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Windows restoration & Decoration

Sash windows double glazing in Hertfordshire

Retrofitting your single glazing with double glazed units and draught-proofing your timber sash windows

Improved energy




Replacing your single glazing with slim double glazed units

Sash windows are one of the most iconic and signature features of old houses and Hertfordshire is bursting with period properties that have windows in this style.  But as anyone who lives with sash windows knows, they are normally single glazed and not very good at resisting heat loss, noise and draughts. Did you know it is now possible to retrofit double glazing into existing timber frames of sash windows on your Hertfordshire home without compromising on the style and appearance of one of its finest attributes?

Our Services

We bring historic wooden windows back to their former glory and make them energy efficient

Double Glazing Existing Periodic Sash and Casement Windows

Sash Windows Draught Proofing

Retrofitted Into Existing Timber Frames

Fineo glass is a revolutionary new glazing product which at 6.7mm thick can accommodate the narrow rebate of a period sash window.  We can also reinforce old sashes to carry the weight of a new glass unit without compromising the integrity or appearance of the window to help the glass to fit.  This lightweight and narrow pane will not affect the balance of the windows but will block out noise and draughts and keep your heat where you want it – inside.  Why not enjoy the many considerable benefits of slim double glazing with thermal properties of a standard triple glazing for the sash windows on your Hertfordshire home without having to change this valued and elegant characteristic.

We are an official FINEO glass installer

Fineo glass will provide you with a lovely, draught free and constant ambient temperature – in fact, it can cut heat loss  by more than half.  Your energy bills will reduce alongside your carbon footprint and you can savour the luxury of modern living without moving to a new build house.  

As a part of the retrofitting process, we also repair windows’ timber frames

Chameleon  is an official Fineo installer. As part of double glazing projects will also repair any rotten sections of timber with Accoya, a revolutionary new hardwood which easily outperforms the more traditional hard and soft wood choices.

Sash windows draught proofing in Hertfordshire

Draught proofing the sash windows on your classic Hertfordshire home benefits the environment and increases the value of your investment.  Draught proofing the sash windows on your Hertfordshire home will reduce heat loss by over half, considerably lowering your energy bills whilst providing you with a warm and constant temperature so you can enjoy your period home.

Window renovation and upgrade enquiries

To find out more about Fineo glass and what Chameleon can do for the windows on your beautiful home, contact us now

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