They replaced the roof, windows, doors and siding as part of one contract. During installation of the siding, my dad had to point out to the crew that they needed to make a new chalk line because they were not applying the siding straight. They came back once a year later to fix a portion of the siding that was coming off, and it subsequently came off again. (Siding should hold for years and years). When I contacted them again, they did not respond. My doorbell wires were severed at the time the doors were being replaced. The exterior furnace vent was damaged, and according to the furnace inspector it was from something falling from quite a height. This happened at the time the roof was being done. The only ones who did a good job through this contractor were the shinglers. Even after having checked references, and doing all of the things one should do when considering a company, I ended up with these issues. Definitely wouldn't hire ANCO again.