A crane lowering a white horizontal Laura water tank in front of new apartment buildings

GRP water tanks for apartment buildings and compounds, quoted within one working hour

For building owners, owners' associations and facility managers: we build the capacity your building needs on a diameter that fits your site, deliver and crane-place it, and invoice your entity with VAT.

25-year warranty
Up to 100,000 L per tank
Crane placement on request
VAT invoice to your entity

WhatsApp Call 055 511 5659 Email

We reply within one working hour, Saturday to Thursday.

Sizing a building tank

Start from occupants, not flats: number of flats × average occupants per flat × 150 to 250 litres per person per day × two or three days of reserve.

Example: 10 flats of 5 people at 200 litres per person is 50 × 200 = 10,000 litres a day. Two days of reserve is 20,000 litres; three days is 30,000 litres.

Where a consultant has designed the building, the capacity on the drawings governs and we build to it. If the design puts a fire-water reserve in the same tank, include it in your request, because it changes the volume.

One large tank or several?

One tank means fewer connections and a simpler installation. Two or more let you clean or service one while the other feeds the building, so residents keep their supply.

On compounds we suggest a tank per building or per group of buildings, so one tank under maintenance never stops the whole site. Each tank is built on a fixed diameter with length set by capacity; choose what your site can take.

Capacity	Diameter	Approx. length
20,000 L	2.00 m	6.50 m
30,000 L	3.00 m	4.50 m
40,000 L	3.00 m	6.00 m
50,000 L	3.00 m	7.40 m
60,000 L	3.00 m	8.80 m
75,000 L	3.50 m	8.00 m

Crane, roof load and site access

Tanks up to 2.40 m diameter travel on a standard flatbed; 3.00 m and 3.50 m tanks are oversize loads that need a low-bed and a crane. Send us the street width and the distance from the truck position to the tank location, and the right crane will be in the quote.

We crane large tanks into courtyards and basements and onto concrete roof slabs. An above-ground tank needs a level, even base that supports it fully, with nothing stored on top.

Each 1,000 litres of water weighs about one tonne, so the building's engineer should confirm the roof can carry the full tank before you order.

VAT invoice and the documents finance asks for

To invoice your entity with VAT we need your commercial registration, national address and VAT registration certificate.
On request we send copies of our commercial registration, VAT certificate and ISO 9001, 14001 and 45001 certificates for vendor set-up.
The quote shows the price before VAT, VAT, delivery and crane placement, and who is responsible for excavation and the base.
The warranty certificate is issued to your entity: 25 years from the invoice date against manufacturing defects, subject to the installation guide.

Frequently asked questions

Can your tank replace a leaking concrete tank?

Yes. Send the internal dimensions of the old pit and its opening; we build a tank whose diameter and length fit, installed in the prepared pit per the installation guide.

How often should a building tank be cleaned?

Every six months through the manhole. Before draining it, the National Water Company offers a tank-washing permit request so the draining is not recorded as a violation.

Do you install?

We deliver and crane-place the tank, priced in the quote. Excavation, base, backfill and plumbing are the building contractor's, using our installation guide.

How soon can the tanks arrive?

Common sizes are in stock; other sizes take about a week, depending on the order and the number of tanks.

Does the warranty cover roof tanks?

Yes. All our tanks carry 25 years against manufacturing defects from the invoice date, subject to the installation guide: a level base above ground, the burial conditions below.