Mechanically Jointed uPVC Sash Windows

Our mechanically jointed sash window replicates the 90-degree joins on timber sliding sash windows. Our customers have always had a lot of success getting approval for our normal uPVC sliding sash windows in conservation areas but with this window – from the incredible £365 including VAT for virtually any size, it`s almost a forgone conclusion.
No other supplier in the UK can offer this price for this style of window. Call us today – we are the specialists! Check our measuring guide, get your sizes and ask for your sash windows online quote!
Woodgrain uPVC

MECHANICALLY JOINTED SLIDING SASH WINDOWS – SUPPLY ONLY
FROM £364 + VAT
- Double glazed – argon gas filled, Pilkington Low E glass
- Mechanical joints
- White furniture – including safety restrictors
- ‘A’ energy rated, 1.4 U-Value
- Warm edge spacer bars
- Plant-on sash horns
- Toughened glass on the bottom sash
- 150mm stub cill
- for units up to 1250mm wide by 2300mm high
- Small delivery charge applicable for orders less than 5 windows or if you are based in Ireland and some remote parts of UK
* Any other feature is extra charged. Bigger sizes available for a small extra charge as well.
Standard Woodgrain Collection
- White
- Anthracite Grey
- Cream
- Black Brown
- Golden Oak
- Rosewood
Special Woodgrain Collection
- Chartwell Green
- Agate Grey
- Irish Oak
- English Oak
- Nut tree
- Anthracite smooth grey
Choose from a wide range of colours. As standard our sash windows come in a smooth white finish but you can also have them sprayed in any RAL or Farrow & Ball colour.
If you want a more natural look our woodgrain colour selection is the right choice. The foiled finishes bring windows to life with a woodgrain effect that never needs painting. Dual colour finishes are also available: meaning a coloured exterior can be paired with a smooth white interior to keep its effect on the room neutral. Our special woodgrain colours are available with longer lead time.
We are now offering woodgrain windows with seamless welds making the joints almost invisible.
- White
- Black
- Antique Black
- Satin
- Chrome
- Graphite
- Gold
- Bronze
High quality hardware is fixed to integral reinforcements for reliable and smooth opening. The travel restrictors stop both the top and bottom sashes from opening more that 100mm. The standard restrictor is non-locking and auto-engages when the sash slides past. They are primarily used as both a safety and security feature. The hooks and pole eyes come loose so you can decide whether you`d like them or not.
As standard, each window is supplied with white furniture including lock, pole eyes, sash pulls and safety restrictors. With all optional finishes, you will find exactly the right match for your taste. Heritage style hardware also available.
* Note – our travel restrictors are only available in white, chrome, gold and satin silver
Choose between the extra features for your trade uPVC sash windows we offer while keeping the exceptional energy saving capabilities and durability of the material:
- Astragal Bars
- Georgian Bars
- Run Through Sash Horns
- Trickle Vents
- Deep Bottom Rail
- Obscured glass
- Bigger sills
- Arched Sunburst Layout
- Fire escape hinges
- PAS 24/Secured by Design
- Frame extenders
Our vertical sliding sash windows can be manufactured to a style to suit your home. Here are a few examples of the bar layouts available. Our windows come with equal sized top and bottom sashes (50/50 split) as standard, however we are able to manufacture other split ratios at your request (minimum transom drop of 350mm).
- Non Bars
- Three Light
- Three Offset Light
- 2/5 x 3/5
- Asymmetric
- Margin
- Half Georgian
- Georgian
- Georgian Variant
- Fire Egress A
- 1/3 x 2/3
- Swept Head
- True Arch

Spectus uPVC Profile
Frame Depth | 128mm |
Corner Detail | Mechanical joints |
Meeting Rail | 50mm |
Plant on Sash Horns | Standard |
Woodgrain | Optional Extra |
Deep Bottom Rail | Optional Extra |
20mm Astragal Bar/s | Optional Extra |
Weather Bar | Optional Extra |