Aluminium Doors

Thin, yet strong.

Aluminium doors.

Our aluminium doors come in two systems, Smart and our DWL Architectural slimline sliding and folding range in partership with Alumil. The range is as follows.


Smart Visofold 1000 bi-folding door

Smart Visofold 6000 bi-folding door

Smart Visoglide Plus Sliding door (Lift & slide option available too)

DWL Architectural range in partnership with Alumil

DWL Architectural S650 Slimline Sliding door

DWL Architectural S440 Sliding door

DWL Architectural S700 Lift & Slide door

DWL Architectural SF85 Folding door

DWL Ultraline Slimline sliding door range

Whichever you choose, they will all be fitted with durable hardware, secure locking mechanisms and come in a range of RAL colours to suit any need. As always, any of our team will be more than happy to tailor the colour, hardware, threshold details and overall design to suit your home and needs.

Our aluminium doors come as single, double, bi-folding or sliding doors, using Smart and our DWL Architectural range. Our team will be more than happy to demonstrate the differences at our Kent showroom.

Why aluminium?

There are, of course, differences between Smart and the DWL Architectural range doors. Mainly in that our Architectural range doors can be made wider and higher than Smart ones and are more thermally efficient than Smart ones as well as being slimmer. Whichever system or design of aluminium door you go for, they all have the following in common.

  • Market-beating thin frames.
  • Double and triple glazing both available where necessary for thermal or noise insulation.
  • A fantastic range of colours. With Smart’s Sensations range and over 200 RAL colours to choose from in a matt or gloss finish, you’re sure to find exactly the right colour for you and your property.
  • Longevity. Not only is the colour, the metal and the marine-grade powder coating guaranteed for 25 years but the sturdy and robust feel of aluminium appeals to many of our customers.
  • The option to have shiny chrome, matt chrome, black, white or gold handles.
  • The option to have low anti-trip, easy-access thresholds on single and double doors.
  • The ability to have single, double and bi-folding aluminium doors opening inwards or outwards to suit the situation.
  • A full 10 year insurance-backed guarantee on all aluminium doors plus 25 years on metal integrity and the powder coated colour.
  • Here’s a video of our guys installing two sets of Schuco ASS70 FD bi-fold doors into a Kent property over a day.

Architectural slimline sliding doors

Taking things up to another level, our range of architectural slimline sliding doors boast an industry leading 20mm sightline. They glide effortlessly and feature an electronic locking system. This means there are no handles on show!

We can add frameless glass corners onto our doors as well as floating corner posts to fully open up the corner of your home.

What’s more, they are all made in Britain!

Test them all out for yourself.

At our showroom, we have installed all types of aluminium doors for your perusal.

When choosing the right aluminium doors for your property, we think it only right that you are presented with all of the design, colour and hardware options so you’re absolutely satisfied you have made the right decision before doing so. This is why we have invested so much time into designing our showroom just outside Maidstone, Kent. We’re in Millbrook Garden Centre, Staplehurst Road, Marden, Kent, TN12 9BT.

Thin but tough.

To go hand in hand with the sturdy and solid aluminium frames, all of our aluminium doors fitted with the latest multi-point locking mechanisms. Explained below are some of the key security features in more detail.


  • Multi-point hook bolt and shootbolt locking

As any of our team will show you at our showroom, we use multi-point shootbolt locking mechanisms with additional hook bolts on all of our uPVC doors. What this essentially means is that turning the key to lock the door is the final step. Before that, when you move the handle up to lock the door, hook bolts come out of the door slab and lock into keeps in the door frame. In addition to this, shootbolts also engage into stainless steel keeps at the top and bottom of the door frame.


  • Extra 40mm thick door slabs available

Our standard uPVC door slab is 28mm thick. For some of our customers, when additional security is a must, we use a 40mm thick door slab. This not only makes the door more secure, but makes it feel more robust during operation too. We have this 40mm door slab on show at our showroom as well as a 28mm one, so you can compare the two for yourself and decide whether it warrants the marginal extra cost.

Not just slim frames, a slim carbon footprint too.

Whether you choose Schüco, Smart, single, double, sliding or bi-folding doors for your home, all will come with the latest polyamide thermal breaks for the best possible energy efficiency and will be double weather sealed against heat loss, water ingress and draught. If U-values and energy efficiency are particularly important to our customers or their building inspector or architect, we tend to go down the Schüco route as our Schüco doors do achieve amongst the best U-values on the market.


  • Thermally broken aluminium

Aluminium being “thermally broken” doesn’t really mean much to most of us. “Thermally broken” just refers to the polyamide thermal break that now runs all the way through an aluminium window or door. Twenty years ago, aluminium windows and doors used to be aluminium all the way through, meaning the cold could travel straight through the window or door from the outside through to the inside completely unobstructed. This not only meant that aluminium windows and doors of old were very poor thermally, but this also caused condensation on the metal on the inside of the window, which can then cause mould and water running down onto painted walls, which many of our customers have experienced in the past. A thermal break stops this. A thermal break “breaks” the cold transfer because it is made out of a composite polyamide material that does not conduct the cold like metal does. By thermally breaking all of our aluminium windows and doors, we can reassure our customers that not only will our windows achieve the highest WER rating on the market, but also that they will not have any condensation either.


  • Modern spacer bars

Spacer bars are the what separates the two (or three) pieces of glass in a double or triple glazed unit. Until a few years ago, the industry standard was for this spacer bar to be made out of metal. If your windows and doors are more than 5 years old, the chances are, they will have metallic spacer bars. This kind of spacer bar is still available and is still used by some companies to save money. The only problem with these metallic spacer bars is that they give a clear route for the cold to travel straight through the bar and make the glass area on the inner pane around the metallic bar cold, causing condensation all the way around the edge of the glass, which many people have experienced in the past without knowing the cause. PARA In all of our products, aluminium doors very much included, we now use what’s called ‘warm edge composite spacer bars’, which are made out of a composite material designed not to transfer the cold meaning the glass on the inner pane does not get cold as it does with metallic spacer bars. By only using modern warm edge composite spacer bars, we can ensure that our customers don’t experience condensation on the inside of their windows whilst, of course, improving the BFRC energy rating of the door too. The standard colour for these bars is black, but we can also offer them in in white.


  • Argon-filled glazed units

Whether you choose double or triple glazing, all of our glazed units are argon-filled as opposed to the less efficient air-filled units. This applies to glazed units with Georgian bar and to leaded units too. Argon is a noble glass which means it doesn’t react to anything as much as normal air does. This means that heat is not lost as easily through the unit. If you use air-filled glazed units, the heat can escape through the unit much more easily. This of course contributes to the overall energy rating of the window.

The best glass.

All of our aluminium doors, whether Smart or Schüco, are only fitted with the latest glass. All of the glass in our doors is toughened and we sometimes upgrade the thickness of each pane from 4mm up to 6mm/8mm for particularly large units, often found in our large aluminium sliding doors.

Energy-wise, we use Saint Gobain Planitherm Total Plus glass as standard in all of our products. In situations where building control or architects have specified a certain thermal U-value, we can upgrade the glass to use Planitherm One glass to further improve thermal efficiency. These modern glass types work to make our customers homes more thermally efficient in the following way.

On the inside pane we use the latest magnetron-coated ‘Low-E’ or Low Emissivity glass, which has an invisible coating on it that dramatically reduces heat transfer and also increases heat reflection back into the room. Therefore, glass without a low-e coating will absorb the heat from your home and radiate it out onto the colder outer pane, where it is more easily lost. Low-e glass has a special coating which is a poor radiator of heat and does not allow heat to be transferred to the outside.  Instead, the low-e coating actually reflects the heat back into your room.

On the outer pane, we use an ultra-clear Low Iron Glass, which not only allows as much light in as possible but also brings in the suns rays increasing the windows ‘solar gain’, which means you’re heating up your home with free energy from the sun as opposed to reflecting it back out as you would with other less energy-efficient glass.

The importance of energy efficiency is summed up by the British Fenestration Rating Council’s (BFRC) introduction of the Window Energy Ratings Scheme. With this universal rating scheme, it is now possible to independently measure the efficiency of windows just as you would with cars, fridges or washing machines. This is great news for the consumer who now have a much better idea about the thermal efficiency of the windows they are buying.

The BFRC rate the windows from A+ to G, with A+ being the most energy-efficient and G being the least. Those achieving a C-rating or above demonstrate they have been designed, manufactured and tested to provide a good level of overall thermal efficiency. Thankfully, all window installers must install at least a ‘C’ rated or above window.

We’ve got it covered. All of our aluminium doors come with a full insurance-backed guarantee.

To give our customers complete peace of mind, not only do we guarantee our aluminium doors for the installation, handles, hinges and the glazed unit for 10 years and the metal and colour for 25 years, but we also pay to have that guarantee insurance-backed. This means that if anything happened to us as a company, our customers are still fully covered if there were any niggles or problems with the product, giving that added peace of mind. Everything except accidental damage or misuse is covered.

We are also members of CERTASS, who are a recognised governing body designed to improve the workmanship and customer service in our industry. CERTASS anonymously check much of our work to make sure we’re doing what we should be.


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