There will always be a place for timber sash windows
White timber sash windows
Constructed from sustainably sourced materials
Timber sliding sash windows
All locks, handles, hinges and stays are weatherproof and rust-resistant
Double glazed sliding sash windows

Timber Sash Windows in Hertfordshire & London

There will always be a place for timber sash windows, especially with homeowners who prefer the use of natural materials over uPVC or aluminium. Many period properties, particularly those with grade I and grade II listed status, are required to replace existing timber sash windows like for like. Fortunately, modern manufacturing techniques have allowed for replacement sash window reproductions to be far superior in both quality and functionality to their Georgian, Victorian or Edwardian counterparts.

Technical Summary

  • European Redwood, Meranti hardwood or Oak
  • 20mm double as well as 32mm triple glazed window options
  • Multi-layer timber sections
  • Fully drained and vented
  • Internally beaded
  • Factory glazed with argon gas filled units and energy saving glass with warm edge spacer bar to give 1.1W/m2K U-value
  • Factory finished with proprietary preservative, primer and two coats of micro-porous paint
  • Range of suitable ironmongery available
  • Hung on lead (or equivalent) weights, and cords or concealed spring balanced
  • A wide choice of fittings and fixtures available including child restrictor latches
  • Quadruple draught-proof strips
  • Sash lifts to bottom rail
modern sash windows

Chase Window Company manufactures all types of timber sash windows including sliding sash box sash, and fixed mock sash. From within our modern machinery equipped workshops our industry trained joiners are able to recreate timber sash windows to virtually any specification. The finished products will far exceed all expectations in terms of design, security and longevity.

visit our showroom

Modern reproductions, manufactured by Chase Windows fit perfectly and perform better than ever, and that includes opening and closing operations together with locking and unlocking. Sticking and rattling are problems of the past as the modern replicas are now quiet, slide effortlessly, are weatherproof, and totally draught-proof. Options for our sash windows include traditional weights and cords or concealed spring balances.

how do sash window weights work?
timber sash windows

Our timber sash 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 -factory finished with preservative, primer, and two coats of proprietary micro-porous paint.

what’s the best timber for windows?
modern sash windows

Glass for windows has improved enormously over recent years with the introduction of energy-efficient glass, which has been able to dramatically reduce home heating costs. Other options include toughened laminated glass for added security and safety and acoustic glass for sound insulation. Most modern glass also offers far better UV protection. We can advise about the best glazing options for your windows.

replacing timber windows in listed properties
CC20 Masterframe Vintage

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.

get the most out of timber windows with beautiful dressings
timber sash windows

Located close to Junction 25 of the M25, 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.

5 vital reasons to visit a windows showroom before choosing anything!


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


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