Double Glazing Bournemouth Dorset

Timber - PVC - Aluminium - Windows, Doors & Conservatories

KJM Windows, Doors & Conservatories, are an award winning company  that were established in 1982. We have been installing quality double glazing into homes in the Bournemouth Dorset area for many years. This includes a large commercial job on the Southbourne coast.

Which? Trusted Trader double glazing bournemouthWe appreciate that there are many companies that offer double glazing in the Bournemouth area, so we try and be different to all the rest. How you may ask? Our non-commissioned sales-team can show you that there is a huge range of windows available to you, with different materials for all budgets. Also we need to consider your local environment/climate - So anti-corrosion parts are essential. We have the latest uPVC double glazing, including the Residence 9 and Beaumont window systems, windows that are that good, they could be mistaken for timber windows. We also supply a range of hardwood & aluminium windows, doors and conservatories to enhance your home. For the ultimate insulation consider our Triple Glazing. KJM are also Secondary glazing specialists.

Why choose KJM?

  • Huge product range - not just uPVCWindows - Green - in a cottage
  • Timber & Aluminium options
  • Which? Trusted Trader
  • Hampshire Trading Standards approved
  • Award winners and Installer of the Year finalist
  • See our feedback on Check-a-trade
  • Non commissioned sales team - they work for you not the job
  • Energy rated windows & doors including class leading 44mm triple glazing

Some of our product range:-

We can supply both trade and offer supply only costs for double glazing in the Dorset area and also are in partnership with local builders, who can tackle extensions and new-build projects.

Swisspacer bar - warm edge technology - for more thermally efficient windows

Spacer bars which conduct less heat at the edge of the glass are referred to as 'warm edge spacer'

The benefits are as follows:

  • Reduced heat loss through windows
  • Condensation on windows can be reduced
  • Better sound insulation

Argon Gas filled sealed units

Filling the gap between the panes increases the thermal performance of insulating glazing units is to reduce the conductance of the air space between the layers. Originally, the space was filled with air or flushed with dry nitrogen just prior to sealing. In a sealed glass insulating unit, air currents between the two panes of glazing carry heat to the top of the unit and settle into cold pools at the bottom. Filling the space with a less conductive, slow-moving gas minimises the convection currents within the space, conduction through the gas is reduced, and the overall transfer of heat between the inside and outside decreases.

Low-E Glass

High-performance Low-E (low emissivity) glass is designed to reduce heat loss and must be used on energy rated windows. There are two types of low e glass, Hard Coat and Soft Coat, we use soft coat glass as it gives the following benefits over hard coat:

  • Better light transmission
  • Better U-Values
  • Enhanced clarity/neutrality.

Low Iron Glass

By reducing the amount of iron in the external pane of glass, the solar gain of the window is improved. KJM's 'A'-rated windows have this as standard.

Recycled uPVC as well

Firstly we offer the Veka Infinity Window & Door profile system, it is manufactured from recycled material in its core, the all-important external faces are made from virgin PVC. Further information can be found on our Veka Infinity page. Secondly Profile 22 uses RCM (recycled composite material) for it's internal reinforcements. Manufactured from first generation post-consumer uPVC windows, the reinforcement of double glazing windows close the loop on the recycling process by bringing this waste material back into use in a new generation of products. In the world that strives to save precious resources, we believe that this is an innovative product that enhances the thermal efficiency of your windows, whilst providing the strength required from internal reinforcements. Further information on RCM can be found here:- Profile 22 RCM

Triple Glazing

When this web page was first written, we did not sell 44mm triple glazed windows & doors. Today we can improve on our best rated double glazing by over 40% with our Veka triple glazed range. You can find out more information on our web page triple glazed windows.If you have old uPVC windows, then they are probably very energy inefficient. Modern 'A' rated windows offer considerably better insulation and more secure locking mechanisms. See our free brochure download Replacing your old uPVC windows

We invite you to continue to our front page of our website for further information.


Double Glazing Bournemouth Dorset -Triple Glazing - Windows -Doors -Composite Doors - Bi-folding doors- French Doors - Patio doors-Secondary Glazing-Car Ports-Trade Supply-Conservatories