Our 5-year-old roof had a small leak, so we contacted 3 companies for estimates. The first company told us we needed a whole new roof for $10K. The second told us the whole front of the house's roof needed to be replaced, for $5K. The Dykstra Brothers came to see the roof and identified the issue as poorly installed flashing along a valley of the roof. The quote given was for $500.
They were honest, courteous, fast, and we no longer have a leak!
When we do in fact need a new roof or siding, we'll call the Dykstra brothers.