constructed from sustainably sourced materials
Cream house with white windows
all locks, handles, hinges and stays are weatherproof and rust-resistant
Casement windows on cream house
featuring anti-burglar type locking mechanisms
uPVC bay windows
constructed from sustainably sourced materials
Timber casement windows
all locks, handles, hinges and stays are weatherproof and rust-resistant
Coloured timber casement bay windows

Timber Casement Windows

Timber casement windows are still a popular choice with many homeowners who prefer the use of natural materials over uPVC or aluminium. The modern flush fitting wooden casement window is quite different in many respects to its predecessors because technology has helped to improve this classic window style enormously. Also, anti-burglar type locking mechanisms now make it virtually impossible to gain access, whilst toughened glass, and double or triple glazing have become additional security features. Chase Window Company have just recently launched their new generation timber window which is the only double rebated flush casement in the market. All known flush casement timber windows benefit from only a single rebate which does not offer the weathertight benefits or air permeability performance.

Our timber casement windows can be constructed from sustainably sourced, specially treated softwood, hardwood, and even oak. Adequate drainage and venting are included as standard features together with internal beading, and they are factory finished with preservative, primer, and two coats of proprietary micro-porous paint.

We can manufacture timber casement windows to any specification, and to suit virtually any type of property, including period properties, and especially those with large bay windows. Each window can be hinged to open left, right or top hung or fully fixed, whichever is more desirable. Equal sight line comes as standard.

For your peace of mind, all locks, handles, hinges and stays are weatherproof and fully rust-resistant. We also offer a large choice of elegant and practical ironmongery options.

Technical Summary

  • Hardwood, softwood or oak
  • Double Rebated sash to frame
  • Multi-layer timber sections
  • Fully drained and vented
  • Dummy sashes to all fixed areas (Equal Sight Line)
  • Internally beaded
  • Proprietary multi-point perimeter locking
  • Unobtrusive hinges
  • Factory glazed with 24mm argon gas filled units and energy saving
    glass (E-glass) plus warm edge spacer bar to give 1.1W/m2K U-value
  • Factory finished with proprietary preservative, primer and two coats
    of micro-porous paint
  • Large range of ironmongery options available

You can view examples of some of our completed timber casement window projects in our gallery

For help and advice about timber casement windows, visit our flagship showroom.

We are located close to the Junction 25 of the M25 with ease of access via the A10. Open 7 days a week you will find an extensive range of timber products on display for your consideration. Come and have a chat with one of our experts who are always on hand to consult about your project.


Over 11,000sq ft of space with of 6000 sq ft of purpose built showrooms, one of the largest home improvement showrooms in the North London, Hertfordshire and surrounding counties. With state of the art displays and kids area all under one roof.

Opening Hours: Monday – Friday 09:00 – 17:00 Saturday 10:00 – 16:00 Sunday 10:00 – 13:00


Smaller showroom with limited range available but good for client convenience.

Opening Hours: Monday – Friday 13:00 – 17:00 Saturday 10:00 – 16:00 Sunday By Appointment Only

Contact Us

Cobury House, Unit 1
11 Pindar Road
Hoddesdon, Herts
EN11 0BZ

189 Chase Side
Enfield, Middlesex

Tel: 0208 366 6500


Latest News


Book an Appointment

Get in touch with us with your preferred date, and we'll get back to you and confirm everything with you.

Request a callback


Buy now pay later