Gaznox SA is a company specialized in the renovation, design, and installation of chimney linings across French-speaking Switzerland. With over 30 years of experience in industry and construction, the founders – Daniel Pitt and Frédéric Gorges – bring their expertise to private clients, architects, and heating system installers.

We handle all projects related to chimneys, linings, flue systems, wood stoves, Swedish stoves, pellet stoves, ventilation ducts, and fire protection solutions.

Renovation and Installation of Chimney Linings

Gaznox SA is your specialist for chimney lining renovation, flue installation, chimney casing, and ensuring all systems comply with current standards.
We provide solutions for:

• Existing chimney linings

• Installation of stainless steel or synthetic linings

• Boiler flue linings (oil, gas, wood, pellets)

• Emergency generator flue linings

• Industrial flue systems

• High-temperature flue linings

• Renovation of damaged flues

Our solutions meet the demands of modern heating systems, ensuring safe smoke evacuation and optimal energy efficiency.

Installation of Chimneys and Stoves

In addition to linings, we offer complete chimney and stove installation:

• Living room chimneys

• Swedish stoves

• Wood stoves

• Pellet / granule stoves

• Stove-chimney combinations

• Industrial metal chimneys

Our teams ensure proper air supply, smoke evacuation, and all technical elements for safe and efficient operation.

Masonry Chimneys – Construction, Renovation, Heritage

Gaznox SA has extensive expertise in masonry chimneys, including:

• New masonry chimney construction

• Renovation of cracked chimneys

• Relocation or height adjustment

• Heritage restoration

• Chimneys on listed or protected buildings

We work with bricks, stone, and concrete, offering custom finishes while respecting the architectural character of the building.

Ventilation and Smoke Extraction Ducts

Our teams install ventilation ducts, smoke extraction systems, and ventilation monoblocks for private, industrial, and collective buildings.
Our solutions guarantee:

• Enhanced fire safety

• Compliance with ventilation standards

• Installation tested and validated upon completion

Metal Constructions and Custom Structures

In our workshop, we also manufacture custom metal structures:

• Metal walkways / platforms

• Stairs and railings

• Metal frameworks

• Industrial load-bearing structures

• Modifications to existing structures

Responsiveness, precision, and meeting deadlines are at the heart of our commitments.

A Full Team at Your Service

Depending on the season, 10 to 20 qualified professionals join our team to ensure:

• Quick interventions

• Complete project management

• Support for private clients, architects, and heating installers

We handle your projects related to chimneys, linings, ventilation, metal structures, and renovation from A to Z.

Why Choose Gaznox SA?

• 30 years of experience in chimneys, linings, and ventilation

• Solutions for private clients, professionals, and architects

• Services across French-speaking Switzerland

• Careful, durable, and standards-compliant work

• Expertise in traditional chimneys and modern installations

• Comprehensive project management without subcontracting

Contact Gaznox SA

For diagnostics, expert assessments, quotes, or any information about our services in linings, chimneys, ventilation, or metal structures, please contact us directly.

Gaznox SA – your reference for chimney linings, stove installations, and masonry chimneys in French-speaking Switzerland.