Water Ingress & Waterproofing — Sydney
Water Ingress & Waterproofing, Sydney
Basements • Balconies • Roofs • Tanks • Pump Pits • Retaining Structures
Water is getting in somewhere — the question is where it's coming from, and why. We trace the actual entry point before selecting a waterproofing, tanking or repair system.
Water entering at one point often shows up somewhere else — hydrostatic pressure can push groundwater through a crack or cold joint well below where staining appears inside.
Not All Water Ingress Is The Same
Where water shows up isn't always where it's getting in.
Basements, balconies, roofs, tanks, pump pits and retaining structures each fail in different ways — hydrostatic pressure, a failed or missing membrane, a crack, or simple surface water. Before we recommend a system, we work through the same questions.
Where is it entering?
Basement wall, balcony deck, roof, tank, pump pit or retaining wall — the visible symptom may not identify the actual entry point.
Is it hydrostatic pressure?
Water pushed in from a high water table behind a retaining wall or basement needs a different fix to surface water crossing a balcony.
Is the membrane failing, or was one never installed?
Older buildings, balconies and podiums were often built without waterproofing to current standards — or the original membrane has simply failed.
Is it linked to a crack or joint?
Water can travel through a crack or construction joint well away from where the staining or dampness actually appears.
Our Water Ingress Diagnosis & Repair Process
We trace the source before we treat the symptom.
Sealing the spot where water appears doesn't fix anything if that isn't where it's actually getting in. This is how we approach it.
Locate
We trace the actual entry point, tracking water back through the structure rather than just treating where it appears.
Identify the mechanism
Hydrostatic pressure, surface water, cracks or joints, and failed or missing waterproofing systems each require a different approach.
Assess the structure
Basements, balconies, roofs, tanks, pump pits and retaining walls each carry different waterproofing requirements and access constraints.
Select the appropriate system
Membrane, tanking, injection or drainage — chosen for that application, not applied by default. See the possible methods below.
Install & verify
The system is installed to spec, and checked before we call the job complete.
Possible Waterproofing Methods — Selected By Diagnosis, Not By Default
Structures We Waterproof
Why RemedialCore
Backed by process, licensing and decades of hands-on industry experience.
Every repair follows the same diagnosis-first discipline — documented, licensed and insured from start to finish.
Correct diagnosis first. We trace where water is actually entering before any waterproofing or repair method is chosen.
Decades of hands-on industry experience across hundreds of commercial, residential and infrastructure projects.
Fully licensed & insured — NSW Builder and Waterproofing licences, Public Liability, Home Owner Warranty and Professional Indemnity cover.
Engineering-aligned delivery where the repair scope requires engineering input or specification.
Clear communication with clients, consultants and project teams throughout the job.
Backed by CBS Builders — established in 2009, servicing Sydney.
Repair Systems We Use
Show Us The Problem
Send us photos of where you're seeing water — we'll help identify where it's coming from.
Fill in the details and attach a few photos. We'll review what you send and advise you on the appropriate next step.
Call or email direct
Response time
We reply to every enquiry within one business day.
Service area
Sydney.
Different issue?
See all our services — concrete cancer, crack repair, carbon fibre and corrosion protection.
We reply to every enquiry within one business day. If it's urgent, call us on 02 9502 2259.