Structural repairs & basement construction

Crack stitching

Cracks in your walls may signal significant problems. Whether they’re caused by water damage, soil types or seasonal temperature variance, these cracks can lead to structural decline and secondary problems like water ingress. At Crownstone, our expert structural repairs team offers long-term, permanent and effective protection against movement, resolving cracks that could devalue or harm your property.

Underpinning

We can stabilise failing foundations with underpinning, a remedial solution restoring a building’s original strength when it’s been lost due to soil movement, root damage, additional weight or adjacent excavation. Crownstone has a decades-long track record in underpinning projects, giving you reassurance that your property's foundations are secure.

Basement construction

Crownstone’s expertise as specialist basement contractors guarantees a smooth process, from planning to fit-out and maintenance. Our comprehensive basement construction options include:

  • Under house (retro-fit basements): Add value without moving. Crownstone can excavate beneath your existing property to convert cellars or basement spaces while minimising disruption. We align with your architects and engineers to create waterproofed spaces to your requirements – on time, on spec and within budget.

  • Sub-basement: Ideal for extra facilities without reducing living space, Crownstone's multi-level basements offer a perfect solution.

  • Open excavation and podium decks: Extend beneath your property's original footprint with the installation of a podium deck, creating basement levels under your garden's landscaping. This option helps you gain substantial extra space, even with potential planning restrictions.

CASE STUDIES