Question 1

Will it work on sash and period windows?

Accepted Answer

Yes, this is one of the most common uses. We size each panel to the reveal so the original window stays untouched.

Question 2

Magnetic, friction or brackets, which is best?

Accepted Answer

Magnetic strips are easiest to remove for cleaning. Friction-fit suits tight, true reveals. Brackets give the firmest fit for larger panels.

Question 3

Does acrylic yellow over time?

Accepted Answer

Cast acrylic from premium European mills is UV-stable and holds clarity for decades indoors.

Question 4

Can it be removed in summer?

Accepted Answer

Yes, most customers pick magnetic or bracket fixing so panels lift out in seconds.

Question 5

Do you measure or fit?

Accepted Answer

We supply cut-to-size panels with optional drilled holes. Measure your reveal and we cut to fit.

Question 6

Will it stop condensation completely?

Accepted Answer

It dramatically reduces it by warming the room-side surface above the dew point. In very damp rooms you may still need extra ventilation.

Question 7

Is planning permission needed?

Accepted Answer

No. Secondary glazing is internal and reversible, so it does not require planning permission, even on listed or period properties.