RLM FLUSH SASH WINDOWS
Flush Sash Windows
Our flush sash windows combine contemporary aesthetics with traditional charm, perfect for homes seeking modern performance with classic appeal. Whether you’re renovating a period property or building new, our flush sash windows offer superior energy efficiency, security, and style. These versatile windows sit flush within the frame, creating clean lines that suit both modern and heritage properties. Add heritage bars for an authentic period look, or keep them plain for a sleek, contemporary finish.
Modern flush sash windows can be a striking feature in any contemporary, stylish home. However, by adding something as simple as a heritage bar through the centre of the glass, your flush sash window can be instantly transformed into a period-style design—perfect for a more traditional property and ideal for replicating the look of classic timber windows.
Why Choose Flush Sash
Considerable care has been taken to capture the charm and elegance of a traditional timber window, even down to the tactile woodgrain finish, but combine this with the advance low maintenance qualities associated with modern day UPVC windows.
Our bespoke flush sash windows are completely tailored to your exact requirements and are all fully made to measure. We offer a combination of high security, low maintenance, energy-rated windows. Visit our showroom or contact us for a free quote.
Compliance & Safety
On our Flush sash range we offer a choice of Welded finish or mechanical Genus finish. Engineered using traditional joinery techniques, the Genus finish offers milled butt joints to provide the Ultimate timber effect window.
Product Options
Our flush sash windows come in a variety of colour options and finishes.
Black W Grain Smooth White
Chartwell Green W Grain Smooth White
Cherrywood
Irish Oak
Cherrywood Smooth White
Dark Grey Smooth White
Dark Grey
Dark Grey White Grain
Ice Cream
Ice Cream Smooth White
Irish Oak Smooth White
Spectral Grey Smooth White
Spectral Grey Spectral Grey
Spectral Platinum Smooth White
Spectral Platinum
Light Grey Smooth White
Rosewood
Rosewood Smooth White
Smooth White
White W Grain
Black W Grain Smooth White
Chartwell Green W Grain Smooth White
Cherrywood
Irish Oak
Cherrywood Smooth White
Dark Grey Smooth White
Rosewood
Dark Grey White Grain
Ice Cream
Ice Cream Smooth White
White W Grain
Rosewood Smooth White
Smooth White
The colours shown on our web site are for your guidance only, please ask to see physical samples for a true representation.
Antique Black
Black
Bronze
Chrome
Gold
Graphite
White
Antique Black
Gold
Chrome
Graphite
Antique Black
Gold
Chrome
Graphite
We offer a choice of Flush Sash and Rebated Sash profile options. This can often be influenced by your personal preference and taste. Our standard go to profile is Ultimate Heritage Window.
Ultimate Heritage Window Flush Sash
Ultimate Heritage Window Rebated Sash
Arctic
Autumn
Chantily
Charcoal
Contora
Cotswold
Digital
Everglade
Flemish
Florielle
Mayflower
Minster
Oak
Pelerine
Stippolyte
Sycamore
Taffeta
Warwick
Rehau Windows
Rehau by RLM
Legacy Sliding Sash
Ultimate Modern Collection
Ultimate Heritage Collection
If you want to discuss colour, profile or hardware options please speak to the team on Call 0191 266 8788.
Ready to upgrade to flush sash windows? Contact our team for a free, no-obligation quote.
Why not visit our showroom where you can view our range of products in person. Our team are here to help talk you through any project.
Try Our Window Designer
Want to design and plan your own windows? Then try our free window designer.