Timber construction
Roof trusses, timber-frame houses, agricultural buildings. Pre-cut in the workshop, raised on site in days — not months.
- Roof trusses
- Timber framing
- Extensions
Zimmerei Astwerk — Trubschachen, Emmental
We build
what we draw.
Timber construction from the Emmental. Roof trusses, facades and interiors in solid wood — measured twice, cut once, built to be handed down.
Fixed-price quotes · 10-year written guarantee · Est. 1948
Sheet 02 · Services
Three trades. One standard.
Everything leaves our workshop the same way: drawn, cut, checked, signed.
Roofs & facades
Rafters, battens and larch cladding that shrug off seventy Emmental winters. We re-roof occupied homes without drama.
- Re-roofing
- Larch cladding
- Insulation
Interiors & joinery
Stairs, built-in wardrobes, solid-wood floors. Fitted to the millimetre, finished with oil, made to be touched.
- Stairs
- Built-ins
- Floors
Sheet 03 · Projects
Drawn first. Standing since.
Three recent jobs. Ask for the full list — every roof has an address and an owner who will pick up the phone.
SPRUCE + LARCH · 186 M² · 7 WEEKS · 2025
Ridge House, Rotmoos
New roof truss and facade for a ridge-top family house. Spruce structure, pre-weathered larch skin.
ORIGINAL FIR + OAK · 214 M² · 2024
Barn conversion, Trub
A 1911 hayloft, now a family home. Every original beam that could stay, stayed.
SOLID SPRUCE · 320 M² · 2023
Lakeside guesthouse, Brienz
Full timber envelope and interiors for a year-round guesthouse. Warm at minus fifteen.
Sheet 04 · Process
Four steps. No surprises.
01
We visit, listen and measure. Twice — that part is not a saying here.
02
You get a real drawing and a fixed price. The number we write is the number you pay.
03
Every beam and joint is cut and dry-fitted in our Trubschachen workshop before it travels.
04
On site, on schedule. We leave when it is plumb and the site is swept.
Sheet 05 · Credentials
The boring numbers that matter.
No slogans on this sheet. Membership cards, audit stamps and a guarantee you can frame.
- Years at the bench
- 0
- Roofs raised
- 0+
- Master carpenters
- 0
- Written guarantee
- 0-yr
- Holzbau Schweiz member
- Schweizer Holz certified
- SUVA safety audited
- Fixed-price quotes
Sheet 06 · The workshop
The hands behind the joints.
Four carpenters, one workshop, no subcontractors. The person who draws your roof is the person who stands on it.
4TH GENERATION
Andreas Wyss
Master carpenter · Owner
SINCE 2003
Beat Schär
Master carpenter · Roofs
SINCE 2011
Franziska Kohler
Joiner · Interiors
SINCE 2017
Luca Marti
Carpenter · Site lead
Sheet 07 · Contact
Tell us what you're building.
A site visit and a first estimate cost nothing. We reply within two working days.
WorkshopAstwerk AG
Dorfstrasse 14, 3555 Trubschachen BE
Dorfstrasse 14, 3555 Trubschachen BE
Phone+41 34 495 12 48
Mailmail@astwerk.ch
HoursMon–Fri 07:00–17:00
Saturday by appointment — someone is usually planing anyway.
Saturday by appointment — someone is usually planing anyway.