West coast Canada. We pay way too much for stuff up here and are seriously under-served for pressure wash industry. All the goodies are down south in your wonderland.
I do 80% commercial. Mostly walkways and flatwork, not a lot of parking garages but some. I was at a job last week and the property manager asked if I could get all the gum off her sidewalks… I sighed and said I needed a hot water unit for that. We agreed I would rent one next year and get it done up right. Of course I’ll charge double for the gum removal.
Have you talked to Braber Equipment? https://www.bepowerequipment.com I think they are local to BC… I have one of the 4GPM 4000PSI heated and 8GPM 3000psi cold water units and have had decent luck. Depending on your budget maybe easier on the wallet? Food for thought