you have to have experience in how much chemical cleans how many square feet and how long it takes you to do it. then you figure in all the perts, like gas there and back, chemicals, soaps, solvents, cleaners, window squeegees and windex, towels, rags, sponges, buckets brooms, dust mops and all your costs listed so you know how many 6 foot by 6 foot windows you can clean with one gallon of windex. How many bathroom floors you can clean with a gallon MR Clean all your pricing should be figured by the square foot done, divided into it s cost plus your labor and extra like transportation how many times a week, outside windows and second story windows, scaffold rental, floor scrubbing machines, pads and vacuums and bags trash cans on rollers etc etc etc.
door to door, be professional and have a list a references. Also if you have other employees do background checks on all of them and make sure your clients know this.
