FlushSASH Windows

Fresh from the PlatinumNRG range, the FlushSASH windows bring back the traditional timber appearance, with the sashes fitting flush into the frame.

They are manufactured from PVCu profiles and bring all the benefits of low maintenance, security, comfort, weather resistance, as well as being fully recyclable.

FlushSash PVCu windows in WhitegrainThese traditional style products are crafted using environmentally friendly lead free PVCu profiles, and can be specified with energy efficient double- or triple-glazed sealed units for optimum energy performance.

Our flush windows have achieved an A +5 energy rating, making them the perfect choice for the energy conscious consumer.

Our standard PVCu windows are A energy rated, and achieve that solely on heat retention without bringing in solar gain, with A+ ratings available.

To find out more, you can take a look at our wide selection of brochures, our photo gallery or please call us on 020 8648 0426.

SCI has been doing this for over 30 years. With around 10,000 satisfied replacement window and door customers, SCI has thrived on quality, innovation and customer care. Our customers appreciate the no pressure, no hassle approach and commitment to service – long after the installation has been completed. SCI has always relied on word of mouth and recommendation rather than advertising. If you are looking to update the PVCu windows of your Surrey or South West London property as well as increasing security throughout, then please call SCI Windows on 020 8648 0426 or get in touch via our contact form.

View our gallery of FlushSASH windows to see some example installations.


“The person who did the initial estimate was super helpful. The whole team, from survey to office to fitters were all accommodating and responsive, and I am very happy with results : new windows at an excellent price with no stress or aggravation.”
Customer in London, August 2019
Replacement windows.
Read more reviews on Checkatrade

Additional Information

FlushSashProfileMulti Chamber Profile

Manufactured from 70mm PVCu profiles, to ensure optimum thermal efficiency and strength.

Our mechanical joints on all transoms and mullions are a standard feature to replicate the traditional mortise and tenon timber joint.

RAL Colour Options

irishoakAll of our PVCu windows are available as standard in white, but we also offer a selection of other colour options, including the very popular white grain.

Please ask to see samples of the various woodgrain and coloured finishes available.

Woodgrain Options

Apart from the usual oak and rosewood woodgrain finishes, we now offer a range of other authentic colours and all are available with either the woodgrain in and out or woodgrain one side and white the other.

  • Whitegrain
  • Golden Oak
  • Mahogany
  • Rosewood
  • Irish Oak
  • Black (please note that is actually called black brown and is not jet black)
  • Chartwell Green
  • Cream
  • Irish Oak on White
  • Chartwell Green on White
  • Black on White
  • White Inside
Glazing Options

We offer a vast selection of decorative and patterned glass options. You can choose from Georgian bars in 2 different widths, leaded glass in diamond or square patterns with optional authentic solder joints or a range of other leaded designs such as Queen Anne. Stained glass is available from a selection of our standard designs, please see our brochure, or you may wish to have a custom design or indeed match the original windows.

We also offer a wide choice of patterned and obscure glass options, including the very popular satin perfect for bathrooms, hallways or side windows. You can mix stained glass with clear to personalise your window as many 1930s properties have, or casement windows with square leading for a Tudor look.

Backing Glass

For privacy, or just pure style, patterned backing glass gives you a whole range of attractive options

Low Emission

We supply a full range of soft coat low emission glass with laminated and toughened glass where required, to provide safety and security where needed. Once an optional extra, low-E glass is now fitted as standard, in compliance with current Building Regulations.

Low-E glass is a fantastic way to reduce energy bills, by providing excellent thermal insulation with U values down to 1.4 W/m2K. It allows high light and solar heat transmittance for the best use of natural lighting and beneficial solar heat gain.

It provides colour neutrality in both reflection and transmission, giving windows a natural appearance, whilst maintaining a pure reflection. Unlike the old hard coat glass which had a tint and made your curtains look dirty.

Leaded Glass

Lead is used to add style, character and authenticity to your windows, with the option of using a blackened technique to provide a darkened, aged feel to the structure.

Soldered joints are an optional extra that also gives you a genuine antique look.

Lead is available in 4mm, 6mm, 9mm, and the traditional 12mm widths.

Laminated Glass

Laminated glass is created by sandwiching a thin vinyl layer, typically of Polyvinyl Butyral (PVB), between two pieces of glass using heat and pressure. It is primarily used for its safety, security and sound reduction benefits. Its toughness and resilience makes this type of glass an excellent safety glazing option.

PVB films are able to block 99% of ultraviolet radiation and prevents furniture and other indoor items from discolouring due to irradiation.

With 6.4mm glass thickness compared to the standard 4mm, laminated glass can also add sound insulation to properties, which may be particularly beneficial when living on busy streets where noise pollution is a problem.

Georgian Bars

Integral bars add great character to your property, yet still retain the ease of cleaning and maintenance to your windows, as the feature bars sit inside the double glazed sealed units.

Available at 18mm or 25mm widths in white, silver aluminium, or any wood grain finish we offer with our PVCu range.

Astragal Georgian Bars

Astragal Georgian bars are a new development to the PVCu market, and resonate with traditional Georgian bars on timber windows windows being fitted to the outside surface of the glass so you can feel them.

We offer two different bars:

  • Ovolo: Designed with a rounded profile to suit that Ovolo frame
  • Bevelled: Designed to replicate the style of traditional time frames, with a slim, angular bevelled sash bar.
Decorative Glass

YorkFrom basic stain glass overlay to sophisticated original designs, we can design and manufacture any ornamental or patterned lead light, using all available coloured and obscure glass.

Choose from our range of colour or bevelled fanlights, acid etched glass or bespoke stained glass added to your windows to enhance their aesthetic appeal.

Colour Fanlights

Our hand-crafted glass range is a combination of colour, lead and glass. Whether applied to a new project, or installed as replacement glazing, they can be using in windows, doors, side panels and conservatories. Our exclusive designs are a valuable addition to any interior design.

Stained Glass

We offer a bespoke range of stained glass, utilising a handmade factory process to produce a wide range of finishes to suit your requirements.

Acid Etched Glass

Etched glass gives a frosted, glazed look with a high level of detail and sophistication. The stencils, created using C.A.D. technology, offer an even glass frosting using modern blasting technology.

Bevelled Fanlights

Our bevelled range comprises bespoke patterns with combinations of individual sections of bevelled glass.

Each piece is bonded to the glass surface, providing a stunning three dimensional effect that can, if required, by combined with any colour film.

ff-hctt35bbWindow Handle Options

We offer a wide selection of window handles from traditional gold through to contemporary chrome to enhance your window design, although white still remains the most popular! A selection are on display at our showroom in Morden.

Extra Security

window-securityOur windows have been tested to meet the exacting PAS 24: 2012 standard. They can be specified with six point locking & twin bi-directional cams, which prevent jemmying.

Our standard shootbolt locking system and optional anti-intrusion hinge bolts aid your security to ensure both sides of the window are equally protected from attack. These engage into strong metal to prevent the window being forced outward so you can rest safe in the knowledge that your home is well protected and far more secure than with older style locking and handle gear.

Associated Documents