Iso-Construction
Timber-frame passive houses, extensions and external insulation for homeowners in Rennes and Ille-et-Vilaine
Highlights
- New on EvolcAdded 2026-11-07
About Iso-Construction
Iso Construction builds timber-frame houses (maisons à ossature bois) and passive houses. Its services include timber extensions and elevations, external thermal insulation (ITE), exterior joinery replacement, and timber terraces, pergolas and screens. Components are prefabricated in its workshop in Guichen.
Customers are private individuals, as well as project managers (maîtres d'œuvre) and architects. Projects can be handled turnkey, with trade work carried out by the company's own carpenters and joiners and coordinated with other trades. For site follow-up and second-fix work, it works with ISO CONCEPTS, a design office in Guichen, and a network of partner tradespeople.
The company was founded in 2009 and is based in Guichen, near Rennes, where it also runs a showroom. Its work is centred on Rennes and Ille-et-Vilaine. It holds RGE Qualibat and passive house artisan certifications.
Product: Timber-frame house construction, extensions and elevations, external insulation (ITE), and exterior joinery installation.
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