Much more than windows
Founded in Mersch in 1954, Stemper has served the people of Luxembourg from generation to generation.
Since its founding more than 72 years ago, our philosophy has remained the same: keeping to scheduled appointment dates and our quotes, and satisfying you well beyond the sale. Our strength lies in short decision-making paths and the personal commitment of every one of our employees.
Our Services
Why trust us?
A complete service, from A to Z
For 72 years, we have respected our deadlines and our offers. Full stop. And our commitment does not end with the installation. We are there afterwards, to adjust, repair and carry out warranty work. A competent contact person can be reached at any time to find a solution as quickly as possible.
Whether it is a renovation or a new build, we install your windows, doors and sun protection according to industry standards, with the thermal and sound insulation you need. In an emergency (break-in, damage), we respond 7 days a week, quickly and professionally.
Our Products
We offer a complete selection of products tailored to your needs.
Windows
High-performance triple glazing
Doors
Entrance, interior, landing doors
Sun protection
Roller shutters, pleated blinds, screens and curtains
Insect screens
Insect protection
Garage doors
Sectional and up-and-over
Canopies
Glass, aluminium and made to measure
Pet doors
Access for your pets
Mailboxes
Individual and communal
What our customers say
The trust of our customers, verified on Google.
Reviews load only with your consent.