In this article we cover:
- How much external walls cost in 2025
- Cost elements of external walls
- Table comparing costs of each element
- How the costs compare to 2023
For cost purposes, external walls refer to the structure of the main external envelope of the property. It starts at the internal ground floor level of the property (the DPC level at which the substructure element stopped) and extends to the wall plate level of the roof construction.
The cost of external walls is down to three main factors: height, makeup, and finish. The height of the walls will depend on factors such as the number of floors and floor to ceiling height.
The tables below compare how costs differ depending on insulation type, ceiling height, wall finishes and inner leaf block thickness.
Measuring through openings
It’s commonplace for block layers to charge for their work ‘through openings’, meaning that when they calculate the quantity of blocks to charge for, and their labour, as if there were no openings.
Check out and compare costs back in 2023 here.





















