Fixed-price (lump-sum): the contractor completes the defined scope for a stated price regardless of actual cost. The contractor bears estimating risk; the client bears change order risk for scope growth. Appropriate when the scope is completely defined. Cost-plus: the client pays actual costs (labor, materials, subcontractors) plus an agreed contractor fee. The client bears cost risk and owns unused contingency. Appropriate for projects with significant scope uncertainty or where maximum cost transparency is desired. RainFire Builders offers both for appropriate project types. Under either structure, the same line-item estimate and written scope discipline apply, and monthly job cost reports track the project’s financial position in real time.