At Northrop, we see remedial engineering as more than just fixing problems—it’s about restoring value and extending the life of the buildings people rely on every day.

We bring new life to ageing or underperforming structures through tailored, sustainable solutions. Whether it’s residential, commercial or government buildings, our focus is on revitalisation—enhancing assets for the people who use them and the communities they support.

What drives us? The challenge of investigating and resolving complex issues. We work closely with building owners to understand the root cause of defects and deliver practical, long-lasting solutions. From concrete repair to waterproofing and façade remediation, we take a thoughtful, evidence-based approach that gets results.

Our team has delivered projects across Australia, managing everything from investigations and diagnostics through to design, project management and construction support. We collaborate with clients, contractors and other consultants to deliver best-practice solutions – we get it done.

Water ingress remains one of the most prevalent and damaging defects in both new and existing buildings. We specialise in identifying the source of leaks and delivering robust solutions across roofs, balconies, basements and wet areas. By preventing internal damage and mould growth, we help protect occupant health and preserve the long-term value of the asset.

Our team provides full-envelope solutions to address performance failures in cladding systems, glazing, and sealants. Through careful diagnostics and targeted repair strategies, we improve building appearance, restore weather resistance, and enhance energy efficiency—delivering a better experience for users and reducing operational costs.

When concrete begins to fail due to corrosion, moisture ingress or other causes, early intervention is essential. We apply proven techniques to stop deterioration and restore structural integrity—extending the service life of the asset and avoiding more costly interventions in the future.

Whether it’s adapting a building for a new use, adding storeys, or addressing increased loads, our team provides practical strengthening solutions. These upgrades enable clients to maximise the use of existing structures whilst capitalizing on the current built asset.

We oversee the entire project remediation lifecycle, from scoping and consultant engagement to contractor selection and construction phase services. Our hands-on approach ensures projects are delivered on time and with minimal disruption—especially important in occupied or operational buildings.

Sound remedial outcomes begin with a solid understanding of the problem. We design and manage investigation programs that combine non-destructive testing, targeted demolition and expert analysis. This clarity allows for focused, efficient repair strategies and avoids unnecessary work.

• Building Diagnostics
• Structural Engineering
• Building fabric repair
• Waterproofing – External and Internal
• Temporary Works

• Development Feasibility Assessments
• Adaptive Reuse
• Structure Remaining Life Assessments
• Superintendent Services
• Expert Witness