Water tank sealing in Harat Al Amir Jeddah
Harat Al Amir lies at the heart of small Thuwal town, containing low residential houses and old overhead tanks exposed to direct sun and coastal humidity. The tanks here are small and sit tight against old buildings, and cracks start at pipe entries and at corners where the tank floor meets walls. The seal must be robust because the quarter is old and maintenance is infrequent.
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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 Harat Al Amir
Buildings in the quarter are old and their overhead tanks show clear signs of decay and cracking, especially during summer when tanks heat up and expand. The method is set out in full on what Water tank sealing involves.
Small overhead tanks tight against old house walls
Tanks here are small and pressed directly against building walls, with very narrow pipe entries. Cracks always start at the pipe entry point and at floor-to-wall corners.
Coastal humidity and salt eat the surface
Thuwal sits on the coast and humidity is high year-round. Salt accumulates on the tank surface from the air. The concrete surface crumbles quickly and old paint peels.
Maintenance is sparse and tanks are rarely cleaned
Local residents seldom clean tanks regularly and silt and mud pile up on the bottom. Stagnant water accelerates internal surface decay.
The character of Harat Al Amir
Mixed district: shops at street level with homes above them
An old residential quarter means tanks are small and built tight into houses. Simple popular construction means little space around tanks to move, and sealing must be done carefully to avoid damaging the house structure itself.
What we read before any material is opened
A residential quarter within the coastal town of Thuwal north of Jeddah, gathering small popular houses and local shops along its inner streets, near the municipality building, mosque and schools serving the whole town.
Cracking in the wall
Incoming and outgoing pipe entries are the first failure point, water seeping around the pipe through fine cracks.
The floor to wall joint
Corners where the tank floor meets walls crack under pressure and seasonal movement, especially in summer heat.
The condition of the old lining
Old concrete surface is eaten by salt and humidity and must be scraped away completely to reach sound material before sealing.
Sediment and scale
External walls face direct sun and heat, causing continuous expansion and contraction and spreading cracks.
The pipe entries
Hard water deposits and silt build up on the floor and hide the true surface; they must be removed before sealing begins.
The hatch and the vent
Cracking starts small then spreads fast because the tank fills and empties daily and water pressure works on the cracks.
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 Thuwal Sub-Municipality
Thuwal sub municipality is a small fishing town on the Red Sea coast at the far northern edge of Jeddah governorate. Its old quarters are closely packed popular and mud built houses on narrow streets, with newer low rise concrete homes from the town's development programme beside them. Sea humidity stays high all year, the fishing harbour and the corniche form its seafront, water arrives by tanker so household tanks are everywhere, and the town sits on Wadi Thuwal, ringed by open ground and by the irrigated green campus of King Abdullah University of Science and Technology.
Questions about this district
Does a small tank need different sealing than a large one?
Yes. Small tanks expand and contract faster and cracks appear more quickly. The seal must be flexible and tight at all corners.
Why does cracking always start at the pipe entry?
The pipe entry is a weak point where stress concentrates. Water flows in and out, causing constant movement and expansion around the hole.
Does coastal salt damage the quality of the seal?
Yes greatly. Salt reacts with concrete and weakens it. The seal must protect against both salt and moisture together.
How many times must the tank be cleaned before sealing?
Once, if thorough. We remove all silt and mud from floor and walls before starting the seal.
Do old tanks in the quarter need complete surface scraping?
Usually yes. Old surfaces are crumbling and peeling. Full scraping ensures the new seal adheres strongly.
Does sealing prevent leaks from corners as well as from pipe holes?
Yes, but corners need special care. We place a filler compound in the corner first before applying the main seal.
How much does water tank sealing in Harat Al Amir 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 Harat Al Amir.
Nearby districts we cover
Other services in Harat Al Amir
Other services we provide to residents of Harat Al Amir.
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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 Harat Al Amir? Tell us what you saw and we will tell you what it needs
We reach Harat Al Amir at a time we agree, and you get the full cost before we start.