Most leaks are not the roof failing, they are one part of it failing: a slipped slate, a cracked mortar joint, or flashing that has lifted away from a chimney. We find where the water is actually getting in rather than sealing over the nearest suspicious looking thing, and most repairs are done in one visit.

Water runs along timbers before it drops, so the stain on the ceiling is rarely under the hole. We trace it back rather than guessing.
If it is a genuine repair we say so. If the roof is near the end and a repair only buys you a season, we say that too, and you can decide.
Slates fixed the way they were meant to be fixed, not clipped over. Failed mortar raked out and repointed. Flashing dressed in lead rather than sealed with mastic.
It costs nothing to look at the other side of the roof while the ladder is against the wall, and it often saves a second call out.
You see what was wrong and what was done, and the ground is left clear.
Send a photograph of the problem and you will get a straight answer on what it needs, at no cost.
It depends what else we have on that week, but a leak goes to the front of the queue over a job that can wait. Call or message and you will get an honest answer rather than a date we cannot keep.
No. Quotes are free and there is no obligation to go ahead.
Some work can be made safe temporarily in the wet, but a proper repair needs a dry roof and dry mortar. We will tell you honestly which one you are getting on the day.
It depends what we find. A sound roof with a failed detail is worth repairing. A roof that is losing slates from every slope because the nails have rusted through is money down the drain. We will give you both numbers and let you choose.
If water is coming in, move what you can out of the way and put a bucket under it. Do not go up on the roof yourself in the wet. If a tile has come off and it is safe to do so, a photograph from the ground helps us bring the right thing with us.