Hi we have anthracite bifolds/windows in our extension which work well with the F&B strong white walls. The extension is red brick exterior & initially we were going for a lighter frame but the lead time didn’t match the build time frame so we plummeted for anthracite. What colour is the exterior of your house? That may help you decide. It’s also down to personal choice as to whether to match the colour of all of the frames or to have a different coloured bifolds.

Thanks LTS, it sounds lovely.

Our exterior is rendered and painted cream. Interior will be white. We're now thinking grey bifolds and lantern inside and out. Just got to chooee a floor! Decisions are hard!!

Hi, it is personal preference, but we do do a lot of bi-olds for clients where they match the same ocular with the windows, but also may just want anthracite grey bifolds with white windows. the other option we do is dual colour where you could have grey external framed doors and white on the inside which is a popular one...

Have a look at our website www.croydonwindows.com or projects on Houzz

Hi, anthracite grey with cream rendering is a very nice contrast and the tones compliment each other well. (Sorry, the pic is sliding doors not bifolds)

Grey doors with white windows is not a faux pas so don't be put off...

Finally, two-tone doors are an option if you want to match the lantern, having grey or black outside and white inside, however I always think this looks a little odd when the doors are open as you see the alternate colours together, and the inside of the frames on the hinges too. Horses for courses though. There are options for every taste out there.