Commercial cleaning calls rarely start with an owner staring at algae. They start with a tenant mentioning the green streaks by the entrance, or a board member forwarding a photo from the walk to the mailboxes. Nobody is asking you about soft washing. They are asking you to make the property look handled.
One call, whole property
You should not need three vendors to make one property look maintained. The same crew brings the right method to each surface and leaves in one visit: the building exterior from ground to roofline, entrances, canopies and glass surrounds, sidewalks, drive lanes and loading aprons, down to the trash enclosure walls.
Who this is for
Property managers get one vendor across the buildings they manage, one schedule, and before and after photos for the file when an owner asks what got done. HOA and townhome boards get a walk of the property and a written estimate the board can vote on at one meeting. Hotels get scheduled around the low occupancy window. Storefronts and restaurants get done before open, so the first customer of the day sees a clean front.
A word about Dryvit before anyone blasts it
A lot of commercial buildings around here wear Dryvit, stucco, or EIFS, and that finish is thinner than it looks: a coat over foam board. A wand held close enough to strip algae will open the coat, and once water is behind it you are not hiring a cleaner anymore, you are hiring a stucco contractor and waiting on a claim. We soft wash it instead, and the growth dies without the wall getting wounded.
Send the address, how many buildings, and what the tenants keep mentioning. The quote comes back with a number, not a runaround.