GRP / FRP Water Tanks in the Philippines
Sectional fiberglass panel water tanks for potable water, fire reserve and rainwater — supplied and installed by Goldenbolay in Metro Manila, Bulacan and across the Philippines. 10-year warranty with 3 years of preventive maintenance.
Sectional Fiberglass Tanks, Built to Fit Your Site
A GRP (glass-reinforced plastic) water tank — also called an FRP or fiberglass panel tank — is assembled from standard pressed panels that are bolted and sealed together on site. Because the panels are light and compact, they can be carried up stairs or service lifts and built into a tank of almost any length, width and height.
GRP does not rust or corrode, keeps its strength for many years, and is lighter than steel or concrete — which is why it is a popular choice for rooftop water tanks on condominiums, offices, schools, hospitals, malls and factories in the Philippines.
Goldenbolay supplies Korean-made GRP panels that have passed seismic testing, and our team handles the full job: sizing, shop drawing, delivery, installation, leak test and turnover.
Benefits of GRP / FRP Panel Tanks
Goldenbolay GRP Tank Specifications
Typical specifications — final details are confirmed in your quotation and shop drawing.
| Item | Goldenbolay GRP / FRP Tank |
|---|---|
| Panel material | GRP / FRP (glass-reinforced plastic) pressed panels, Korean-made |
| Seismic | Panels passed seismic testing / certification (test reports available on request) |
| Assembly | Bolted and sealed on site — no welding, no crane needed for most rooftops |
| Size & capacity | Built to your required length × width × height and storage volume |
| Uses | Potable / domestic water, fire-water reserve, rainwater harvesting, process water |
| Accessories | Manhole, ladder, vent, inlet / outlet / overflow / drain connections and level indicator — as specified per project |
| Base | Steel or concrete support base designed to suit your site |
| Included service | Shop drawing, delivery, installation, leak test and turnover |
| Warranty | 10 years, with 3 years preventive maintenance (yearly checking, cleaning and maintenance) |
GRP Tank Sizes & Capacities
Capacity (liters) = length × width × height (m) × 1,000. Common examples:
Actual usable volume is slightly less than the gross volume because of the freeboard (air space at the top). Need a different size? Modular panels let us build to your exact dimensions.
| Tank size (L × W × H) | Volume | Capacity |
|---|---|---|
| 2 m × 2 m × 2 m | 8 m³ | 8,000 L |
| 3 m × 2 m × 2 m | 12 m³ | 12,000 L |
| 4 m × 3 m × 2 m | 24 m³ | 24,000 L |
| 4 m × 4 m × 3 m | 48 m³ | 48,000 L |
| 5 m × 4 m × 3 m | 60 m³ | 60,000 L |
| 6 m × 4 m × 3 m | 72 m³ | 72,000 L |
| 6 m × 5 m × 4 m | 120 m³ | 120,000 L |
| 8 m × 6 m × 4 m | 192 m³ | 192,000 L |
| 10 m × 8 m × 4 m | 320 m³ | 320,000 L |
From Drawing to Turnover
- Send your planUpload your tank plan or construction drawing with your required capacity and site location.
- Quotation & sizingOur engineer sizes the tank and sends a detailed quotation — fast.
- Shop drawingPanel layout, base and connections are drawn for your approval.
- Delivery & assemblyPanels are delivered and hand-carried to the site, then bolted and sealed.
- Leak testThe tank is filled and checked before handover.
- Turnover & maintenance10-year warranty and 3 years of yearly preventive maintenance.
GRP vs Stainless Steel vs Concrete Tanks
| GRP / FRP | SS304 Stainless | Concrete | |
|---|---|---|---|
| Rust / corrosion | Does not rust | Highly resistant | Can crack and leak over time |
| Weight on roof | Light | Light to medium | Very heavy |
| Installation | Bolted on site, no crane | Bolted on site, no crane | Formwork and curing on site |
| Best for | Rooftops, fire reserve, rainwater, potable water | Potable water in condos, hospitals, malls | Large underground cisterns |
| Budget | Economical | Higher | Varies, slow to build |
| Expand / repair | Replace single panels | Replace single panels | Difficult |
Not sure which material fits? See our SS304 tanks or ask our engineer — we'll recommend the right panel for your water use.
Got a GRP Tank Quotation Already?
Send us the other supplier's BOQ or quotation. We will match it or give you a lower offer for the same specifications — with Korean seismic-certified panels, a 10-year warranty and 3 years of maintenance.
Real Projects, Real Results
Goldenbolay has supplied and installed modular water tanks for major clients in the Philippines, including Coca-Cola, BDO, Suntrust, Robinsons and Mang Inasal, plus high-rise, government and hospital projects.
GRP / FRP Water Tank Questions
What is a GRP water tank?
A GRP (glass-reinforced plastic) water tank — also called an FRP or fiberglass tank — is built from pressed fiberglass panels that are bolted and sealed together on site. Because it is modular, the tank can be made in almost any size and assembled in places a one-piece tank cannot reach, such as rooftops and basements.
Is GRP the same as FRP?
Yes. GRP (glass-reinforced plastic) and FRP (fiber-reinforced plastic) are two names for the same fiberglass panel material. In the Philippines both names are used for sectional fiberglass water tanks.
Can a GRP tank be used for drinking water?
Yes. GRP panel tanks are widely used for potable (drinking) water, as well as fire-water reserve, rainwater harvesting and process water. Tell us the intended use so we can specify the right panels, sealant and accessories.
How much does a GRP water tank cost in the Philippines?
The price depends mainly on the tank size and capacity, panel height, frame and base requirements, accessories (ladders, manholes, level indicators), and site conditions such as rooftop access. Send us your drawing and required capacity for an accurate quotation. If you already have a quotation from another supplier, send it to us — we will match it or give a lower offer for the same specifications.
How long does a GRP tank last?
A properly installed and maintained GRP tank lasts for many years because fiberglass does not rust. Goldenbolay GRP tanks come with a 10-year warranty and 3 years of preventive maintenance (yearly checking, cleaning and maintenance).
Can you replace an old concrete or steel tank with GRP?
Yes. We remove or bypass the old tank and install a new modular GRP tank in the same area. The panels are carried in by stairs or service lifts, so most rooftop replacements need no crane.
What size GRP tank do I need?
Capacity in liters = length × width × height (in meters) × 1,000. For example, a 4 m × 3 m × 2 m tank holds about 24,000 liters. Our engineer will size the tank based on your water demand, available area and building requirements.
Get Your GRP Tank Quotation
Upload your tank plan or construction drawing and our engineering team will send you a quotation. Prefer to chat? Message us on Viber or Messenger.