21.07.2026
Water from your own well: Step by step to independent supply
Fresh water directly from the ground—available 24/7, independent of the public mains. For many homeowners, hobby gardeners, or holiday homeowners, having a private well is an essential water source. But how does well construction actually work, what permissions are required, and what technology is needed?
1. Planning and permission – the first essential step for well construction
Before beginning well construction, the choice of location is crucial. The selected spot in the garden or near the house should be easily accessible and free from underground pipes or sealings. Often, a ground analysis or consultation with a well contractor can determine whether the site is suitable.
Equally important is the legal aspect: In Germany, constructing a well usually requires permission. The relevant water authority—often part of the environmental or building department—will inform you about the necessary forms or applications. Strict regulations apply, especially in water protection areas. Early clarification can save you from costly modifications.
2. Choosing the right well type and pump for your needs
Deciding between a dug and a drilled well depends on the ground water level. If it is shallow, a dug well is sufficient. However, if the water is deeper than 7–8 metres, a drilled well is the technically safer option, allowing stable and clean extraction from deeper layers.
The pump technology must also suit the depth and usage. Pumps for extracting water from near-surface sources—like jet pumps or domestic water systems—can draw water from up to 8 metres deep. They are positioned outside the well, are easily accessible, and suitable for garden and household use.
If the water is deeper or there is a higher water demand, a submersible pump is ideal. It sits directly in the water and quietly and efficiently pumps it upwards—ideal for deep wells or applications requiring higher pressure. Models like the Wilo-TWI 5 are proven solutions for delivery heads over 40 metres.
3. Professional installation: Connecting well and technology
The actual construction of the well should always be carried out by a certified professional. This includes the drilling, sealing against surface water and professional piping installation. Afterwards, the well pump is connected either directly to the house installation or to a separate line for the garden or outbuildings.
Water pipes should be laid frost-proof. If the well is used year-round, reliable winter protection is necessary, such as insulated shafts or automatic drainage systems.
4. Treatment of drinking water from your own well
Water from a private well can be drinkable, but only with the right filtration. A three-stage system comprising a preliminary filter, active carbon filter, and UV filter is standard today. This effectively removes coarse particles, odours, or potential germs without the need for chemical additives.
Especially important: The water quality should be regularly tested by a lab, particularly if the water is used for kitchen and bathroom purposes. This ensures your supply remains not only independent but also safe.
5. Domestic water supply with consistent pressure
To ensure the extracted water reliably reaches all pipes, it is distributed through a domestic water system or a buffer tank within the building. These systems maintain constant water pressure regardless of whether you are cooking in the kitchen, showering in the bathroom, or watering the garden. Larger systems or multi-storey buildings may require additional pressure boosting.
Conclusion: Your own well as the key to autonomous water supply
Whether it’s for your garden, holiday home, or to achieve complete self-sufficiency in your main residence, a well is a valuable investment for independence and water supply security. With careful planning, professional support, and suitable pump technology, you can enjoy clean water from your own source in an economical and sustainable way for years to come.
