Water tank sealing in Al Jamiah Jeddah
Al Jamiah is densely packed with apartment buildings and commercial shops, and tanks here face heavy daily use pressure from residents, restaurants and hotels. Hot water from air conditioning units and high humidity cause rapid cracking in roof and underground tanks.
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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 Jamiah
Buildings here date back decades, and old tanks show visible signs of leakage and wear, especially during hot and humid seasons. The method is set out in full on how we approach Water tank sealing.
Residential blocks with multiple roof tanks
Each apartment building has two or more tanks on the roof, and some floors have additional smaller tanks. Old tanks sit under direct sun and extreme heat.
Restaurants and shops demand continuous water flow
Many restaurants, cafes and retail outlets consume heavy water throughout the day. High pressure on tanks causes leaks at wall-to-floor joints and internal seams.
Humidity and salt weaken concrete
Damp air and sea salt penetrate tank walls. Old concrete cracks easily and pipes corrode both inside and out.
The character of Al Jamiah
Apartment district: residential blocks, repeated floors and shared entrances
The district is crowded with old residential blocks where tanks face heavy use pressure from residents and commercial shops. Sealing must withstand intense heat, continuous water pressure and damp salty air, requiring strong materials and thick protective coats.
What we read before any material is opened
A crowded older district north of Old Makkah Road, with dense residential blocks and shops, restaurants and small markets above ground. It functions as a vibrant commercial hub around Al Jamiah Roundabout and Andalusia Hospital junction.
Cracking in the wall
Hairline cracks on tank walls come from repeated pressure and must be widened and filled before sealing begins.
The floor to wall joint
Wall-to-floor joints always leak because they are the weakest point, where humidity and salt concentrate.
The condition of the old lining
Supply and outlet pipes pass through tank walls leaving gaps around the pipes where water seeps through.
Sediment and scale
Continuous humidity from steam and water leaves white salt deposits on walls and weakens internal layers.
The pipe entries
Rust on pipes and steel inside the tank shows ongoing corrosion and contaminated water with metals.
The hatch and the vent
Algae and bacterial growth on tank walls indicates light leaks or contaminants entering, and new sealing prevents this entirely.
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 Jamiah Sub-Municipality
Al Jamiah sub municipality spans the older south of Jeddah. Planned districts such as Al Fayha, Al Thaghr and Madain Al Fahd sit beside crowded popular quarters like the Nazlahs and Al Quraiyat, and beside cleared or clearing land in Ghulail, Petromin and Al Thaalibah awaiting redevelopment. Apartment buildings stand close together above dense runs of shops and restaurants along Old Makkah Road and Prince Majid Road. Drainage in the popular quarters is ageing, humid air drifts in from the port and refinery side to the west, and the flat low lying ground holds rainwater in narrow streets.
Questions about this district
Why do tanks in Al Jamiah leak faster than in other quarters?
Population density and heavy daily use increase tank pressure. Heat, humidity and salt weaken concrete faster here.
Does the small tank in a flat need separate sealing from the building tank?
Yes, each tank needs separate inspection and sealing. Small tanks often leak first because they are older and weaker.
Does contaminated water from leaks actually pose health risks?
Yes. Leaks allow dirt, microbes and rust to enter. Water becomes unsafe to drink.
Does sealing one leak stop the whole problem?
Not necessarily. If multiple cracks exist or the walls are generally weak, new leaks may appear.
How do you inspect the tank before sealing begins?
We empty it completely and inspect walls, floor and seams. We identify every crack, leak and damaged pipe carefully.
Does the concrete type in old buildings affect the sealing method?
Yes greatly. Old concrete is very weak and moisture has penetrated deep. We need deeper treatment and stronger sealing.
How much does water tank sealing in Al Jamiah 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 Jamiah.
Nearby districts we cover
Other services in Al Jamiah
Other services we provide to residents of Al Jamiah.
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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 Jamiah? Tell us what you saw and we will tell you what it needs
We reach Al Jamiah at a time we agree, and you get the full cost before we start.