Water tank sealing in Al Ajwad Jeddah
Al Ajwad is a planned residential quarter in north-eastern Jeddah with villas and mid-rise apartment buildings and shop frontages on Al Ajwad Street. Tanks here suffer cracking and lining failure from hard water and constant pressure. Resealing a tank stops leaks and protects the building from internal moisture damage.
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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 Ajwad
Buildings here are relatively modern but tanks face repeated leak problems due to hard water quality and high network pressure. The method is set out in full on what Water tank sealing involves.
Tanks mounted on apartment building roofs
Mid-rise buildings have tanks fixed directly to roofs and exposed to intense solar heat. Concrete linings crack from daily and seasonal expansion and contraction.
Villas with private pump systems
Villas in the district have ground and elevated tanks connected to electric pumps. High pressure from pumps accelerates lining failure, especially around pipe entry points.
Hard water leaves mineral deposits
Jeddah water is hard and leaves white salt layers on tank walls. These deposits mask small cracks temporarily, then collapse suddenly, opening pathways for seepage.
Al Ajwad on the map
Al Ajwad sits about 2 km from Al Manar and about 2.5 km from Al Samir.
Open in Google MapsWhat we read before any material is opened
A mixed planned quarter in north-eastern Jeddah between the Haramain expressway and Al Simt and Al Manar districts, combining villas with residential apartment buildings and commercial frontages.
Cracking in the wall
Internal lining inspection reveals fine cracks and salt deposits from hard water adhering to walls and floor.
The floor to wall joint
Base inspection checks for settlement or horizontal cracking in concrete from pressure and solar heat.
The condition of the old lining
Joint and corner inspection confirms the floor-wall seams and column junctions, the weakest points in concrete tanks.
Sediment and scale
Water quality inspection assesses hardness and suspended minerals that accelerate lining degradation.
The pipe entries
Pipe entry and exit inspection checks mounting and isolation, as vibration and pressure cause seepage there.
The hatch and the vent
Pump and electrical system inspection measures the pressure generated, as high pressure speeds lining failure.
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.
The character of Al Ajwad
Mixed district: shops at street level with homes above them
A mixed district of villas and apartment buildings means tanks vary in size, type and age. Villas have private ground and elevated tanks, while buildings have large rooftop tanks. Treatment must account for each building type, the pressure regime and water quality differences.
Questions about this district
Why does the villa tank only leak from the bottom corner?
The floor-to-wall corner is the weakest point because concrete cannot bend there. Water finds the weakest spot and leaks through.
Does internal tank cleaning stop the leak?
No, cleaning only removes deposits. If the lining is cracked, seepage continues once the tank refills.
How often does a tank need resealing?
A well-sealed tank lasts 10 to 15 years. But with hard water and high pressure, resealing may be needed sooner.
Does a fibreglass tank need different sealing than concrete?
Yes, fibreglass tanks do not need internal sealing the same way. But leaks from joints and edges need special treatment.
What is the difference between crack repair and full sealing?
Crack repair is a spot fix for small fissures. Full sealing means rebuilding the entire lining and is better for older tanks.
Does leaking result from poor original construction?
It may result from weak building, but usually the cause is age, constant pressure and thermal expansion.
How much does water tank sealing in Al Ajwad 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 Ajwad.
Nearby districts we cover
Other services in Al Ajwad
Other services we provide to residents of Al Ajwad.
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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 Ajwad? Tell us what you saw and we will tell you what it needs
We reach Al Ajwad at a time we agree, and you get the full cost before we start.