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Ponds & Waterfalls

Garden ponds, waterfalls, and water feature construction and repair

Garden ponds and waterfalls create attractive focal points and promote wildlife. Types include wildlife ponds, fish ponds (koi), formal ponds, and container ponds. Waterfalls can be natural rock cascades, formal spillways, or pondless designs.

Common Damage

1. Liner Issues

  • Punctured or torn liners from roots, stones, or animals
  • Cracked rigid preformed ponds from frost or ground movement

2. Subsidence

  • Uneven water levels
  • Edges collapsing into the pond

3. Waterfall Problems

  • Leaks in the waterfall stream
  • Rocks shifting and disrupting flow
  • Water splashing out due to poor design

4. Pump & Filtration Failure

  • Pump burnout or clogging
  • Blocked filters reducing water quality
  • Pipe leaks or disconnections

5. Environmental Issues

  • Algae overgrowth (green water)
  • Poor oxygen levels harming fish
  • Sludge and debris build-up
  • Invasive plant overgrowth

6. Weather Damage

  • Ice expansion damaging liners and pipes

Repairs

minor Repairs

  • Remove debris (leaves, sludge) regularly
  • Clean filters and check pump function
  • Monitor water levels for leaks
  • Control algae with plants, shading, and treatments

moderate Repairs

  • Patch small liner holes with repair kits
  • Reposition rocks and reseal waterfall leaks
  • Clean or replace clogged pumps
  • Repair or replace pipework

major Repairs

  • Replace liner if damage is extensive
  • Rebuild edges with proper support
  • Upgrade filtration system
  • Full pond reconstruction

New Installation

When Replacement Is Needed

  • Creating a garden water feature
  • Adding wildlife habitat
  • Old pond beyond repair

Installation Steps

  1. Plan Design

    • Choose pond type (wildlife, fish, formal, container)
  2. Excavate

    • Dig to required depth and shape
  3. Install Base & Underlay

    • Proper base and underlay to prevent punctures
  4. Fit Liner

    • Flexible EPDM/PVC liner or preformed shell
  5. Install Pump & Filtration

    • Pump, filter, and UV clarifier if required
  6. Add Edging

    • Stone, paving, or planting around edges
  7. Build Waterfall

    • Rock cascade, spillway, or pondless design if required

Lifespan

EPDM liner
20–40 years
Pump
5–10 years
Preformed pond
15–25 years

Warning Signs

  • Water level dropping unexpectedly
  • Green or cloudy water
  • Pump not running or noisy
  • Edges crumbling into water
  • Fish showing signs of stress

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