Glass without borders
We design and manufacture frameless windows, large-format glazing, and glass structures.
Glass without borders
We are glassmakers. We design and manufacture custom-made frameless large-format glazing and glass structures.
Glass without borders
We are glassmakers. We design and manufacture custom-made frameless large-format glazing and glass structures.
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01 – OBSIDIAN Products
Three dimensions of pure glass
Frameless windows, large-format glazing, and glass structures. Precision solutions for modern architecture.
What if glass was
as strong as a wall?
What if glass was
as strong as a wall?
Large-format glazing without compromise. Our NF3 and NF4 frameless windows combine strength, thermal comfort, and precision craftsmanship. Clean lines with no distracting frames.
What if glass was
as strong as a wall?
Large glass surfaces without compromise. Our frameless glazing with 4 Layer technology combines strength, thermal comfort, and absolutely clean detail without distracting frames.
01 – OBSIDIAN Products
Three dimensions of pure glass
Frameless windows, large-format glazing, and glass structures. Precision solutions for modern architecture.
We manufacture large-format frameless windows and glazing, aluminium windows and doors as well as glass structures. We use top-of-the-line aluminium systems and combine everything into a single functional unit with maximum precision and attention to detail.
We manufacture large-format frameless windows and glazing, aluminium windows and doors as well as glass structures. We use top-of-the-line aluminium systems and combine everything into a single functional unit with maximum precision and attention to detail.
02 – Why OBSIDIAN?
Precision
in every detail
Custom production
We will manufacture every product exactly according to your dimensions and requirements.
Certified safety glass
Exclusively laminated safety glass with EN certification for walkable and load-bearing applications.
From design to assembly
Visualization, structural design, manufacturing, transport, and professional assembly - all under one roof.
5-year warranty
We provide a five-year warranty on all products and accessible post-warranty service.
We design large-format frameless windows and glazing, aluminum windows and doors as well as glass structures. We use cutting-edge aluminum systems and combine everything into a single functional unit with maximum precision and attention to detail.
04 – Blog
Blog & News
We show how we think about glass. We share experiences from projects, explain technologies, and bring inspiration for modern architecture and family homes.
03 – Implementation OBSIDIAN
From Prague to London
You can find our projects in bank headquarters, Michelin-starred restaurants, office parks, and family homes. Projects small and large - always with our full care.
02 – Why OBSIDIAN?
Precision
in every detail
In-house production
We have the quality, properties, and final look of the glazing under our own control.
Large-format glazing
Proprietary frameless systems and quadruple-glazed glass for demanding architectural projects.
Precision assembly
Professional installation and meticulous attention to every construction detail.
Service and Long-Term Care
Our work does not end with the handover of the project. We also provide follow-up service.
The glass floor above the wine cellar has become the absolute focal point of the entire living room. Obsidian handled the whole project from design to installation absolutely flawlessly - even despite the non-standard shape of the space.
Jan K.
Family house, Prague
Large-format frameless windows from Obsidian have completely changed our perception of space. The interior connects with the garden so naturally that we feel as if we are outside. We especially appreciate the precise craftsmanship and professional approach throughout the entire project.
Petr D.
Family house, Brno
The glass staircase and partitions gave our interior a modern yet elegant character. Obsidian also handled the technically demanding solution in the two-story house, and the result exceeded our expectations.
Lucie N.
Villa, Průhonice
03 – Implementation OBSIDIAN
From Prague to London
You can find our projects in bank headquarters, Michelin-starred restaurants, office parks, and family homes. Projects small and large - always with our full care.
04 – Blog
Blog & News
We show how we think about glass. We share experiences from projects, explain technologies, and bring inspiration for modern architecture and family homes.
NF3 and NF4 OBSIDIAN frameless windows. When glass replaces the wall
NF3 and NF4 OBSIDIAN frameless windows. When glass replaces the wall
Frameless window installation: over 209 m² of large-format glazing in Zlín
Frameless window installation: over 209 m² of large-format glazing in Zlín
Glazing of premium residential buildings and residences. What really matters?
Glazing of premium residential buildings and residences. What really matters?
FAQ
Frequently Asked Questions
What is the maximum size of a large-format frameless window?
What is the difference between a frameless and a classic aluminum window?
Is it possible to use quadruple glazing for large-format windows?
Do you implement projects throughout the Czech Republic and abroad?
Why OBSIDIAN?
FAQ
Frequently Asked Questions
What is the maximum size of a large-format window?
What is the difference between a frameless and a classic aluminum window?
Is it possible to use quadruple glazing for large-format windows?
Do you implement projects throughout the Czech Republic and abroad?
Why OBSIDIAN?
Contact
Let's start
your project
Let's get your project started. Write us or call us. We reply within 48 hours and we'll gladly show you reference projects similar to your intention.
Contact
Let's start
your project
Let's get your project started. Write us or call us. We reply within 48 hours and we'll gladly show you reference projects similar to your intention.
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