I needed to have someone look at an old gas insert that had been installed by the previous owner. Albert Nahman responded to my email inquiry within 30 minutes and scheduled an appointment for that Saturday. The technician was on time and professional. He inspected the insert and then showed me how to operate it. He also answered my questions about tankless water heaters. When I get around to installing one, you can bet I'll be back in touch with Albert Nahman Plumbing & Htg.