Frameless Window
Frameless Window
The Frameless Window offers uninterrupted views and ultra-slim detailing, blending minimalism with precision engineering.
Maximum glass minimum frame
Safety glass throughout
Fully sealed and weather resistant
Get your quote:
mm x mm
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
1 pane
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
Black
1. Width: Measure horizontally across the opening from edge to edge at the top, middle, and bottom. Use the smallest measurement.
2. Height: Measure vertically from top to bottom on the left, center, and right sides. Use the smallest measurement.
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Overview
Glass-to-Glass Joints from 25mm
Silicone-sealed joints create almost invisible corners and clean sightlines throughout.
Hidden or Recessed Framing
Slim aluminium frames can be concealed within the structure to achieve a frameless appearance.
Frameless Corner Options
Stepped edge glass allows for fully glazed corners without visible support or metalwork.
High Performance Glazing
Achieve U-values from 1.4 W/m²K with double glazing, or improve to 1.0 W/m²K with triple glazing.
Acoustic and Weather Tested
Up to 45dB sound insulation with Class 4 air tightness and Class E1200 water resistance.
For standard or oversize openings
Available in sizes up to 7m² with glass thickness from 23mm to 44mm, ideal for floor-to-ceiling designs.
Frameless Windows — Minimalism Without Compromise
Designed for projects where clear sightlines matter, Glideline’s Frameless Window system delivers open views and maximum light without bulky frames. Glass-to-glass corners, flush detailing, and recessed profiles all contribute to a clean, almost invisible look—making these windows ideal for contemporary builds, galleries, or minimalist interiors.
From simple fixed windows to multi-panel installations with internal corners or stepped edges, this system adapts to the demands of architectural design. With no need for visible steel supports, frameless glazing simplifies the structure while elevating the final finish.
Manufactured In-House by Glideline
We manufacture every frameless unit in our advanced facat our UK facility, using high-performance glazing and specialist bonding and fabrication methods. Our experienced team assembles each window by hand ensuring long-term strength with minimal visible frame.
Every frameless window is made to order to your precise project sizes and requirements including corner units, shapes or oversized floor to ceiling glazing. Each frameless window combines aesthetic clarity with durable, tested performance you can rely on.
Trusted by Professionals for Complex Designs
These technically challenging frameless windows need a manufacturer that can support you, your architect, builder or installer. We can help with drawings, installation advice, glass and frame information and much more. Whether you're working on a one-off residential feature or integrating multiple frameless units into a modern extension, we help deliver clean results on time.
With fast lead times, flexible glass options, and the expertise to guide you through the finer points of structural glazing, we make it simple to specify high-performance frameless windows with confidence.
Technical specifications
General
Slightlines:
Frame 70MM
Glass To Glass 25MM
Glazing:
Max. 44MM, MIN. 23 MM
Maximum Dimensions:
7M2
Test data
U value: Double Glazing * Uw from 1.4 (W/m²K). Tripple Glazing Uw > 1.0 (W/m²K)
Air permeability: (EN 12207): Class 4
Water tightness: (EN 12208): Class E1200
Wind resistance: (EN 12210): CE 2400
Acoustic insulation: Rw up to 45 dB
Colour Finishes
Available from Glideline
Powder Coating RAL Finish
Standard 7016M and 9005M, 9010G
Available in 150+ RAL finishes
Textured finish available
Split colour for interior/exterior
Anodized aluminium
Class 15; 15-19 micrometer coating for external use as standard
Class 20; 20-24 micrometer coating for use in aggressive conditions, industrial areas and marine pollution
Silver brushed, silver rough brushed, bright silver, matte silver, brushed steel, rough brushed steel, brushed champagne re-polished, bright gold, rough brushed inox re-polished, brushed stainless steel, rough brushed ivory re-polished, brushed bronze, rough brushed bronze and re-polished, rough brushed copper re-polished, rough brushed Bordeaux re-polished, rough brushed green, rough brushed blue re-polished, rough brushed grey re-polished, matte black
Wood effect powder coating
Available in pine, oak, cherry wood, sapele, African walnut, walnut, chestnut and white wood
Reviews
Thank you to the installers Joe and Luke for their hard work. It wasn't easy going up all the stairs but they were happy doing so and I couldn't be happier with the doors. Also Henry has been fantastic from start
Glideline installed 6 sets of sliding doors in our house. This was a major investment for us so we wanted it to be just right. David and all the team were friendly and helpful from start to finish. Henry was great.
FAQs
How much do your windows cost?
Glideline don’t believe in a one size fits all pricing strategy. We make all of our aluminium products on a case by case basis, and we price in the same way so that the pricing suits the individual specifics.
Are aluminium windows thermally efficient?
Our frameless windows use a thermally broken fixing system which will help keep your home as energy efficient as possible. This could potentially lower your reliance on central heating as well as bills.
Are they long lasting?
Our aluminium windows are extremely long lasting and hard wearing, offering great resistance to the elements. With our ten year guarantee, you’re ensured a decade of high aluminium window performance.
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