Window Description
This made to measure A energy rated upvc sliding sash window is supplied with Pilkington K soft coat low E 28mm glass achieving a u value of 1.4 W/m² K as standard. The 128mm thermal efficient multi chamber frame system has ultra slim sight lines, clean and modern aesthetics with low maintenance and is guaranteed not to discolour, warp or peel and internally beaded for maximum security. Compliant with Part L Building Regulations.
*Please note, on windows with a woodgrain finish external and smooth finish internal we are not able to offer the top sash tilt facility. It will slide only.
Standard Window Specification
- A energy rated with a u value of 1.4
- Double glazed argon filled energy saving glass
- Multipoint locking system
- Lift hooks
- Run-through sash horns
- Slide & Tilt* Functionality
- 128mm thick thermal efficient multi chamber frame
- Internally beaded for maximum security
- Energy efficient window profile
- Fully compliant with the Part L Building Regulations
- 10 year profile guarantee
Window Dimensions
Frame Width (min - max): 375mm - 1500mm
Frame Height (min - max): 800mm - 2100mm
Downloads
Lead Time
Current lead times are 3-4 weeks. Upon order we shall provide an estimated delivery date and notify you of the proposed delivery date and 2hr time slot at least 72 hours prior to delivery.
Product |
Lead Time |
Aluminium Windows |
4-6 Weeks |
UPVC Windows |
2-3 Weeks |
Sliding Sash Windows |
3-4 Weeks |
Composite Doors |
2-3 Weeks |
UPVC Doors |
2-3 Weeks |
UPVC French Doors |
2-3 Weeks |
Sliding Patio Doors |
3-4 Weeks |
Aluminium Bifold Doors |
3-4 Weeks |
Please contact our team on 01530 515161 if you would like to check the earliest delivery date available to your area.
Upon order we shall provide an estimated delivery date and endeavour to notify you of the proposed delivery date and 2hr time slot at least 72 hours prior to delivery.
Free Delivery
Free delivery is available on all orders over £250.
Regions Covered

Service
Using our own delivery fleet and experienced drivers, every effort is made by the House of Windows delivery team to ensure your order reaches you safely and in the same condition it leaves the factory.
Orders can be delivered to your home address or direct to site.
Upon prior arrangement we can leave your order on site in the event no one is available to sign for.
What size do you offer?
All our windows and doors are made to measure and to your speciific requirements.
What is a cill?
The cill runs underneath the window frame and projects outwards, it is used to deflect the rain water away from the brickwork underneath.
What is a frame extender?
Frame extensions are used to make the frame thicker, useful to expose more of the window frame if the property is rendered, pebble dashed or the frame sits behind a reveal.
What is the thickness of the window frame profile?
The depth of the sash window frame profile is 128mm.
What ratings and u values are your windows?
We offer A Rated windows rated by BFRC as standard and these achieve a u value no greater than 1.4. A+ Rated windows are available as an upgrade.
Do I need trickle vents?
Current building regulations state that it is only mandatory to install trickle vents within a replacement window if there is a trickle vent present within the existing window. All windows for new builds and extensions will require trickle vents.
What guarantee do you offer?
All frames and profiles have a 10 year warranty, glass units 5 year warranty and hardware such as locks, handles 1 year warranty from date of delivery.
How do I measure?
We would recommending measuring the structural opening and provide the dimensions less any fitting allowance, please refer to the measuring guide for further information.
Where can I view cross section drawings of the windows?
Please refer to the technical and downloads section for further details on profile specifications.
Do you have a showroom?
We have distribution centres across the UK but for health and safety reasons the general public are not allowed on the premises or sites.
Do you offer an installation service?
We offer a supply and delivery service only. All windows supplied are for DIY installation or by a professional window and door installer.
Can I return my order as I've ordered the wrong size?
No, unfortunately as all the products we manufacture are custom made to order we are unable to accept returns.
If you have any questions please contact our team on 01530 515161 and we'll be happy to help.