
Joinery and carpentry in Arbaz: interior fittings, kitchens and wooden structures made from regional wood species

Constantin Frères
Arbaz (CH)New on Amplifa
About Constantin Frères
Constantin Frères is a joinery and carpentry business in Arbaz in the canton of Valais, run by the Constantin family for generations. Its 22-person team produces interior fittings, traditional joinery work, roof structures (charpente) and made-to-measure kitchens — from the first design through planning to production and installation. Work is carried out mainly using regional wood species, with locally grown timber used for roof structures. Customers come primarily from private construction and renovation projects in the Arbaz and Anzère area. In 2026, Nicolas Delessert and Dylan Beytrison took over the company from Thierry and Blaise Constantin after five years of close collaboration and continue the business with over 80 years of timber construction tradition.
- Site
- Arbaz
- Processes
- Menuiserie traditionnelle (joinery), Charpente (carpentry/roof structures), Agencement intérieur (interior fittings/furnishing), Cuisine (kitchen construction, from design to production), Interior fittings (agencement intérieur), Traditional joinery, Carpentry (charpente), Kitchen construction
- Materials
- Wood (regional wood species, "essences locales"), Regional wood species, Locally grown timber
- Employees
- 22
- Industries
- Private customers/construction projects (interiors, kitchens, roof structures)
- 01
Consulting and project planning
- 02
Sketch/design
- 03
Production in the workshop
- 04
On-site installation
Materials & Processes
Regional wood species
Durable regional wood species ('essences locales') are used for joinery, interior fittings and kitchens.
Locally grown timber
Roof structures (charpente) are traditionally built using locally grown timber.
Locations

Arbaz
CHWorkshop and office
- Materials
- Wood (regional wood species)
Components & Services




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Menuiserie traditionnelle (joinery) | – | – | – | – | Wood (regional wood species, "essences locales") |
| Charpente (carpentry/roof structures) | – | – | – | – | Locally grown timber |
| Agencement intérieur (interior fittings/furnishing)Assembly | – | – | – | – | Wood |
| Cuisine (kitchen construction, from design to production)Assembly | – | – | – | – | Wood |
Additional services
History
- 2026
Thierry and Blaise Constantin hand over the company to Nicolas Delessert and Dylan Beytrison after 5 years of collaboration
Over 80 years of experience in timber construction (family tradition of the Constantin family)