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Golders Green homes

Subsidence in Golders Green houses and flats

Edwardian and interwar houses in Golders Green sit on London clay, often shaded by mature roadside trees. Many of these large buildings have been divided into flats, which changes how a survey gets arranged. A specialist firm can assess what is happening and advise you on next steps.

Specialist firms handle the assessment
Advice tailored to converted homes
Local knowledge of Golders Green soil

A row of two-storey brick terraced houses with colourful front doors and parked cars.

Cracks and movement in your Golders Green home

Older houses in Golders Green were built on shrinkable clay that swells when wet and contracts in dry weather. Mature street trees draw moisture from the ground, so the soil beneath the foundations shifts over time. That movement leaves visible marks inside and out.

1
Diagonal cracks near windows
A crack wider at the top than the bottom, running through plaster or brickwork, often points to one part of the house sinking faster than another.
2
Doors that stick or jam
Frames distort as walls shift. A door that no longer closes smoothly, especially after a dry summer, can indicate foundation movement.
3
Gaps around skirting boards
Floors drop slightly away from walls when the ground beneath them settles. You might notice a new gap where the timber meets the plaster.
4
Bay window leaning outward
Bay windows have their own shallow foundations. If the soil dries unevenly, the whole structure can tilt away from the main wall.

Converted houses

How dividing a house into flats changes things

When a large Edwardian or interwar house becomes separate flats, ownership of the structure is usually shared. The freeholder typically arranges any subsidence investigation rather than an individual leaseholder acting alone.

A specialist surveyor needs access to multiple flats to trace cracks through the building. Leaseholders must coordinate entry so the surveyor can see the full extent of movement from basement to roof.

Insurance responsibility depends on the lease terms. Sometimes the freeholder claims on a single building policy; other times each flat owner relies on their own insurer to fund part of the repair.

Party wall agreements may apply if stabilisation work affects a neighbouring property. A specialist firm will identify whether notices need serving before any ground investigation or underpinning begins.

A vertical crack running down a grey brick wall.

What the specialist firms do

Each method addresses ground movement differently. The right approach depends on the soil, the depth of existing foundations and how far the house has shifted.

Site investigation and monitoring: A specialist surveys the house, records crack widths and installs gauges. Readings taken over several months show whether movement is ongoing or seasonal before any repair starts.
Underpinning: Where foundations are too shallow, a specialist excavates below them in stages and pours new concrete to transfer the load to stable ground. This suits severe or progressive movement.
Resin injection: A specialist pumps expanding resin into the ground beneath the foundations. It fills voids and compacts loose soil without the heavy excavation traditional underpinning requires.
Screw piling: Steel piles are driven deep into load-bearing strata. A specialist uses this method when surface soils are unreliable or when working in tight spaces between converted flats.
Concrete floor repair: Ground-bearing slabs crack and sink when the soil beneath them washes away or shrinks. A specialist lifts or replaces the damaged concrete once the underlying cause is resolved.

Areas covered around Golders Green

Specialist firms take on subsidence enquiries across the borough. Whether your home is a terrace in Finchley or a semi in Hendon, the same local geology applies and the same methods are available to stabilise it.