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FLEXSTONE Authorized Installer

in Calgary, Alberta

At Caldek Sundeck Systems, we professionally install Flexstone Sundeck Systems with many colours available.


Flexstone membranes are without a doubt the most durable sundeck coatings on the market today.
The CCMC approved coatings are stunning, versatile, seamless, flexible and will outlast any competitor’s product.

First, the base coat is 100% solvent-free (water catalyzed). This property allows it to be applied over existing coatings,other urethanes can not do this because the solvents will dissolve the membrane below. This feature allows building and homeowners to apply the product over old vinyl, fiberglass, or torch-on membranes; keeping roof and deck debris out of our landfills. Secondly, the uv stability and reflective nature of the finish coats save on building energy costs. This means that air conditioning units run for a fraction of the time during warmer months and the seamless insulation properties of the product hold heat in during the colder months.


Designed, tested & approved for Canada’s harshest climates


A CCMC approved roof membrane that is 100% waterproof

Traffic Resistant

Tough enough to withstand heavy vehicular traffic, so your sundeck is safe

Seamless & Attractive

Flexstone is available in a variety of stunning finishes

Colours and Options

System S – Standard Colour
Standard HD Exterior Waterproofing System 80 Mils

Common Applications:
– Sundecks
– Flat Roofs
– Patio Decks
– Balcony Decks
– Roof Decks
– Walkways

100% waterproof base coat installed over substrate (concrete, plywood or existing membrane) topped with back-rolled silica sand and Flexstone’s one-part aliphatic colour coat (UV Stable).


System X – Textured Stone
Luxurious HD Exterior Waterproofing System 100 Mils

Common Applications:
– Sundecks
– Flat Roofs
– Patio Decks
– Balcony Decks
– Roof Decks
– Walkways

100% waterproof solvent-free base coat installed over the substrate. Aromatic colour coat rolled atop of base – decorative acrylic flakes broadcasted into the wet top coat. The final coat is a 1 part UV stable urethane clear coat.


What are our customers saying?

  • 9/10 Review on - We had a tear in our third storey decking which happened to be over two bedrooms. Because of this and possible water damage we were put on priority to finish the job ASAP. Of course weather in Calgary (summer 2016) wasn't exactly cooperative, but Caldek did the under deck repairs, put on a temporary patch and replaced the Duradek as soon as the weather cleared up. Cost seemed a bit high, but overall I was happy with their work and the results!

    Lori from Calgary
  • 9/10 Review on - Dealt with Marc in the initial stages, very professional, good to deal with and seemed knowledgeable (their competition wanted 100% payment upfront, Marc was much more reasonable to deal with). Spencer and Rick came to do the install, and put a long day in to get everything wrapped up in the one day. The installation was done very well with great attention to detail. They identified one problem that required some extra labour, which I authorized up to a certain amount, and the extra charge came in roughly half of what was authorized. I would do business with them again.

    Scott from Calgary
  • 10/10 Review on - "All work was finished on time. Any small items were attended to immediately. The installers were very professional and coordinating with Brian in the main office was very efficient. Brian contacted us upon completion of the project to see if there were any remaining issues to be looked after. Very satisfied with the workmanship and quality of the products used."





QUOTE INFORMATION: Once you have submitted your quote question, a Caldek representative will contact you to set a date and time for your on-site free estimate.   All of our estimators are highly experienced with many years of project management and design.  Thank you for your interest in Caldek Sundeck Systems.

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