How to Prepare for a Damp Survey

To get the most accurate results from a diagnostic damp survey, a little preparation goes a long way. Because diagnostic surveyors use sensitive instruments like infrared thermal cameras and electronic hygrometers, a few simple steps will help them map the property thoroughly.

1. Maintain Regular Heating Patterns

Do not turn off your heating or open all the windows before the surveyor arrives. To accurately calculate relative humidity and locate condensation risk, the surveyor needs to measure the property under normal living conditions. opening windows can temporarily mask high relative humidity issues and skew the results.

2. Clear Wall Space Near Damp Areas

Diagnostic equipment must touch the affected walls. Please move lightweight furniture, laundry baskets, and storage boxes away from damp walls and corners. This is especially important for fitted wardrobes or cupboards where condensation often develops behind stored clothes.

3. Provide Access to Key Services

Damp is often linked to external defects or underfloor voids:

• Ensure the garden path along damp walls is clear of wheelie bins or wood piles.
• Ensure access is available to the cellar, basement, loft latch, or underfloor access hatches.
• Have your boiler manual or maintenance history ready, especially if you suspect pipe leaks.

By following these preparation steps, you ensure the surveyor can work efficiently and provide clear, practical advice in their final written report.