News

We are always excited to share what is happening at Sansom.

Seismic Joints: Why the Right Product Means Nothing Without the Right Installation

Modern infrastructure relies heavily on tunnels, yet these essential structures present unique challenges in design, construction, and maintenance. In New Zealand, tunnel projects face particular complexities due to being built...

May Newsletter 2025

To date, we’ve successfully delivered waterproofing solutions for 15 new tunnels throughout New Zealand, establishing ourselves as a trusted partner for both public and private sector clients. Our tunnel...

February Newsletter 2025

We are fortunate that we can be a one stop shop around underground, facade and above ground waterproofing, seismic joints, concrete works, screeding and many other permanent or temporary...

The Unique Challenges of Tunnel Construction and Maintenance in New Zealand

December Newsletter

Since this is the time of year for resolutions, it was our resolution this year to ensure that everyone we work with knows the full scope of our capabilities. Over...

How Do We Prevent Moisture in a Warm Roof?

While historically New Zealand has been slightly behind the times in terms of construction innovation, the rise in demand for warm roofs has been a welcome change. These systems, designed...

Quality Assurance: QA Is the Secret to Success in Concrete Repairs Projects

From initial assessment, it is easy to underestimate the severity and extent of repairs associated with degradation in reinforced concrete structures – including the time and cost required to...

Below Ground Waterproofing Standards in New Zealand

In a time of intensifying climate change and evolving environmental challenges, New Zealand's below-ground waterproofing standards remain frozen in time. Many structures in NZ, existing and new have some form...

August Newsletter: 49th Birthday Edition

This August, Sansom celebrated a significant milestone—our 49th birthday. Explore the stories behind our iconic projects and the dedicated team that has been instrumental in shaping our success.

Workmanship: The Overlooked Element of the Effectiveness of Your Façade’s Waterproofing

After design, any façade work essentially breaks down to two components: the product and the workmanship. Mistakenly, it is the product that most people consider when they make their decision....

Building Consent Authorities Need to Get On Board with Type C Tanking!

Type C systems manage water/ water vapour that has entered the building and then remove it through a controlled internal drainage system. Types A or B are considered essential,...

Are Warm Roofs the Next Leaky Homes?

Managing damp and cold structures is almost like a traditional Kiwi past time. However, it’s only been in the last few years that we’ve all started pushing back on...