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The useful part, first
- Compare the same scope of work.
- Verify credentials directly.
- Put changes and approvals in writing.
Write the problem before requesting bids
Start with a short description of what you need solved. Include photographs, access constraints and the result you want. If you do not know the cause, request an assessment rather than instructing every bidder to perform the same guessed repair.
For a planned project, give each contractor the same basic information. CSLB recommends comparing written bids based on the same plans and scope. A low total is difficult to evaluate when one proposal includes removal and cleanup while another leaves those tasks to you.
Verify the actual business doing the work
Use CSLB's resources to check the contractor's license status and whether the classification fits the proposed work. Match the name on the proposal with the business you verified. Ask who will be on site and whether subcontractors are involved.
Check references for similar recent work and ask about insurance. A friendly referral is useful context, but it does not replace your own verification. Confirm how to reach the company after the job and who will handle a problem. Keep a copy of the proposal and contact information in one project folder.
- Who is responsible for permits and inspections?
- Who performs the work?
- How are damage, cleanup and follow-up handled?
Make the agreement specific
CSLB's homeowner checklist calls for a detailed written scope and written changes. Include materials, schedule, exclusions and how unforeseen work will be approved. Ask for a payment schedule tied to the work and review applicable deposit rules through current CSLB guidance.
Avoid treating a verbal promise as part of the project until it appears in the agreement. If a change affects cost or timing, pause to document it. Ask what is meant by completion, including inspections, cleanup and any promised owner instructions. Those details help both parties recognize when the original agreement has been fulfilled.
Stay involved without directing technical work
Keep a dated record of decisions, progress photographs and payments. Raise concerns promptly in writing and give the contractor a clear description of the issue. Do not instruct workers to bypass required approvals or safety procedures to save time.
At handover, collect manuals, warranties, inspection records and a contact for service. Review any unresolved items before calling the file complete. This process does not guarantee every project will be smooth, but it gives you a clearer basis for decisions. You can be an informed homeowner without pretending to be the roofer, electrician or plumber doing the work. Save the final agreed scope alongside the original estimate for an easy comparison.
- Next step: create one written scope and use it consistently when requesting estimates.
Sources & further reading
Sources checked September 19, 2026. Requirements, schedules and availability can change. Check the linked source before acting.
General homeowner education. Follow equipment instructions and local requirements. A qualified professional can evaluate your property and circumstances.
