Rain was spluttering out of the gutter along the top of our roof, so we got someone to look at it, establish what the problem is and quote to fix it.
Two men came round, climbed up a big ladder, had a look, looked round the bottom of the down drainpipe, and established that there was a huge, thick weed growing in the drain along the side of the house (ie the one underground) which was entirely blocking the drain along the side of the house and stopping the rain even coming down the down drainpipe. They un-connected the down drainpipe from the top gutter (as a temporary measure) so the rain currently just goes straight off the gutter along the roof onto the surrounding ground.
They had a bit of a look at a manhole cover which straddles the boundary between our house and next door, to see if they could access the drain from there, but couldn't (because someone in years past has helpfully half-built a wall on the manhole). They told DH that they'd need to come back and dig up a bit of the front garden (just gravel) so they could get to the drain and hopefully excavate out the weed from the pipe, so the water can flow freely again, and that they'd send a quote.
Now they've sent an invoice for £140 (inc VAT) and a quote for £324 to actually get to the drain and fix the problem. DH can't remember exactly how long they were there, but thinks it was about an hour.
Is it normal for them to have charged £140 just to come out, and see what the problem might be? They didn't do anything to fix it. Or AIBU because clearly tradesmen can't live on air, and they did spend an hour investigating and determining what the next steps would be.
Any advice on whether this is normal practice or not?