Custom Cistern Liners for Reliable Water Storage
A custom-fabricated, food-grade membrane that gives your existing cistern a brand-new watertight interior, for homes, businesses and farms.
- Made-to-fit for round, rectangular and irregular cisterns
- Food-grade, NSF/ANSI/CAN 61 liner options
- Install it yourself or hire a professional
No exact measurements needed. Phone photos are fine.
- 5 years in businessHundreds of custom liners supplied
- NSF/ANSI/CAN 61Food-grade liner material
- 10-year warrantyManufacturer coverage, seams included
- Shipped across CanadaDIY or professional install
Is your cistern losing water?
These are the most common reasons owners call us.
Unexplained water loss
The level keeps dropping and your usage can't explain it.
Visible cracking
Cracks in walls, floor, corners or joints.
Deteriorating concrete
Crumbling, porous or flaking interior surfaces.
Damaged or failing liner
Tears, failed seams, punctures or aged material.
Aging interior surfaces
Old coatings and patches that keep letting go.
A new waterproof interior for the cistern you already have
A cistern liner is a flexible membrane installed inside an existing cistern. It becomes the water-holding barrier, so the original surfaces don't have to hold water anymore. If the structure is still suitable, you keep the cistern and fix the leak.
Liners suit cisterns with water loss, cracking, deteriorating concrete, a damaged existing liner, or aging interior surfaces. Suitability depends on structural condition, shape, access and fittings. A liner does not replace repairs to an unsafe structure.
Read the complete guide to cistern liners
Our food-grade liners meet NSF/ANSI/CAN 61, the North American health-effects standard for materials that touch drinking water. Cistern construction itself is covered by CSA B126. If you drink from your cistern, test the water regularly, as Public Health Ontario recommends.
Choose the liner for your situation
Concrete cistern liners
For porous, cracked or hard-to-maintain concrete cisterns.
Explore concrete liners
Residential cistern liners
For homes, rural properties, cottages and acreages.
Explore residential liners
Replacement cistern liners
For aging, damaged or leaking liners that need to be replaced.
Explore replacement linersFour simple steps
- 01
Measure & photograph
Grab a tape measure and your phone. Basic measurements and clear photos are all we need to start.
- 02
Send your details
Upload everything through our short online form. No paperwork or technical drawings.
- 03
We custom-make your liner
Once details are confirmed, your liner is fabricated to your cistern's dimensions, shape, depth and openings.
- 04
Install your way
Install it yourself, or hire a professional. Installation services are available for Eastern Ontario projects.
What goes into every liner
Food-grade material
Suited to potable water and long-term containment.
Custom-fit design
Fabricated to match your cistern's dimensions and layout.
Durable barrier
A continuous layer between the water and the existing cistern surface.
Flexible construction
Conforms to the cistern's shape for a secure fit.
Sealed construction
Carefully made seams aim for a watertight system.
Long-term performance
Designed to restore and protect aging cisterns.
Frequently asked questions
What is a cistern liner?
A cistern liner is a flexible containment membrane installed inside an existing cistern or water storage tank. It creates a new interior barrier that separates stored water from the original tank surface and provides a dependable water-holding layer.
What does a cistern liner do?
A liner creates a new waterproof containment surface inside the cistern. It can help address water loss associated with cracks, aging concrete, deteriorated surfaces, or an existing liner that has reached the end of its service life.
Why install a liner instead of replacing the cistern?
If the existing cistern structure is still suitable, lining it can be a more practical option than complete replacement. A liner allows you to retain the existing structure while creating a new interior water-containment surface.
Can a cistern liner stop leaks?
A properly designed and installed liner can provide a new watertight barrier inside the cistern. This can be an effective solution when water loss is occurring through cracks, porous surfaces, joints, or other deterioration in the existing cistern.
Can every leaking cistern be lined?
Not necessarily. The cistern must be assessed for structural condition, dimensions, accessibility, configuration, and intended use. A liner is designed to provide water containment, but it is not a substitute for repairing a structurally unsafe cistern.
What types of cisterns can be lined?
Many concrete, masonry, steel, and other compatible water storage cisterns may be suitable for lining. Suitability depends on the condition, shape, access, internal fittings, and intended use of the cistern.
Can old concrete cisterns be lined?
Yes, many older concrete cisterns are good candidates for lining when the underlying structure remains suitable. A liner can isolate the stored water from aging or deteriorated concrete surfaces.
Ready to fix your cistern?
Send us your photos and rough dimensions. We'll tell you honestly whether a liner or coating makes sense.