Water tank sealing in Al Rehab Jeddah
Al Rehab is a large quarter mixing villas, apartment blocks, university buildings and shops. Tanks here handle high pressure from daily consumption and building diversity. Sealing protects water from contamination and leaks and extends tank life in a densely populated and heavily used area.
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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 Rehab
Population density is high, apartment buildings are modern and villas vary in age, with tanks bearing heavy daily consumption pressure. The method is set out in full on what Water tank sealing involves.
Modern buildings and their large shared tanks
Al Rehab has modern apartment blocks with large central tanks. These tanks serve hundreds of units and need regular maintenance and professional lining.
Medium and older villas with multiple tanks
Al Rehab villas are relatively old, some with underground tanks and others on rooftops. Cracks emerge from thermal cycling and heavy use.
Markets and retail shops require high water quality standards
Shops and retailers in Al Rehab need clean water to operate. Their tanks collect more contamination than residential tanks because use is mixed and intensive.
The character of Al Rehab
Mixed district: shops at street level with homes above them
Al Rehab is a mixed quarter combining medium villas, modern apartment buildings and university facilities, with tanks varying widely in size, location and use. Modern buildings need regular maintenance for large central tanks, while villas require individual assessment based on tank condition and location.
What we read before any material is opened
A large district between Al Arbaeen Street and the expressway, containing villas, apartments, university buildings and markets. Bounded by Prince Mohammed bin Abdulaziz Street to the north, Palestine Street to the south and Prince Majid Road to the west.
Cracking in the wall
Concrete in large tanks erodes from constant pressure, acidic water and heavy use, with cracks appearing on lower walls and floors.
The floor to wall joint
Multiple pipe joints in central tanks provide leak and contamination paths if not sealed and insulated.
The condition of the old lining
Soil moisture beneath underground tanks enters through cracks and pores, especially in older villas.
Sediment and scale
Algae and bacteria grow rapidly in large tanks because temperature, light and moisture suit microbial growth.
The pipe entries
Slow leaks from central tanks cause water pooling underground and weaken building foundations and external walls.
The hatch and the vent
Contaminated water shows different colours or foul smell and taste, indicating metal and organic matter entering from outside the tank.
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 Aziziyah Sub-Municipality
The Al Aziziyah sub municipality takes in the established heart of northern Jeddah, from the Al Hamra corniche on the Red Sea to Al Rehab east of King Abdullah Road. Its buildings date back decades, mostly mid rise apartment blocks over shops and closely packed restaurants along Makarona Road, Tahliah Street and Palestine Street, alongside villas and hotel towers near the shore. Sea humidity is high in the western districts, plumbing and drainage in the older blocks are ageing, and food outlets, hospitals and irrigated gardens are everywhere, conditions that favour cockroaches, ants, mosquitoes and rodents throughout the year.
Questions about this district
Why do shared tanks in Al Rehab leak more?
Large tanks bear greater pressure and cracks grow fast. Large surface area means higher risk of leaks from multiple points.
Does lining a large building tank cover all floors and walls?
Yes, all surfaces contacting water must be lined. Unlined areas become contamination and leak sources.
Do villas with underground tanks need special treatment?
Yes, underground tanks face soil pressure and moisture stress more. Sealing must be stronger and repair must include external walls.
Do shops and markets need extra sterilisation after lining?
Yes, full tank sterilisation is needed after lining and additional filters may be necessary for commercial use.
How often do large tanks need maintenance?
Large tanks need annual inspection at minimum and immediate repair of any cracks or leaks.
Does high pressure from use damage new lining?
Excess pressure may stress the lining. Proper standards and regular pressure control preserve lining quality.
How much does water tank sealing in Al Rehab 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 Rehab.
Nearby districts we cover
Other services in Al Rehab
Other services we provide to residents of Al Rehab.
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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 Rehab? Tell us what you saw and we will tell you what it needs
We reach Al Rehab at a time we agree, and you get the full cost before we start.