Saving a Notting Hill Failed Double Basement

The Project

Newton recommended our experienced specialist contractor Stonehouse in order to assess the failure and propose a comprehensive solution.

The experts at Stonehouse identified a litany of issues, from the weak, permeable structure to the lack of continuous waterproofing between levels, the inadequate pumping system, the blocked cavity drain system, and the non-existent external deck waterproofing and drainage, amongst others.

The experts at Stonehouse identified a litany of issues, from the weak, permeable structure to the lack of continuous waterproofing between levels, the inadequate pumping system, the blocked cavity drain system, and the non-existent external deck waterproofing and drainage, amongst others.

The Solution

Once structural reinforcement had taken place, Stonehouse proceeded by:

Reinforcing dry pack joints with HydroCoat 313-WP and HydroCoat 103 2K

Sealing voids and structural weaknesses with Newton Injection Resins

Preparing all internal surfaces before spraying HydroCoat 103 2K

Adhering insulation beneath soffits, providing an integral vapour barrier

Installing a full Newton CDM System with a dedicated Titan-Pro sump chamber, dual NP750 pumps and Victron battery backup protection

Waterproofing both decks with Newton’s liquid primers and membranes, overlaid and protected by a NewSeal 408 DeckDrain membrane

The Result

Stonehouse delivered an exceptional waterproofing design and installation for the client, who now has a watertight and guaranteed two-level basement beneath their home, that they can enjoy in full for the first time in many years.