Slim double glazed units supplier

Slenderclear Toughened Glass

  • 4mm Clear – Softcoat – Obscure.
  • Sizes from 250mm x 250mm down to 100mm x 100mm

We have a glass toughening solution for heritage panes that need toughening but are too small for most toughening plants all this can be done in our own workshop in Haddenham.

Our expertise in the manufacturing of small slim heritage units and the introduction of a small toughening plant has allowed us to now process toughened glass efficiently with sizes down as small as 100×100

We are also able to manufacture slim toughened double glazed units down to 100x100mm.

For a quote please complete our Quick Quote form.

100mm x 100mm toughened glass
Toughenned slim glazed units
Glass toughening machine
Sighlines for slim double glazed units
Toughened glass machine
Tougheneing machine

Get A Glazing Quick Quote - TRADE ONLY

Complete and send our online "Quick Quote Form" and we will get back to you within 24 hours.


All Slenderpane units come with a warranty and now most of our units have a 10 year warranty. For full details please check our Warranty Information.

Slim double glazed units warranty

Mr Hothersall, Somerset

"I thought I would get in touch following installation of your glass by Chris of Sash Window Doctor, Portland, Devon. We never expected huge differences in temperature with this type of slim glazed units so only gave Chris a couple of windows to see if your website claims stand up. The honest answer is yes!"

"I’ve been very impressed so far and with a 7mm sight line, your 10 year guarantee it gives me confidence, so much so I’ve asked him to do several more windows. I’m sure you will look after him, and I’m grateful that both he and your company exist to keep older buildings going and not simply rip out perfectly good wooden frames etc. well done!"

David George-Powell, Buckinghamshire

"I have received the units . Just like to say I am very pleased with the quality of your units they are very well made."

"I have seen a lot of units , I have been around the glass industry all my life. My dad owned two glass shops and was in the business for 61 years."

"The packing crate was a bit damaged but I think there is no damage . We used to put a glass fragile sticker on , the delivery drivers seem to understand that better. He thought it was a machine. Thanks for your speedy service hope to deal with you in the future."

Bobby, Berkshire

"Thank you for the glass that was delivered today. Can I just say your service is amazing and the packaging ezxeptional. Please pass my thanks to Ralph also."

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Opening Hours

Monday - Thursday: 8.30am - 5.00pm
Friday: 8.30am - 4.00pm
Saturday, Sunday & Bank Holidays: Closed

Slenderpane's Workshop Showroom visits for Trade customers are by appointment only.

We are proud to be sponsors of the Florence Nightingale Hospice Charity

Florence Nightingale Hospice Charity

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