Independent chartered building surveyorsEstablished 2017 · London & the Home Counties

Qualis expertise / 03

Defect Analysis

Understand the cause. Plan the repair.

A stain, crack or recurring leak is a symptom. We investigate the building and the available evidence to understand the likely cause and recommend proportionate next steps.

Discuss this service

How we help

Find the cause.
Plan the next step.

Our inspections focus on the concern you have raised, considering how the building is constructed, how it performs and what has changed. We explain the likely causes, the implications and suitable repair or investigation options.

Our service

01

Damp and moisture ingress

Investigation of dampness, leaks and water penetration using visual inspection, moisture meters and thermographic imaging where appropriate.

02

Cracking and movement

Assessment of visible cracking and signs of movement, with advice on monitoring or specialist investigation where appropriate.

03

Building fabric defects

Review of roofs, walls and other accessible elements to identify deterioration and failures.

04

Repair recommendations

A written record of findings, photographs and practical recommendations for the next stage.

The Qualis approach

Evidence before assumptions.

We distinguish what can be established during the inspection from matters requiring opening up, monitoring or specialist testing. This helps you commission the right next step and avoid treating the symptom alone.

A closer look

See beyond the surface.

Where appropriate, thermographic imaging helps us identify surface temperature patterns and target further investigation. We assess these alongside moisture meter readings and the building’s construction.

Thermographic inspection image showing temperature variation around a window junction
Thermographic inspection image of a window corner and adjoining wall

Thermal images show surface temperature differences; they do not establish the presence or cause of damp on their own.

Useful to know

Your questions.

Will the inspection involve opening up?

The initial scope is normally non-intrusive. If concealed areas need investigation, we explain why and agree any additional work separately.

Can you inspect a difficult-to-reach roof?

Where suitable, we can include a drone survey to obtain a closer view. Suitability depends on access, site conditions, weather and flight permissions.

Can thermal imaging prove that a wall is damp?

No. It shows surface temperature patterns. We interpret these alongside moisture readings, construction details and other evidence.

What should I send before the visit?

Photographs, the history of the problem, previous repair details and any relevant drawings or reports help us plan the inspection.

Will you recommend repairs?

We explain suitable next steps and repair priorities. If the cause remains uncertain, we identify the further investigation needed.

Let’s talk

Tell us about your property.

A clear brief. The right expertise. A practical next step.

Discuss your requirements 07888 752040