Secondary Glazing in Chichester & West Sussex

Secondary glazing is a slim second window fitted on the inside of your existing one. It keeps your original windows, and the look of your home from the street, exactly as they are, while making the room warmer, quieter and less draughty.

It is the natural choice for listed buildings and homes in conservation areas, where replacing the windows isn’t allowed or isn’t wanted. We are a local, family-run company with more than 25 years’ experience, and we survey, supply and fit made-to-measure aluminium secondary glazing across Chichester, Bognor Regis, Emsworth, Selsey, Felpham, Pagham, Barnham, Bosham, Littlehampton, Arundel and the surrounding areas of West Sussex and the Hampshire border.

Warmer rooms and lower heating bills

Secondary glazing seals out the draughts around old windows and adds an insulating layer of air. It can cut the heat lost through a window by up to 65%. With energy-saving low-E glass, a single-glazed window with secondary glazing can reach a U-value of around 1.5 W/m²K, against about 4.7 for the single-glazed timber window on its own.

A quieter home

Two panes with a wide air gap between them are very good at stopping noise. With acoustic glass and a 150–200mm gap, the systems we fit are tested to cut noise by up to around 50 dB (Rw), more than the roughly 35 dB of typical double glazing. It works alongside double glazing too, if you already have it.

Fewer draughts and less condensation

The inner pane stays warmer than single glazing, so less condensation forms on it, and the seals stop the draughts that make rooms with old windows feel cold.

Extra security

A second, locking window behind the first adds another barrier against intruders. Toughened safety glass comes as standard, and hinged units can have multi-point locks.

Each unit is made to measure, and the right type depends on how your existing windows open.

Fixed and bespoke shapes

Fixed units suit windows that never open and large panes of glass. Arched, curved, bay, circular and angled windows can all be matched with made-to-measure units.

The frames are slim, powder-coated aluminium, so they are strong without being bulky and sit neatly inside the window reveal. They come in white, cream, brown, anthracite grey and black, or any of over 200 RAL colours to match your woodwork.

Toughened, energy-saving low-E glass comes as standard. For noise, we fit acoustic laminated glass, and laminated safety glass is available where it is needed.

Because it is fitted inside and can be taken out again without damaging the original window, secondary glazing is the option conservation officers are happiest with. Planning permission isn’t needed, as nothing changes outside.

That is why it is widely accepted in listed buildings: the original windows stay exactly as they are. If your conservation officer would like to see the details, we supply the drawings and product information, and we fix the units so that they can be removed cleanly in the future.

If your windows are listed, in a conservation area, or simply too good to lose, secondary glazing keeps them and solves the cold, the draughts and the noise. If your frames are rotten and there is nothing stopping you replacing them, new double or triple glazing may be better value, and for old timber windows we also offer reglazing and slimline double glazing. We will give you honest advice on which suits your home.

1. Free survey – we look at your windows, measure up and recommend the right type, glass and air gap for warmth or noise.

2. Made to measure – each unit is made to the exact size and shape of your window, in the colour you choose.

3. Fitting – fitted inside the existing window by our own team, with minimal disruption and nothing changed outside.

4. Final check – we make sure every panel slides, opens, locks and seals properly before we leave.

We fit secondary glazing across Chichester, Bognor Regis, Emsworth, Selsey, Felpham, Pagham, Barnham, Bosham, Littlehampton, Arundel and the surrounding areas of West Sussex and the Hampshire border.