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Porch Subsidence

Serving all of the United Kingdom

Get porch subsidence repair sorted across the United Kingdom

A porch that has pulled away from the main house, or cracks appearing around its foundations, points to ground movement that needs investigating. A specialist identifies what is causing the movement and sets out a repair based on what the ground actually shows.

  • Proportionate & evidence-led
  • Insurance-claim support
  • Lender-ready reports

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Know the warning signs

Could it be subsidence?

Ground movement leaves recognisable marks on a building. Every sign listed below is worth having a specialist look at, even if the cause turns out to be straightforward.

  1. Diagonal cracks more than 3mm wide that run from the corners of door or window openings

  2. Cracks that are wider at one end than the other, suggesting rotation or tilt

  3. A visible gap opening between a porch and the main house wall

  4. Doors or windows that have recently started sticking or dropped out of alignment

  5. Cracks that appear on both the inner and outer face of the same wall

  6. Cracking that appears or widens after a prolonged dry spell, particularly near large trees

  7. Steps or a porch floor that have tilted or separated from the main structure

What causes subsidence in the United Kingdom?

Ground conditions vary across the United Kingdom and the triggers for movement differ from one property to the next. The causes most frequently identified by specialists include:

  • Shrink-swell clay soils losing moisture during dry periods, particularly where tree roots are drawing water from the ground
  • Cracked or leaking underground drains that soften or erode the soil around foundations
  • Roots drawing moisture from clay beneath or immediately beside a porch foundation
  • Made ground or poorly compacted fill continuing to settle beneath a structure over time
  • Old shallow foundations on a porch that were never designed to cope with significant ground movement

What a specialist looks for

Why Porch Subsidence

Find the cause before committing to any repair

Subsidence sounds alarming, yet the ground beneath most affected homes is doing something straightforward and fixable. Cracking that gets pinned on subsidence is regularly traced back to a leaking pipe, clay soil drying out, or a tree pulling moisture from beneath the foundations, none of which require underpinning to put right. A local specialist establishes exactly what is happening below your home and recommends only the work the findings actually justify.

How it works

Why choose us

What sets us apart

  • Proportionate & evidence-led

  • Insurance-claim support

  • Lender-ready reports