Robert and Allen are very helpful. Allen came to do the plumbing work on a Saturday (while other contractors did not even bother to do separate plumbing outlet for the sprinkler). Robert and his crew came to install the sprinkler system - 5 zones in total.
We had got four quotes in total and Richmond Hill Sprinklers was neither the highest nor lowest. However, their price includes the first year shut off service and there is no string attached to the 5 years warranty unlike some other contractors.
Robert installed an additional drip line for the row of roses after the installation was complete without any additional charge.
Thank you, Rob and Allen! The sprinkler system is just in time for this hot summer.