A technician applying a lining coat to the inner wall of an emptied water tank
What our clients rate us

Water tank sealing in Al Sawari Jeddah

Al Sawari is a recently built northern district with owner-occupied villas and apartment blocks lying between King Saud Road and Prince Abdulmajeed Road. Tanks here are relatively new but daily temperature swings crack the lining rapidly. Long pipe runs and complex networks increase failure points.

  • Potable-rated materials

    Linings and disinfectants cleared for drinking water tanks, not general-purpose products.

  • You get the downtime first

    How many hours the tank is out of service, told before we start rather than after we finish.

  • A first-draw flush

    We run the first draw off after refilling, and the tank is not handed back until the water runs clear.

  • Ground and roof tanks

    Villas, apartment blocks and premises that need a written record of each visit.

Why the job is different in Al Sawari

Villas and apartment buildings here were built within the last 10-15 years and tanks were installed then, so fine cracks are now appearing from continuous use and daily thermal expansion. The method is set out in full on our Water tank sealing service.

The first reason

Owner-occupied villas have large rooftop tanks

Most owner villas in Al Sawari have one large tank mounted on the roof. Daily temperature swings of 50 degrees in direct sun to 20 degrees at night crack the lining.

The second reason

Apartment buildings have central tanks and complex distribution networks

Apartment blocks have large central tanks, either buried or rooftop, with long pipe networks serving each unit. Multiple connections and long runs multiply weak points.

The third reason

Medium-age tanks now need routine maintenance

Most tanks in the district are 10-15 years old and linings are beginning to show fine cracks. Routine maintenance now is necessary before problems grow.

Landmarks of Al Sawari

Access to Al Sawari runs via King Saud Road and Prince Abdulmajeed Road. The district is defined by Aabir Al Qarat Street running through it, with Taybah to the east, Al Firdaws to the south and Al Yaqut and Al Zumurrud to the west.

  • King Saud Road
  • Prince Abdulmajeed Road
  • Aabir Al Qarat Street
  • Al Sawari Park
  • Abdullah Al Sudais Mosque
  • Al Sawari Health Centre
Before treatment

What we read before any material is opened

A recently built northern district of owner-occupied villas and apartment buildings, lying between King Saud Road and Prince Abdulmajeed Road with Aabir Al Qarat Street crossing it, next to Taybah to the east, Al Firdaws to the south and Al Yaqut and Al Zumurrud to the west.

A fine crack running through a concrete wall

Cracking in the wall

External surface inspection reveals fine cracks, distortion and colour change from direct sun exposure.

The junction of a concrete floor and wall inside an empty tank

The floor to wall joint

Floor-to-wall joint inspection reveals cracks from thermal expansion and lining stress cycles.

A coating flaking away from a concrete surface

The condition of the old lining

Pipe entry inspection reveals leaks from loosened connections, oxide build-up and rust from continuous water pressure.

Limescale deposits inside a water pipe

Sediment and scale

Moisture and seepage checks on external walls and soil around buried tanks.

Water pipes passing through a concrete wall

The pipe entries

Internal lining inspection reveals cracks, deposits, cloudiness and colour change in the coating.

A metal cover over a water tank opening

The hatch and the vent

Water quality testing reveals metallic taste, odd odour, deposits and cloudiness.

How we work

  1. 1

    Inspect with the tank empty

    We drain it and read the surface dry: whether the water leaves through a crack, a joint or a pipe collar, and what the outer face of the wall and the ceiling below are telling us. A level test with the valves closed separates a leaking tank from leaking pipework.

  2. 2

    Clean and prepare the substrate

    Sediment out, a high pressure wash, the loose old lining and the weak surface layer of the concrete taken back, then dried. The material grips sound substrate and nothing else.

  3. 3

    Make the cracks and joints good

    Cracks are chased out and filled with a repair mortar, a cove is formed where the floor meets the wall, and every pipe collar is treated on its own.

  4. 4

    Lining, fill test, sterilisation

    Successive coats, each run across the one beneath it, on the face the water touches. Then a full cure, a fill with the level watched, and sterilisation with the first fill run to waste before the tank returns to use.

What water tank sealing includes

  • A technician inspecting with a flashlight

    Finding where the water leaves

    Carried out drained and dry: cracks, joints, pipe collars and the outer face of the wall.

  • A metal floor drain

    Draining and sediment removal

    The last of the water and the settled layer on the floor come out, because a lining does not stick over sediment.

  • A gloved hand applying bait into a joint

    Cracks and joints made good

    The crack opened and filled, a cove formed at the floor to wall junction, and each pipe entry worked separately.

  • A spray nozzle in close detail

    Lining coats on the water face

    More than one coat, each crossing the one below, in material made for drinking water tanks rather than roof waterproofing.

  • A clean kitchen counter after treatment

    Curing, fill test and sterilisation

    The material is left to cure, the tank is filled and the level watched, then sterilised and the first fill run to waste. How long the cure takes follows the material and the weather, and we tell you before the date so you can plan around the supply.

  • The visit report being written on a clipboard

    A follow-up level check

    We come back once it is in service to read the level and check the outer face, because any remaining loss shows up then rather than on the day of the work.

What is different about Dhahban Sub-Municipality

Dhahban sub municipality is the northern coastal strip of Jeddah, running from the north bank of Sharm Obhur up to the old village of Dhahban and Salman Bay. Its districts are recently built, with owner occupied villas and apartments, beach resorts and chalets on the shore, and land subdivisions still being developed. Nearness to the sea keeps humidity high all year, irrigated lawns in villas, resorts and district parks hold water, Wadi Obhur and the vacant plots between buildings give rodents and reptiles shelter, and the old fishing village of Dhahban gives the far north a rural edge.

Questions about this district

Why do cracks appear in relatively new tanks in Al Sawari?

Tanks have experienced 10-15 years of daily thermal cycling. Large temperature swings between day and night create stress on the lining.

Is annual inspection enough, or should it be more frequent?

Annual inspection is better to catch fine cracks before they become large problems. Bi-annual checks may miss early stage damage.

What causes leaks from pipe connections in apartment buildings?

Long networks and continuous water pressure combined with daily thermal stress loosen connections. Daily vibration from use makes it worse.

Do villas and apartment blocks need different sealing approaches in Al Sawari?

Yes. Villas have a single simple tank, while apartments have complex networks. Apartments need full-network inspection, not just the tank.

How do we know the internal lining is starting to fail?

Water may show metallic taste or odd smell. Internal inspection reveals cracks, deposits and colour change in the lining.

Is a buried tank better than a rooftop tank in a residential area?

Each has trade-offs. Buried tanks stay cooler but are harder to access, while rooftop tanks are accessible but face more heat and thermal stress.

How much does water tank sealing in Al Sawari cost?

It is set after the inspection, because the price follows the type of infestation, the size of the space, how far it has spread and the number of visits it needs. Send a photo and a description on WhatsApp and we will give you an estimate before we reach Al Sawari.

Nearby districts we cover

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Need water tank sealing in Al Sawari? Tell us what you saw and we will tell you what it needs

We reach Al Sawari at a time we agree, and you get the full cost before we start.

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