Water tank waterproofing in Quwaizah, Jeddah

Quwaizah is an old district in east Jeddah administered under Umm Al Salm sub municipality, facing multiple valleys most notably Wadi Al Qaws, which was the first area hit by Jeddah's significant 2009 flood event.

Call now WhatsApp

Interior surfaces fully sealed
Food-safe coating materials
Cracks and gaps filled first
Inspected before handover

Why tank waterproofing protects your water supply

An old district in east Jeddah under Umm Al Salm sub municipality management, facing multiple valleys including Wadi Al Qaws with a history of severe flooding, within the hills and valley belt east of the city.

Seal before a leak develops

Wadi Al Qaws floods fiercely and contaminated water reaches tanks rapidly. Waterproofing stops this dangerous water entering and protects against sudden catastrophic contamination.
Repair an existing slow drip

Cleaning existing flood sediment, algae and mud is essential before waterproofing because these deposits can reduce how well sealing material adheres to aged concrete tank walls.
Keep drinking water free of debris

Thermal expansion may be limited by high moisture, but existing cracks in old concrete allow flood water to seep in. Waterproofing closes these pathways.
Reduce maintenance over time

Resealing may be necessary every five to seven years in Quwaizah because repeated floods, high constant humidity and ageing tanks all stress the protective coating.

Everything included in the service

Tank drained of water
Walls scrubbed with brush
Surfaces dried before coating
Cracks and gaps sealed
Primer coat brushed on
Waterproofing coat brushed on
Second coat applied over first
Coating inspected before leaving

How the waterproofing job is carried out

Booking and access arrangement
Draining, cleaning, and drying
Sealing and coating
Inspection and handover

What changes about water tank waterproofing in Quwaizah

Wadi Al Qaws historically floods forcefully and contaminated water reaches exposed tank roofs with remarkable speed. For the whole method, see water tank waterproofing in detail.

The first reason
Wadi Al Qaws floods dangerously fast and hard

Wadi Al Qaws adjoining the district is known for sudden powerful floods. When heavy rain falls, water rises rapidly and reaches house roofs, and an unsealed tank fills immediately with dirty water.
The second reason
Old tanks in the district are more vulnerable to cracks

Quwaizah is an old neighbourhood and its tanks may be ageing. Cracks in aged concrete widen over years, and floods exploit these weak points to enter tanks.
The third reason
Constant wadi humidity increases algae growth and water spoilage

The wadi's high moisture raises algae growth in tanks even without flooding. This algae clouds water and makes it unusable, independent of flood risk.

Quwaizah on the map

Quwaizah sits about 2 km from Al Rughamah and about 2.5 km from Al Muntazahat.

Open in Google Maps

What the tank looks like after

A sealed, smooth interior surface

The coating bonds to the concrete or fibreglass and fills any hairline cracks that were present.

No active leaks or seeping

Gaps that were allowing water to seep through the walls or base are filled and covered.

Food-safe lining throughout

Every applied material is rated safe for contact with drinking water.

What our customers said

«شغلهم ما شاء الله، أنصح الجميع بالتعامل معهم. عن تجربة وثقة.»

Hesham ZayanAugust 2026 · Review on Google Maps

«أفضل شركة تنظيف بالبخار. أسعارهم ممتازة وشغلهم مرة كويس.»

Bashar Al-MushaikhiJuly 2026 · Review on Google Maps

«خدمة ممتازة.»

Abdullah Al-GhamdiAugust 2026 · Review on Google Maps

«ممتازين.»

Muhammad EshraJuly 2026 · Review on Google Maps

Read the reviews on Google

Some of our work

Illustrative photographs. Our own job photographs go here as soon as the client approves them.

Landmarks of Quwaizah

Quwaizah is administered from Umm Al Salm Sub Municipality and overlooks Wadi Al Qaws to the east, with Mareekh Mountains to the south. Access to homes runs close to the wadi's defining geographical features.

Wadi Al Qaws
Mareekh Mountains
Umm Al Salm Sub-Municipality
Umm Al Muminin Khadija Mosque

Nearby districts we cover

Al Rughamah Al Muntazahat Kinanah

Questions worth asking first

Does Wadi Al Qaws flood powerfully and reach tanks in Quwaizah?

Yes, Wadi Al Qaws is known for sudden powerful floods. Contaminated flood water reaches house rooftops quickly, and a sealed tank is the only protection against rapid entry.

How often must a tank be checked in an old district next to a dangerous wadi?

Inspection every three months is recommended, especially before the rainy season. After waterproofing, inspections can reduce but regular monitoring remains essential due to flood risk.

Can an old tank in an ageing district be saved from flooding by waterproofing?

Yes, waterproofing stops flood water entering. However, old cracks must be sealed first, and the tank must be cleaned of any sediment from previous floods.

Does fine dust and stone from Quwaizah's wadi easily enter an unsealed tank?

Wadi dust carries fine stone particles that enter tanks readily. Waterproofing protects against this dust whether it arrives via floods or carried on the wind.

Will constant wadi humidity damage newly applied waterproofing materials?

Modern waterproofing resists high moisture. However, ensuring the tank is completely dry before waterproofing is very important in a damp valley environment.

What should we arrange before the waterproofing team arrives near the dangerous wadi?

Fully drain the tank and clean all flood sediment, mud and algae from inside with a brush and water. Ventilation for several hours is essential because moisture is persistently high here.

How much does water tank waterproofing in Quwaizah cost?

It is set after we see the job, because the price follows the kind of work, the size of the space, its condition and the time and materials it needs. Send a photo and a short description on WhatsApp and we will give you an estimate before we reach Quwaizah.