GRP Underground Water Tanks
Our underground water tanks deliver exceptional strength, corrosion resistance and long-term performance for residential, commercial and industrial projects across the UAE.

Product Overview
Atlas Al Sharq’s GRP underground tanks are designed for safe, long-lasting storage of water and chemicals below ground level. We offer underground water tanks in a wide range of sizes—from smaller units to large-scale storage—so you can specify the right size: e.g., 1,000 gallon, 2,000 gallon or 10,000 gallon underground water tanks for your site.
Variants include underground concrete water tanks, FRP/GRP underground water storage tanks, underground poly water tanks, underground PVC water tanks for specialized applications.
Why Choose Underground Water Tanks?
- Installed below ground level, our underground water tanks save above-ground space and integrate neatly into landscaping or site layout.
- Built from Glass-reinforced plastic (GRP) for superior durability and corrosion resistance—ideal for underground water storage tanks, potable water, wastewater or chemical applications.
- Seamless, leak-proof construction ensures long service life and minimal maintenance.
- GRP (Glass Reinforced Plastic) material outperforms traditional concrete in corrosion control and installation flexibility.
- Ideal for underground water storage tanks for sale with customisation in size and design.
- Available for potable water (underground potable water tank) or large industrial storage (large underground water storage tanks) applications.
- Compared with overhead tanks, our underground vs overhead water tanks guidance shows the value of below-ground systems for environmental, structural and aesthetic reasons.
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Key Features
- High-strength, corrosion-resistant GRP material: Built to withstand the elements and soil conditions typical in UAE.
- Seamless and leak-proof design: Minimises maintenance and risk.
- UV-protected, non-reactive with contents: Suitable for potable water and sensitive storage.
- Custom sizes, shapes and fittings: Tailored to project needs—whether you need standard models or heavy-duty large underground water storage tanks.
- Standards compliance: Manufactured under BS EN, ASTM and ISO standards—quality assured.
Technical Specifications of GRP Underground Water Tanks
| Specification | Details |
| Material | Glass Reinforced Plastic (GRP) |
| Application | Underground water tank, underground water storage tanks (for potable, wastewater, chemical) |
| Sizes | Offerings include 1,000 gallon, 2,000 gallon, 10,000 gallon and beyond—large underground water storage tanks available upon request |
| Other materials available | concrete, poly, PVC—(underground concrete water tanks, underground poly water tanks, underground PVC water tank) |
| Pricing & used options | We offer underground water tanks prices on request; contact us if you’re looking at used underground water tanks for sale |
Frequently Asked Questions?
What is the warranty on your underground water tanks?
All our GRP tanks come with manufacturer-backed warranties ranging from 1 to 10 years depending on size and customisation.
Can I customise the size or design of my tank?
Absolutely. We offer full customisation on dimensions, shapes, fittings and installation. (Related: underground water tank sizes, large underground water storage tanks)
How long does delivery and installation take?
Standard models may be delivered within days; custom builds typically take 1-3 weeks including site installation and testing.
How do I decide between an underground or overhead tank?
Consider site layout, aesthetics, load-bearing soil, water quality, maintenance access and regulatory requirements. See our comparison: underground vs overhead water tanks.
What’s the cost?
Contact us for a quote. Factors include size, material (GRP, concrete, poly, PVC), installation complexity, fittings and site access. (See: underground water tanks prices)
Ready to secure your reliable underground water storage solution?
hoose the best material (GRP, concrete, poly or PVC) and schedule installation at your UAE site.