I agree with the reviewer that said this company is difficult to deal with. They are knowledgeable, yes, there is no doubt about it, but pride and some amount of rudeness does not let them be the ones they claim to be. I went with them for a big tree treatment against spruce adelgids because there are not many companies out there to do it. They did the first application in the spring and were supposed to come by the end of September beginning of October for a second round of horticultural oil spray. They did not show up and I though that they forgot and will not do it, only to have a big surprise visit on November 1st , just a few days before a massive freeze. Way too late! In the fall, the immature female adelgid, small, globular, and wingless (1.2-1.7 mm), finds a spruce on which to overwinter. If the treatment is done too late, in particular that in Canada the poisonous treatment is not available and only the horticultural oil is allowed, timing is crucial.
On horticultural sites it is clearly stated that horticultural oil or insecticidal soap must be used in late July to mid-August after galls have opened, but before adelgids can move to alternate hosts.
In short I am disappointed by the service I received: one month too late and an unannounced visit that caused that many of our belongings to be tainted by the oil.
In spring I also asked for a quote for some pruning for several trees on the property, but I could not afford it. Their quote was almost twice as high as the nearest competitor.