When I first went into business almost 6 years ago, Delco was the only board around and I was looking for answers, mainly what to charge. I seen where guys were getting $300 or more to wash houses. My first bid was a 2 story about 2500 sq. ft. I quoted $2 a linear ft. like everybody was saying and my bid came to $280. The customer almost fainted and I'm standing there wondering what's wrong. This is the going price is it not? That's what the guys on the BB said it was supposed to be. Well, not in my neck of the woods. Single storys were being washed for $75 and 2 stories a little more.
This is where the adventure began. In order to make money, I had to cut my cleaning time. I asked everyone local that would tell me anything. I tried everything. I bought chemicals (most of them useless, some I may still have somewhere), I mixed chemicals, I tried extension wands, ladders, prayer to the pressure washing Gods, you name it and I was willing to try it.
Here's what I learned.
Invest in hose reels. Don't drag your washer around. If you bring it in the truck or on a trailer, leave it there. A hose reel can cut out 30 minutes of set-up and take down time.
Trade the extension wand in for another 100 ft. of pressure hose.
Invest in an x-jet or similar nozzle.
For chemicals, you need something that has no less than a 20-1 dilution rate. Anything less and youre wasting your time. I use sodium hydroxide based cleaners. Important, not straight sodium hydroxide but sodium hydroxide combined with some type of surfactant. If you can't find anything local, and NO, home depot does'nt have it, the closest thing I know is Delco's DNB-1430.
Next thing you need is Clorox, bleach, sodium hypochlorite or whatever you want to call it. An .89 cent bottle of K-mart brand does the same thing as the $1.50 stuff. Don't worry about the plants. It wont hurt them the way you are using it.
Mix 3 gallons bleach to 1-2 gals. of your sodium hydroxide cleaner. 5 gals. should clean 2500 to 3000 sq. ft. unless you are really dumping the stuff on.
Soap one entire side of the house. Top to bottom, bottom to top side to side it doesnt matter. Whatever way feels most comfortable to you. I soap the gutters first and work my way down. Once you have the entire side soaped go to the next side and soap it down the same way. When that side is soaped, go back to the first side and using the same nozzle with the chemical line disconnected, rinse it. Again it doesnt matter how just rinse it. Once you have it rinsed, go to the second side and rinse it. If I'm parked in front of the house I will usually start with the right side of the house moving to the back. When those 2 are done I pull the hoses back to the front and wash it and the left side the same way. I roll the hoses up, wash out my injector and the 5 gal. bucket, have a drink of water, clean the sweat off and go collect the money. With practice and the right tools, you should be able to wash a 2500 sq. ft. house in 1 to 1 1/2 hours. Think about it, 5 minutes to put soap on one side and another 10 to rinse it, 30 minutes setup and take down time. Granted, I'm not stopping to smell the roses or pet the dog either. If I think I may have finished to quick, I may wash off their walkway for some brownie points...lol
This will only work if your chemicals are strong enough and you have an injector that will apply them from the ground.
As far as pricing goes, I usually average between $75 and $100 an hour. Depends on how late I stayed on this computer the night before.
Hope this helps
Les