Sash on Hidden Springs

£449+VAT

Our Timber Sash Windows are available in both double (14-24mm sealed units), and single glazing options providing excellent insulation and performance.

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Key features include:

Energy-saving glass with a U-value of 1.4 W/m²K for superior thermal efficiency.
Certified U-values compliant with Building Regulations, ensuring optimal energy performance.
Warm Edge Spacer Technology that enhances insulation and reduces condensation.
Classic Sash Mechanism with both top and bottom sashes that slide smoothly using traditional weight or spring systems.
Decorative Horns to match the classic design for an authentic appearance.
Hardwood Sill (flush-to-frame), providing both durability and aesthetic appeal.
Fully Finished in Any Classic RAL* of F&B* Colour, offering you complete customization.
7-Step Painting Process: wood preservation, staining, interlayer topcoat, and a final protective coat for a long-lasting finish.
Full Set of Standard Ironmongery.
Fully Draught-Sealed for superior weather protection.
Decorative Vertical Astragal Bars for an elegant, traditional look.

Our customers love what we do

We value strong relationships with our clients – you can count on us!

5/5

Amazing from start to finish

We recently had a new window delivered and it looks great, I love it! The quality is fabulous. The service was amazing from start to finish. We got several quotes from different companies and this one was most competitive. I highly recommend this company and I def will use their services again.

Karen

London

5/5

Highly recommend!

Absolutely delighted with my new windows. Great website which gives you a great idea how windows will look. Team was really helpful and evertyhing was clear from the time I ordered to finish with delivery. Highly recommend windows from Wooden Windows Online.

Nathan

London

5/5

Will come back again

I recently installed windows and I was impressed with its quality. Team was responding fast and all process went well. Will definitely come back again