Frequently Asked Questions

Got a question?

We’ve compiled a list of frequently asked questions. If we’re missing something you’re curious about, please feel free to contact us and we will do our best to answer it.

Our Process

Southern Windows manufactures and assembles all of the bespoke windows and doors in Watford factory. It means our customers can have their projects ready within few weeks from their drawing approval.

Southern Windows factory is located in Watford , Hertfordshire.

Southern Windows does full window/doors replacement only.

As a business we only carry out repairs on our own products under a guarantee.

One of our experienced engineers will carry out full site survey within 3-5 days from acceptance of the contract.

We have our own fully employed and trained fitters with more than 5 year experience.


Southern Windows does not currently offer ‘Velux’ windows.

All our aluminium product can be powder coated in range of over 200 single and dual RAL.Colour swatch available on request.

The spacer bar is the bar that separates the panes of glass in sealed units. Ultimate Swiss Spacer sets as benchmark for spacers in energy efficiency, comfort and stability. It efficiently reduces heat loss at the edge of the glass.
Available in few colour options.

Yes we can manufacture and fit uPVC windows and doors.


A bi-folding door can open either inside or outside. They can all slide the same direction, or with larger doors such as a 7 panel, you can have some doors folding one way and the remainder to the opposite direction. You can even install them as a part of a corner arrangement.

Bi-folding doors can also be specified with one leaf serving as the main door, .so you can enter and exit without having to slide all the leaves back fully or partially every time.

We recommend you always check with your Local Authority. However the replacement of existing doors with a new door generally does not require planning permission.

Conservation areas or listed buildings may have constraints applied. Building Regulations must always be adhered to as well. Contact us and we can help you further

Our bi-folding doors are always manufactured to your order and designed, made to work alongside your windows, other doors and your building design.

Yes. Our bi-folding and sliding doors can come with integral blinds.
Please contact us for more details.

Our sliding and bi-folding doors come with multiple threshold options so you can definitely find the one most suitable for your home.