I have a single story home with a complex tile roof and no solar panels. The patio roof it tar and gravel.
Last year my 20 year old patio roof leaked. I received an estimate from Lyons and another from a no-name roofer. The price difference was almost 2:1 so I decided to go with the no-name roofer. It a small job so I figured worth the risk. I guess the roof will hold but the visible carpentry was awful and there was zero customer support and no guarantee.
This year my main roof started to leak. Lesson learned - went with Lyons. Excellent estimator, excellent foreman with world class customer support. Workers were courteous and careful. They never left the job at the end of the day with any exposed decking nor garbage on the ground.
Final walk through was mostly about caring for the roof so debris doesn't block water channels. Very helpful information. The final price was exactly what the estimator had specified. I now have a written guarantee for 15 years and would not be surprised if it lasts a lot longer than that.