Tips for Checking if Walls are Insulated | Bag-a-Builder
https://www.bagabuilder.co.uk/blog/how-to-check-if-walls-are-insulated/
If you are constructing your home or just shifted into a new one then make sure that the walls are insulted ensures future saving on heating costs. If walls are not insulted find a Tradesmen or local Tradesmen with Bag-a-Builder and get your walls insulated.