As a retired former contractor, I was apprehensive a little because I hired this contractor on a referral from an acquaintance, but one who had not had roofing done. I was desperate as it's hard to find good roofers here. Hard workers + helper, competent, had all quality equipment and the experience, started and finished in only two days flat. Cut no corners. I would absolutely hire Lang again for other contracting work on my home and property. I waited until springtime to write this review to make sure the job held up through the winter, with no leaks or loose shingles. I live on an open to the west hilltop with horrible winds and winter snow. Shingles lift and peel easily and leaks occur if any sloppiness in application. Am totally satisfied with their work. Cannot say anything negative or I would.