Windows Double Glazing Surrey

Triple Glazing Hampshire

KJM is an award winning company  based in Andover, Hampshire. We were established in 1982 and have been installing quality triple glazed products into homes in the Hampshire area for many years. We can offer market leading 44mm triple-glazed windows that are around 50% more thermally efficient than our ‘A’ rated double glazed windows in both our Veka and Residence 9 & 7 Flush casement systems.

Our range of Triple glazed windows & doors

There is a lot of thing written on the internet about triple glazing, some of which KJM does not believe to be true. There are claims that it will considerably improve sound insulation and some people claim the insulation is not much better than some ‘A’ rated double glazing. There are different sizes of triple glazing and this can have a marked effect on the thermal performance of the window, our Managing Director Mark Pearce has written an article to try and clarify the main points on our Blog page – Triple Glazing

44mm Triple glazed window

This is type of window offers about 50% better insulation than our “A” rated double glazing. It is in most cases over 25% better insulated than our rivals 36mm triple glazing. We can also offer 28mm triple glazed units (2 x 8mm gaps) filled with krypton gas and 3 layers of 4mm glass (as our 44mm system), which achieves a centre pane u-value of 0.60. We offer this smaller unit because some of our range cannot accept the wider 44mm units and some of our customers prefer the bead detail on the 28mm system. Krypton gas works better on smaller air-gaps than argon, but is MUCH more expensive than argon filled units. Either way KJM can provide a triple glazed unit to suit your requirements.

About KJM

KJM are members of the Glass and Glazing Federation, Which? Trusted Traders, Network Veka and FENSA registered. We have a showroom that you can view our entire product range. This also includes hardwood & aluminium windows, doors and conservatories to enhance your home.

We pride ourselves for the quality of our products, installation and after sales service and can provide many recommendations in your local area. Our sales team give free, no-hassle quotations, without the sales gimmicks often used within our industry. KJM offers a range of double glazed & triple glazed windows, doors (including composite, patio french & bi folding doors) and conservatories in Hampshire and the surrounding counties.








Improved security protection
Enhanced sound insulation
Comfort and stability
Excellent energy efficiency
Utilises modern technology
Longevity and durability

Improved Security

Improved security over double glazed windows, due to the extra pane of toughened glass. Internally glazed windows offer added security and prevents the removal of the glass from the outside.

Sound Insulation

There is no major gain having triple glazing with three equal thicknesses of glass. The best solution would be with a thicker centre pane, please enquire for further information.

Heat Insulation

44mm sealed units filled with two 16mm cavities of argon gas. Argon gas is heavier than air, so acts as an insulator

Prevent Cold-Bridging

Warm edge spacer bars made from a composite material to stop the cold-bridge across the unit.

Low-emissivity Glass

Two coatings of low-emissivity glass (Low E). This is a microscopically thin coating that stops the heat from your house going outside.

Plenty of Options

Available in the Sheerline Prestige, Residence 9 and Residence 7 systems as a 44mm unit.

Triple Glazing Prices Hampshire

We can supply both trade and offer supply only costs for our triple glazing range. We also are in partnership with local builders, who can tackle extensions and new-build projects. At KJM we don’t just sell “White PVC Windows” we offer a huge range including the handcrafted Beaumont & Residence 9 PVCu systems, Deceuninck Style-Line 70mm fully sculptured and bevelled windows from Veka & Profile 22 complete the PVC line-up. We also offer a full range of conservatories, doors including composite front doors and bi-folding doors.

Frequently Asked Questions

Will installing triple glazed windows cause overheating in the summer?

Are triple glazed windows worth it?

How much do triple glazed windows cost?

Are triple glazed windows better than double glazing?

What do triple glazed windows do?

Are smaller triple glazed units available?

KJM Windows Swisspacer Bar Animated Video

KJM Windows & Conservatories use Swisspacer

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44mm Argon Filled Triple-Glazing pdf

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40mm Argon Filled Triple-Glazing pdf

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36mm Argon Filled Triple-Glazing pdf

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28mm Krypton Filled Triple-Glazing pdf

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