Protecting Properties and Sites from Auckland’s Heavy Rainfall
Auckland’s mix of intense downpours, sloped sites, and clay-based soils can overwhelm stormwater systems that aren’t designed correctly. When runoff has nowhere to go, it leads to flooding, erosion, pooling, and water entering buildings, garages, or landscaping — often causing preventable damage.
Stormwater drainage systems are designed to collect rainwater from roofs, hard surfaces, driveways, and surrounding land, and redirect it safely into the public stormwater network or designated soakage areas. A properly engineered system ensures water is moved away from structures before it can cause issues.
AH Drainage provides stormwater solutions built specifically for Auckland’s conditions. Our systems are designed to capture, direct, and disperse runoff safely — protecting sites during heavy rainfall events. We also manage all design work, stormwater calculations, Watercare applications, and Auckland Council compliance, giving you confidence your system meets regulations and performs reliably in the long term.
Stormwater Solutions for Every Site
Our stormwater systems are designed for performance and compliance across all project types, including:
Residential properties
New builds, extensions, and private upgrades
Commercial and industrial sites
High-capacity drainage and runoff management
Public infrastructure
Subdivisions, road networks, and council assets
Retrofitting and remediation
Replacing non-compliant or undersized systems
Flood-prone areas
Targeted solutions for sites at higher risk
Smart, Compliant Drainage Built to Last
With over 50 years of drainage experience, Senior Certifying Drainlayer Allen Harriman leads every stormwater project. We combine technical skill with practical, hands-on understanding of Auckland’s ground conditions and compliance requirements.
End-to-end management — design, documentation, installation, and inspections
Systems built for long-term performance and resilience
Proven capability across residential, commercial, and council projects
Fast turnaround on Auckland Council and Watercare approvals
Clear communication and one-point accountability
Book a Stormwater Drainage Assessment Today
Talk to AH Drainage about designing or upgrading your stormwater system. We deliver certified, Auckland-ready drainage that manages runoff, prevents flooding, and keeps your property protected in severe weather.
Frequently Asked Questions
Why is stormwater drainage important?
Proper stormwater drainage prevents flooding, erosion, and property damage by directing rainwater safely away from buildings and hard surfaces.
Do you handle council or Watercare applications?
Yes. AH Drainage manages all compliance paperwork, ensuring your system meets Auckland Council and Watercare requirements.
Can you upgrade existing stormwater systems?
Absolutely. We replace or retrofit outdated systems to improve performance and meet current standards.
Do you provide stormwater solutions for commercial or public projects?
Yes. Our team handles large-scale and high-capacity stormwater systems for developments, roads, and infrastructure projects.
How quickly can you complete a stormwater job?
Timelines depend on project size, but we pride ourselves on fast turnarounds and efficient council coordination. We’ll provide clear timeframes upfront.