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Sash windows double glazing in

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

Improved energy efficiency

Improved energy

Noise reduction


Noise reduction


Noise reduction


Replacing your single glazing with slim double glazed units

Sash windows are a classic feature on many period properties but these windows are not without their challenges, those weights and pulleys are always tricky to manage. Sash windows are known to be temperamental and also not so good at blocking out draughts and noise. Many homeowners think they are not a candidate for double glazing without spoiling them but it is possible to enjoy the benefits of double glazing for historic sash windows on your character Stevenage home. Replacing single glazing with slim vacuum sealed double glazed units without changing historic windows is finally possible thanks to high-tech Fineo glass.

Our Services

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

Sash and Casement Windows Restoration

Sash and Casement Windows Restoration

Double Glazing Existing Periodic Sash and Casement Windows

Double Glazing Existing Periodic Sash and Casement Windows

Sash Windows Draught Proofing

Sash Windows Draught Proofing

Windows Painting and Paint Spraying

Windows Painting and Paint Spraying

Retrofitted Into Existing Timber Frames

Using very thin Fineo glass of only 6.7mm, Chameleon can fit single glazing to the narrow rebate of your classic sash windows giving you the most incredibly lightweight and good looking glazing with all the thermal insulating properties of modern sealed unit double glazing. This new double glazing for your Stevenage sash windows will help retain heat, eliminate draughts and lower your energy bills with no concession to the classic period style you love about your home. Fineo glass can be retrofitted into existing timber frames. As part of our double glazing projects we offer complete timber window refurbishment and painting service, which comes with a 10-year warranty on paintwork and a 20-year warranty on repairs.

Retrofitted Into Existing Timber Frames

We are an official FINEO glass installer

Using Fineo glass which has unique thermal properties at a fraction of the width of standard double glazed units, you can eliminate noise and draughts and keep a warmer ambient temperature in your home. Perfectly proportioned for the narrow rebate of a sash window, this double glazing can create insulation for the sash windows on your period Stevenage property with less noise, draughts and lower energy bills.

Testimonials from satisfied customers

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

Sash window double glazing and draught proofing in Stevenage

Draught proofing the sash windows on your Stevenage home can reduce draughts by more than half giving your home a warm, insulated feel more commonly found in modern properties. Ideal also for reducing noise as many period homes are located on busy streets.

Sash windows draught proofing Suffolk

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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