I have a plumbing problem as follows:
"Plumber called out to investigate reports of a blocked drain. After testing points inside the house, it was apparent the blockage was located between the overflow relief gully and main shaft at the rear of the property. They managed to clear the drain by way of high-pressure water jet upstream of the main shaft.
Once cleared they used the CCTV and locater to identify a collapsed section of pipe under the rear concrete patio. They used camera downstream of the shaft to find a break at the base.
To rectify they will need to remove a section of the fence to gain access for their machine, cut and remove a section of the concrete patio, excavate and repair all effected pipework. Once complete they will backfill, level and clean site of all debris."
I'm in the process of obtaining additional quotes.
See attached pictures of location and inside pipe:
Are the plumber's comments consistent with the photos?
Can the plumber go under the patio via the soil behind it without having to remove a section of the patio?
Is the price reasonable for the Sydney North West?
Are there any cheaper ways to fix the problem?