Aluminium Windows Leeds and yorkshire | Bespoke Design, Supply & Installation UK-Wide
Call us: 020 341 10038 | 01768 254552
Email: projects@thefenestrationnetwork.co.uk
Looking for high-quality aluminium windows and doors in Leeds? We design, supply and install bespoke aluminium windows and doors across Leeds, Yorkshire and the rest of the UK. Whether your project is a modern build, heritage restoration or contemporary extension, we deliver performance, aesthetics, and reliability.
Premium Aluminium glazing, professionally installed Nationwide:
Why Aluminium Windows AND DOORS Are a Smart Choice for Leeds Properties
Leeds encompasses a rich mix of architecture: Victorian terraces, red-brick semis, warehouse conversions, and modern developments. Aluminium windows and doors offer advantages in this environment:
- Slim sightlines & large glass area — maximize daylight and external views
- Structural strength — able to support large panels and big spans
- Durability & weather resistance — no warping, rot or corrosion
- Thermal efficiency — modern systems with thermal breaks deliver low U-values
- Low maintenance — minimal upkeep compared to timber
- High security & compliance — can meet PAS 24 / Secured by Design standards
- Design flexibility — wide palette of RAL colours, dual-colour finishes, flush / heritage / contemporary styles
These benefits make aluminium windows especially suited for Leeds’ fluctuating climate, urban settings, and conservation / listed building challenges.
Our Leeds Aluminium Window Range & Options
We offer a comprehensive selection of aluminium window systems, tailored to your building style and project goals:
- Flush & heritage casement windows — for period or conservation properties
- Tilt & turn / reversible windows — for added ventilation flexibility
- Sliding / picture windows — ideal for maximizing openings in tight spaces
- Fixed / high-level windows — to bring light into rooms with constraints
- Oversized / full-height windows — for dramatic glazed façades
- Custom configurations — sidelights, transoms, curved, angled or shaped windows
- Glazing options — double, triple, acoustic, low-E, solar control
- Finish options — single colour, dual colour, special finishes, textured surfaces
BUILDING & EXTENSIONS, EXPERT INTEGRATION WITH GLAZING
BUILDING SERVICES, EXTENSIONS & ORANGERIES — EXPERTLY INTEGRATED WITH GLAZING
At The Fenestration Network, we provide a comprehensive, end-to-end service that brings every stage of your project together under one expert team. From foundations and brickwork to glazing and finishing, we seamlessly coordinate every trade to guarantee precision, performance, and a smooth experience for you.
We don’t just install glazing — we build around it.
Our integrated approach means the structural and glazing elements are designed and executed to complement one another from the start, delivering:
- Perfect junctions between structure and glass (no leaks, no cold bridges)
- Cohesive design and performance across the entire build
- Faster project delivery with a single accountable team
- Consistent quality control from groundworks to final finish
This joined-up delivery model ensures your orangery, extension, or renovation achieves the best of both worlds: robust construction and high-performance glazing, all delivered by specialists who understand both disciplines.
Our Supply & Installation Process for Leeds Projects
We provide a full, end-to-end service optimized for Leeds sites and constraints:
- Site survey & consultation — assessing apertures, structural conditions, access and planning constraints
- Design support & specification advice — helping you select systems, hardware, finishes
- Precise manufacturing — bespoke fabrication tailored to your exact dimensions
- Professional installation — our fitters manage tolerances, sealing, finishing, site conditions
- Aftercare & warranty — maintenance advice, support, guarantee
We understand the challenges in Leeds: tight streets, party walls, conservation zones, structural details, and logistics. We coordinate all the complexity so you don’t have to.
WINDOW & DOOR MAINTENANCE PLANS | FENESTRATION NETWORK
Protect your glazing with nationwide window and door maintenance plans. Cleaning, servicing, and performance checks by The Fenestration Network
Your windows and doors are an investment — and like any part of your home, they need regular care to stay secure, efficient, and looking their best.
At The Fenestration Network, we offer nationwide window and door maintenance plans designed to protect your property, reduce long-term repair costs, and keep every installation performing like new.
✅ Extend lifespan of your glazing
✅ Maintain energy efficiency and security
✅ Prevent costly repairs
✅ Keep warranties valid
✅ Ensure your property always looks its best
Book your plan today.
Call us: 020 341 10038 (South) / 01768 254552 (Rest of UK)
Email: maintenance@thefenestrationnetwork.co.uk
WINDOW AND DOOR SYSTEMS BY THE FENESTRATION NETWORK
CORTIZO, SMARTS, ALUMIL, ALUNET, SCHUCO & ASTON ARCHITECTURAL - THE BEST ALUMINIUM WINDOWS AND DOORS, PROFESSIONALLY INSTALLED
At Fenestration Network, we work with the UK’s leading system companies and manufacturers to provide homeowners with the very best in aluminium windows and doors.
Our expertise spans decades in the glazing industry, giving us a complete understanding of how each system performs, what makes it unique, and where it fits best.
Whether you’re looking for architectural aluminium sliding doors, precision-engineered bifolds or beautifully crafted front doors, we've got you covered.
SAVE MONEY - WE DELIVER THE WHOLE PROJECT - SUPPLY & INSTALL
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Ultra-slim 88mm sightlines
Available with or without Crittal effect
Over 150+ RAL colours to choose from
U-Value: 1.0W/M2K
Available in over 19 configurations
AB-60 Premium smarts bifolding doors FROM £2750
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
132mm sightlines
Over 150+ RAL colours to choose from
Upto 20 Years Guarantee
U-Value: 1.4W/M2K
Available in over 19 configurations
AS-20 smarts SLIM 20MM sliding doors FROM £3250
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
cortizo cor vision SLIM 20MM sliding doors FROM £2950
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Ultra slim 20mm sightlines (Central mullion)
Soft Close
Over 200+ RAL colours to choose from
Available in 2 or 3 track
1.6 W/m2K U Value
cortizo cor vision SLIM 20MM sliding doors FROM £2950
AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250
cortizo cor vision SLIM 20MM sliding doors FROM £2950
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Sightlines
Frame depth 116 mm / 182 mm 3 rails Sash depth 37 mm
Interlock 20 mm
GS20 CORTIZO SLIM 20MM SLIDING DOORS FROM £3450
AW-47 SMARTS HERITAGE WINDOWS FROM £650
GS20 CORTIZO SLIM 20MM SLIDING DOORS FROM £3450
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Slim 20mm sightlines
Standard or Flush Stacking
Over 200+ RAL colours to choose from
1.3 W/m2K U Value
GB-49 Cortizo bifolding doors FROM £2950
AW-47 SMARTS HERITAGE WINDOWS FROM £650
GS20 CORTIZO SLIM 20MM SLIDING DOORS FROM £3450
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
110mm sightlines
Over 150+ RAL colours to choose from
Upto 20 Years Guarantee
0.8Wm2K U-Values
Available in upto 14 panes width
AW-47 SMARTS HERITAGE WINDOWS FROM £650
AW-47 SMARTS HERITAGE WINDOWS FROM £650
AW-47 SMARTS HERITAGE WINDOWS FROM £650
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Highly practical, affordable range of Aluminium Windows available in a range of colours and designs.
Aesthetically pleasing and simple to install.
GW70 CORTIZO WINDOWS FROM £650
AW-47 SMARTS HERITAGE WINDOWS FROM £650
AW-47 SMARTS HERITAGE WINDOWS FROM £650
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Highly practical, affordable range of Aluminium Windows available in a range of colours and designs.
Aesthetically pleasing and simple to install.
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Door leaves up to 3m high
Stunning Heritage (Crittal effect)
Can be used external and internal
Inward or outward opening
Alitherm 400 windows from £600
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Highly practical, affordable range of Aluminium Windows available in a range of colours and designs.
Aesthetically pleasing and simple to install.
smarts signature doors from £1950
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
ALUSPACE INTERNAL DOORS AND SCREENS FROM £1450
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Fresh, vibrant designs.
Our range of Entrance doors are excellent quality, available in a variety of styles.
Quick lead times and a dream to install.
ALUSPACE INTERNAL DOORS AND SCREENS FROM £1450
AD-55 SMARTS HERITAGE FRENCH doors FROM £1850
ALUSPACE INTERNAL DOORS AND SCREENS FROM £1450
ASK FOR OUR WHITE GLOVE PROJECT SERVICE - FULL SUPPLY, SURVEY AND INSTALLATION
Explore Aluspace internal doors and screens – slim, stylish steel-look glazing from Smart Systems, designed to transform modern homes.
Steel look windows in Yorkshire | Full Case Study
Steel Look Windows in Yorkshire | Harrogate Aluminium Windows & Doors
Steel look windows in Yorkshire. 29 Alitherm Heritage windows, bifolds and doors installed in a Harrogate stone home, February 2025
10% off all orders placed before 30th November 2025
Applicable only to orders resulting from new quotes produced from 15th October to 30th November, must include full supply, survey and installation and must include any combination of the below:
Windows/ Bi Folding Doors/ Sliding Doors/ French Doors/ Entrance Doors/ Windows/ Garden Studios, Glass Balustrades, Orangeries.