Homeowner field guide
How to compare renovation bids without comparing only the totals
A lower bid is not automatically a better bid. Compare the same scope, assumptions, exclusions, payment protections, and contractor credentials before you decide what the number really means.
The comparison method
Five checkpoints, in order
01 / Start on the same page
Make the bids comparable before you rank them
A useful comparison starts with a common brief. Ask for written bids based on the same plans, specifications, scope, and known site conditions.
Collect at least three written bids
Use identical plans, specifications, and scope where possible so a price difference is more likely to reflect a real difference in work or assumptions. [8] [9]
Compare scope before the bottom line
Put each proposal side by side for included work, assumptions, exclusions, and responsibility allocation before you compare totals. [5]
Validate site and access assumptions
Check that flood, stormwater, wetlands, coastal, utility, and access requirements are reflected in the design and pricing where they apply. [2]
02 / Read the work
Look for a scope you can actually audit
A one-line total hides the questions that create change orders. The proposal should make responsibilities, review work, reporting, and contingency visible.
Require line items by major trade
Look for categories such as demolition, framing, plumbing, electrical, HVAC, insulation, drywall, flooring, tile, cabinetry, countertops, painting, trim, permits, and cleanup. [5] [9]
Name who owns each responsibility
The scope should identify responsibility for budgets, schedules, contracts, consultants, contractors, communication, and project risk. [1]
Confirm review and reporting deliverables
Ask whether document and cost review, site inspections, monthly reporting, and closeout reporting are included or excluded. [1]
Keep contingency visible
A clear bid identifies scope gaps and shows contingency separately instead of burying costs inside one broad contingency line. [2]
03 / Find the gaps
Turn exclusions and allowances into questions
Two bids can look different simply because one includes work the other leaves for later. Treat every blank, allowance, and “by owner” note as a question to resolve in writing.
List exclusions in plain language
Check specifically for permit fees, engineering, architectural revisions, dumpster costs, temporary protection, finish painting, and final cleaning. [5]
Define the material level behind each allowance
For flooring, tile, countertops, appliances, or other allowances, record the assumed material grade and ask whether the final selection changes labor as well as materials. [5]
Separate known work from concealed conditions
The proposal should distinguish priced work from possible hidden-condition work and explain how a newly discovered condition becomes a documented change. [5]
04 / Protect the money
Make payment timing follow verifiable progress
Payment terms shift risk between homeowner and contractor. The contract should connect payments to work you can verify and preserve leverage for unresolved punch-list items.
Check the deposit against your state rules
The research describes a 10%–25% range when no state law applies and flags a request for 40% or more before work as worth investigating, not as automatic proof of fraud. Deposit caps and requirements vary by state. [3] [4]
Tie payments to specific milestones
Prefer deliverables you can verify, such as demolition complete, rough-in complete, and final completion, instead of arbitrary calendar dates or percentages. [4]
Reserve a final holdback for the punch list
The research suggests holding back 5%–10% for punch-list resolution. Confirm the amount and release conditions in the written contract. [4]
Collect lien waivers at each payment
Request conditional lien waivers at each milestone, and verify the applicable mechanics-lien notice and filing deadlines for your state. [3] [4]
05 / Verify the contractor
Check the person, license, insurance, and track record
A polished proposal is not a substitute for verification. Use public records and documents you can confirm directly before signing.
Match the person to the license
Ask to see the contractor’s pocket license and photo ID, then verify that the active license appears on the relevant state board website. [8] [9]
Verify bond and insurance documents
Ask for a certificate of general liability and workers’ compensation insurance, then confirm the insurer, policy number, and coverage limits directly. Bond requirements are jurisdiction-specific; the research gives California’s $25,000 license-bond figure as an example. [8] [9]
Check references and recent comparable work
Request verifiable references and photos of recently completed work that is similar in type and scale to your project. [9]
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