Al Raya
Tank cleaning & waterproofing: The wall of an empty tank, half bare concrete and half coated in grey waterproofing

Tank cleaning & waterproofing A clean tank with sealed walls

Your tank is leaking or its inner lining has failed? Cleaning comes first, then waterproofing over a surface that is ready.

What the service includes

What tank cleaning and waterproofing includes

  • Fully emptying the tank and removing sediment and residue from its walls and base
  • Rinsing the inner walls until the surface is clean and ready for inspection
  • Checking the tank walls, base and joints for cracks or damage to the inner lining
  • Treating cracks and joints and preparing the surface before any waterproofing material is applied
  • Applying the right waterproofing layer to the walls, base, edges and corners
  • Giving special attention to the joints between walls and base, which are often the most vulnerable points
How we work

From your call to a sealed tank

  1. 1

    Describe what you see

    Call or message us on WhatsApp and tell us the tank type, where it sits and what you have noticed, whether a leak or damage to the inner surface.

  2. 2

    Emptying and cleaning the tank

    The tank is fully emptied, then the sediment and residue clinging to its walls and base are removed, and it is rinsed until the surfaces are clean and dry.

  3. 3

    Repairing cracks and preparing the surface

    Cracks and joints are treated before any coat is applied, because a waterproofing material does not bond to a cracked or wet surface. A good layer starts with a surface that is ready.

  4. 4

    Applying the waterproofing layer

    The right waterproofing material for the tank, such as epoxy or bitumen, is applied to the walls, the base and the corner joints, with careful attention to edges and seams.

Why Al Raya

Why combine cleaning and waterproofing in one job

  • Waterproofing over a dirty surface separates quickly
  • We treat cracks before any coat is applied
  • We check all the tank walls while cleaning
  • We use waterproofing materials suited to water tanks
  • We take your request by phone call or WhatsApp message
Our work

Our portfolio

  • A roof covered in a smooth white insulation layer with a small dome behind it
  • A hole in a broken wall exposing pipes and wires
  • Two workers on a large roof insulated in white
  • A roof insulated in white under a clear sky
  • A roof covered in white insulation with air conditioners and buildings around it
  • A building roof covered in white insulation
Reviews

What our customers say

  • ★★★★★

    شركه ممتاز شغلهم كويس ويعطيهم العافيه

  • ★★★★★

    ممتاز والخدمة ان شاء الله تكون قد التوقعات

  • ★★★★★

    شغلهم ميه ميه يشكرو عليه

Reviews are shown as the customers wrote them, in Arabic.

Questions

Questions about Tank cleaning & waterproofing

Cleaning is a necessary step before waterproofing. The material needs a clean, dry surface to bond to. Any sediment, algae or residue between the wall and the coat causes it to separate quickly. Waterproofing alone without prior cleaning does not solve the problem.

Epoxy is a resin that hardens after application and forms a rigid layer that resists water and wear; it is often used to line indoor water tanks. Bitumen is a flexible rubber-like material or comes as a rolled membrane fixed to the surface, and suits different conditions. The choice depends on the tank type and the state of its walls.

It is not advisable. A crack in a tank wall moves with heat expansion and contraction, and any coat applied over it without treatment will crack again at the same spot. Treating cracks and joints before applying the waterproofing is the step that keeps the layer in place over time.

Yes, full emptying is necessary for both steps. The walls and base cannot be cleaned properly with water still inside, and a waterproofing material cannot be applied to a wet surface. After the coating is applied, the surface needs enough time to dry before the tank is refilled.

Tell us the tank type, ground or overhead, and whether it is concrete or plastic, and what you have noticed: a leak from a wall or the base, a crack in the inner lining, or an odour in the water. The clearer the details, the better we can judge what the tank needs before we arrive.

Sunset over villa roofs and palm trees

Describe your tank to us

Call or WhatsApp us and tell us what you see in your tank.

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