Retaining Wall

Waterproofing Retaining Walls

A Retaining Wall is a structure designed and constructed to resist the lateral pressure of soil when there is a change in ground level. Principle pressures acting on a Retaining Wall come from the retained soil and from loading by ground and surface water where this water is not adequately drained.

A Retaining Wall may be independent of a building or structure, or it may form part of the general accommodation such as within a Lower Ground Floor, Semi-Basement, Basement or Cellar. Where buildings are constructed on a sloping site, changes in ground levels internally or externally may be dealt with by the construction of a Retaining Wall.

Protectahome are regularly asked to deal with Waterproofing Retaining Walls in addition to Structural Repairs to structures of the same nature. This page will cover our Waterproofing services, click for more information on our Structural Repair Services for retaining walls.

  • Waterproofing Retaining Walls on a Sloping Site.
    Cavity Drain Membrane (Type C Protection) installed to Earth Retaining Walls of New Build Project on a Sloping Site.
  • Waterproofing Retaining Walls
    Spray Applied Liquid Membrane Applied to Concrete Retaining Wall as part of Waterproofing Installation.
  • Waterproofing Retaining Walls
    Cavity Drain Membrane (Type C Protection) Installed to Earth Retaining Walls.
  • Waterproofing Retaining Walls
    Pressure Relief Membrane Installed and Backfill Completed to Compliment Internal Waterproofing System.
  • Waterproofing Retaining Walls
    BEFORE: New Build Project with Earth Retaining Rear and Side Elevations Waterproofed as a Semi-Basement.
  • Waterproofing Retaining Walls
    AFTER: New Build Project with Earth Retaining Rear and Side Elevations Waterproofed as a Semi-Basement.
Our Structural Waterproofing division are specialists in the design and installation of Waterproofing solutions for Retaining Walls.

For waterproofing retaining walls, we design and install internally and externally applied systems to both existing and new build retaining walls.

In accordance with recommendations made within BS8102:2022 Code of practice for the protection of below ground structures against water ingress, Protectahome recommend that we are involved at the earliest possible stage and form part of the project design team, enabling us to deliver a fully integrated, bespoke, waterproofing solution.

In most circumstances, Retaining Wall Waterproofing installed by us will benefit from the provision of a Protectahome long term Guarantee. Options for Insurance Backed Guarantees are also available.

Protectahome’s own Professional Indemnity insurance and Product Guarantee insurance give our clients and end users further peace of mind and confidence in engaging us as their Retaining Wall Waterproofing Professional.

For advice on waterproofing retaining walls or to book a Survey please Contact Us on 0800 055 6966 or alternatively email us via

Guaranteed Waterproofing, Damp Proofing, Dry Rot, Woodworm

Waterproofing Case Studies

Ridgeway Hill, Newport

The Project: New build luxury development of three storey homes constructed on a sloping site. The semi-basement, lower ground floors, required waterproofing.

Wilko Distribution Centre, Monmouthshire

The Project: Refurbishment of a 900,000 sq. ft. Wilkinson’s warehouse and distribution centre. The refurbishment included necessary tanking works to several conveyor belt and lift pit areas.

Principality Stadium, Cardiff

Waterproofing Project: Construction of a new plant area to house the installation of over £3.5m worth of permanent generators to power the Principality Stadium during events.

Alexandra Park, Nottingham

The Project: Developed by an award winning designer, construction of 15 individually designed luxury 4 & 5 bed homes in Nottingham. Due to the site topography, almost all of the properties featured a semi-basement requiring waterproofing.

Best Western, Aston Hall Hotel, Nr. Sheffield

The Project: The construction of a detached, part retaining, new build function and events building for the Best Western Aston Hall Hotel near Sheffield.

St Aubyn’s Rise, Tiverton, Devon

The Project: Development of 14 3 & 4 bedroom detached luxury homes set within the picturesque Exe Valley near Tiverton, Devon. The development site significantly slopes from front to rear resulting in several of the plots being built into the hillside.

B&B Barn Conversion, Usk, Monmouthshire

The Project: Barn conversion to B&B accommodation. The earth retaining elements of this barn conversion required specialist waterproofing to protect the finishes from water ingress from the ground.

Former Stuart Crystal Factory, Stourbridge, West Midlands

The Project: To restore & convert the former Stuart Crystal Factory in Wordsley, Stourbridge to provide a mix of commercial & residential space. Specialist waterproofing works required during the restoration.

Horizon Apartments, Ogmore-by-Sea, South Wales

The Project: 7 award winning, luxury new build apartments complete with stunning sea views on the South Wales Heritage Coastline at Ogmore-by-Sea. Partially retaining, the […]

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