Period homes and older clay drains
A clay drain that has been in the ground for decades can look fine from the surface and be in poor condition underground. The camera shows cracked pipes, joints that have moved, roots that have grown in and sections where waste is collecting.
That matters if the drain has blocked before or you are about to buy. If it is blocked at the moment, see the Reigate blocked drains page.
About CCTV drainage surveys