Manufactured from slim, unobtrusive white enameled aluminium profiles usually with single glazing. Double glazing is also available for specialist applications. These units replicate the design of and are installed inside the main, or primary, window.
The product range includes;
We have a comprehensive range of styles for every application. These include Lift Outs, Vertical Sliders, Hinged Units and Horizontal Sliders, Balanced Vertical Sliders and Tilt-in Balanced Vertical Sliders.
Our Secondary Glazing System has excellent thermal insulation. Harmful effects of ultra violet radiation can also be reduced whilst letting in solar heat.
If you are searching for secondary glazing for sash windows you no doubt have some drafty sash windows that may well be covered in condensation and doing a poor job of cutting down noise from outside such as traffic and aeroplanes.
Sash windows are typically one fifth the price of replacement timber sash and perfect behind traditional sash or ornate leaded glass.
Secondary glazing can reduce noise by as much as 50% depending on the gap between the existing window and the new glazing, 50mm / 2 inches is the minimum recommended gap and 200mm / 8 inches is the maximum recommended gap.
Secondary glazing will also eliminate as much as 95% of surface condensation that is common on many single glazed sash windows. Saving you the hassle of wiping down your window boards and trying to keep your curtains dry.
It may not have been something you had thought of but secondary glazing is lockable therefore will be a particularly good deterrent to any burglar, particularly if you are in a ground floor flat.
So what are your options?
The cheapest option is to install a secondary glazing that can be lifted out for cleaning. This is a good economic choice if the window has been painted shut and you have no plans to fix it.
You can also get a casement style secondary glazing which is one big window which opens in the way allowing for easy cleaning which is obviously easier than lifting out the glass. If you have furniture or a TV in the way then their is a third option.
You can have vertical or horizontal sliding frames that are designed to mirror the look of your existing window. They can be lifted out should you require to do some maintenance on your windows.
Your secondary glazed window will have a hardwood frame securely fixed to your existing window and narrow aluminium glazing bars which will complement your existing window to be as unobtrusive as possible.
Irrespective of what style your existing window is there is a secondary glazed window available that will allow you to keep your decorative features of your existing windows.
Secondary glazing frame options include fixed panels, lift out panels, hinged casement openings and horizontal and vertical sliding windows.
The Osprey range of secondary glazing is supplied fully assembled and comprises an aluminium outer frame joined to a seasoned hardwood surround which allows for a neat, unobtrusive installation even in the most difficult situations. A range of hardwood sub-frames and scribing trims can be used to assist face fixing, reveal fixing and the coupling of units. This allows the satisfactory refurbishment of our largest primary windows. Suitable for all types of premises including grade one and two listed buildings, schools colleges, hospitals, universities, hotels and commercial buildings
We have a comprehensive range of styles to suit just about every application, including Horizontal Sliders, Hinged Units, Fixed and Lift-Out Units, Vertical Sliders as well as Balanced Vertical Sliders and Tilt-in Balanced Vertical Sliders. We can supply frames in white, silver or brown as standard and can accommodate any R.A.L. colour upon request to suit individual requirements. We can also provide a wide range of glass types such as clear, patterned, toughened, laminated and acoustic. Whatever your requirements you can trust it to Osprey
If you are searching for secondary glazing for sash windows you no doubt have some drafty sash windows that may well be covered in condensation and doing a poor job of cutting down noise from outside such as traffic and aeroplanes.
Sash windows are typically one fifth the price of replacement timber sash and perfect behind traditional sash or ornate leaded glass.
Secondary glazing can reduce noise by as much as 50% depending on the gap between the existing window and the new glazing, 50mm / 2 inches is the minimum recommended gap and 200mm / 8 inches is the maximum recommended gap.
Secondary glazing will also eliminate as much as 95% of surface condensation that is common on many single glazed sash windows. Saving you the hassle of wiping down your window boards and trying to keep your curtains dry.
It may not have been something you had thought of but secondary glazing is lockable therefore will be a particularly good deterrent to any burglar, particularly if you are in a ground floor flat.
So what are your options?
The cheapest option is to install a secondary glazing that can be lifted out for cleaning. This is a good economic choice if the window has been painted shut and you have no plans to fix it.
You can also get a casement style secondary glazing which is one big window which opens in the way allowing for easy cleaning which is obviously easier than lifting out the glass. If you have furniture or a TV in the way then their is a third option.
You can have vertical or horizontal sliding frames that are designed to mirror the look of your existing window. They can be lifted out should you require to do some maintenance on your windows.
Your secondary glazed window will have a hardwood frame securely fixed to your existing window and narrow aluminium glazing bars which will complement your existing window to be as unobtrusive as possible.
Irrespective of what style your existing window is there is a secondary glazed window available that will allow you to keep your decorative features of your existing windows.
Secondary glazing frame options include fixed panels, lift out panels, hinged casement openings and horizontal and vertical sliding windows.
The product range includes;
- Vertical sliders for Sash Windows, with a tilting and removable sash facility for ease of cleaning
- Horizontal sliders with removable sashes for 'picture' type casement windows
- Hinged units for narrow casements, doors & French doors or windows. Sashes can be lifted off
- Lift out units for use when only occasional access is required to the primary main window
- Fixed units, usually only used to insulate glass panels within doors
- For most people, double glazing is a great option to insulate their windows. Double glazed units give homeowners a number a benefits including cuts in their energy bills and reduced carbon emissions.
This is because the unit is designed to retain heat with two panes of glass separated by an energy efficient gas, such as Argon, Xenon or Krypton. And if the double glazing is framed in uPVC, the unit as a whole will be even more efficient.
But for some people double glazing is not an option. Homes in conservation areas and World Heritage Sites are limited in what can be installed to the original building. Most of the time renewable energy products such as solar panels and heat pumps aren’t allowed and conservatories are also heavily restricted.
And it’s the same for windows, with double glazing struggling to get a look in these types of properties. However, these stringent British laws can be manoeuvred with something known as secondary glazing.
Secondary glazing is based on the same principles as double glazing, but rather than completely changing the original frame, you simply fit another pane to the interior. This means the exterior of the building is not changed in the slightest, but you still benefit from a whole host of advantages.
Just like double glazing, a secondary pane will reduce heat loss meaning your bills will also be reduced. This is environmentally friendly as you’ll be using less energy to warm your home so carbon emissions will be cut.
A secondary pane will also provide noise reduction from outside and increase the security of your property.
Secondary panes can be fitted with the main three frame materials – uPVC, wood and aluminium. It’s a great insulator and you’ll see secondary glazing in many historic buildings such as hotels, churches, schools and government offices.
Remember if you’re keen to install secondary glazing yourself, the recommended air gap between the original and secondary pane should be a minimum of 100mm apart.
We have a comprehensive range of styles for every application. These include Lift Outs, Vertical Sliders, Hinged Units and Horizontal Sliders, Balanced Vertical Sliders and Tilt-in Balanced Vertical Sliders.
Our Secondary Glazing System has excellent thermal insulation. Harmful effects of ultra violet radiation can also be reduced whilst letting in solar heat.
If you are searching for secondary glazing for sash windows you no doubt have some drafty sash windows that may well be covered in condensation and doing a poor job of cutting down noise from outside such as traffic and aeroplanes.
Sash windows are typically one fifth the price of replacement timber sash and perfect behind traditional sash or ornate leaded glass.
Secondary glazing can reduce noise by as much as 50% depending on the gap between the existing window and the new glazing, 50mm / 2 inches is the minimum recommended gap and 200mm / 8 inches is the maximum recommended gap.
Secondary glazing will also eliminate as much as 95% of surface condensation that is common on many single glazed sash windows. Saving you the hassle of wiping down your window boards and trying to keep your curtains dry.
It may not have been something you had thought of but secondary glazing is lockable therefore will be a particularly good deterrent to any burglar, particularly if you are in a ground floor flat.
So what are your options?
The cheapest option is to install a secondary glazing that can be lifted out for cleaning. This is a good economic choice if the window has been painted shut and you have no plans to fix it.
You can also get a casement style secondary glazing which is one big window which opens in the way allowing for easy cleaning which is obviously easier than lifting out the glass. If you have furniture or a TV in the way then their is a third option.
You can have vertical or horizontal sliding frames that are designed to mirror the look of your existing window. They can be lifted out should you require to do some maintenance on your windows.
Your secondary glazed window will have a hardwood frame securely fixed to your existing window and narrow aluminium glazing bars which will complement your existing window to be as unobtrusive as possible.
Irrespective of what style your existing window is there is a secondary glazed window available that will allow you to keep your decorative features of your existing windows.
Secondary glazing frame options include fixed panels, lift out panels, hinged casement openings and horizontal and vertical sliding windows.
The Osprey range of secondary glazing is supplied fully assembled and comprises an aluminium outer frame joined to a seasoned hardwood surround which allows for a neat, unobtrusive installation even in the most difficult situations. A range of hardwood sub-frames and scribing trims can be used to assist face fixing, reveal fixing and the coupling of units. This allows the satisfactory refurbishment of our largest primary windows. Suitable for all types of premises including grade one and two listed buildings, schools colleges, hospitals, universities, hotels and commercial buildings
We have a comprehensive range of styles to suit just about every application, including Horizontal Sliders, Hinged Units, Fixed and Lift-Out Units, Vertical Sliders as well as Balanced Vertical Sliders and Tilt-in Balanced Vertical Sliders. We can supply frames in white, silver or brown as standard and can accommodate any R.A.L. colour upon request to suit individual requirements. We can also provide a wide range of glass types such as clear, patterned, toughened, laminated and acoustic. Whatever your requirements you can trust it to Osprey
If you are searching for secondary glazing for sash windows you no doubt have some drafty sash windows that may well be covered in condensation and doing a poor job of cutting down noise from outside such as traffic and aeroplanes.
Sash windows are typically one fifth the price of replacement timber sash and perfect behind traditional sash or ornate leaded glass.
Secondary glazing can reduce noise by as much as 50% depending on the gap between the existing window and the new glazing, 50mm / 2 inches is the minimum recommended gap and 200mm / 8 inches is the maximum recommended gap.
Secondary glazing will also eliminate as much as 95% of surface condensation that is common on many single glazed sash windows. Saving you the hassle of wiping down your window boards and trying to keep your curtains dry.
It may not have been something you had thought of but secondary glazing is lockable therefore will be a particularly good deterrent to any burglar, particularly if you are in a ground floor flat.
So what are your options?
The cheapest option is to install a secondary glazing that can be lifted out for cleaning. This is a good economic choice if the window has been painted shut and you have no plans to fix it.
You can also get a casement style secondary glazing which is one big window which opens in the way allowing for easy cleaning which is obviously easier than lifting out the glass. If you have furniture or a TV in the way then their is a third option.
You can have vertical or horizontal sliding frames that are designed to mirror the look of your existing window. They can be lifted out should you require to do some maintenance on your windows.
Your secondary glazed window will have a hardwood frame securely fixed to your existing window and narrow aluminium glazing bars which will complement your existing window to be as unobtrusive as possible.
Irrespective of what style your existing window is there is a secondary glazed window available that will allow you to keep your decorative features of your existing windows.
Secondary glazing frame options include fixed panels, lift out panels, hinged casement openings and horizontal and vertical sliding windows.



