New Build Waterproofing Solutions Across East Anglia
Working together with architects, contractors and developers
Why Waterproofing Matters in New Builds
Waterproofing for new builds isn’t just a box to tick, it’s about getting it right first time, with no corners cut and no nasty surprises years down the line. At APP, we design, install and guarantee waterproofing systems that meet all current standards. One point of responsibility. No finger-pointing. Just a job done properly.
BS 8102:2022 treats all below-ground structures as at risk of water ingress. In short, waterproofing isn’t optional. It’s a design requirement.
Fail to specify and install it properly, and you risk:
- Non-compliance with warranty providers
- Moisture ingress and associated damage
- Disruption and costly remedial work
Integrating the right system early on means fewer site delays, no compliance headaches and long-term protection built into the structure.
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Specialist Waterproofing for New Builds
In most new build projects, especially where warranty providers like NHBC or Premier Guarantee are involved, it’s not enough to rely on just one method. These providers now typically require a combined or ‘dual’ system approach to meet Chapter 5.4 of NHBC standards and similar clauses in Premier’s requirements. That means we often design systems that blend two types of waterproofing, ensuring compliance from the outset and reducing the risk of water ingress or warranty issues later down the line.
Barrier Systems
Type A
Tanking solutions applied to walls and floors to block water. Great for external walls with accessible working space.
Integral Systems
Type B
Using waterproof concrete as part of the structure itself. Most effective when specified from the start.
Drained Cavity Systems
Type C
Membranes fitted internally with sump and pump. The go-to for habitable basements and serviceable protection.
What we do
We Design, Install & Guarantee Our Work
We’re not just installers. We carry full design responsibility and we’re fully insured for both. That’s critical. Because in this sector, it’s the gaps between designer, installer and warranty provider that usually lead to failure. You won’t get passed from one party to another. We take the job on, and we stand by it.
We design waterproofing strategies in-house
We coordinate with your architect, engineer or main contractor
We install every system with our own teams
We offer insurance-backed guarantees on everything we do
Who we work with
Waterproofing Support for Professionals
When you’re dealing with structural waterproofing, the last thing you need is confusion about who’s doing what. That’s why we make it easy to work with us. Whether you’re at the drawing board, managing the site, or building your own home, we bring clarity, reliability and straight-talking support from day one.
Architects
We provide design-stage consultation, construction drawings, and technical guidance on detailing to BS 8102 standards.
Contractors
We integrate with site schedules, manage sequencing with groundworks teams, and deliver to programme without fuss.
Developers & Self-Builders
From one-off builds to multi-unit sites, we provide clear pricing, no jargon, and a waterproofing system that works.
Start to Finish: Our Way of Working
Whether you’re building a single home or a multi-unit block, this is what working with APP looks like:
Site Survey or Plan Review
We review your drawings and foundation details.
Design & Specification
We create a waterproofing plan that meets BS 8102 and warranty standards.
Expert Installation
Our in-house team handles everything. Tanking, membranes, sump systems, you name it.
Sign-Off & Aftercare
We provide completion certificates, maintenance guidance and optional service visits.
BS 8102:2022 Compliant
Structural Waterproofing Contractor of the Year – 2019, 2022, 2024
CSSW-Certified Design Team
PI-Insured Designs No Split Liability
New Build Waterproofing FAQs
Yes, if you’re going for NHBC, Premier or LABC warranty compliance, dual systems are usually required. We’ll guide you on the right combination for your site.
Absolutely. We regularly plug in to existing design teams. We’re here to make waterproofing easy, not to complicate it.
We offer insurance-backed guarantees underwritten by GPI. That means you’re covered even if we disappear (we won’t!).
Our base is in Cambridge but we cover all of East Anglia and take on national projects.