A condensation risk analysis using the Glaser Method typically costs between £100 and £300, depending on the number of construction elements assessed and the complexity of the build-up. Upload your drawings to receive a quotation within 15 minutes during business hours.

The full construction build-up specifications are required. This includes the layer-by-layer breakdown of each element, insulation positions and any proposed vapour control measures.

Common reasons include insulation positioned on the warm side of a vapour barrier, missing or incorrectly specified vapour control layers, highly moisture-permeable materials on the cold side of the structure, and insufficient drying potential during summer months.

Most condensation risk analysis reports are completed within 3 working days of receiving the required construction specification, but a 24 hour turnaround is available.

The Glaser Method is a steady-state calculation technique used to assess whether moisture will condense within a construction element under winter conditions and whether it will evaporate during the summer. It is referenced in BS EN ISO 13788 and accepted for demonstrating condensation risk compliance.

The underlying assessment methodology is the same, but the construction elements assessed will differ depending on the project type. Extensions, renovations and retrofits often involve mixed construction techniques that require careful consideration of moisture movement across old and new fabric.

Yes. Our condensation risk analysis reports are produced to standards BS EN IS0 13788 and BS 5250:2021 and are suitable for Building Control and warranty submission. Where elements present a risk, practical remediation recommendations are included to support a passing assessment.  Upload your details to receive a quotation within 15 minutes.

Yes. Condensation risk assessments can be updated to reflect changes to the construction build-up, insulation specification, vapour control strategy or material selection at any stage of the design process.

A condensation risk analysis should be completed at the design stage, before construction begins, so that any at-risk elements can be redesigned or detailed correctly before work starts on site.

Yes. Conversions and retrofit projects often involve changes to the building fabric, insulation and internal environment that can introduce new condensation risks. A condensation risk analysis is strongly recommended for barn conversions, office-to-residential conversions and similar projects.