Building site manufacturers and installers


As a manufacturer of aluminium joinery for large-scale construction sites, your expectations are as high as the buildings you’re helping to create. These are unique, often large-scale and require a significant investment in time and resources, a large volume of joinery, and flexibility and responsiveness from your supplier.

Always listening to its customers, Sepalumic is constantly positioning itself as a trusted partner and is committed to giving you all the keys to the success of your projects. This is why we offer you a range of products and services dedicated to commercial sites, as well as a local team of experts to provide you with a personalised response according to the specifics of each of your projects.

Bespoke products for your projects

Benefit from the expertise of SEPALUMIC, the specialist in aluminium joinery and facade solutions, with a wide range of products that can be adapted to your requirements. Our ranges take advantage of the exceptional mechanical properties of aluminium and enhance this durable material, which is rigid yet light, stainless and 100% recyclable to bring unique eco-friendly projects to life.

Curtain Wall W44

Tertiary minimal sash window 5700

High Trafic Door 4500GT series

Curtain wall Large dimensions W58 series

Our Project service

Taylor-made for your projects

Project is the Sepalumic service that supports building site manufacturers and installers and building specifiers in the undertaking of large-scale projects. From the initial design to installation of joinery on site, our expert teams provide technical support and expertise in the commercial building site sector. Thanks to Project’s expertise, you benefit from support in the study and costing of your project, from the development of specific products according to your needs, and from recommendations regarding optimisation and choice of ranges for your site.

Our Project teams also act as a link between you and building specifiers, enabling you to expand your business by bringing in new projects ordered by architects, property developers and project managers, all of whom are partners of Sepalumic.

We provide you with the solutions you need to meet your site requirements

« From product design by our dedicated design office to manufacturing and installation by our partner customers, the success of Project sites relies above all on working in synergy : specialists, manufacturers, architects. »

Referent prescriber France


Benefit from a service 100% dedicated to your project and including :

  • At the preliminary design stage (basic and detailed) : we provide bespoke solutions to address the specificities of the project (aesthetics, thermal properties, etc.)
    – Specific creation
    – Technical solutions
    – Solutions techniques
  • At the time of the call for tenders (CFT): interactive liaison with the Sepalumic design office to validate the pre-defined technical options.
  • Regular monitoring of the site, from manufacture to installation.
  • A Project correspondent, technical intermediary between you, the Project Design Office and the architect.

A dedicated team and recognised expertise

A dedicated design office in addition to the range design office that can respond to any implementation issues

8 distribution centres in France (all ISO 9001 certified) and abroad : guaranteed rapid responses regarding supplies, local technical and sales assistance.

A state-of-the-art extrusion plant located in France which allows us to control all stages of production:

  • Better quality control
  • Greater flexibility and speed in dealing with consumption increases or major construction projects

Consultants in France and abroad and professionals to advise you on the different phases of your project