Standard soft coat glass with Low Emissivity (Low E) glass on the inner pane.
An additional pane of glass for improved thermal and noise reduction values. Will cost approximately 20% more than standard double glazing.
Extra coating applied to glass to improve solar reflection and thermal value. Will cost approximately 10% more than double glazed quote.
Using an 8.8mm laminated pane. Will cost approximately 10% more than standard double glazing.
Outer pane chemically coated to react with rain water and make it viscous (sticky) and therefore carry more dirt away with it. It also activates to allow water to run off quicker. Will cost approximately 10% more than standard double glazing.
Stippolyte and Satinovo (sandblasted) designs most popular. Will cost approximately 5% more than standard double glazing.
Glass is toughened through heating, which means it breaks into safe chunks when broken, not dangerous shards. This is used in doors and windows near doors or near ground level. Will cost approximately 5% more than standard double glazing.
One pane in glazed unit is two pieces of glass laminated together for extra strength. Will cost approximately 15% more than standard double glazing.
We can apply 9mm lead in a variety of designs (diamond/square/custom) to our glass for a more traditional look.
We can either put bars inside the glazed unit or at a higher cost, outside the glass on both inside and outside to match the frame.
Our units can also come with blinds inside the glass.
The easiest way to understand how efficient glass is, is by thinking of it as a ‘heat mirror’. The more effective the glass, the more of a ‘heat mirror’ it is, stopping heat loss by keeping heat inside the house but also keep heat out preventing over-heating.
All our products comply with Building Regulations U-value requirements as standard. Sometimes an architect will require a particularly low U-value to achieve an overall thermal rating (or ‘SAP’ calculation) for the building they are designing. In this case, we must upgrade the product and glass specification to reduce the U-value.
Window Energy Rating is measured on a scale from A-G with A being the most energy efficient.
If you do want to extend further than this and planning permission is required, we can manage this for you at an extra cost of £500. Your project will probably take longer, due to the time it takes for the council to grant planning permission.
A conservatory generally has no columns and the window frames are joined together all the way around.
It becomes a ‘modern orangery’ when brick columns or corners are introduced to the structure. In addition to this, if a brick parapet wall above the windows and doors is introduced, this is a ‘traditional orangery’.
It becomes a Loggia, when the columns and corners are aluminium clad Loggia columns.
Sliding door prices can skyrocket if the glass units become very big. For example, each sash on a bi-fold door can only go to 1200mm wide x 3000mm high, however on sliding doors, each sash can be anywhere up to 3000mm wide x 3000mm high.
|Bi-folds||Min/Max Width (mm)||Max Height (mm)|
|Smart Visofold 1000||600 / 1200||2500|
|Origin||700 / 1200||2500|
|Schuco ASS70FD||700 / 1200||3000|
Sliding doors are more complicated as the weight per pane (Kg) determines the maximum size. For example, Smart sliding doors can go up to 250Kg per pane and Schuco can go up to 300Kg per pane.
If you have any further questions which are not answered above, contact DWL today. Call us on 01795 383 688 or e-mail us at firstname.lastname@example.org.
DWL Windows is rated 4.88 stars by Reviews.co.uk based on 170 merchant reviews
Discuss your project with us further by booking a design consultation.Book Appointment