Five steps, one line of arithmetic, no guessing.
Driveway, siding, deck, patio: each surface gets its own square footage and its own rate, because a wood deck and a concrete slab are not the same work.
Yours, not the internet's. It has to carry fuel, chemicals, wear, insurance, and travel. Start from what a truck-roll hour costs you and work backward.
Chemical treatment, sealing, second-story work: separate lines. Bundled add-ons disappear into the price; listed add-ons get accepted or declined on their own.
If the math comes out under your minimum, the minimum wins. Small jobs carry the same drive and setup as big ones.
Divide the quote by the hours the job will actually take, including setup and teardown. If the effective hourly is below what your business needs, the rate is wrong, not the customer.
The same math as an Excel workbook, plus a customer-facing estimate, a one-page proposal, an invoice, and collection letters with plain warnings about where state law takes over. $67, instant download, one business license. See what's inside.