Supply and Install

ALUMINIUM WINDOWS & DOORS SUPPLY & INSTALL UK | THE FENESTRATION NETWORK

AB-38 Slimline Smarts Bifolding Doors | The Fenestration Network

Ultra-slim 88mm sightlines

Available with or without Crittal effect

Over 150+ RAL colours to choose from

Upto 20 Years Guarantee

Max Width per pane – 1300mm

Max Height – 3000mm

U-Value: 1.0W/M2K

Available in over 19 configurations

PRODUCT REVIEW COMING SOON

ALUMINIUM WINDOWS & DOORS SUPPLY AND INSTALL UK

The Fenestration Network supplies and installs Premium Aluminium Glazing for homeowners across the UK. From modern windows and bifold doors to sliding and heritage systems, we deliver industry-leading products with expert nationwide installation.

Trusted Nationwide Experts

VIEW OUR ALUMINIUM PRODUCTS

SHOWCASING JUST SOME OF OUR RECENT PROJECTS ACROSS THE UK:

2no. AW47 Bay Windows

Pastel Green

London October 2025

Why choose The Fenestration Network

Homeowners across the UK trust us for aluminium glazing because we combine national buying power with local service and installation expertise:

• Fully qualified Aluminium glazing installers

• Nationwide coverage – local installers, national support

• Premium aluminium systems from leading UK brands

• Energy-efficient, secure, and beautifully finished

• Fast quotes, clear communication, and aftercare

Call us to discuss

NATIONWIDE GLAZING SUPPLY | THE FENESTRATION NETWORK

Complete Aluminium Glazing Service

We offer a full service – from product specification and supply to professional installation. Whether you're renovating your home, replacing old glazing, or building new, our aluminium systems combine design flexibility with exceptional performance.

• Aluminium windows supply and installation

• Aluminium bifold doors supply and fit

• Aluminium sliding doors installation

• Heritage and steel-look glazing systems

• Nationwide coverage with trusted local installers

email us to discuss your project

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.

EXPLORE THE RANGE OF WINDOW AND DOOR SYSTEMS WE SUPPLY AND INSTALL NATIONWIDE

Aluminium Bifolding Doors From £2750

Ask for our White Glove Service – full supply, survey and installation across the UK with Local Teams

88mm Sightlines available – Flush Thresholds – Low U Values

Go to "Products" for more information & our Brochure

BUILDING & EXTENSIONS, EXPERT INTEGRATION WITH GLAZING

BUILDING SERVICES, EXTENSIONS & ORANGERIES — EXPERTLY INTEGRATED WITH GLAZING

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

high-performance glazing

, all delivered by specialists who understand both disciplines.

EXPLORE OUR BUILDING SERVICES

WHAT CUSTOMERS NATIONWIDE THINK OF US:

SAVE MONEY – WE DELIVER THE WHOLE PROJECT – SUPPLY & INSTALL

AB-38 SLIMLINE SMARTS BIFOLDING DOORS FROM £3250

ASK FOR OUR WHITE GLOVE PROJECT SERVICE – FULL SUPPLY, SURVEY AND INSTALLATION

go to AB-38 bifolding doors

AB-60 Premium smarts bifolding doors FROM £2750

132mm sightlines

U-Value: 1.4W/M2K

go to ab-60 bifolding doors

AS-20 smarts slim 20mm sliding doors FROM £3250

Cortizo cor vision 20mm sliding doors FROM £2950

Ultra slim 20mm sightlines (Central mullion)

Over 200+ RAL colours to choose from

Available in 2 or 3 track

1.6 W/m2K U Value

go to AS-20 sliding doors

Frame depth 116 mm / 182 mm 3 rails Sash depth 37 mm

Interlock 20 mm

go to cortizo cor vision sliding doors

GS20 CORTIZO slim 20mm SLIDING DOORS FROM £3450

AW-47 SMARTS HERITAGE WINDOWS FROM £650

Slim 20mm sightlines

Standard or Flush Stacking

1.3 W/m2K U Value

go to GS20 SLIDING doors

GB-49 Cortizo bifolding doors FROM £2950

110mm sightlines

0.8Wm2K U-Values

Available in upto 14 panes width

go to GB-49 bifolding doors

Highly practical, affordable range of Aluminium Windows available in a range of colours and designs.

Aesthetically pleasing and simple to install.

go to aw-47 heritage windows

GW70 CORTIZO WINDOWS FROM £650

go to gw70 casement windows

AD-55 SMARTS HERITAGE FRENCH doors FROM £1850

Door leaves up to 3m high

Stunning Heritage (Crittal effect)

Can be used external and internal

Inward or outward opening

go to AD-55 HERITAGE FRENCH DOORS

Alitherm 400 windows from £600

go to alitherm 400 windows

smarts signature doors from £1950

Aluspace internal doors and screens from £1450

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.

go to smarts signature doors

Explore Aluspace internal doors and screens – slim, stylish steel-look glazing from Smart Systems, designed to transform modern homes.

go to Aluspace Internal Doors and Screens | Fenestration Network

Aluminium Sliding Doors From £2950

Ask for our White Glove Service – full supply, survey and installation across the UK with Local Teams

20mm or 25mm Sightlines available – Low U Values – Soft Close

Go to "Our Products" for more information & our Brochure

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.

, 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.

maintenance@thefenestrationnetwork.co.uk

Fenestration Network White Glove Service | Windows & Doors

Fenestration Network White Glove Service | Windows & Doors Expertise

The Fenestration Network White Glove Service. Expert advice, survey, installation and aftercare for windows and doors, with trust and precision.

go to Fenestration Network White Glove Service | Windows & Doors Expertise

Aluminium French Doors (with and without Crittal effect) From £1850

Ask for our White Glove Service – full supply, survey and installation across the UK with Local Teams

Which regions do we cover?

The Fenestration Network are

Nationwide Supply and Installation experts in:

Aluminium Bifolding doors / Aluminium Sliding doors / Entrance Doors/ Heritage french doors/ Aluminium Windows/ Garden Studios, Glass Balustrades, Orangeries.

Our teams have over 35 years experience supplying and installing quality Glazing products across the UK. We have teams of Surveyors, Installers and Technical Experts close to you to help guide you through your project.

We cover all regions on this map with our professional and highly skilled , local surveyors and installers.

020 341 10038 – South

01768 254552 – Rest of UK

projects@thefenestrationnetwork.co.uk

It's important that you know what you're potentially purchasing.

Whether it's Aluminium bifolding doors, Aluminium sliding doors, Heritage french doors or our other products, we delve into the products we offer with detailed reviews, covering all Technicals aspects including functionality, design and configuration and much more:

CALL US ON 020 341 10038/ 01768 254552 ALUMINIUM WINDOWS & DOORS SUPPLY AND INSTALL UK

GS20 Sliding Doors Review

AS-20 Sliding door Review

AB-38 Slimline Bifolds

AD-55 Heritage FrenchDoor

AW-47 Heritage Window

AB-60 bifold doors Review

Cortizo GB49 bifold doors

Aluspace Internal Doors

01768 254552

020 341 10038

Caera Mahoney

19:17 05 Dec 25

We were originally going to order our patio doors supply only and get our builders to fit them, but after reading some of the advice from Nick at doorandwindowexperts we realised it was too big a risk for such an important and expensive purchase. Nick recommended Tom at The Fenestration Network and from the very first contact we felt really looked after; no question/query was too much trouble and we received a truly individual service. We opted for the full survey, supply and fit even through it stretched our budget and I'm glad we did. The communication was great, the lead time was reasonable and the fitters were really lovely. We are very happy with our new doors! 😊

Simon Bates

08:46 02 Dec 25

Fantastic service from start to finish Tom was great to deal with along with the Survey meeting the lads before they started to double check everything. The fitting team turned up on time today with the delivery also was almost finished for 11 o’clock very impressive., Considering the size of the units and the Power needed to do this job was very difficult and had to be thought out and planned correctly they nailed it, the trimming and silicone’s skills were second to none . Will look forward to using this business again for any window door installation , large profile glass installation.Etc

tracy wake

17:44 14 Oct 25

Great company to deal with professional and extremely knowledgeable exactly what we as the supplier and the end user (customer) needs

Allan Barker

18:18 10 Oct 25

Fenestration network have supplied and fitted some top class bi-fold doors in our extension project.
A clear payment plan which is in line with all top window/door suppliers
Good communications throughout the process
The company was found with assistance of an online expert who is keen to advise on reliable, expert supply and fit companies at a reasonable price, not expensive like some other companies I visited.
If you have a building project I would recommend Fenestration Network, make contact and speak with Tom.
They will be able to advise on different types of doors depending on your requirements.
I would highly recommend you contact Febestration Network for stunning, top quality, High end doors.

Matthew Hall

16:25 01 Oct 25

I have really enjoyed working with The Fenestration Network. Every job I have been involved in has been exactly as described, with the team always being friendly and professional. When I have been on site to capture footage of properties with new glass and glazing supplied by them, the installations have looked amazing both in person and on camera.

Customers I have spoken to while on site have also told me how impressed they are with the quality of the products and services provided by The Fenestration Network.

From a drone filming and marketing perspective, the aluminium glazing products, windows, doors, and bi-folds have been fantastic. They come in a wide range of colours, which not only gives each home a unique look that perfectly matches and complements the property, but also makes the promotional videos stand out with variety and style.

The Fenestration Network clearly delivers exactly what their customers want, both in quality and in choice.

Paul Craddock

11:37 19 Sep 25

We had windows and doors supplied and fitted by Tom and his team and apart from their prices being very competitive, the quality, look and service was excellent. To add to this, Tom gave us a discount for allowing him to have a drone take pictures which will happen once all the rendering is finished. I would highly recommend them to anyone. Thank you Tom and the team

Robert Knight

10:21 29 Aug 25

I contacted Tom Evans of The Fenestration Network for my recent, significant, aluminium window supply and install project. I found Tom easy to work with and thorough on endeavouring to get everything right before the project started. There was no pressure to rush things, but he was quick to action anything needed. The installation team he used in my area of the country was polite, hard working and personable. Overall, I valued his high personal integrity displayed thoughout the project.

Stuart Wilson

08:10 15 Aug 25

From the first contact with Tom from the Fenestration Network they were very professional and very responsive.. They had been passed our project idea and I gave approximate sizes for bi-fold doors/windows for our outside terrace…

We wanted to fully enclose it, within 48 hours Tom came back to me with a priced quote which was exceptional…. Full detailed drawings of each view suggesting top openers on one side…. My experience has been first class, I have previously been in the Architectural industry for 12 years manufacturing these type of products and was impressed how this company worked.

I agreed the price and within 1 week Tom had arranged for a site survey to finalise the dimensions…. The installation team that Tom used for the survey and installation were very good and very keen to do a fantastic job, the 2 guys (Matt & Gary) couldn’t do enough for us.

The end product was a great addition you our property giving us a fantastic room which we can use all year round.

I would have no reservations in recommending this company for any projects you are planning in the future…

See attached video of the finished project.

Matthew

15:19 13 Aug 25

Excellent from start to finish very professional company to deal with and great products

Bradley Roberts

12:14 08 Jul 25

We used The Fenestration Network for the replacement and installation of all our windows and patio doors as part of our renovations. We ran into some difficulties during the installation but the team were dedicated to getting us back on track! Would recommend to others looking for window and door installers.