We paid a company to come and lay MOT/membrane and gravel, install a French drain around the house, and drains from the downpipes to the rain pond. Some of the work was to a good standard, but some we are having issues with.
We discovered that some of the weed membrane hadn’t been placed under the gravel, leaving patches where weeds were starting to come up. This has caused us to do further exploration of the hidden aspects of the work. I have dug out a couple of areas of the French drain, and found no membrane or sock on the pipe, meaning it will become silted up. Can I get views on whether to get the company back to put this right, or just let it be and hope for the best??
There are no inspection chambers so no way of accessing the pipes other than by digging down into the stone, which is a mighty PITA!
photo attached of one of my test digs…