We offer estimates, so call today! Sometimes the pipe can collapse or be squashed by the weight of soil above it this has happened where houses were built in the s or s and the pipes were made of a material callled 'pitch fibre'. Should home-buyers have a professional plumbing inspection done? To keep their skills current, plumbers must keep up with new technologies by reading and speaking with others in their field. If you’re looking to replace your boiler, you’re.