Water tank sealing in Al Malik Fahd Makkah
Al Malik Fahd in western Makkah is a carefully planned development scheme with orderly villas, apartment blocks, parks and King Fahd Mosque. Foundations are sound and construction is modern, but rocky soil beneath the district causes fine cracks in tanks from subsurface pressure. Tanks here need precise sealing because water seeps slowly through hairline cracks in modern concrete structures.
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Potable-rated materials
Linings and disinfectants cleared for drinking water tanks, not general-purpose products.
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You get the downtime first
How many hours the tank is out of service, told before we start rather than after we finish.
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A first-draw flush
We run the first draw off after refilling, and the tank is not handed back until the water runs clear.
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Ground and roof tanks
Villas, apartment blocks and premises that need a written record of each visit.
Why the job is different in Al Malik Fahd
Soil beneath the district is rocky and solid, preventing even building settlement, which creates uneven pressure on tank foundations and hairline cracking in modern concrete. The method is set out in full on our Water tank sealing service.
Pressure from rocky soil beneath the building
The bedrock beneath is hard and irregular, creating localised pressure on tank foundations. This pressure creates small but deep cracks in modern tank walls and floors.
Tight construction and hard concrete
Buildings here are modern and concrete is high quality, but it is brittle and cracks easily under localised pressure. Fine cracks penetrate the whole body and leak water slowly, unnoticed at first.
Separate villas each with its own tank
Each villa has a tank on the roof or underground, and pressure affects each differently. Underground tanks face continuous ground pressure from bedrock and soil.
The character of Al Malik Fahd
Mixed district: shops at street level with homes above them
An orderly planned district with modern villas and apartments means sound foundations and high-grade construction. But difficult rocky soil beneath the surface presses on tanks locally. Sealing must account for hairline cracks and localised pressure from bedrock.
What we read before any material is opened
An orderly planned district in western Makkah where the Jeddah expressway meets the Fourth Ring Road, bordered by Al Hamra, Ar Rusayfah and Al Khalidiyah, with bedrock and hills such as Jabal Umm Jurfan lying beneath the surface.
Cracking in the wall
Hairline cracks form first in corners and joints where stress concentrates, and water seeps out slowly.
The floor to wall joint
Pipe joints are weak in modern tanks because metal and concrete expand at different rates under localised pressure.
The condition of the old lining
Inlet and outlet pipes move slightly with pressure, loosening the seal around the entry point.
Sediment and scale
Moisture from porous rocky soil presses on the tank exterior, increasing hydrostatic pressure inside.
The pipe entries
Cracks spread slowly but steadily under continuous pressure from bedrock beneath the foundation.
The hatch and the vent
Moisture and salt from rocky soil penetrate cracks and weaken concrete from inside.
How we work
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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.
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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.
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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.
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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
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Finding where the water leaves
Carried out drained and dry: cracks, joints, pipe collars and the outer face of the wall.
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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.
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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.
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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.
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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.
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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 Al Shawqiyah Sub-Municipality
Al Shawqiyah sub municipality runs south from the Third Ring Road to the city's edge on the Al Layth road and the Jeddah expressway. Planned districts such as Al Shawqiyah, Al Malik Fahd and Bathaa Quraish have wide streets, villas and apartment blocks, while schemes in Wali Al Ahd are being built out and informal housing in Al Ukayshiyah and Al Zuhur is being cleared. The vegetable market and livestock auction at Souq Al Halaqa, open construction sites, the rocky slopes of Jabal Thawr and sewers still being laid through the southern fringe offer exposed food, shelter and moisture.
Questions about this district
Why do modern tanks in Al Malik Fahd crack despite their newness?
Rocky soil beneath the district presses unevenly on foundations. Modern concrete breaks under this localised pressure regardless of its quality.
Do hairline cracks cause real leaks or are they normal?
Hairline cracks do leak slowly. If not repaired they widen over time with continuous pressure and cause obvious leakage.
Does building quality reduce repair cost?
Yes, new concrete accepts repair better. But work must be precise because cracks are deep and pressure is ongoing.
Is a roof tank more at risk than an underground tank?
A roof tank faces temperature change and drying. An underground tank faces continuous soil pressure and high moisture. Both are at risk but for different reasons.
Does sealing one crack stop the leak or must the whole tank be inspected?
The whole tank must be inspected because localised pressure may cause multiple cracks. Sealing just one will not stop leaks from others.
How long does repair last before new cracks appear?
Pressure is ongoing, but if the tank is properly sealed and joints are reinforced, it may last many years.
How much does water tank sealing in Al Malik Fahd 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 Malik Fahd.
Nearby districts we cover
Other services in Al Malik Fahd
Other services we provide to residents of Al Malik Fahd.
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Water tanks
Water tank cleaning
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Water tanks
Water tank sterilization
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Water tanks
Tank leak repair
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Residential
Cockroach control
Need water tank sealing in Al Malik Fahd? Tell us what you saw and we will tell you what it needs
We reach Al Malik Fahd at a time we agree, and you get the full cost before we start.