You want a plumber because it's drainage. The plumbing company will hire a scaffold if it's needed (probably is).
Gary at JSL plumbing (https://jsl-plumbing.com/) a company I've worked with before which would definitely be able to price this (assuming they have availability).
You might also try Jack at MCG Heating (https://www.mcgheatingsolutions.com/) but he specialises in boiler installation so he might not get back to you about this. |