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  • I usually use Rentokill, they usually charge a flat fee and get the job done. Only because there are so many cowboys in the drain clearing business.

    It's worth carrying out a bit of investigation yourself if you can. Maybe even poke around a bit. What are the symptoms?

  • An overflowing drain that takes water from the roof gutters.
    The grate is not moveable but there is a drain access metal cover about a metre from it.
    I don't have the poles to poke about in there though.

  • Definitely sounds worth giving it a poke, get the cover off to see whether there's something stuck before or after. A set of drain rods and/or the little bendy wire thing for u-bends don't set you back much.

  • That's exact;y the type of drain I unblocked last week. Had been blocked nearly solid with sediment and crap from years of neglect and probably from when we got our roof redone. I was able to get the cover off and used an attachment for my pressure washer (about £20 off ebay). Typical drain rods might not be flexible enough to get around a tight corner (the first set I bought were too stout). To be honest, even a fairly stiff garden hose would have worked for me given enough patience. The attachement I got I used to poke at the blockage to break it up and the pressurised water helped to flush it out of the way.

  • If you really don't fancy buying a set of rods or poking about Dynorod usually get it done for around £100.

    I've seen more complicated jobs (especially internal blocked pipes) cost £3-400 and people have paid upwards of £150 just to witness someone unblock an exterior drain in seconds with a rod.

  • The grate is not moveable but there is a drain access metal cover about a metre from it.

    Can you get a hose in it? Sometimes a little more pressure is all that's required to shift it.

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