Water tank sealing in Al Jamiah Makkah
Al Jamiah is a densely packed apartment district with pilgrim hotels, residential blocks and small commercial centres. Tanks here sit on roofs and lower floors, facing high pressure from hot and cold water. The quarter is crowded with residents and seasonal pilgrims, and tanks run at constant high 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 Jamiah
Tanks in Al Jamiah run at very high pressure because they serve tall buildings and hotels crowded with pilgrims during Hajj season. The method is set out in full on the full Water tank sealing page.
High pressure from hot and cold water cycling
Buildings and hotels use very large volumes of hot and cold water. Hot water tanks face higher temperatures and greater pressure, and cold tanks face rapid pressure swings.
Heavy use and mineral-laden water
Hotels and blocks consume vast quantities daily. Water carries more minerals and sediment settles fast in tanks.
Mixed internal and external tanks on the same building
Some buildings have rooftop tanks and basement tanks both in use. Pressure and temperature differences between tanks create additional wall stress.
The character of Al Jamiah
Apartment district: residential blocks, repeated floors and shared entrances
Al Jamiah is a densely packed apartment and hotel district, and tanks here run at very high pressures and in fluctuating temperatures. Sealing must be strong, smooth and flexible to withstand continuous expansion and heavy pressure.
What we read before any material is opened
An eastern district beside Al Aziziyah and Al Mursalat, named for the former Umm Al Qura University site in Al Aziziyah. High apartment blocks and pilgrim hotels cluster very densely, cut through by King Khalid Road and Al Masjid Al Haram Road.
Cracking in the wall
The floor bears very high water pressure from tall buildings and heavy use, with cracks appearing quickly at the base.
The floor to wall joint
Pipe entries face high pressure and rapid pressure swings, and leaks occur at joints and connections fast.
The condition of the old lining
Walls face high water pressure from inside and out, and hot water weakens interior coating.
Sediment and scale
Moisture and hot water heat raise tank temperature, and condensation may show on exterior walls.
The pipe entries
Cracks start at interior tank corners where pressure and heat are highest.
The hatch and the vent
Leaks occur at lower walls, corners and joints, and seeping water may create dampness in voids beneath 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 (Makkah) Sub-Municipality
Al Aziziyah sub municipality runs from the Bin Dawood markets to the Al Hada road and carries pilgrim traffic to Mina. Hotel towers and furnished apartment blocks fill and empty with the Hajj and Ramadan seasons, and the kitchens, restaurants and markets along Al Masjid Al Haram Road and King Abdulaziz Road leave food waste at every peak. Southwards the fabric loosens into villas and planned streets in An Naseem and Al Awali, then Al Abidiyah's campus and the old farms of Al Husayniyah, where Wadi Uranah holds water after rain and farm enclosures shelter rodents and reptiles.
Questions about this district
Does Al Jamiah's high pressure cause leaks faster than other areas?
Yes. Constant high pressure opens small cracks much faster. Hotel tanks may leak within one or two years.
Why do hot water tanks leak more than cold?
Hot water weakens seal materials faster. Heat opens fine cracks and accelerates coating breakdown.
Do mineral deposits affect seal quality?
Yes. Deposits pile up in the tank and may temporarily plug small holes. But they can create localized high pressure and open new cracks.
How do we treat mixed-use tanks on the same building?
We inspect each tank for its use. Hot tanks may need stronger seal, cold tanks may need protection against moisture and condensation.
How often do hotel tanks in Al Jamiah need inspection?
They may need checks every 6 months to a year, and re-sealing every two years due to high pressure and heavy use.
Do Al Jamiah tanks need different sealing than quiet residential areas?
Yes. They need stronger, more flexible seal to handle continuous expansion and compression from high pressure and heavy use.
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.