I used Megacity for about 15 years and until the last 3 or 4 years, I trusted them, mainly because of Darin's friendly demeanor.
In the last few years, I have encountered several instances of getting voice mail when trying to book an appointment during business hours no matter what time of day it was. Businesses with land lines should answer the phone.
I first had them install ductless AC and then used them for boiler cleaning. The installer of the AC assured me that there was no maintenance required and that it would be cheaper than window units - it isn't. After about 12 years, the indoor units started leaking so they cleaned up the drip tubes and checked the compressor. At the next service call, I was told that the indoor units should be cleaned because dirt causes imbalance in the fan and that these units were meant to be turned on and left on for the duration of the season. I did that and spent a couple of days cleaning the units as best as I could but the unit that is used the most, started leaking in 3 areas instead of just one. I guess dirt was not the problem! Using 2 buckets and a towel to catch the drips is not a solution. Since none of the suggestions worked, I decided not to bother with another service all and bought a room air conditioner instead.
Now on to boiler cleaning - the last carbon monoxide reading was 86. The one before that 82 and before that, 78. These are within the limit but the rise, indicates a problem that I did not clue in on at the time because I had no idea what components are in a boiler.
I had another company clean the boiler. The reading is now 38. The conduit/piping to the chimney were clogged with dirt. The heat exchanger was uncovered and it was filthy - 22 years' worth of dirt. The numbers speak for themselves.
I now have a much better understanding of how it all works and what the components are and what a proper cleaning entails. It's much more than taking the burner cover off and vacuuming the burners for 22 years.