Glideline Ltd is a UK-based manufacturer of premium aluminium windows, doors, and glazing systems, supplying only to the fenestration trade. Based in Great Yarmouth, Glideline is committed to providing high-performance, bespoke glazing solutions that combine innovation, durability, and aesthetics. With a focus on trade professionals, their range of products is designed to enhance both residential and commercial projects with superior quality and efficiency.
Understanding the challenges of selecting a reliable supplier, Glideline provides premium, cost-effective solutions with timely delivery. They cater to projects ranging from domestic extensions and new builds to large commercial developments, ensuring high standards and competitive pricing.
Renowned for enhanced and re-engineered doors and windows, innovative designs, problem-solving, and attention to detail, Glideline prioritises advanced products with a trade-focused service. Their flagship products, GS15 and GS20 ultra slim sliding doors, features industry-leading sightlines, and both doors offering high-specification hardware, flush stacking design and first-class build quality.
All Glideline products are bespoke, offering custom configurations to suit specific project requirements.
- Made in the UK – All products are manufactured in-house, ensuring rigorous quality control and high standards.
- Trade-Only Manufacturer – Exclusively supplying the fenestration trade, Glideline provides specialist solutions tailored to professional installers.
- 10-Year Guarantee – Every product comes with a decade-long guarantee, reflecting confidence in durability and long-term performance.
- Bespoke Manufacturing – Custom-made to precise specifications, ensuring a seamless fit for every project.
- Fast Lead Times – Reliable supply chain and efficient production processes ensure quick turnaround times.
The Glideline Product Range
Expertly manufactured for the trade and discerning installer, the Glideline Product range comprises contemporary windows, bifolding, sliding and patio doors, alongside bespoke glazing solutions. The product range uses
GR 49 Residential Doors
Crafted from premium aluminium, Glideline’s residential doors offer durability, security, and style.
Available as single or double glazed doors, these entrance solutions provide excellent thermal performance, weather resistance, and multi-point locking for enhanced security. Made to measure, they cater to both contemporary and traditional property styles.
GB49 Bifold doors
Glideline’s bifold doors use the tried and tested Cortizo profiles, but enhanced by the Company provide large glazing areas, slim sightlines, and an innovative folding mechanism for maximum space efficiency.
Available in multiple configurations with low-threshold options, these doors offer easy access and stunning aesthetics for modern living spaces. Find out more about GB49 Bifold doors.
GSP Pocket Sliding Doors
Ideal for maximising space, pocket sliding doors slide seamlessly into the wall, creating an open, airy feel.
With ultra-slim 15mm or 20mm frames and smooth operation, they offer a minimalist, modern aesthetic while ensuring thermal efficiency with U-values as low as 1.3 W/m²K.
GS15 Sliding Doors
As the UK’s slimmest sliding door, the GS15 features an elegant 15mm sightline and advanced thermal performance.
Its minimalist frame ensures uninterrupted views and seamless indoor-outdoor integration, making it an ideal choice for contemporary designs. GS15 is the slimmest sliding door of its kind in the UK.
GS20 Sliding Doors
Featuring expansive glass panels with sightlines as slim as 20mm, these sliding doors invite natural light while maintaining thermal insulation.
With smooth gliding operation and high weather resistance, they are a stylish and practical choice for both residential and commercial projects. The GS20 range uses the tried and tested Cortizo profiles, but the overall door set is substantially enhanced by Glideline Ltd.
GS25 Sliding Doors
Designed for large-scale openings, these patio doors provide 94% glass surface, enhancing natural light and panoramic views.
Available with motorised or manual operation, they ensure effortless usability and long-term performance.
GS 47 Sliding Doors
A high-performance alternative to ultra-slim bonded sliding doors, the GS47 model balances affordability with modern aesthetics.
Offering excellent security, weather resistance, and sleek European styling, these doors cater to diverse project requirements. GS 47 sliding doors are a contemporary and more affordable sliding door, using re-engineered and enhanced profiles and hardware.
GW 70 Casement Windows
With a 70mm frame and U-values as low as 1.0 W/m²K, GW70 casement windows provide excellent insulation and durability. Available in fixed, side-hung, or top-hung configurations, they offer flexibility in design and superior weather resistance.
The entire GW70 range offers bespoke aluminium window solutions for dwellings and commercial buildings.
GT 70 Windows
The GT70 window range includes inward opening designs with slim sightlines and robust thermal insulation. Ideal for both new-builds and retrofit projects, these windows combine aesthetics with high-performance engineering.
GT70 windows comprise a collection of products with hidden sashes, tilt and turn designs and large-size contemporary windows.
Internal Doors and Screens
The Glideline internal doors and screening collection comprises a full suite of doors, fixed windows and internal screens. Manufactured in the industrial, heritage, or steel look, the internal doors come in hinged, sliding or pivot opening options.
Screens are available in bespoke sizes, including corners, shapes and raked heads or standard configurations to work alongside doors.
Glideline Trade Partner Network
By joining the Glideline Trade Partner Network, glazing professionals gain access to exclusive benefits, including priority support, bespoke solutions, and marketing resources. This partnership ensures that trade customers receive superior products, competitive pricing, and dedicated technical assistance to enhance their business operations.
