About EXTHA
Manufacturer of passive fire protection products since 1984. 40+ years of expertise. Factory in Carcar, Spain.
EXTHA — A manufacturer, not just a distributor
EXTHA is a manufacturer of passive fire protection products, founded in 1984. Unlike many competitors who resell third-party products, EXTHA designs, manufactures and certifies its own products in its factory in Carcar, Spain.
This vertical integration gives EXTHA unique advantages: full control over product quality, rapid response to custom orders, and in-depth technical expertise that only a manufacturer can offer.

Our unique air-drying process
EXTHA's EXTHAMAT® boards are dried naturally in the open air, without gas or external energy. This unique process in the market has two key advantages:
- Product quality: natural, slow drying ensures optimal crystallisation of the plaster, resulting in superior mechanical strength
- Eco-responsibility: zero gas consumption in the drying process significantly reduces the carbon footprint of our products
40+ years of expertise
Since 1984, EXTHA has completed thousands of projects across France and Europe — hospitals, public buildings, high-rise towers, industrial facilities, transport infrastructure. This exceptional track record translates into:
- Comprehensive test reports covering all standard configurations
- Deep regulatory expertise across French and European fire safety standards
- An integrated technical team for project support from prescription to completion
- A regional network of subsidiaries for local project management
Our location
EXTHA SUD OUEST
3 Rue Magnier Bédu
95410 Groslay, France
Tel: +33 1 41 58 10 34
Email: contact@extha.com
Ready to work with us?
Contact our technical team for a quote or technical advice on your passive fire protection project.
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