First-time homeowner here. Had a roofer install drip edge flashing. It looks like a very bad job to me: doesn’t match the angle of the roof so the shingles pop up; installed unevenly so the popped shingles are wavy; newly exposed boards at the corners; small sections missing.
Can someone tell me if I’m right in thinking they need to fix this? And how, exactly, should it be re-done? (Does it all just need to be replaced, or can these pieces be altered to fit correctly?)