Damp and Mould Specialist Clapton

Record growth at the upper corners, side reveals and sill separately. Moisture on the glass may coexist with a distinct stain at one junction. Note whether surfaces become wet during cold nights or change after rain. Photograph the opening in its normal arrangement, then any accessible affected surfaces, so the layout remains part of the evidence.

Checking shuttered window reveals and cold surfaces helps explain the precise growth pattern. Check the reveal behind the closed panel as a separate surface, including any concealed margin whose condition still needs assessment.

We ask about bedroom heating, ventilation and moisture moving from elsewhere in the home. The shutter arrangement is one factor alongside the room’s broader conditions. Discuss how the shutters are used and what changes are practical, so the recommendations fit the bedroom and the surfaces that become wet. External defects and hidden water routes still need attention if supported by the signs.

A review of airflow at the window and through the room can help assess repeated condensation. It should explain what was checked and where the fixed installation limits observation.

Treatment of the affected reveals should account for the material condition and accessible growth. Fixed shutter frames may hide margins that cannot be assessed without agreed access. The plan should not imply that cleaning the visible face confirms every concealed edge is unaffected.

Any ventilation change or external repair has its own role alongside treatment. Before painting or refitting trims, consider whether the underlying surface needs reassessment. Keep the original photographs and record which parts were treated, which source work took place and which margins remained inaccessible.

Tell us which panels open normally and whether any part would require a fitter to remove. Do not dismantle unfamiliar fixtures to prepare for the visit. A useful first assessment can identify whether existing access is sufficient and what targeted opening would answer. That helps avoid damage to the installation before the moisture question is clear.

If cleaning has already removed the visible growth, explain the method and retain earlier photographs. Dated evidence of where it returned can support the history without being treated as proof that the same unconfirmed cause is responsible every time.