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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,805 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationWynauSIAG SCHWARZ AG
SIAG SCHWARZ AG Logo
Verified· 3 sources

SIAG SCHWARZ AG

Summary

About the company

The core activity of SIAG Schwarz AG is the manufacture and distribution of products for building insulation and airtightness, particularly cellulose insulation and airtightness testing. The company also offers comprehensive services and products for the construction industry, such as roof, wall and window insulation, as well as machine technology.

AI-generated
Offering

Products & services

Industry:Sealing & Insulation
✓ Offered9
Cellulose insulation
Natural thermal insulation made of cellulose fibres for roofs, walls and building services; blown in without joints, moisture-regulating, fire-resistant and designed for summer heat protection.
Air-tightness systems
Air- and wind-tight systems for building envelopes; protection against leaks, energy losses, moisture, draughts and noise, including solutions for roof, wall, windows and plinth.
Air-tightness testing
Blower-Door test procedure to determine the air permeability of buildings; final measurement and in-building-phase measurements to check leaks, the n50 value and construction quality.
Roof insulation from the outside
Insulation of pitched and flat roofs from the outside with cellulose; including vapour barrier, doubling of the rafters, blowing-in and solutions for covered roofs.
Facade insulation
Insulation of solid-masonry façades as well as rendered or ventilated façades with cellulose; with timber substructure, plaster supports and blown-in insulation.
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Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.98
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Untere Einschlagstrasse 3
4923 Wynau
Opening hours
Mon
07:15 - 12:00, 13:15 - 17:00
Tue
07:15 - 12:00, 13:15 - 17:00
Wed
07:15 - 12:00, 13:15 - 17:00
Thu
07:15 - 12:00, 13:15 - 17:00
Fri
07:15 - 12:00, 13:15 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.464.157
Founded
1993 · 33 years
Last commercial register change
June 2, 2025
Employees
11 to 20

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