Pond Construction in Walton-on-Thames: Koi Ponds & Water Features
Koi ponds, swimming ponds, ornamental ponds and water features across North Surrey, with EPDM-qualified construction from a team that builds the whole garden around them.
What proper pond construction involves
A pond that leaks, silts up or creates ground drainage problems is a pond that wasn't built correctly. Carmen Landscapes designs and builds ponds with the same construction principles applied to every project: correct excavation, proper drainage management around the structure, quality EPDM liner, and the stonework or brickwork that completes it.
Carmen Landscapes is EPDM-qualified, using the rubber liner system that outperforms standard PVC for longevity and flexibility. Combined with Craig Carmen's 21 years of construction experience, this means ponds and water features built to the standard that Surrey gardens deserve. See our project gallery for ponds and water features we've built, and read what homeowners say on our reviews page.
Types of pond and water feature we build
- • Koi ponds with full filtration systems
- • Swimming ponds (natural swimming pools)
- • Ornamental wildlife ponds
- • Formal ponds with stone or brick edging
- • Fountains and cascade water features
- • Self-contained water features and millstones
- • Drystone-walled pond surrounds
- • EPDM-lined ponds and water features
Which areas do you build ponds in?
We're based in Walton-on-Thames and build ponds across North Surrey and the wider Surrey area. Pond construction in Weybridge, Esher, Cobham, Hersham, Shepperton, Sunbury-on-Thames, East Molesey, Hampton, Kingston upon Thames, Leatherhead and Woking. If you're just outside that, ask — we'll tell you straight whether we can get to you.
Frequently Asked Questions
What's the difference between a koi pond and an ornamental pond?
Koi ponds require more sophisticated filtration because koi produce significant waste. They typically need mechanical pre-filtration, biological media and a UV clarifier, plus good circulation. An ornamental wildlife pond has simpler requirements. We can build and specify both.
What is EPDM and why does it matter for ponds?
EPDM (ethylene propylene diene monomer) is a rubber liner material used for high-quality pond and water feature installations. It's more durable and flexible than standard PVC liners and is rated for fish-safe use. Carmen Landscapes is EPDM-qualified.
Do you build swimming ponds?
Yes. Swimming ponds (natural swimming pools) use planted filtration zones instead of chemicals. They're a growing preference among Surrey homeowners who want to swim naturally. We design and build the structure, liner and filtration planting zone.
What happens to a pond in clay soil?
Clay soil can exert pressure on pond walls and affect drainage around the pond. We assess ground conditions before specifying the liner type and structure. This is where construction experience matters — not just installing the liner but engineering the surrounding area properly.
Can you build a fountain or water feature without a full pond?
Yes. Self-contained water features, wall fountains and millstone features are part of our water feature offering alongside full pond builds.
How do you integrate ponds into a wider garden design?
Ponds and water features work best when they're planned as part of the overall garden layout rather than added afterwards. The surrounding stone, paving and planting zones are all considered in the design.
Related Services & Areas
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