Water tank sealing in Al Samir Jeddah
Al Samir is a relatively modern planned district east of the Haramain expressway, containing villas and apartment buildings side by side along Al Ajwad Street and Ankara Street. Tanks here vary widely in size and type, from deep villa tanks buried underground to rooftop tanks in apartment blocks. Moisture and cracks appear due to the swing between daytime and night temperatures.
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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 Samir
Tanks in the district range widely in age and maintenance history, and owners report intermittent leaks that worsen during seasons of climatic transition. The method is set out in full on how we approach Water tank sealing.
Deep underground villa tanks beneath foundations
Villas in Al Samir have tanks buried deep under foundations, exposed to soil pressure and groundwater. Cracks start from the tank floor where hydrostatic pressure is greatest.
Rooftop tanks in apartment buildings exposed to sun
Apartment buildings have exposed rooftop tanks in direct sunlight and wind. Daily thermal expansion and contraction cause cracks in beams and at corners.
Pipes and connections in hot arid climate
The desert environment around Al Samir causes rapid corrosion of pipes and flanges. Original installation quality varies because the district is relatively new and built by different contractors.
The character of Al Samir
Mixed district: shops at street level with homes above them
Al Samir is mixed-use, meaning tanks are highly varied: villas with deep buried tanks and apartments with rooftop tanks. Treatment must account for each type separately. Villas need lining that resists hydrostatic pressure while apartments need lining that tolerates thermal cycling.
What we read before any material is opened
A mixed-use planned residential district east of the Haramain expressway, combining villas and apartment buildings on regular wide streets, with a medical complex and popular market and walkway at main nodes.
Cracking in the wall
Cracks start at corners and side walls where groundwater pressure bears against the structure.
The floor to wall joint
Leaks from pipes and flanges are common because original installation quality varies and thermal movement weakens connections.
The condition of the old lining
Moisture around the tank signals hydrostatic pressure from below in underground tanks.
Sediment and scale
Fine cracks appear first on the internal surface at the waterline and often result from structural movement.
The pipe entries
Relatively new tanks may be poorly designed or built, and lining fixes the problem without full rebuilding.
The hatch and the vent
The hot climate speeds algae and bacterial growth, so sterilization after lining is essential.
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 Briman Sub-Municipality
Briman sub-municipality sits east of the Haramain expressway on Jeddah's north eastern edge. Its older quarters are planned grids of villas and walk-up flats, while the outer districts are new subdivisions still being built out. Seasonal wadis such as Wadi Umm Hablain and Wadi Al Asla cross the area, groundwater runs high in places, and drainage networks in the newer districts are incomplete, so soil around foundations stays damp. Vacant plots, live building sites and constant dust give crawling insects and rodents easy routes into homes, and the food outlets along the main arteries keep them supplied.
Questions about this district
Why does a villa tank leak if it sits underground and should be protected?
Hydrostatic pressure from groundwater and saturated soil pushes against the tank walls. Small cracks widen over time under continuous pressure from below.
Does tank lining solve the problem if the crack goes deep into the concrete itself?
Lining seals from inside. But if the crack penetrates deep into the concrete matrix, structural repair may be needed before lining.
What is the difference between sealing a villa tank and an apartment block rooftop tank?
Villa tanks underground need lining that resists hydrostatic pressure. Rooftop tanks need lining that resists direct sun and repeated thermal expansion.
Does the hot arid climate speed up leaking?
Yes. Daily thermal cycling causes cracks faster. Exposed rooftop tanks fail sooner than buried tanks.
How long does a full tank seal take?
It depends on tank size and condition. A medium tank may take two to three days because we empty, clean, let it dry fully, and apply lining.
Do we need to cut off water to the villa during sealing?
Yes. We empty the tank completely and close all valves. Water returns after sterilization and full inspection.
How much does water tank sealing in Al Samir 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 Samir.
Nearby districts we cover
Other services in Al Samir
Other services we provide to residents of Al Samir.
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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 Samir? Tell us what you saw and we will tell you what it needs
We reach Al Samir at a time we agree, and you get the full cost before we start.