Products for rainwater harvesting and water treatment as well as
for rainwater infiltration


Please note that currently only orders from Germany, Belgium, Luxembourg and France are possible from the respective stores with a corresponding in-country address.

Store Germany

Store Belgium

Store Luxemburg

Store Austria

Store France

Weight, size and value of the items as well as the delivery address determine both the shipping method and the shipping costs. INTEWA reserves the right to determine the shipping method depending on the total amount of order items.


Delivery of large-volume articles that must be unloaded by more than one person or with suitable equipment due to their weight and size is carried out by a forwarding company.

When placing an order, please inform us of the exact delivery address for the construction site or the warehouse and the telephone number for notification of delivery. INTEWA will be in contact regarding coordination.

- Personnel for unloading must be provided on-site
- Depending on weight, suitable forklifts must be available for unloading
- Pallets are generally not taken back by the forwarding company
- The heaviest individual weight (DRAINMAX Tunnel) is approx. 32 kg

Please note that forwarding companies will charge for new transport if the delivery of the goods is unsuccessful. Please make sure that there is someone on-site who can receive the ordered goods.

Parcel service

Please note that the parcel service can only deliver to addresses with house numbers. INTEWA does not deliver to package stations. We cooperate with UPS and DHL parcel service providers.
The tracking number is only available on request at

Customer pickup

The main warehouse in Aachen only stores some of the goods that are available for customer pickup.
Please inquire about availability in advance at

Warehouse opening times
Monday to Thursday: 8:00 to 16:30
Fridays: 8:00 to 15:00

Auf der Hüls 182
52068 Aachen, Germany
+49 (0)241 96605 0


Should an article not meet your expectations, you have 14 days full right-of-return.

The return costs will not be refunded and will be charged to the customer.

Shipping costs

The indicated shipping costs are VAT inclusive.
The calculation of the shipping price depends on the volume and weight of the individual items, as well as the total shopping cart. When placing an order, only the highest amount will be charged once. If INTEWA splits your order into several deliveries for logistical reasons, you will not incur any additional shipping costs for subsequent deliveries.
You will be informed about the exact shipping price during the ordering process.

-Goods valued more than 595.00 € receive delivery free of charge within Germany, France, Luxembourg and Belgium.

-Goods valued up to 595 € are charged

6.90 € for Germany
25.00 € for France, Austria, Luxembourg and Belgium


-All DRAINMAX middle tunnels, DRAINMAX start caps, DRAINMAX end caps and complete packages containing tunnels or caps are shipped by forwarding companies. The shipping costs are flat-rate   

226.10 €/ pallet for Germany
476.00 € / pallet for France, Austria, Luxembourg and Belgium

DRAINMAX Tunnel, per pallet 2.4 m x 2.50 m up to a maximum of 20 tunnels and a maximum of 10 caps


We deliver within Germany, France, Austria, Luxembourg and Belgium (mainland). For delivery to an island we ask for a separate request at

We do not deliver to package stations.

Delivery times

Unless otherwise stated in the item description,the standard delivery time is

1-3 working days for Germany
3-5 working days for France, Austria, Luxembourg and Belgium

 after order confirmation, except for DRAINMAX products, where the standard delivery time is 14 days after order confirmation.

If products have been ordered with varying delivery times, INTEWA will send all of the goods together in one shipment provided that no alternative has been agreed to. In this case, the delivery time is determined by the article with the longest delivery time that was ordered.

We will inform you immediately of any delivery delays.

In the event of non-availability of the ordered goods, INTEWA reserves the right not to deliver. In this case we will inform you immediately and refund any payment already received.

 Further conditions can be found in our general terms and conditions.

Contractual language is German or English.