hi
i own a semi with a single garage on the side but the external wall is only single brick what would have to be done to build a cavity wall above and whaT WOULD THE AUTHORITIES expect to be done and how much would i expect a builder to charge me any help would be appreiated
thanks chris
i own a semi with a single garage on the side but the external wall is only single brick what would have to be done to build a cavity wall above and whaT WOULD THE AUTHORITIES expect to be done and how much would i expect a builder to charge me any help would be appreiated
thanks chris