They did an adequate job of shingling the roof. they suggested the "whirlybird' type of vents for the roof ventilation. Now when the wind blows it is noisy. Don't see any of my neighbours who have had shingles done lately with this old style of ventilation. Also did not give us any time to inspect the work upon completion. Don;t take credit cards. Supposed to have give us 40 year warranty but says 30 only. Could be potential problem down the road. Don't return my calls.