Below Ground Tanking

Fixing Basement Waterproofing Leaks effectively

Below ground waterproofing is as important as the very structural foundations supporting a building.
Without the combination of watertight footings & foundations, a building will deteriorate rapidly.
Very often, below grade waterproofing systems are inaccessible for repairs.
In some projects, it may not be even commercially viable, or even possible, to fix failed basement membranes.

Exterior Basement Waterproofing

Exterior waterproofing involves sealing the exterior foundation walls to prevent water intrusion into the basement.
This approach is effective in combating water leaks caused by poor drainage or foundation cracks.

Some common exterior waterproofing techniques include:

Foundation Coatings: Applying a waterproof coating to the exterior foundation walls can deter water penetration.
French Drains: Installing French drains around the foundation can redirect water flow away from the basement.
Grading: Ensuring proper grading around the foundation can prevent water accumulation near the basement walls.

Interior Basement Waterproofing

Interior waterproofing focuses on managing water that has already entered the basement.
This method is beneficial for addressing leaks caused by foundation cracks or inadequate sealing.

Some common interior waterproofing techniques include:

Epoxy Injection: Injecting epoxy into foundation cracks can seal them and prevent water seepage.
Interior Drainage Systems: Installing interior drainage systems can collect and redirect water away from the basement.
Sump Pump Installation: Installing a sump pump can efficiently remove water from the basement and prevent flooding.

Basement tanking using liquid applied waterproofing membranes

Spray On Waterproofing allows access to difficult below ground level areas, where sheet & torch-on systems it is not possible.
Liquid Rubber membranes have an unique elastic property that helps fill concrete cracks while still flexibility for structural movement.
Cold spray-applied systems are fast – very fast.
Liquid Membranes can conform to any shape required.
Excellent membrane to waterproof shotcrete application.

Concrete under slab waterproofing membranes

Liquid Applied Membranes are systems are suitable to successfully seal vapours from reclaimed construction sites: reclaimed petrol station sites, chemical factory sites and seal off basements against radon gas.
Liquid Membranes sprayed in a continuous seamless barrier, providing waterproofing protection horizontally, vertically up walls and upturns, and around pipes, penetrations.
Stopping water from infiltrating below the subfloor requires choosing the correct waterproofing system together with experienced waterproofers.
Also – don’t overlook proper drainage!

FAQs Basement leaks

Some common signs of basement waterproofing leaks include water stains on walls or floors, musty odors indicating mold growth, efflorescence (white chalky residue) on walls, and cracks in walls or floors serving as entry points for water.

Common causes of basement waterproofing leaks include poor drainage around the foundation, foundation cracks allowing water infiltration, clogged gutters leading to water seepage, and improper sealing of windows or doors facilitating water entry.

Effective methods for fixing basement waterproofing leaks include exterior waterproofing (foundation coatings, French drains, grading), interior waterproofing (epoxy injection, interior drainage systems, sump pump installation), window and door sealing, and regular maintenance such as cleaning gutters, inspecting the foundation, and monitoring drainage