This wasn’t a repair or upgrade. This was a dream pond build for a passionate koi enthusiast who wanted a system that would never need upgrading.

The Brief: Build It Once. Build It Right.

Our client, Neil, came to us with a clear vision:

A visual centrepiece for the garden
A high-performance koi system
A setup that wouldn’t need revisiting or upgrading in the future

In short — no compromises. Just our client, Neil’s, dream pond.

Starting From Scratch

The existing pond was removed entirely. It had reached the end of its life and wasn’t worth salvaging.

From day one, everything was built with precision:

Datum levels set
Water level locked in
Filtration heights calculated
Full layout mapped before excavation began

This stage is where most problems are either created or avoided — and we make sure it’s the latter.

Groundworks & Structure

This wasn’t a basic dig-and-line job.

We built a fully reinforced structure designed for long-term stability and performance:

350mm crush base
100mm Type 1 MOT
200mm C30 S3+ concrete base
Reinforced with A142 mesh
Over 500 blocks laid flat for maximum strength

This level of groundwork ensures the pond won’t shift, crack, or cause issues down the line — something you don’t get with standard builds.

Filtration & System Design

This is where the project separates itself.

We designed and installed a high-performance gravity-fed system, built specifically for koi health, water clarity, and ease of maintenance.

Key Features:

2 x 4” pressure bottom drains with swept bends
4” gravity skimmer
Filtreau Excellent Combi Drum 30/40 Low
80w amalgam UV
120lph Medo air system

Circulation & Flow:

2 x 22000 Varios pumps
Bakki shower return system
Pressure return via flange

Heating:

14kW professional heater

Everything is designed to:

Maximise flow
Eliminate dead spots
Maintain high oxygen levels
Future-proof the entire system

No shortcuts. No compromises.

Dedicated Filter House (Built to Match the Garden)

Rather than hiding equipment away, we built a fully integrated filter house.

Designed with a rustic barn conversion look, it features:

Black feather edge cladding
Wienerberger farmhouse brick base

It blends seamlessly into the garden while housing a system that’s built for serious performance.

The Transformation

Over the course of 8 weeks, this site went from a stripped-out space to a fully finished, high-end koi pond installation.

Once the box-welded liner was installed and the pond began filling, everything came together quickly:

Clean, balanced water levels
Smooth circulation
Fully operational filtration system

And then — the real moment:

👉 The koi returning to the water.

Calm, controlled, and thriving in a system built specifically for them.

The Result: A Pond That Won’t Need Upgrading

This isn’t just a pond that looks good on day one.

It’s a long-term investment, built to:

Maintain water quality
Support koi health
Require minimal ongoing intervention
Deliver a standout visual feature

Exactly what was asked for — and delivered.

What’s Next?

This isn’t the end of the project, just a start to a great working relationship.

We’ll be returning to:

Install a new patio area
Develop additional growing-on systems for koi

This is a long-term setup — and we’re continuing to build on it.

Looking for Koi Pond Builders in Norfolk?

If you’re planning a koi pond in Cromer, Norwich, or anywhere across East Anglia, and you want it done properly the first time, we can help.

At ABBCO, we specialise in:

High-end koi pond construction
Custom filtration system design
Full garden-integrated builds
Long-term pond performance

If you’re serious about building a pond that lasts — get in touch.

Premium Koi Pond Build in Cromer, Norfolk: A Full Transformation