Modern kitchens are increasingly designed with sinks placed under windows - this solution provides excellent lighting for the washing area and makes daily household chores more pleasant. However, such positioning requires special fixtures that do not block access to the window sash. At Onninen, we offer professional under-window faucets - dedicated solutions that combine functionality with aesthetics.
From our many years of experience in the installation industry, we know that the proper selection of an under-window faucet determines the comfort of using the entire kitchen. Our offer includes a variety of models - from pull-out faucets to advanced systems that retract into the countertop, ensuring free access to the window without losing functionality.

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What is an under-window faucet and why is it essential
An under-window faucet is a specialized kitchen fixture designed for installation when the sink is located directly under a window. Unlike standard faucets, under-window models are equipped with mechanisms that allow them to be hidden, folded, or removed when opening the window.
When to use an under-window faucet
As a market leader in the installation industry, we know that under-window faucets should be used when the distance between the sink and the window sash is less than 20 centimeters. Standard fixtures in such a configuration would prevent the window from opening, limiting the kitchen's functionality.
- Kitchens with windows that open inward
- Small kitchens requiring optimal use of space
- Modern arrangements with natural lighting in the washing area
- Kitchens with glass or wooden coverings above the sink
Types of under-window faucets available at Onninen
Pull-out faucets
The most popular type in our assortment. A pull-out faucet has a mechanism that allows it to be completely removed from its installation point. Simply unlock the special mechanism, lift the faucet, and place it in the sink basin or on the countertop.
Flexible connection hoses must be appropriately long - usually about 50-60 cm, which provides freedom of movement. After pulling out, only the mounting ring and bent hoses remain, minimizing the height of obstacles to just 2.5-3 cm.
Folding faucets
In this solution, the faucet spout folds towards the sink basin or to the side. The body with the mixer remains in place, but its height is significantly reduced. This type of mechanism requires maintaining a distance of about 7-9 cm between the stationary part and the window sash.
Recessed faucets
The most technically advanced solution in our offer. A recessed faucet is equipped with a special pneumatic or spring mechanism that allows the spout to be hidden in a special compartment made in the kitchen countertop.
When the faucet is pressed down, only a small fragment remains above the countertop - usually up to 5 cm in height. This type of solution requires an additional hole to be made in the countertop but provides the most aesthetic final effect.
| Type of faucet | Minimum height when hidden | Additional installation requirements |
|---|---|---|
| Pull-out | 2.5-3 cm | Long hoses (50-60 cm) |
| Folding | 7-9 cm | Proper folding angle |
| Recessed | 3-5 cm | Additional hole in the countertop |
How to properly measure the space under the window
Our team of experts recommends precise measurements before choosing an under-window faucet. The key measurement is the distance between the upper surface of the sink/countertop and the lower edge of the window sash when open.
Required distances for different types of faucets
- Pull-out faucets: minimum 2.5 cm (when pulled out)
- Folding faucets: minimum 7-9 cm (when the spout is folded)
- Recessed faucets: minimum 3-5 cm (when hidden in the countertop)
- Standard faucets: minimum 20 cm (without the possibility of hiding)
Also, remember to check the type of window opening - for windows that open outward, standard fixtures from our wide offer can be used.
Additional features and equipment of under-window faucets
Pull-out spout - a practical solution
Many models from our assortment are equipped with a pull-out spout connected by a flexible hose. This feature allows for:
- Filling tall containers placed on the countertop
- Thorough rinsing of fruits and vegetables in the colander
- Easy cleaning of the entire sink surface
- Greater freedom of movement during daily tasks
Materials and finishes
In Onninen's offer, you will find under-window faucets made from the highest quality materials. We offer models in the following finishes:
- Polished chrome - classic, easy to maintain
- Brushed steel - modern look, resistant to marks
- Matte black - elegant finish for modern kitchens
- Matte white - minimalist solution
Installation of an under-window faucet - step by step
Installing an under-window faucet requires more precision than standard fixtures. Our specialists recommend the following sequence of actions:
Preparing the installation
- Shutting off the main water supply
- Preparing installation holes according to the manufacturer's instructions
- Checking the length of the connection hoses
- Testing folding/retracting mechanisms before installation
Installation process
The faucets from our offer come with detailed installation instructions and complete sealing kits. Proper positioning of the mechanisms is crucial - especially in recessed faucets, where installation precision affects smooth operation.
For pull-out faucets, the correct length and arrangement of hoses are essential - they must allow for easy
removal without tension or kinks.
Advantages of the washing area under the window with an under-window faucet
Natural lighting
Placing the sink under the window provides excellent natural lighting while working. This allows for savings on electricity while improving the comfort of performing daily tasks.
Optimal use of space
In small kitchens, every centimeter is precious. The under-window area perfectly utilizes space that often remains unused while maintaining the functionality of the window.
Ability to observe the surroundings
While washing dishes or preparing meals, you can observe what is happening outside - especially useful for families with children playing in the garden.
Frequently asked questions
1. What is the minimum distance from the window to the sink for an under-window faucet?
The minimum distance is 2.5 cm for pull-out faucets when hidden. For folding faucets, a minimum of 7-9 cm is required, and for recessed models in the countertop, about 3-5 cm. In our offer, you will find models adapted to various spaces.
2. Can an under-window faucet be installed in an existing kitchen?
Yes, most under-window faucets can be installed in existing installations. Pull-out and folding faucets only require a standard water connection. Recessed models may require an additional hole to be made in the kitchen countertop.
3. Which under-window faucet is best for a small kitchen?
For small kitchens, we recommend pull-out faucets with a pull-out spout. They provide the greatest functionality with minimal height when hidden. Additionally, the pull-out spout increases the working range without taking up extra space.
4. What tools are needed to install an under-window faucet?
The basic installation requires an adjustable wrench, pliers, and a level. For recessed faucets, a hole saw may be needed to make a hole in the countertop. All models in our offer include installation kits with seals and instructions.
5. Are under-window faucets more durable than standard ones?
Under-window faucets have a similar durability to high-quality standard models. The folding or pull-out mechanisms are designed for thousands of cycles of operation. In our assortment, you will find models from reputable manufacturers with long-term warranties.
6. Can an under-window faucet be combined with a dishwasher?
Yes, under-window faucets operate independently of the dishwasher and do not affect its functioning. Both devices use separate water connections. The area under the window can accommodate both a sink with an under-window faucet and a dishwasher in the cabinet under the countertop.
Professional solutions for demanding kitchens
As a leader in the installation market, at Onninen we understand that every kitchen has its unique requirements. Our wide range of kitchen faucets includes models from trusted manufacturers that combine functionality with the aesthetics of modern interiors.
Our experts will advise you on selecting the optimal solution, taking into account the specifics of your kitchen, the type of window, and user preferences. With a wide network of branches throughout Poland, we ensure quick availability of products and professional technical support.
By choosing products from Onninen's kitchen equipment, you invest in solutions proven by thousands of Polish installers. Our under-window faucets combine innovative mechanisms, high-quality materials, and attractive design - all to make your kitchen not only functional but also beautiful.