Theo Wernli AG - Window construction, timber construction & joinery in Thalheim, Aargau

Theo Wernli AG is a family business with over 40 years of experience in window construction, timber construction and carpentry. With our own window production facility in Thalheim (Aargau), we offer tailor-made solutions for new builds, conversions and renovations. We are your competent partner for high-quality woodwork, window renovations and joinery solutions in the Aargau, Zurich and Limmattal region.

Window construction & installation - perfect windows for every need

New construction & renovation: Tailor-made window solutions for single-family homes, apartment buildings and commercial buildings

Window renovation & replacement: Modernization of old windows for better energy efficiency

Variety of materials: high-quality wooden windows, wood-aluminum windows and plastic windows

Professional installation by experienced craftsmen

Joinery - individual carpentry work from the experts

Front doors & room doors: Custom-made doors for more security and design

Fitted wardrobes & furniture construction: Perfect solutions for every room

Interior fittings & renovations: High-quality carpentry work for more living comfort

Timber construction & carpentry - sustainable & modern construction

Roof trusses & timber element construction: Durable timber constructions for new buildings and renovations Additions, extensions & conversions: More living space through professional timber constructions

Sustainable construction methods: Climate-friendly timber solutions for energy-efficient living

Why Theo Wernli AG?

Family business