Water tank sealing in Al Nuzhah Makkah
Al Nuzhah is a mixed quarter combining apartment buildings, villas, shops and government offices along the old Makkah road. Tanks here face heavy use from residents, workers and visitors, and water travels long distances through buried pipes under old streets. Leaks and cracks appear quickly in heavily-used tanks.
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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 Nuzhah
Tanks here serve buildings with widely different consumption levels, from densely-occupied flats to commercial malls and government branches, meaning constant pressure on capacity and pipe networks. The method is set out in full on how we approach Water tank sealing.
Rooftop tanks face intense heat and direct sun exposure
Most tanks in Al Nuzhah sit directly on building rooftops. Temperatures reach 50 degrees Celsius in summer, causing concrete and metal to expand and contract, creating gradual cracks.
Buried pipes under old streets have poor maintenance records
The old streets in the district sit on unstable surfaces and main pipes are buried in difficult conditions. Leaks from these pipes mean the tank loses water before it reaches users.
High consumption increases internal moisture and pressure on walls
Residential and commercial buildings use large volumes of water. Constant internal moisture weakens the protective layer and speeds corrosion.
The character of Al Nuzhah
Mixed district: shops at street level with homes above them
A mixed quarter means tanks of varied sizes and types: large tanks for apartment blocks and malls, small tanks for villas and shops. Treatment must account for each case individually, and access to rooftop tanks may be limited in large buildings.
What we read before any material is opened
A mixed district at the western edge of Al Utaybiyah sub municipality, bordered by Al Zahra and Ar Rusayfah to the east and the old Makkah road and As Salamah to the north, containing apartments, villas, shops and government offices.
Cracking in the wall
Internal surface inspection detects fine cracks and cavities, especially on surfaces facing direct sun all day.
The floor to wall joint
Inspection of wall-floor joints is critical because water leaks there first before spreading through walls.
The condition of the old lining
Inspection of pipe entries and openings reveals weak points, especially if pipes are old and corroded.
Sediment and scale
Moisture testing by sensor is important: high wall moisture means continuous leaking and breakdown of the protective layer.
The pipe entries
Inspection of areas with high salt and sediment deposits is vital, as salt water speeds corrosion.
The hatch and the vent
Seasonal crack patterns are monitored by observing expansion and contraction cycles, most visible in sun-exposed tanks.
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 Utaybiyah Sub-Municipality
Al Utaybiyah sub municipality covers the old districts north of the Grand Mosque: the hillside quarters of Al Hajun, Al Utaybiyah and Al Bayban, Al Zahir and Al Shuhada at the northern entrance, and the newer Al Zahra, Al Diyafah and An Nuzhah westward. Its building stock is among the oldest in Makkah, stone houses on the hills, packed apartment blocks and sewers decades old, threaded with crowded markets like the Utaybiyah souq and furnished flats that fill in the pilgrim seasons. Wadi Al Zahir and Wadi Al Tanim carry storm water through it, and industrial workshops line Hajj Street.
Questions about this district
Do small cracks in a tank require full sealing?
If the crack is only surface-level, we may repair it with specialist filler. But if it penetrates the tank wall or approaches it, full sealing is the only solution.
Why do rooftop tanks in Al Nuzhah crack faster than in other areas?
Intense heat and direct sun on the roof cause continuous expansion and contraction. Old concrete cannot withstand this cycle.
Should pipe repair come before tank sealing?
Yes. If pipes are leaking, the tank loses water even after internal sealing.
Is tank water safe to drink after sealing and sterilisation?
Yes. After emptying, cleaning and sealing, we apply chemical sterilisation then flush the tank before refilling.
How deep must a crack be to require rebuilding parts of the tank?
If a crack penetrates more than a quarter of the wall thickness or runs through corner joints, structural repair may be needed before sealing.
Does tank sealing stop leaks from the joint between pipes and walls?
Yes. We repair these joints and pipe entries before sealing, making them completely watertight.
How much does water tank sealing in Al Nuzhah 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 Nuzhah.
Nearby districts we cover
Other services in Al Nuzhah
Other services we provide to residents of Al Nuzhah.
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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 Nuzhah? Tell us what you saw and we will tell you what it needs
We reach Al Nuzhah at a time we agree, and you get the full cost before we start.