The company was asked to indicate what could be done to maintain the patency of vents in a townhouse complex. Unfortunately, the company never called to schedule such a visit even though the female telephone contact said they would on 2 occasions. The company was contacted via telephone X2 to check on the patency and integrity of townhouse vents. Birds had been entering the vents and occluding them. The female who answered the telephone stated that the owner would contact me. This contact was never made. This company is very unreliable.