Business Details
50+ Years
experience
Advanced Waterproofing Solutions for Mining & Tunneling
Established in 1972, Sovereign Hydroseal has dedicated itself to advancing waterproofing technology through polymer-based grout systems. With over 50 years of underground experience, we specialise in proprietary and custom-engineered solutions for groundwater control, contaminant containment, soil improvement, and void filling. Our expertise spans tunneling, shaft sinking, mining, and oil and gas industries, where we apply innovative technologies like our radiation-tolerant NOH2O and NOH3O grouts. We prioritise technical excellence, having developed patented processes such as Scem 66, Waterstop, P100, and P200. Our global reach extends from Australia to the USA, Canada, and beyond, serving clients with tailored waterproofing installations that meet rigorous project requirements.We collaborate closely with architects, engineers, and contractors to deliver durable, budget-conscious solutions for structures ranging from tunnels and tanks to green roofs and underground facilities. Our commitment to research ensures continuous innovation, as demonstrated by our advanced polyurethane, polyurea, and cementitious product applications. Recognised for resolving complex water ingress challenges, we have contributed to landmark projects like the Hudson Yards No 7 Train Station in New York. With a focus on reliability and technical authority, we maintain industry leadership through our proven track record and client-centric approach.
Services
Underground Grouting
Tunnel Waterproofing
Shaft Sealing
Soil Stabilisation
Void Filling
Polymer Injection
Details
- Year established: 1972
Highlights and features
- We have over 50 years of experience in underground waterproofing technology.
- Our proprietary NOH2O grouts offer radiation-tolerant water control solutions.
- We serve global markets across mining, tunneling, and civil construction.
- Our patented processes address complex groundwater challenges in broken rock.
- We collaborate directly with engineers and contractors for tailored installations.
What people say
Proven technical expertise
Reliable leak rectification
Global project experience
Innovative grout systems
Services
Underground Grouting
Our underground grouting services enhance soil strength and reduce permeability in broken rock environments. Using proprietary polymer systems, we control groundwater flow and stabilise voids for mining and tunneling projects. This technology improves structural integrity while meeting environmental compliance standards for contaminant containment.
Tunnel Waterproofing
Specialist tunnel waterproofing solutions prevent water ingress in underground infrastructure. Our NOH2O grouts create durable seals in challenging conditions, protecting transportation and utility tunnels from water damage. This service extends asset lifespan while minimising maintenance requirements in critical infrastructure projects.
Polymer Injection
Polymer injection techniques address voids and fractures in subterranean structures. Our expanding resins fill gaps in concrete and rock formations, preventing water migration in mining operations and civil engineering works. This method provides long-term structural reinforcement without disruptive excavation.
Contaminant Containment
Contaminant containment systems prevent hazardous material migration from industrial sites. Our engineered grout barriers create impermeable zones around waste storage areas and mining operations, ensuring environmental compliance through chemical-resistant polymer formulations.
Civil Engineering Solutions
Civil engineering waterproofing protects structures like parking decks, green roofs, and water features. We apply advanced polyurethane and polyurea coatings using spray and roll-on methods, delivering durable protection against water ingress in urban infrastructure projects.
Questions
What industries does The Sovereign Group specialise in?
We focus on mining, tunneling, civil construction, and oil and gas sectors for waterproofing solutions.
What makes NOH2O grouts unique?
Our NOH2O grouts are radiation-tolerant and designed for extreme underground water control challenges.
Do you operate internationally?
Yes, we have operations in Australia, the USA, Canada, and serve global projects through partnerships.
What types of waterproofing applications do you handle?
We specialise in tunnels, shafts, tanks, green roofs, parking decks, and underground facilities.
How do you ensure project-specific solutions?
Our 'Design and Supply' approach tailors waterproofing systems to each project's technical requirements and budget.
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