We had 3rd Gen replace our inner and outer cellar doors, which included partially rebuilding the cinderblock stairway walls. The work was done efficiently when on premises. The contractors were polite and caused a minimum of disruption to my daily life. They cleaned up ALL debris. Couldn’t be happier with the service. If I were to look for any negatives, I would say that the delay in beginning the project was a bit long, but I do understand supply chain issues, so it really isn’t 3rd Gen’s fault.