Water tank sealing in Al Wahah Jeddah
Al Wahah is a relatively new residential district east of Haramain Road, an upscale area with villas, retail and public gardens. Buildings are modern and tanks were built to modern standards. Leaks here typically come from fine cracks due to slow ground movement and hydrostatic pressure.
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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 Wahah
Buildings were constructed over the last 20 to 25 years and have tanks built to relatively modern standards. The method is set out in full on Water tank sealing in detail.
Luxury villas with deep buried tanks
Villas in Al Wahah are large and modern with tanks buried deep beneath ground floors. Hydrostatic pressure from high water table causes constant wall stress. Fine cracks appear after 10 years of use.
Modern apartment buildings with centralised shared tanks
Apartment buildings here are recent and use unified central tank systems. Cracks appear at joints between large tanks and pipelines and pump points from constant vibration.
Constant hydrostatic pressure from high water table
The water table in Al Wahah is relatively high and hydrostatic pressure is constant year-round. Buried tanks face severe stress on lower walls and floors.
Al Wahah on the map
Al Wahah sits about 3.5 km from Al Nakhil and about 4 km from Al Shuruq.
Open in Google MapsWhat we read before any material is opened
A relatively modern residential zone east of Haramain Road and north of Palestine Road, laid out on a regular plan with villas, apartment buildings and commercial spines, containing Al Wahah Park, neighbourhood mosques and private schools.
Cracking in the wall
Fine cracks in buried tanks appear after 10 years from constant hydrostatic pressure.
The floor to wall joint
Pipe joints and pump connections in modern tanks suffer constant vibration from pump operation.
The condition of the old lining
Floors of buried tanks need careful inspection for wear from constant water pressure on the lower surface.
Sediment and scale
The high water table in Al Wahah creates constant hydrostatic pressure on tank walls year-round.
The pipe entries
Modern paint on new tanks resists moisture but structural cracks penetrate it and cause slow leaks.
The hatch and the vent
Leak signs from buried tanks appear on interior floors and walls of the house long after cracks begin.
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 Wahah
Villa district: private plots, gardens and a boundary wall to every house
Modern upscale villas mean tanks are completely buried. Treatment requires full excavation, draining and pumping water outside the villa, requiring coordination with the property owner.
Questions about this district
Why do new villas in Al Wahah need tank sealing?
Although villas are recent, hydrostatic pressure from the high water table causes fine cracks after years of use.
Are luxury villas less prone to tank leaks than ordinary ones?
No. Ground and hydrostatic pressure affect all villas equally regardless of size or cost.
What drives the cost of sealing a modern villa tank?
Tank depth below grade, size and number of cracks. Deep large tanks take longer and cost more.
Can fine cracks in a tank be repaired without removing it?
No. Fine cracks need deep cleaning, sanding and new sealant. The tank must be fully drained and the interior accessed.
Do villas built on clean sandy soil need less sealing?
No. Clean soil does not reduce hydrostatic pressure. Water table and seasonal moisture stress tanks equally.
How do we tell if leaking comes from the tank or the pipes?
We inspect the tank fully after draining. Cracks in walls or floor mean tank leaks; cracks in joints or pipes mean they leak.
How much does water tank sealing in Al Wahah 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 Wahah.
Nearby districts we cover
Other services in Al Wahah
Other services we provide to residents of Al Wahah.
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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 Wahah? Tell us what you saw and we will tell you what it needs
We reach Al Wahah at a time we agree, and you get the full cost before we start.