Water tank sealing in Rashidiyah Makkah
Rashidiyah is a planned villa quarter in the east of Al Sharai, and tanks sit directly on villa roofs or in the rear yard. Mineral-heavy water from the district borehole and intense summer heat cause rapid concrete cracking and leakage at pipe entries.
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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 Rashidiyah
Villas were built in recent decades and tanks suffer rapid thermal stress and cracking from direct sun exposure and heavy mineral content in groundwater. The method is set out in full on what Water tank sealing involves.
Tanks directly exposed to sun on rooftops
Most tanks stand unshaded on villa roofs. Summer temperatures reach 50°C, causing concrete to expand and contract cyclically. Small cracks develop and widen over months.
Pipe-entry joints and connection points to foundations
Water inlets and outlets need tight seals. Older villas were not sealed properly at these points, and water leaks around the pipes into or out of the tank.
Heavy mineral water accelerates internal corrosion
Groundwater from the district borehole is rich in salt, minerals and lime. Weak linings corrode rapidly from within. Small cracks become weak points faster than in other quarters.
The character of Rashidiyah
Villa district: private plots, gardens and a boundary wall to every house
A villa quarter means each owner maintains the tank directly. Villas have raised roofs and separate rear yards, making tank access easy but leaving the tank fully exposed to sun and heat.
What we read before any material is opened
A planned villa quarter in the east of Al Sharai on a regular grid, bounded to the north by the Makkah-Taif expressway and to the west by King Abdulaziz Sports City. Wadi Mudarraja runs through the district.
Cracking in the wall
Cracks begin at corners and the floor-to-wall joint where walls meet the base, as water pressure concentrates there and thermal expansion causes separation.
The floor to wall joint
Pipe inlets and outlets often lack seals, and water leaks directly around the pipe entry points.
The condition of the old lining
Poor drainage and wall leakage cause moisture around the tank base and erosion of nearby foundations.
Sediment and scale
Internal moisture from vapour and mineral-rich water corrodes the lining faster than in other quarters.
The pipe entries
Weak and aged lining permits algae and bacteria growth, especially during the long summer season.
The hatch and the vent
White deposits and salt stains on the external tank walls signal internal corrosion and active leakage.
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 Sharai Sub-Municipality
Al Sharai is the eastern growth front of Makkah along King Faisal Road and the Taif road. Settled quarters sit beside recently renamed schemes where plots are still vacant and buildings are going up, so construction sites, fill and open excavations lie next to occupied homes. Wadi channels such as Wadi Mudarraja, Wadi Al Sharai and Wadi Al Mughammas carry flash floods after rain and dry out to damp silt, while dust blows off the open hills. Roadside shops, restaurants and warehouses line the Taif road, and to the east the area shades into villages, palm farms and springs.
Questions about this district
Why do tanks crack faster in Rashidiyah than elsewhere?
Direct sun on the roof and extreme heat cause rapid expansion and concrete cracking. Heavy mineral water accelerates internal corrosion.
Does the tank need replacing or is sealing enough?
If cracks are surface-level and the original lining is sound, sealing and lining is enough. If cracks are deep or the lining is failing, a new internal lining may be needed.
Are pipe entries the main cause of leakage?
Often yes. Older villas did not seal pipe openings, and water leaks here before side cracks develop.
Does sealing protect against heavy mineral water?
Sealing and lining protects concrete from internal corrosion. Regular tank cleaning slows lime and salt buildup.
How long does emptying and full treatment take?
Villas typically have one or two small tanks. Emptying, repair and sterilisation takes 3 to 5 hours depending on tank size.
Must water be cut off to the house during repair?
Yes, the tank must be completely empty. Water trucks can supply the property while repair is underway.
How much does water tank sealing in Rashidiyah 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 Rashidiyah.
Other services in Rashidiyah
Other services we provide to residents of Rashidiyah.
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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 Rashidiyah? Tell us what you saw and we will tell you what it needs
We reach Rashidiyah at a time we agree, and you get the full cost before we start.