What this work involves
Assess wall construction, moisture and suitability. Include window reveals, ventilation and adjacent building elements.
- Internal, external or cavity approach
- Window and floor junctions
- Facade appearance and internal space
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Compare glazing and shading as connected envelope components.
What the drawing needs to explain
Record window orientation, opening elements and existing shade. Add the main use periods so a specialist can assess the comfort question concretely.
Allow for later maintenance
Keep operating instructions and maintenance agreements for the different systems together. Record where filters and inspection points must remain accessible.
Which trade-off matters?
More glazing does not automatically call for active cooling. Compare window size, shading and use first, then assess which technical provisions are appropriate.
Cost factors for this service
Costs depend on wall build-up, access, investigation and final finishes. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for external wall & cavity insulation. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging external wall & cavity insulation?
A cavity is not automatically suitable for filling. Prior investigation determines an appropriate approach for the wall and surroundings.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

