36a Northfield Rd Harborne Birmingham B17 0SU
It is the attention to detail that separates our bespoke casement windows from the rest, whether a traditional flush casement window or a more modern lipped casement window, our timber casement windows will authentically replicate the right style for your home.


Choosing the right style of casement window can significantly enhance the character, performance, and overall aesthetic of your home. At Harborne Sash, we have thoughtfully designed a diverse range of premium casement windows to complement a wide variety of property types – from traditional period homes to more contemporary residences.
We use Only Proven Top Quality Materials & Hardware
To Reduce Heating Costs and to Improve Comfort Levels
Our Products Feature the Most Advanced Locking Mechanisms
Everything is Designed to Suit the Style and Age of your Property
Over 400 Paint Colours & 90 Handles, Make our Window yours.
Year Fungal & Insect Guarantee
Year Sealed Unit Guarantee
Year Hardware Guarantee
Year Workmanship Guarantee
Year Paint Guarantee
Protective micro-porous paint or stain in multiple colour options.
Unique ventilation prevents premature misting elongating the life of glass.
Over 400 paint colours and 7 carefully selected stains.
Peardrop, Reeded, Monkey Tail, Chrome, Bronze, Brass, almost 100 different handle choices.
Authentic, hand-made stained glass to perfectly replicate your own or existing designs.
Yes. By far and away the most popular and historic casement window is the Flush Casement. There are also Lipped Casement Windows which provide greater protection from the elements, Cottage Casement Windows which have a unique design to maximise their versatility in small apertures as well as Tilt & Turn Windows that open inwards and specialist Deco Casement Windows often found on early twentieth-century properties.
The Harborne Sash Window Company offers bespoke casement windows to suit any property.
Our team of experts will help you choose the perfect casement window for your home. Whether that is an elegant Flush Casement Window, stormproof Lipped Casement Window or sleek Cottage Casement Window, we will guide you through all of your options and help you make the best decision on style and colour.
All of our casement windows are constructed using sustainably sourced FSC® Certified wood. The timber goes through an extensive process, honed in Scandinavia, before it is used to construct your windows. All of our timber is kiln dried, planed and free of any defects such as knots. Each piece is then glued and laminated together to create an Engineered Timber. It is these incredibly strong and stable sections which are then used to make your casement windows.
Yes, all of our timber casement windows can be made out of sustainably sourced hardwood, using the same Engineered Timber construction as our FSC® Certified Redwood. We offer both Meranti hardwood casement windows as well as oak casement windows.
We do. We have an extensive range of timber alternative and uPVC casement windows which are sympathetically designed to replicate authentic timber casement windows. For those seeking a more contemporary finish, we also have modern aluminium casement windows as well as steel look casement windows for a more industrial finish.
All of our timber casement windows come with a 30 year guarantee against rot and fungal infestation and a 12 year paint guarantee. For a comprehensive list of our guarantees, please look above.