I found this company online and thought would try their special cleaning machine (that suck water back in) found on their website.
They came for a quote, originally said the job will take 2 days to clean the bricks of the house in the photo (all sides), quoted $2300, I said no way this takes two days, and they said will try their best finish within 1 day for $1700.
Before they came, I checked again, and they are actually just coming with a standard power wash with chemical instead of the machine I was hoping for. Their reasoning is that it is cleaner doing the old fashion way.
The result after the cleaning is attached and done within 5.5 hours. Some part of the job was acceptable, while some is not so much. Their reasoning is that the chemical will ruin the driveway, so they will not use it for the front.
Even though their work attitude is good, just be aware of their over promising. They promised at least 90% new, and I will say it is about 70%. Please also shop around for price comparison.