A repair should address the cause
Replacing a visible damaged shingle may not resolve a problem at the flashing or roof deck. Ask what caused the damage, which components need work, and how the proposed repair connects to the surrounding roof.
Understand the limits of the repair
Material availability and the condition of adjacent roofing affect the options. Request a written scope covering the repair area, materials, cleanup, and warranty terms. If replacement is recommended, ask which findings support that recommendation.
Schedule a free exterior inspection to discuss the work your home needs.