I needed an inspection for my chimney to see if there was a problem with the venting, but was having a lot of trouble finding a company who could accomplish this. This is because I have a very old gas appliance which has a very small vent diameter which apparently doesn't allow for the cameras of chimney sweeps to fit. I finally called Rooftop Chimney Sweeps to see if they might be able to help. The owner returned my call and spent nearly 30 minutes asking questions and getting more information about my fireplace/chimney concerns. He even brought up my address on Google Maps to look at my building and review the chimney structure, etc. to help determine what kind of inspection could be done. I really appreciated the time he took speaking with me, and it's clear he is extremely knowledgeable. An appointment was set for a few weeks later. The technician (Perry) and assistant (Christopher?) that visited were very friendly and polite, took COVID precautions, and were also conscientious about keeping things clean during their work. They were very thorough, inspecting both inside and outside on the roof. They even found a way to scope the chimney despite the small vent. I was able to see the video of the vent as they were scoping the chimney. An inspection report was sent to me later that day. I am very pleased with the service I received and feel much better now about the safety of my chimney and fireplace.