They not solve, just create more problems
I hired them for my roof sheathing renovation but unfortunately after that i found shape of cracks in the issues drywall ceiling of my living room. I called to their manager but him never came, so call some one else, and told me about the damage due to the bad installation and poor quality of asphalt shingles, roofing felt, nailbase panels. I did to do a effort for achieve to get a budget for solve and fix this.