Pond Liner & Underlayment

Pond Liner in Calgary

A pond liner creates a stable, watertight base for outdoor water features in Calgary. It stops leaks, blocks root intrusion, and supports the structure of your pond through freeze–thaw cycles. Many homeowners search for pond liner Calgary, EPDM pond liner, flexible pond membrane, koi pond liner, and backyard pond supplies when planning a new water feature.

What a Pond Liner Does

A pond liner forms a sealed barrier between the water and the soil. It prevents erosion and keeps the pond’s shape consistent. It also supports pumps, filters, edging stones, and aquatic plants. Our 45-mil liner offers strong puncture resistance and stays flexible in Calgary’s changing temperatures. It works well for koi ponds, garden ponds, water features, and stream channels.

Choosing the Right Pond Liner

We carry a single reliable option: a 45-mil pond liner available in multiple wide sizes. This thickness provides long-term durability and handles deep ponds, rock features, and irregular shapes. The wide-format sizes give you more coverage with fewer seams and an easier installation.

• 45-mil thickness for long service life
• Wide-format sheets for large ponds and broad layouts
• Flexible material for curves, shelves, and custom shapes

This liner suits koi ponds, backyard ponds, garden water features, and landscape designs that need a strong, flexible membrane.

Installation Basics

Install the liner on clean, level soil with an underlay to reduce punctures. Smooth out folds and secure the edges with rock or soil. The 45-mil material adapts well to shelves, edging, and deeper sections. Once set, it supports pumps, plant areas, and rock borders without shifting.

Easy Maintenance

A quality liner keeps soil and debris out of the pond. This helps limit algae and reduces routine cleaning. You can drain or adjust the pond when needed without damaging the liner. The 45-mil membrane stays stable even after weather changes.

Pond Liner Sizes for Calgary Yards

• Wide sheets for large landscape ponds
• Medium widths for standard backyard ponds
• Compact sections for small garden ponds

These options cover most Calgary projects involving koi ponds, natural garden ponds, flexible pond membranes, and backyard water features.

In-Store Pickup in Calgary

Our pond liners are available for in-store pickup only. Choose the width and length you need, place your order, and pick up your liner in Calgary when it’s ready.

Frequently Asked Questions

Q. Is the 45-mil pond liner fish safe?

A: Yes. The 45-mil liner is fish safe and suitable for koi ponds and other stocked ponds. It does not leach harmful chemicals and provides a stable base for any liner for fish pond setup.

Q. Can I use this pond liner for a garden pond or backyard water feature?

A: The 45-mil membrane works well as a pond liner for pond builds of any size. It handles curved shapes, planting shelves, rock edges, and deeper sections common in garden and backyard ponds.

Q. Is a 45-mil thickness strong enough for larger ponds?

A: Yes. The 45-mil material provides strong puncture resistance and flexibility. It works for large landscape ponds, koi ponds, and fish pond designs that need a long-lasting liner.

Q. Can I use this liner for a fish pond with plants and rock features?

A: The liner supports plant shelves, edging stones, and rock borders without tearing. Its flexibility makes it a good choice for a lined fish pond where both plants and fish are part of the design.

Q. How should I prepare the ground before installing the pond liner?

A: Clear the base of sharp stones and roots. Level the soil, then add an underlay to protect the liner. This prevents punctures and helps the pond hold its shape.

Q. Does the liner handle Calgary’s cold winters?

A: The 45-mil material stays flexible during freeze–thaw cycles. It avoids cracking and keeps the pond sealed through seasonal temperature changes.

Can this liner be used for a fish-safe water feature with moving water?

Yes. The liner works with pumps, waterfalls, stream channels, and recirculating water features. It remains fish safe and stable under flowing water.