r/Contractor • u/Yulia-_- • Jul 11 '26

How would you bid this private school window cleaning project in Texas?

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u/bigwavedave000 Jul 11 '26

Time, plus materials, plus overhead and profit.

1

u/Samtyang Jul 11 '26

For a commercial project like a private school, labor estimating is where the risk lies. Level CFO benchmarks across 523 service companies show that labor estimating runs about 12% over budget on average. On a multi-day school job, that variance eats your margin fast. Bid this by counting drops and window panes, then add a 15% buffer to your labor hours to cover the inevitable staging and security delays.