There is no single list price for a sectional water tank: each price is built from the material, capacity and proportions, insulation, fittings, steel skid, site, freight and installation. Send us eight project details and we will size and price the tank for you.
Contents
- Why sectional tanks have no fixed price list
- The 8 factors that set the price
- GRP, galvanized or stainless steel: how material changes the cost
- Capacity and proportions: same volume, different panel count
- Insulation, partitions and fittings
- Skid, site, freight and installation
- What to send for an accurate quote
- How to compare a low quote
- Frequently Asked Questions
Why sectional tanks have no fixed price list
A sectional (modular) water tank is bolted together on site from standard factory-made panels, so each one is designed around a specific project. Aquasan builds them in GRP, hot-dip galvanized steel and stainless steel to the size and capacity required (catalogue pp. 3–4). Panel count, skid, connections and labour change from job to job, so a single price per cubic metre rarely reflects what you will pay.
This guide gives no prices in any currency. For a project price, use our quote form.
The 8 factors that set the price
Eight factors set the price of a sectional water tank, each covered in the Aquatank Product Catalogue 2026:
| Factor | Effect on price | Catalogue |
|---|---|---|
| 1. Material | Raw material, panel size and production process differ. | p. 4 |
| 2. Capacity and proportions | Compact shapes need less panel area; taller tanks need heavier skids. | pp. 8, 13 |
| 3. Thermal insulation | If specified, 25 mm polyurethane foam and a protective cover are added to the GRP panels. | pp. 5, 12 |
| 4. Partitioned tank | An extra partition panel, but one tank instead of two. | p. 13 |
| 5. Fittings | Ladders, manhole, air vent and flanges; connection sizes grow with capacity. | pp. 10, 13 |
| 6. Skid and base | Skid sized by tank height; concrete base built on site. | pp. 10, 13 |
| 7. Location and freight | Indoors, rooftop or outdoors; access width and distance. | pp. 4, 23 |
| 8. Installation | On-site assembly, testing and commissioning. | p. 18 |
GRP, galvanized or stainless steel: how material changes the cost
Material is one of the main price drivers: the choice sets the panel's raw material, size and production process at once (catalogue p. 4).
- GRP water tank price depends on panel area, height and insulation. Panels are 1,000 × 1,000 mm, hot-pressed in moulds heated to 150 °C, and tanks run from 1.0 to 5.0 m high (catalogue pp. 5, 8). See GRP sectional water tanks.
- Galvanized steel tanks, made from ST 37 hot-dip galvanized sheet, are described in the catalogue as a "high strength, economical solution" (p. 4). For drinking water, look at GRP or stainless steel instead. See galvanized sectional tanks.
- Stainless steel tank cost also depends on the grade, AISI 304 or 316 L (p. 14); steel tanks use 1,080 × 1,080 mm panels (p. 4), and 316 L contains molybdenum and is generally the more expensive raw material. See stainless steel sectional tanks, or compare all three in our GRP vs stainless vs galvanized guide.
Capacity and proportions: same volume, different panel count
For the same capacity, tank proportions change the panel count and therefore the price. Volume is width × length × height (1 m³ of water weighs about one tonne); panel area is floor, roof and walls combined. The table is for tanks built from 1,000 × 1,000 mm GRP panels:
| Size (W × L × H) | Volume | Panel area | Panel area per m³ |
|---|---|---|---|
| 10 × 1 × 1.0 m | 10 m³ | 42 m² | 4.2 m² |
| 5 × 2 × 1.0 m | 10 m³ | 34 m² | 3.4 m² |
| 2 × 2 × 2.5 m | 10 m³ | 28 m² | 2.8 m² |
| 4 × 4 × 2.5 m | 40 m³ | 72 m² | 1.8 m² |
| 5 × 5 × 4.0 m | 100 m³ | 130 m² | 1.3 m² |
This is a geometry calculation, not a price list; 1 m² equals one full GRP panel. Volumes are gross; usable volume depends on the overflow level.
A long, low 10 m³ tank needs 50% more panel area than a compact one (42 m² versus 28 m²), and panel area per m³ falls as tanks grow, so larger tanks usually cost less per m³. Taller is not always cheaper, though: skids get heavier with height (catalogue p. 13), you need at least 500 mm clearance to the ceiling (p. 9) and GRP tanks stop at 5.0 m (p. 8). To size your tank, see our water tank sizing guide and our guide to sectional tank sizes.
Insulation, partitions and fittings
Insulation, partition panels and fittings are priced as separate items.
- Thermal insulation: for very hot or very cold regions, GRP panels can be insulated with 25 mm polyurethane foam between the panel and a protective cover, which prevents condensation on the outside (catalogue pp. 5, 12). A compact shape then saves even more.
- Partitioned tank: drinking water and fire water can share one GRP tank, split by a partition panel (p. 13). Separate tanks need a 1 m maintenance gap between them, so on the same footprint two 2 × 1.5 × 2 m tanks hold 12 tonnes, while one 2 × 4 × 2 m partitioned tank holds 16 tonnes.
- Fittings: the catalogue lists a manhole cover, air vent, hot-dip galvanized external ladder, internal ladder, drain panel and inlet, outlet, overflow and drain flanges for GRP tanks (p. 10); connection sizes grow with capacity (p. 13). Ask separately for anything not on the list, such as a level indicator.
Skid, site, freight and installation
The total price covers more than the tank itself.
- Steel skid: bolted hot-dip galvanized profiles with no welding; on GRP tanks the beams get heavier as tank height increases (catalogue p. 13).
- Concrete base: built on site to suit the tank (p. 10). For GRP tanks, its compressive strength must be at least 180 kg/cm² (p. 13). Agree in the quote who builds it.
- Location and freight: indoors, rooftop or outdoors (p. 23). Tanks travel as panels and pass through narrow doorways (p. 4); freight depends on the distance from our plant in Malatya, Turkey, and on the load.
- Installation: our own teams assemble, test and commission tanks in Turkey and abroad, with one point of contact from survey to commissioning (p. 18).
Booster sets, pumps and fire booster sets can be added to the same project (p. 22); see Aquapump and our installation guide.
What to send for an accurate quote
An accurate quote needs the eight details requested on the project information form in the Aquatank Product Catalogue 2026 (p. 23):
- Capacity: required water volume (m³).
- Tank type: GRP, galvanized or stainless steel.
- Installation area: width, length and ceiling height.
- Access width: the door or opening the panels pass through.
- Location: indoors, rooftop or outdoors.
- Purpose: drinking, fire, utility or process water.
- Thermal insulation: needed for very hot or very cold regions?
- Delivery: project address and required delivery date.
Send them through the quote form, by email or on WhatsApp; the printable form is on page 23 of the catalogue.
How to compare a low quote
A low quote may simply include less. Check:
- Scope: are the skid, internal stays, ladders, flanges, freight and installation included?
- Capacity: is the stated figure the gross volume or the usable volume?
- Panel quality: get the GRP production method, hot-dip galvanizing or stainless grade in writing, and ask about the floor: convex floor panels use water pressure to compress the joints, while on flat panels the same pressure forces the joints apart (catalogue p. 11).
- Sealing: ask how joints are sealed (Aquasan GRP tanks use a special PVC foam tape, p. 12) and whether spare panels and gaskets are stocked (p. 18).
- Fit for purpose: for drinking water, make sure the material is suitable.
- Warranty: get the period and cover in writing; the Aquasan catalogue states a 2-year product warranty (pp. 3, 18).
For upkeep, see the drainage, cleaning and maintenance section of our drinking water storage tank guide.
Frequently Asked Questions
How much does a sectional water tank cost?
There is no fixed list price. Cost depends on material, capacity and proportions, insulation, fittings, the skid, the site, freight and installation, so each tank is priced per project. Send capacity, tank type and site details through our quote form.
How much does a GRP water tank cost?
A GRP sectional tank is priced on panel area, height, insulation and equipment such as the skid, ladders and connections. Panels are 1,000 × 1,000 mm and height is chosen from 1.0 to 5.0 m in 0.5 m steps (catalogue p. 8).
What does a 10 m³ (10,000 litre) sectional tank cost?
It depends on material and shape. The standard 10 m³ steel tank in the catalogue measures 216 × 216 × 216 cm (catalogue p. 15); a GRP tank of the same volume can be built as 5 × 2 × 1 m or 2 × 2 × 2.5 m to fit the space. A compact shape needs fewer panels.
Is installation included in the price?
That depends on the agreed scope. Aquasan assembles, tests and commissions tanks on site with its own teams (catalogue pp. 3, 18). To plan freight and installation, include the project address, access width and required delivery date in your request (p. 23). When comparing offers, check whether installation, freight, skid and concrete base are included.
Get a quote for your project
Share the required capacity (m³), application and location; our engineers will reply with a recommended panel type, size and material.