Review a flat-roof repair bid before approval

Find the diagnosis behind the total

The proposal should connect interior symptoms and roof observations without pretending they are the same location. Ask what was inspected, whether moisture testing or openings were performed, and which areas were inaccessible. The contractor should identify suspected and confirmed conditions separately. A bid that lists patching by the lump sum but never names the roof type, detail, or repair boundary gives the owner little way to compare outcomes or understand why the work is expected to help.

Read every transition

Review seams, laps, drains, scuppers, curbs, pipes, walls, parapets, edges, and previous repairs within the work area. Confirm which are included and how new materials connect to the existing system. Ask whether equipment must be moved, raised, disconnected, or protected by another trade. Drainage corrections, wet-insulation replacement, deck repair, coating, and full replacement should appear as distinct work rather than vague possibilities hidden inside one repair line.

Define changes and closeout

Unknown conditions are common, but the approval process should not be unknown. Require photos and written pricing before extra work proceeds except where an immediate safety response is necessary and authorized. Clarify site access, occupant protection, odor or noise limits, weather requirements, debris handling, and interior coordination. At completion, obtain mapped photos, product information, approved changes, invoice description, and contractor-issued warranty terms. Monitor the original interior locations during later rain and preserve those observations with the repair file.

• Compare the same base scope across bidders
• Separate optional drainage upgrades from leak repair
• Keep exclusions visible beside the price

Match payment to a defined result

Review deposits and progress payments against the written scope and applicable contracting requirements. A payment milestone should correspond to an understandable event, such as mobilization, documented concealed repairs, completion of the defined membrane work, or delivery of closeout records. Do not let a broad percent-complete statement replace photos and approved change documentation. Confirm the contractor identity and license information through the appropriate official source before contracting. Keep signed documents, payment records, and final invoice together so a future owner or manager can see exactly what the expenditure covered. Before final acceptance, compare the repaired-area map with the original bid and every approved change. Resolve missing photos, product records, or unfinished protection while the project team is still assembled.