Services

Retaining and basement walls

Most people avoid working below the water table. We built a reputation there.

Long block retaining wall coated in charcoal membrane with autumn trees behind

High-risk basement wall waterproofing for high-end clients who expect the job done once, and done properly.

We use materials that are resistant to chemicals and root penetration, for a seamless and effective barrier. For walls that is cementitious ACTFLEX 988 and 989. A December 2025 job was a high-risk retaining wall in Jervis Bay.

On the job

More retaining and basement walls work.

Marty brushing black membrane onto a block retaining wall above drainage gravel — Marty brushing membrane onto a block retaining wall.

Black membrane on a basement wall below the water table, heavy brush texture — Below the water table: a basement wall in black membrane.

Also from SCW

Balconies
Bathrooms and wet areas
Tops of screed
Leak repairs and remedial
Training classes

Get a quote

Got a wall that has to hold water back?

Tell us what it is and where it is. Marty and the team will come back to you.

Call Marty 0437 185 933

Monday to Friday, 7am to 5pm.
4/24 Duranbah Drive, Huskisson NSW 2540.