What this work involves
Cracks and movement can have several causes. Gather existing information and arrange assessment before choosing a repair method. Consider the transition between an existing building and an extension.
- Existing drawings and foundation information
- Damage or new load assessment
- Ground and structural information
- Suitable methods
- Monitoring and completion records
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Coordinate opening changes with structural elements and visible proportions.
What the drawing needs to explain
Place existing and proposed elevations side by side and add a window-opening section. Mark visible changes and elements requiring adaptation inside.
Decide this before construction
Assess the existing detail before selecting products. Then coordinate insulation, ventilation and visible finishes so one improvement does not create an unexamined consequence elsewhere.
Cost factors for this service
Investigations, access, method and scale determine the cost. Floor area alone is usually insufficient for a reliable estimate.
Bring this to the discussion
Damage photographs, building age, earlier reports and plans.
Questions about the work
Does every crack mean foundation failure?
No. Cracks can have other causes. Their nature, development and relationship should be assessed before drawing conclusions.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

