Furnace King performed AC and furnace inspection for me - for the price I think it was a decent job. However, the person that came to inspect the furnace performed a predetermined list of steps and I was not convinced the installation (inherited from prior owner of house) reliability was something this person could comment on (identify defects etc).
Based on my own research and investigation I had determined something faulty with the single pipe going out of the furnace (exhaust vent) which was not sloped correct and caused a lot of problems last winter (2010-11). So I had FK come back to install a second pipe for the intake to the furnace as well as determine a solution to the sloping problem of the existing venting.
There was a confusion between the booking folks and the techs - I told during booking that my basement was finished and the techs were surprized when they showed up that it wasn't. However I was glad that they honoured the price committment given to me over the phone. It took them two trips to get the job done and the second part of the trip was arrange by FK themselves within two weeks after the first portion of the job was done. They installed a second pipe which became the new exhaust after trying to establish a slope towards the furnace and the existing exhaust was converted to the new fresh air intake as it was obvious there was a sag in the pipe causing water accumulation.
Overall with the staff and the price points I was offerred I am very satisfied. I would have rated them higher but I have yet to operate the furnace coming winter after these fixes to test if everything has been installed properly and how their warranty response if any needed would be.