Timber patio roofs
We build and renew timber patio roofs in the Rhine Valley, throughout the canton of St. Gallen and in Liechtenstein. The structure, covering, foundations, junctions and drainage are planned to suit your house. See projects from Wangs, Oberriet and Gams.
References
Projects from Wangs, Oberriet and Gams show patio roofs that fit the existing building visually and are executed cleanly.
At a glance
Use cases
For seating areas, terraces and entrances. A covered roof protects from rain; an open pergola mainly provides shade and less protection from driving rain.
Structure & roof cover
Attached or freestanding, with a visible glulam or structural timber frame. The finish can be natural, stained or opaque. Use, daylight, upkeep and the facade guide the design.
Cost factors
Cost depends mainly on span, roof cover, foundations, drainage and visible timber quality. After photos and site measure, we give a realistic range.
Drainage and junctions
For attached roofs, we plan the slope, wall junction and drip edge to suit the facade and terrace surface. Freestanding roofs also need splash-water protection and suitable drainage across the plot.
Gutters and downpipes can be visible or integrated, depending on the roof system. We define the water route before fabrication, including for small canopies.
Choose the roof covering
How much daylight should pass through the roof, and how much upkeep suits you?
Trapezoidal sheet metal
Robust, practical and cost-conscious for weather-focused roofs and canopies.
Corrugated or profiled sheets
A practical roof field for simpler geometries, lighter canopies and selected seating roofs.
Polycarbonate
Lightweight and impact-resistant with UV-protected grades. Useful when a bright covered area matters.
Acrylic
Clearer long-term look, strong UV stability and high light quality where transparency matters.
Suitable foundations
Soil, loads and site access determine the foundation choice.
Screw foundations where suitable
A clean low-excavation option for selected lighter structures when access, soil and loads allow it.
Classic foundations where required
Often suitable for larger spans and higher loads.
Costs / budget frame
Area, span, roof covering and ground conditions determine the work involved.
Main price drivers:
- Span and structural requirements
- Attached or free-standing
- Roof cover and daylight solution
- Visible timber quality and finish
- Foundation and ground conditions
- Drainage and junction details
- Side protection or shading
Guide only. Final pricing follows site measure, roof choice, foundations, drainage and connection detailing.
Scope
- Visible glulam/structural timber frame, natural or colour-treated
- Roof cover: trapezoidal sheet, corrugated/profiled sheets, polycarbonate or acrylic
- Drainage with gutter, downpipe and a planned water route
- Options: shading, lighting, side protection, screw foundations where suitable
Process
- Clarify site measure, use case, roof type and permits
- Plan structure, foundations and drainage
- Prefabricate, install and finish clean junction details
Regional detail pages
Common questions
Can the structure be free-standing or attached to the facade?
Yes. Attached roofs need a planned facade junction and drainage. For freestanding roofs, we check foundations, wind loads and bracing.
Do you also build small entrance canopies?
Yes, for entrances and side areas too. We coordinate the roof edge, drip edge and drainage with the facade and intended use.
Region
Gams, Sevelen, Buchs, Alt St. Johann, Wildhaus, Unterwasser, Sargans, Mels, St. Gallen, Herisau, Gossau, Wil SG, Uzwil, Flawil