Normalize the scope first
Write the same project scope beside every bidder. Check demolition, disposal, protection, labour, materials, delivery, cleanup, permits and final finishing. If one quote excludes a task included by another, add an estimated adjustment instead of comparing the raw totals.
The free GTA Home Pros workbook places scope, tax, allowances, exclusions, deposits, warranty and timing in one comparison table.
Separate fixed prices and allowances
A quote can look lower because it contains small allowances for cabinets, fixtures, tile or electrical work. Record every allowance and ask what happens when the final selection costs more.
Calculate the real total
Compare base price, taxes, known extras and likely allowance adjustments. Also note whether permits, engineering, design, disposal and delivery are included. A complete quote with a higher headline price can be easier to control than an incomplete quote with many open items.
Compare payment schedules
Record the deposit, each milestone payment and the amount held until final deficiencies are complete. Tie payments to clear deliverables rather than vague dates whenever possible, and keep invoices and receipts with the project record.
Review timing and responsibility
Ask for an expected start window, duration, major dependencies and who orders long-lead materials. Record insurance, warranty and reference checks beside the price so the final decision is not based on cost alone.
Document clarifications
If a contractor answers a question by phone, summarize the answer in writing and ask that the final quote or agreement be updated. The comparison sheet should reflect the version you can actually rely on.