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Gaznox SA – Chimney Linings, Installation and Renovation of Flues in Geneva
Gaznox SA is a company specializing in the design, installation, and renovation of chimney linings, serving the Geneva canton and the Nyon region. With over 30 years of experience in the industry and construction sector, our founders – Daniel Pitt and Frédéric Gorges – provide expert services to private clients, architects, and heating system installers for all projects related to chimneys and smoke evacuation systems.
We offer comprehensive services for chimneys, chimney linings, smoke ducts, wood stoves, Swedish stoves, pellet stoves, ventilation systems, and fire safety.
Chimney Lining Renovation and Installation
As specialists in chimney linings, we handle:
Renovation of existing flues
Installation of stainless steel or synthetic linings
Linings for boilers: oil, gas, wood, pellets
Linings for backup generators
Industrial and high-temperature chimney linings
Repair of damaged flues
Our solutions ensure optimal smoke evacuation, safe installations, and high energy efficiency, fully compliant with local standards.
Chimney and Stove Installation
We also provide complete chimney and stove installation for residential and industrial buildings:
Living room fireplaces
Swedish stoves
Wood stoves
Pellet / granule stoves
Fireplace stoves
Industrial metal chimneys
Our team ensures proper air supply, safe smoke extraction, and reliable, efficient operation.
Masonry Fireplaces – Construction and Renovation
We handle all types of masonry fireplaces, both for new and existing buildings, including:
Construction of fireplaces with bricks, stone, or concrete
Repair and renovation of cracked flues
Relocation or elevation of existing chimneys
Reconstruction of heritage fireplaces
Work on historic or protected buildings
Each project is completed with architectural care and customized finishes.
Ventilation Ducts and Smoke Extraction Systems
Our specialists install ventilation ducts, smoke extraction systems, and ventilation monoblocks for private, collective, and industrial buildings.
Our services guarantee:
Enhanced fire safety
Ventilation fully compliant with regulations
System testing and validation after installation
Metal Constructions and Custom Structures
In our workshop, we also produce custom metal structures for your buildings:
Metal walkways
Stairs and railings
Metal frameworks
Industrial load-bearing structures
Modifications and adjustments to existing structures
We combine precision, speed, and timely delivery for all projects.
A Complete Team for Your Projects in Geneva and Nyon
Depending on the season, 10 to 20 qualified professionals join our team to provide:
Comprehensive project management
Fast and coordinated interventions
Personalized support for private clients, architects, and installers
We handle all your chimney, flue, ventilation, and metal structure projects from start to finish.
Why Choose Gaznox SA?
Over 30 years of experience in fireplaces, chimney linings, and ventilation
Solutions for private clients, professionals, and architects
Service across Geneva and Nyon
Careful, durable, and standards-compliant work
Expertise in traditional fireplaces and modern installations
Full project management without subcontracting
Contact Gaznox SA
For a quote, consultation, or further information about our chimney linings, fireplaces, ventilation systems, or metal structures, contact us today.
Gaznox SA – Your trusted partner for chimney linings, stove installations, and masonry fireplaces in Geneva and Nyon.
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Opening times
- Monday7:00 to 17:00
- Tuesday7:00 to 17:00
- Wednesday7:00 to 17:00
- Thursday7:00 to 17:00
- Friday7:00 to 17:00
- SaturdayClosed
- SundayClosed
Rating 5 of 5 stars
Opening times
- Monday7:00 to 17:00
- Tuesday7:00 to 17:00
- Wednesday7:00 to 17:00
- Thursday7:00 to 17:00
- Friday7:00 to 17:00
- SaturdayClosed
- SundayClosed
- Mobile:
- E-Mail:
- Website:
Reviews for Gaznox SA
- French
- Heating Systems
- Steel Construction
- Pellet, Log, and Chip Heating
- Metal Construction
- New and special Fabrications
- New Construction,Renovation & Restoration
- Installation of Heating Systems,Ventilation Systems,Ventilation duct installation,Locksmith and metalworking,Steel construction and component manufacturing,Sheet metal work,Heating,Ventilation
- Categories
- Fireplace constructionBoringChimney construction furnace constructionStove FittersHeating systems

