Do you experience any of the issues listed below?
If yes, our sash window double glazing service might be the perfect solution.
Low energy efficiency & high heating cost
Poor external noise insulation
Cold draughts
Condensation on window panes
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15–25-year guarantee on vacuum glazing
A failed unit gets new glass free of charge
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20-year guarantee on timber repairs
Repairs in Accoya and Tricoya timber
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1,000+ homes restored since 2008
East Anglia, London and the Home Counties
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Rated 5.0 on Google
Double glazing sash windows in Harlow
If your period property in Harlow features single-glazed wooden windows, our team can expertly install vacuum-insulated units into your existing sashes.
Our double-glazing service in Harlow is specifically tailored to tackle all problems related to single-glazed windows, while also restoring and enhancing the insulation of wooden frames.
We can enhance your windows to be as efficient as triple glazing without the need to replace frames or sashes.
This not only saves you money but also preserves the original features of your property.
Quick overview of our double glazing service
Our Services
We bring historic wooden windows back to their former glory and make them energy efficient

Sash windows draught proofing Harlow
Original sash windows often lack the modern insulation seals found in newer windows. To address this, we incorporate draught-proofing as part of the reglazing process when fitting sashes with double-glazed units.
Draught-proofing offers a wide range of benefits, including retaining heat within your home, reducing external noise, and minimizing the infiltration of dust.
Triple glazing performance at an 8 mm thickness
Our company install all brands of vacuum-insulated glazing into existing wooden windows in Harlow, Essex.
This vacuum double-glazing offers better insulation than triple-glazing while being thin enough to fit into the narrow sashes of period properties.











