Service 04

Groundworks
& Ponds

We shape the land before the build begins — and create outdoor water features built to last through every season.

What We Do

The work that happens before everything else.


Every construction project starts at ground level — and at IGE Group, groundworks are something we take as seriously as the structures that follow. The right site preparation prevents problems that are expensive to fix later: poor drainage, unstable ground, inadequate access, and uneven levels that throw everything else off.

Our groundworks service covers site clearance, topsoil stripping, earthmoving, levelling, and drainage installation. Whether it's preparing a plot for a new build, creating a flat area for a cabin or hardstanding, or reshaping a garden, we plan it properly and execute it cleanly.

We also specialise in custom pond installation — one of the most transformative things you can do to a garden. We design and build ponds of any size and shape, from a simple reflective feature pond to a large koi pond with properly engineered depth profiles, liner, edging, and provision for filtration and aeration equipment.

Pond building is skilled work that requires understanding of water management, liner installation, edge detailing, and long-term maintenance. We've built ponds that have been running cleanly for years — because we do it properly the first time.

Quick Facts

Groundworks & Ponds

Groundworks Timescale
1 day – 2 weeks depending on scope
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Pond Sizes
Any size — we've built from 2m to 15m+
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Pond Depth
Custom — up to 2m+ for koi ponds
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Liner Types
EPDM rubber (preferred) or butyl
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Filtration & Pumps
Provision installed; equipment advised
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Edging Options
Natural stone, cobbles, turf, timber
What's Included

Ground preparation done right

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Site Clearance

Vegetation, scrub and debris removed. Topsoil stripped and set aside or removed from site. Area left clear and ready for the next stage.

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Earthmoving & Levelling

Ground shaped to the required levels and profiles using compact machinery. Spoil redistributed on site or removed. Finished surface compacted and checked.

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Drainage Installation

French drains, soakaway pits, or channel drainage installed where needed. Good drainage is what keeps groundworks stable and the site dry long-term.

Pond Excavation

Pond excavated to agreed depth and profile. Shelves for marginal planting formed where specified. Spoil removed from site cleanly.

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Liner & Underlay Installation

Geotextile underlay fitted to protect the liner from stones. EPDM rubber liner installed and fitted tightly to the excavation profile. All folds dressed and secured.

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Edging & Finishing

Pond edges finished with your choice of material — natural stone, cobbles, sleepers, or turf overhang. Pump and filter pipework provision installed before filling.

How It Works

Our Process

01
Consultation & Site Visit

We walk the site with you, discuss the project scope, and assess access and ground conditions before quoting.

02
Design & Agree

Pond shape, size, depth, edging and any special features agreed. Groundworks scope and drainage requirements confirmed.

03
Clearance & Excavation

Site cleared, ground shaped or pond excavated to the agreed profile. Spoil removed or managed on site.

04
Liner & Services

Underlay and liner installed for ponds. Drainage runs laid for groundworks. Everything checked before the next stage.

05
Finishing & Handover

Edging dressed, site cleared, and project handed over ready for planting or landscaping. We walk you through everything on the day.

Questions

Frequently Asked

What size pond can you build?

We've built everything from small ornamental feature ponds of around 2m x 1.5m to large koi ponds over 15m in length. Size is largely a matter of budget and the space available. We don't have a minimum or maximum — we discuss what works for your garden and what you want the pond to do before we quote.

How deep should a pond be for fish?

For fish to overwinter safely in the UK, the pond needs a minimum deep zone of at least 60–90cm, and ideally 120cm or more. Koi, which are larger fish, need a deep section of at least 1.2m–1.5m to thrive — and we typically recommend 1.8m or deeper for a serious koi pond to maintain water temperature stability and allow adequate swimming room.

Shallow areas (shelf zones) of 20–30cm are included to support marginal planting and provide a gradual entry point for wildlife.

Do you supply and install the pump and filter?

We install the pipework and conduit provision for pump and filter equipment as part of the build, but we don't directly supply or install the mechanical equipment itself. We're happy to advise on what specification of pump and filter is appropriate for your pond size and fish load, and we can recommend suppliers. The equipment is then installed by you or a specialist once the pond is filled.

What liner do you use and how long does it last?

We use EPDM rubber liner as our standard, typically 1.0mm or 1.14mm thickness depending on pond size. EPDM is UV-stable, flexible even in cold temperatures, fish-safe, and durable — quality EPDM liners carry manufacturer warranties of 20–25 years and often last considerably longer with proper installation.

We always fit a geotextile underlay beneath the liner to protect it from any stones or sharp material in the excavation that could cause punctures over time.

Get Started

Planning a pond or groundworks project?

Get in touch and we'll arrange a free site visit to discuss what's possible.

Request a Free Quote