Stepped or widening structural-type cracking
Further investigationWhat you may see: Cracks through masonry following mortar joints, or openings that appear active.
Risk: May indicate movement — sometimes needs engineering advice.
Building guide
External walls inspection guide
External walls take weather, movement, and ground moisture. Cracking patterns and damp clues tell an important story before you buy.
Why it matters
Not every crack is structural — but some are. Understanding patterns, damp courses, and cladding condition helps you budget repairs and avoid surprises.
Common defects
Rated the way we discuss findings in reports — Major, Minor, Safety, or Further investigation.
Rising or penetrating damp
MajorWhat you may see: Tide marks, salt, blistering paint, soft render near ground level.
Risk: Timber decay inside, health/comfort issues, costly remediation.
Bridged damp-proof course or garden beds against walls
MajorWhat you may see: Soil or paving above DPC level; render bridging.
Risk: Moisture path into the wall system.
Failed render, cladding gaps, or missing weep holes
MinorWhat you may see: Drummy render, open junctions, blocked weeps.
Risk: Water trapping and finish failure.
Impact damage or poor previous repairs
MinorWhat you may see: Patches that don’t match, filled cracks reopening.
Risk: May mask underlying movement or damp.
Quality checklist
What “good” tends to look like for this area.
- Walls plumb within normal expectations for age
- Weep holes clear where required
- DPC not obviously bridged
- Cladding/render generally sound
- Openings flashings appear serviceable from visual review
How Sitescop inspects
- Walk all elevations noting cracks, damp, and finishes
- Check junctions with roof, windows, and ground levels
- Photograph representative defects with context shots
- Recommend structural engineer when movement appears significant
Technology & knowledge
- Visual survey with photo evidence
- Moisture assessment at suspect damp zones
- Thermal imaging may highlight anomalous patterns
Photo examples
Open educational imagery matching this area of the building. We will swap these for anonymised on-site defect photos as you supply them — never publishing client-identifying details.
Side setback — brick wall, services, drainage path, and stored debris
Stepped masonry crack — movement patterns inspectors measure and report
External brickwork with outdoor unit and ground clearance at the wall
FAQ
Are hairline cracks a deal-breaker?
Often they are minor shrinkage or settlement. We rate significance and explain when further investigation is wise.