would be too disruptive or unstable.
- Concrete crack repair
- Where settlement has split a driveway or patio slab, a contractor stabilises the base and fills the fracture so water cannot enter and soften the ground further.
- Subsidence survey
- A structural engineer examines the cracking, measures the movement and identifies whether the cause is drainage, soil compression or something else entirely.
Areas covered across Hampshire
Specialist firms take on subsidence enquiries throughout Hampshire. The geology changes from chalk downland to coastal silts, so local knowledge of the ground matters as much as the repair method itself.
- Gosport
If your town is not listed here, send an enquiry anyway. Firms cover the whole county.
Ask about cracks in your Gosport home
Send details of what you have noticed. An adviser will read your description and arrange for a specialist firm to contact you. There is no obligation to accept any proposed work.
- No obligation
- Free initial advice
- Local specialists