What type of sash windows do I have??

[Ryan32]

Hi there,

I own a 18th century Grade II listed coach house with sash windows of varying age and appearance.

In particular there are 3 sash windows that look like modern replicas (interestingly these windows are the only things mentioned on our HE listing's details!). I know this section of the house was built in the late 70s - 80s so presume they are from around then.

Could anyone tell me what type of sash they are from the pictures? There's no cord, just a plastic pole that the windows can slide on.

For bonus points, what is our conservation officer likely to let us do to these if we wanted to change them? Presumably we'd be ok to replace with like-for-like single-glazed timber ones, any chance of installing something more efficient?

Many thanks,
Ryan

 

[aockenden]

My father in law owns a listed thatched timber frame and I believe the solution he came to with the council / conservation people was installing permanent storm window kind of things on the interior of the reveals. They liked it cause it didn’t effect the original windows from the outside point of view, he liked it because it essentially turned his cold single glazed windows into warmer double-glazed windows.

 

[ThornhillMike]

They look like spiral balanced sashes. They work on a spring loaded basis, as opposed to traditional cords and weights. My joiner offered them to me on our replacements but I've stuck with weighted cords. They're definitely not Georgian!

Spiral Balance Sash Windows | Modern Sash Windows | Windows & More

Our versatile and cost-effective spiral balance sash windows are made from sustainably sourced premium timber. Delivery is FREE to mainland UK!

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Can't answer the CO question though, thankfully my project isn't listed...

 

[Ryan32]

Thanks both - that looks like the right type of sash, I just didn't know the terminology!