Structural Glass, Glass Boxes and Glass Extensions

Create a beautiful, clear and frameless extension with custom built structural glass


Our modern structural and architectural glass provides a complete bespoke solution to your glass box house extension, glass roofs, glass walls and walk-on-glass requirements.


Is glass just for windows and doors? ...Absolutely not!

As the name implies, structural glass can be used as an integral part of your building. So why not take a look at how it can transform your home from the run-of-the mill to the out-of-the-ordinary.

The SLG Glazing System

So how does structural glass work? Using the SLG glazing system it’s connected to the main structure by four or more high quality stainless steel fittings. These are attached only to the inner sheet of the double glazed unit, or they can be sealed with a high quality silicone sealant for a bonded glass joint. This provides an aesthetic yet strong structure without any framing or extra support.

The outer sheet of the double glazed units can be designed with energy or solar reflecting coatings and/or silk-screen printing, as it is not penetrated by the point fixings.

Modern Structural/Architectural Glass

Glass is not just a practical aspect of your home, but also plays a part in the overall aesthetic look. With advances in glass technology and functionality, incorporating it into the architectural design of your home is now a common reality.

Our professional team possess a range of experience and knowledge on architectural glass solutions, and are happy to advice on any project.

Scroll down for  more details about Glass Box House Extensions, Glass Roofs, Glass Walls & Building Regulations.

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  Structural Glass, Glass Boxes and Glass Extensions Full Details


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Floor-to-Ceiling Glazing

Insurance Backed Warranty

Buildings Regulations

Structural Glass, Glass Boxes and Glass Extensions - More Details

Glass Box House Extensions

Create a beautiful, clear and frameless extension with a custom built glass box extension.

Structurally strong glazing provides the perfect platform for glass extensions that add light and style to your home. With efficient thermal properties, a glass box is warm in winter, yet with as many openings as you require, cool in summer. No longer the realm of traditional conservatories, the glass box has seen major advancements.

Coupled with architectural design and modern glazing, these extensions provide a popular addition to grace any home.

Glass Roofs

Utilising structural glass in roofing areas provides a new dimension to your room. Particularly useful in rooms lacking in light due to small or inaccessible windows, or where planning restrictions are in force on external windows, glass roofs literally open up your room to the sky.

Innovative glazing advancements ensures your space is maintained at a comfortable temperature, whatever the weather.

With structural glass roofs SLG can also provide glass support beams that can be used for the structural integrity of the roof or for decoration.

Glass Walls

Imagine a view unimpeded by frames or broken by walls, that you can enjoy whatever the weather? That’s what you get with a glass wall.

Push the boundaries and open up any size room with floor-to-ceiling glazing that lets you appreciate what nature provides for free. Acting as a translucent barrier between your internal space and the beckoning space beyond, glass walls are created to share the two worlds.

Don’t let your imagination limit the endless possibilities that glass walls bring to your home. Create space in claustrophobic rooms, or warmth in over large rooms. Bring personality into a bland open plan design, or light into your bathroom.

Structural Glass, Glass Boxes and Glass Extensions Example Pricing & Options

Specialist Lifting & Installation Team/Equipment

Some properties are not built for moving large panes of glass around. Small country cottages with tiny doorways, or modern houses with spiral staircases, or high-level properties with poor access; all of these may have struggled in the past with fitting structural glazing.

Slimline Glazing employs a team of professional glazing installers with specialist lifting equipment to ensure your home does not have to miss out on the wonders of structural glazing. We supply all the necessary plant machinery if it requires lifting over the house or high walls.

Whatever your property, with its twists and turns, its cosy corners and hidden heights, our specialist team will make sure your structural glazing dreams are realised.

Structural Glass, Glass Boxes and Glass Extensions FAQ's

Structural Glass, Glass Boxes and Glass Extensions Energy Rating

Building Regulations

At SLG we comply with all aspects of current Buildings Regulations, with particular attention paid to the new Part L and Part N requirements. That all necessary testing and engineering has been carried out and reports are available to demonstrate compliance.

Thermal Properties;

The new Part L of the Building regulations covers the conservation of fuel and power in dwellings. Specifically, it governs the minimum thermal properties that glass, walls, roofs and windows must achieve.

The SLG System has been independently tested on different projects enabling us to reach the current requirements for U Values of a maximum of 2.2 W/mK, SLG exceed this with average U-value of around 1.6 W/mK.

This thermal efficiency has been achieved by optimizing both the type of low E coating used and edge details. Silicone Edge Sealed units are Argon filled to achieve the required u-values.

Warranty

The SLG comprehensive warranty gives customers total peace of mind. All materials are warrantied for up to 10 years, workmanship and maintenance is for a period up to 5 years, though we anticipate that a SLG will give trouble free service well beyond that time period.

Useful Information and Downloads

Reviews

Simply fabulous!

Review of Slimline Glazing & Aluminium Systems
Rosie Taylor
5 out of 5

From start to finish Bob was helpful, knowledgeable and most importantly always available. Our job turned out to be more complicated than we anticipated but Bob found a way to resolve the issues and most importantly, satisfy our Building Control officer! Thank you for a wonderful end product!

SL20 Otimma Sliding Doors

Review of Slimline Glazing & Aluminium Systems
Jez
5 out of 5

We had 12mts of SL20 Otimma sliding doors installed and they look stunning! Best system on the market. We are equally impressed with the aftersales support as when one of the doors needed adjusting due to small movement of the new house they came within a day. Special thanks to Tony and Bob.

Compliments to the Fitters

Review of Slimline Glazing & Aluminium Systems
Ian, Surrey
5 out of 5

Great start today. Windows looking good so far. Brilliant workmanship. Compliments to the fitters for looking after the house so well and working so hard in the soaring heat! I cant wait to see the finished article.

Sliding Patio Doors

Review of Slimline Glazing & Aluminium Systems
N.L Oxford
4.5 out of 5

Dear Tony, The guys have just left. They did a great job of the sliding doors in all respects; they look terrific and I am really pleased with it.

Slimline Sliding Doors

Review of Slimline Glazing & Aluminium Systems
Nigel, SE7
4.5 out of 5

The guys finished the installation of the slimline sliding doors. It is a great product; I am pleased. The installation team were very pleasant and competent, with a good focus on quality and attention to detail.

Doors, Lantern and Window

Review of Slimline Glazing & Aluminium Systems
Duncan
4 out of 5

Fantastic product. Delivered on everything they said they would. Makes the room look amazing...would highly recommend.

Very Pleased with the Fast and Efficient Service

Review of Slimline Glazing & Aluminium Systems
Becky, Surbiton
5 out of 5

I just wanted to say that I am very pleased with the service so far. I put in a query on Tuesday evening, had a conversation with Joanna Wednesday morning, had support from the installation team yesterday (Thursday) afternoon and placed the order at 4pm. Thank you so much for a fast and efficient service so far.

Simply Brilliant

Review of Slimline Glazing & Aluminium Systems
Karen Gallagher, London
5 out of 5

Your guys came yesterday and did a brilliant job finishing off. They were also very polite and tidy. We would like to say a big thank you to you for all your help and support - and going the extra mile to give us an amazingly professional service. You have been quite simply brilliant and we really appreciate it.

An Absolute Pleasure to Have Working in My Home

Review of Slimline Glazing & Aluminium Systems
Nick Evans, lONDON
5 out of 5

The windows are absolutely beautiful - but we appreciate this is importantly down to expert installation - please pass on a big thank you to all the installation teams. Each and every one - who have been outstanding craftsmen, highly professional in their approach and an absolute pleasure to have working in my home. We feel very fortunate to have found Slimline after our loft company builders had let us down on the architects specification for the windows

Everything as promised and the doors look amazing

Review of Slimline Glazing & Aluminium Systems
Mr Taylor
5 out of 5

I contacted slimline for sliding doors for my home. Its not easy getting to see them but slimline had a 6m set of sliding doors in their showroom. An excellent product and eight weeks after survey as promised ...they are in. Well done to everyone at Slimline. Highly reccommended

The walk on glass is amazing!

Review of Slimline Glazing & Aluminium Systems
Flora - Islington
5 out of 5

Many thanks for the work that was carried out at the house. By the way, the walk on glass is amazing! The guys have done a very good job!

Very helpful and did a good job

Review of Slimline Glazing & Aluminium Systems
Colin North - London
5 out of 5

To confirm that our French doors/windows unit was successfully installed today and we are very pleased with it. Your installation team were very helpful and did a good job making a very neat installation and finishing off the frame edges abutting the wall. We look forward to the installation of the glass balcony.

One less headache

Review of Slimline Glazing & Aluminium Systems
Irwin
5 out of 5

Undergoing a full reconstruction and extension of our flat has been quite an undertaking and Tony Hall has taken what could easily be another headache and made it as fluid as I could imagine. Always contactable, it's like having your own project manager! Highly recommended.

A Great Glazing Range from Contemporary to Traditional

Review of Slimline Glazing & Aluminium Systems
MTA Architecture & Design
5 out of 5

We have specified glazing from Slimline on a number of our projects (including a recent extension in Knightsbridge, London). They have a great range of elegant products from contemporary to traditional.

Excellent Customer Service

Review of Slimline Glazing & Aluminium Systems
Berkeley Homes (South East Londonl) Ltd
5 out of 5

Just a short note, to say Thank you very much for consideration and efforts on past week. You really pushed the boat out on our meeting in the factory on Saturday, to touch and compare the doors. It’s had the desired affect and we shall move on now with Slimline Aluminium throughout. Again, thank you for your excellent customer service.

Great people to deal with

Review of Slimline Glazing & Aluminium Systems
Phil Hodgson
5 out of 5

Recently had a walk on glass roof fitted. Don't usually do reviews Slimline gave a good price and Bob in sales was a pleasure to deal with and discussed in a very informed way. Surveyor Tony very helpful and went out of his way and fitters also professional. Felt confident in job - will use again.

SL20 SLIDING PATIO DOORS

Review of Slimline Glazing & Aluminium Systems
Rob sykes
5 out of 5

We had a side extension built by Slimline glazing. Dan, the builder, was great and the work force very professional. I have to say the doors made the finishing touches - they are great. Great job all round.

Walk on Glass

Review of Slimline Glazing & Aluminium Systems
Mr Moorecroft, NW6
5 out of 5

I had some walk on glass fitted yesterday, which covered a big area. Slimline fitted all the steel work for installation prior to the glass. The finishing was great and they matched the mastic to the patio slab so it all blends in and looks great. We're really pleased.

Glass Extension

Review of Slimline Glazing & Aluminium Systems
Sarah Holmes - SW6
4.5 out of 5

We had a glass extension installed last week and it is great. Everyone was so helpful and the installers worked really hard. Everyone has commented on how it looks. Thanks!!

They Look Great !!!

Review of Slimline Glazing & Aluminium Systems
Peter Cummings - NW1 London
4 out of 5

We had 2 sets of the slim sliding patio doors and some walk on glass fitted just before Christmas. It was touch and go if it was going to be done before the festive season, but slimline glazing did really well and got our build water tight in time. We're really happy with the product and service. Well done to all.

We're really pleased

Review of Slimline Glazing & Aluminium Systems
Debbie
5 out of 5

Thanks to everyone at slimline for being so professional and polite. They were always willing to help. We had a big set of sliding doors, 2 roof lights and a large glass roof fitted. They have really finished the build off thanks again. Mrs D Ingles, Eastbourne

Last Weeks Glass Installation

Review of Slimline Glazing & Aluminium Systems
Neil Marks
5 out of 5

I just want to say how pleased we are last Thursday the final piece to our puzzle was installed we have a property in West London and we were having a big glass roof fitted we had no access through the house so each piece of glass had to be craned over the house it looks fantastic!!

So pleased with the results

Review of Slimline Glazing & Aluminium Systems
Steve & Jane Wilmslow
5 out of 5

We were recommended by a friend at work to get a quotation for the glazing as we were having a fairly large extension and the back of our house re-built and modernised. Everything was going great until our builder went bust and left us in a dilemma. Tony at the Slimline office helped us obtain a new builder and Slimline then took over the remainder of the construction works - installing their doors and windows. It took a little longer due to the hiccups we had but we are so pleased and grateful for the results.

Project in Battersea

Review of Slimline Glazing & Aluminium Systems
Greg Hastings
4.5 out of 5

I commissioned Slimline Aluminium to provide a glazing package for our project in Battersea. We had sliding doors, balustrades, an electric roof light, plus some additional windows and doors. Slimline worked well with our contractor and deliverd on time - great job!

Walk on Glass project

Review of Slimline Glazing & Aluminium Systems
Robin Walker. SW1
5 out of 5

I used Slimline for a Walk on Glass project in central London. The quality of the works is second to none and I was informed all the way through the project. I was very happy and so was my customer. I’ve since used slimline glazing on a project that involved a very complex structural glass extension. They provided all the right help from the glass and structural engineers and all drawings were designed correctly - which made the installation process a lot easier, really happy!!

3 panel sliding doors

Review of Slimline Glazing & Aluminium Systems
Mr Mikal - Ealing
4.5 out of 5

We had a 3 door set of Slimline's sliding doors installed at our property in Ealing 2 months ago. They are so easy to slide and the middle sections are so narrow. it’s great when the doors are shut as there are no thick frames that obstruct the view. We have recommended at least 3 people so far. I must say, our friends do not stop commenting on them.

Roof lanterns

Review of Slimline Glazing & Aluminium Systems
Café Italia
4.5 out of 5

Slimline Glazing installed a Slimline roof lantern for us at our restaurant when we had the refurb done, everyone one who walks in asks us were we got it from it really sets off the area were we had the work done it lets in so much light they weren’t the cheapest but the quality was second to none but everyone was so polite from start to finish and met all our requirements.

Thank you Slimline Glazing

Review of Slimline Glazing & Aluminium Systems
Jane - Surrey
4.5 out of 5

I've just had a new set of SL17 sliding doors installed by Tony and his team. What a great job. The doors have transformed my old gloomy kitchen into a bright space that's enjoyable to use again.

sl600 aluminium door

Review of Slimline Glazing & Aluminium Systems
P.T Manchester
4.5 out of 5

Although we initially wanted the sl17 doors (which are amazing but a little out of our price bracket), we opted for the sl600 in the end - which were still expensive but did fit in to our budget. We are so please with them. They're great modern door and really don't feel like a compromise. we would (and have) recommend Slimline and their doors to anyone.

Blog Posts

Slimline Glazing Wins the 2017 Sustainable Building Awards
Posted on 22/08/2017 in Property

For the second year running, we are delighted to announce that Slimline Glazing and Aluminium Systems have won the Sustainable Building Awards - London. With this award, we continue to show the world how eco-friendly aluminium doors and windows are.

read full article

Planning a House Extension?
Posted on 27/07/2017 in Property

Is your home starting to feel a bit snug? Perhaps your family has expanded beyond your original walls; sounds like it's time to think about planning for an extension.

read full article

Case Study: Glazing a modern 'Tailored House' in Kensington and Chelsea
Posted on 18/01/2016 in Case Study

Although technically a new build, there was previously a house at the end of this Victorian terrace in Kensington and Chelsea. However, it was destroyed by bombs in World War Two. The house is in the centre of the Brook Green conservation area - located close to Kensington Olympia, Hammersmith Broadway and Shepherds Bush.

read full article

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