Thermal Imaging

Identify heat loss, insulation irregularities and hidden building issues

Thermal imaging uses infrared technology to detect surface temperature variations.

When interpreted under appropriate environmental conditions, these surface temperature patterns can reveal where heat is being lost, where insulation is underperforming or where conditions may lead to condensation.

Why Thermal Imaging Matters

Thermal irregularities can lead to:

  • Ongoing heat loss and higher energy costs

  • Cold internal surfaces and discomfort

  • Increased risk of condensation and mould growth


Infrared image of a hallway with heated storage units or lockers, showing varying heat levels indicated by colors from blue to red.

What Thermal Imaging Can Identify

  • Missing or disturbed insulation

  • Thermal bridging

  • Air leakage pathways

  • Areas affected by moisture

  • Surfaces at risk of condensation


How It Works

Thermal imaging cameras record surface temperatures and display them as visual images.

These images are interpreted in context with environmental conditions to understand what they indicate.


What Thermal Imaging Does Not Do

Thermal imaging is an interpretative diagnostic tool. It does not:

  • See though solid surfaces

  • Detect mould directly

  • Confirm structural integrity

  • Replace invasive investigation where necessary


Thermal Imaging with Airtightness Testing

Thermal imaging is often used on its own but can be combined with airtightness testing where air leakage is a key concern.

Using a blower door to create pressure difference can:

  • Increase air movement through leakage paths

  • Create more distinct temperature patterns at leakage points

This is most beneficial when:

  • Investigating draughts or suspected air leakage

  • Attempting to locate hard-to-detect leakage pathways

  • Highlight areas where the air barrier may be discontinuous or less effective

It is generally not required for:

  • Insulation-only assessments

  • Moisture investigations where air movement is not a factor

Who It’s For

Homeowners – investigating comfort issues, cold spots or suspected defects
Builders – quality assurance and defect identification
Architects and consultants – performance validation and diagnostics
Property professionals – condition assessment and reporting

What You Receive

Thermal images highlighting areas of interest

Professional interpretation of observed patterns (for informational purposes only; no design or remedial advice provided)

Findings to support further investigation or action where required