ranQ
ranQ
ranQ
DirectoryIndustriesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryGossau SgErnö Roncz AG
Ernö Roncz AG Logo
Verified· 3 sources

Ernö Roncz AG

Summary

About the company

The core activity of E. Roncz AG is the creation and processing of industrial floors, particularly in the areas of: subfloors, self-leveling compounds, insulation, design floors, concrete and split-level forecourts. The company offers these services for renovations, new constructions and conversions.

AI-generated
Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
✓ Offered7
Support screeds
Support screeds for underfloor heating, for covering technical installations, as floor build-ups mixed and pumped directly on site.
Self-levelling mortar
Self-levelling mortar made from anhydrite or cement, mixed and poured on site, levelled to height using a laser, also as a sanded and impregnated finished floor.
Insulation layers
Insulation layers for thermal and impact sound insulation, including various build-ups and foam concrete for height compensation.
Design floors
Design floors as visible self-levelling screed, hard concrete with aggregate grinding and mesh grinding for visible, designed floor surfaces.
Hard concrete
Hard concrete floor coverings for garages, ramps and stairs, as a robust floor and surfacing solution for heavily used areas.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
Reviews

Aggregated rating

Aggregated rating
3.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle3.76
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Ernö Roncz AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Ernö Roncz AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Ernö Roncz AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Ernö Roncz AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Schwalbenstrasse 37a
9200 Gossau Sg
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.271.115
Founded
1987 · 39 years
Last commercial register change
July 1, 2016
Employees
21 to 50

Similar companies

KN
Köppel Natursteine AG
Au Sg
SS
Sigmund Sieber AG
Diepoldsau
PN
Pizrog Natursteine AG
Neuhaus Sg
BA
Belag AG Sennwald
Sennwald