How To Request A Quote

If you want to get a quote for one of our products there are several options available to you:

Please be aware that we need quotation requests in writing and cannot provide prices over the phone. If you require a Trade Price we need a company letter head or purchase order.

What Information Do We Require?

In order to process your quotation request and provide you with an accurate price, we require the following information (click here to see an example of the information we need):

  • The product you wish for us to quote. (i.e. aluminium windows)
  • The system you wish for us to quote. (i.e. Premium Plus Windows)
  • The product details, including; sizes, colours, glass, styles and designs for each item.
  • Any additional information, requirements or specialist instructions. (For example... I require; direct fix outerframes, internally glazed sashes, trickle vents, a 150mm projection cill etc.).

Please note: All of our products are bespoke and made-to-measure, to your exact specifications.

For more help and advice on specifying or pricing our products please call us on (01268) 681612.

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Royale Aluminium Sash Windows

Heritage Windows

Royale Aluminium Sash Windows

Our Vertical Sliding Aluminium Windows incorporates the traditional styling of wooden box sash windows with the advantages of a thermally broken aluminium profile. A stylish, low maintenance and authentic sash window that is suitable for use in heritage and conservation areas, or where Georgian and Victorian architecture is predominate. Why not see these windows for yourself.

Visit Our Exhibition Centre

Polyester Powder Coat Paint

Polyester Powder Coat Paint

Our aluminium products are all painted in a hardwearing, maintenance free, polyester powder coat paint. The paint finish is built to last and baked hard onto the aluminium.

As a result these aluminium sash windows can come in many different colours and a ten year guarantee. They are available in a standard white, our comprehensive KL colour range or any of over 200 RAL colour finishes.

Traditional Styling

Traditional Styling

We have designed our Royale Sash Windows specifically to replicate the appearance of traditional box sash windows - providing a cost effective & low maintenance alternative that will retain the character of your property. It incoporates sash horns, slim 18mm sealed units and a putty-line / chamfered sash detail - all with a view to making these windows as authentic as possible.

We also have a ‘Hammerite‘ style textured paint that has a rustic finish, which gives a more authentic look.

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Concealed Limit Stops

Concealed Limit Stops

You may wish to restrict the opening of your sash windows, perhaps for health a safety reasons. These windows come with an option for concealed Weekes catches, which act as Limit Stops (Travel Restrictors). These Limit stops are clean, discreet and unobtrusive and you can choose to have your windows manufactured to restrict the clear opening to any given height.

Traditional Hardware Options

Traditional Hardware Options

Our Royale Sash Windows have a wide range of traditional hardware options available to dress your windows, including key locking Fitch Catches, Ring Pulls, Tilt Knobs, D-handles and Scroll Lifts (Sash Hooks).

All hardware is available in a range of different colours. Available colour are: White, Gold, Chrome and Brushed Stainless Steel.

Slim-line Aluminium Profiles

Slim-line Aluminium profiles

Our Royale Aluminium Sash Windows have been designed to be very slim with meeting rails at just 42mm and double glazed sealed units of just 18mm, resulting in slim sliding sashes with jamb sight-lines of 88.5mm.

When replacing existing timber sash windows it's important that the replacement windows are nice and slim, in order to maintain the character and integrity of your property.

Traditional Glazing

Traditional Glazing

Traditional Glazing Options

We have limitless glass for you to choose from, including:

  • Square and diamond leads.
  • Georgian bars
  • Astragal Bars
  • Patterned & coloured glass
  • Obscure & textured glass

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Optional Sash Horns

Optional Sash Horns

Sash horns are available on our Royale Sash Windows. Sash Horns were an integral part of Traditional sash windows, designed to strengthen the joints and prevent the sashes being opened too far. Although redundant on modern windows, they are still a fundimental feature of the aesthetic appeal of the traditional box sash, and are therefore still used when replicating the appearance of original sash windows.

Thermal Efficiency

Thermal Efficiency

This window system is very thermally efficient and meets Doc L of the Building Regs. It is suitable for New Build as well as Replacement and Refurbishment projects.

It has a 126mm fitter friendly outerframe with a double polyamide thermal break and uses 18mm krypton gas filled sealed units to achieve excellent U values and Window Energy Ratings (WER) as high as B.

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Glass & Glazing Options

Glass & Glazing Options

The glass for our sash windows is slim 18mm krypton gas filled sealed units. You can choose between a wide range of different glazing options, including our unique fitter friendly clip-on A-shapped astragal bars, used to replciate Georgian style windows.

Other options include square or diamond leads, patterned / decorative glass, obscure and textured glass.

75mm Deep Bottom Rail

75mm Deep Bottom Rail

A deep bottom rail is available for our Royale Sash windows. Traditional Box Sash Windows had deep botom rails to compensate for the slopping cills and excentuate the slim lines of the horizontal meeting rail, jambs and head sections of the sliding sashes.

This is a feature that is indicative of any authentic sash window and makes our sash windows very sympathetic to the originals.

Tilt-in Easy Clean Facility

Tilt-in Easy Clean Facility

Both the top and bottom sliding sashes can fully tilt-in as standard. This allows quick and easy access to the external glass for cleaning.

To tilt one of the sliding sashes simply pull both the tilt knobs directly away from the outerframe to release the tilt latches, and the sash will be free to tilt. The amount that the sashes tilt inwards can be restricted with the use of tilt restrictors.

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Duration VS Plus Vertical Sliders

Vertical Sliding Aluminium Windows

Our VS Plus Sash Windows have a square, clean and simple design that is suitable for most applications. It is perfect for use in all types of modern architecture and provides a low maintenance alternative to timber sash windows.The operation of the VS Plus is easy and relaible, providing excellent natural ventilation, which makes it highly suited to high occupancy or commercial buildings.


These windows come with a range of robust and attractive hardware options and features a 'tilt in' operation to facilitate cleaning of the external glass. The VS Plus also features concealed drainage and an attractive concealed coupling option allowing two VS Plus windows to be seemlessly coupled together.


Technical Specifications

The sizes detailed below are for guidance only, if the sizes you require are less than the minimum or exceed our maximum recommended sizes - please ask our technical department for advice.

Recommended Sizes
Width Height (min 750mm)
500mm - 1250mm 2800mm
1300mm - 1350mm 2500mm - 2200mm
1400mm - 1450mm 2000mm - 1800mm
1500mm - 1600mm 1600mm - 1300mm
Max. Sash Weight (Kg) 40
Key Profile Dimensions
Front to Back Thickness (mm) 130
Sash Depth (mm) 52
Glazed Sealed Units (mm) 28 (4 x 20 x 4)
Sub Cill Height - Optional (mm) N/A
Coupling Mullion Depth - Optional (mm) TBA

Max. heights and widths are based on a sash windows with equal splits.

Window Performance
To Be
U Value

These statistics apply for:
The above statistics apply for: Our Slim Jamb (VS112) and double glazed, 90% argon filled Swiss V spacer bar sealed units (low-E, en=0.05, soft coat). 20mm or more ( U Value centre Pane - 1.2 W/M²K Glass, g = 0.74 *). Air Class 3 600Pa, Water Class 7A 300Pa and Wind Class 4 1600Pa. All weather testings and performace to be confirmed by testing carried out by Smarts Systems. For information about the glass specifications or further details, please ask for more details.

Specifying - Suitable Applications
  • Can be specified for light commercial and domestic applications.
  • Meets building regulations for new build. (For Oct 2010)
  • Meets building regulations for replacement and refurbishment projects. (For Oct 2010)
  • Suitable for heritage, conservation areas and period properties.
Technical Downloads
(Technical drawings of profiles, combinations & section sight-lines.)
1.6 Mb
(Periodic maintenance and cleaning instructions.)
0.1 Mb
(How to take odd leg measurements - instruction sheet)
0.3 Mb
(Glass safety guidelines - where you must use safety glass)
0.1 Mb
(Technical drawings of dimensions and profiles.)
1.5 Mb
Head / Top (mm) 72
Jamb / Side (mm) 89mm or 96mm
Interlock (mm) 42
Bottom - Using VS010(mm) 66
Bottom - Using VS110 (mm) 73
Deep Bottom Rail (mm) 75 (+34.5)
Sash Depth (mm) 52
Glazed Sealed Units (mm) 28 (4 x 20 x 4)

Please Note:
If required - trickle vents are able to be fitted through the head / top of the outerframe with a 25mm gap from top of the head to the start of vent canopy.

Technical Drawings - Downloads

Technical drawings can be provided in DWG or DXF format, please contact us.

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Trade Supplier of ALUK products Smarts Systems approved fabricator. We are the largest supplier of Smart products in the UK. BFRC British Fenestration Rating Council - under the Window Energy Rating Group Scheme We are CE Marking complient