The starting point. Verify the responsible contractor, compare the same scope and drawings, and understand how questions and changes will be handled. Presentation and a headline price are only part of the decision.
Know who will be responsible for the work.
Confirm the legal business identity shown on the proposal and agreement. Use the CSLB license lookup to review the relevant license record, and discuss insurance and project responsibilities with the contractor.
A marketing name, website, or phone conversation should not leave the actual contracting party unclear. Keep the documents you review and ask for clarification when names or responsibilities do not align.
Compare proposals on a common basis.
Ask each proposal to identify the drawing version, project assumptions, included work, allowances, and exclusions. A low total can omit professional services, utility work, fees, or restoration that another proposal includes.
Use our ADU budget categories to locate those differences. For a conversion, ask what existing components are assumed to remain. For a detached home, examine access, foundation, and service scope.
Ask how the project will be coordinated.
Find out who handles regular communication, design questions, scheduling, inspection coordination, and changes. Ask how an unforeseen condition will be investigated and priced, and how you will approve a decision before work proceeds.
Discuss the occupied property as well as the new unit: access, protection, delivery space, service interruptions, and restoration. The answers should fit your project rather than rely on a generic construction timeline.
Review the agreement and completion expectations.
Read the written scope, payment terms, responsibilities, and change process before signing. Confirm how applicable final signoffs, equipment information, warranties, and outstanding items will be handled. Raise unclear language with the responsible professionals before it becomes a site disagreement.
Explore our team's construction approach, organize your property brief, and use the permit guide to understand the approval handoffs that belong in the discussion.
Ask for an explanation of one real project decision.
Use your own property questions to test how a contractor communicates. Ask how access would be evaluated, what information supports an assumed utility route, or how the existing garage condition would be investigated. The answer should distinguish known information from the next step needed.
Then ask how that finding appears in the proposal. A useful explanation connects the condition to scope, responsibility, and any open pricing assumption. It should help you understand the decision rather than rely only on a general statement of experience.
For service-specific prompts, use the detached ADU site-walk questions, conversion investigation guide, or occupied-home coordination questions.
Build a short document comparison.
Keep the proposal, drawing reference, allowance list, exclusions, and scope clarifications together for each contractor. Note which version is current. If an answer changes the work, ask for it to be reflected in the documents used for the agreement.
Compare responsibility as well as price: design updates, City questions, utility coordination, inspections, protection, and restoration. If an item is outside the contractor's scope, identify who will handle it rather than leaving it as a gap between parties.
The budget comparison sheet is a useful companion. Avoid treating two totals as equivalent until their assumptions are understood. A more complete description may reveal that the proposals cover different work.
Discuss completion before the final walkthrough.
Ask what records and reviews are included at completion. Applicable signoffs, equipment information, agreed restoration, and remaining items should have a place in the handoff. Clarify who documents unfinished tasks and how their completion will be tracked.
Also ask how an issue raised during the work reaches the responsible person. The homeowner should know the agreed communication route instead of needing to resolve coordination between trades. Put important arrangements in the actual project documents.
Our construction quality approach explains why these details begin before finishes. Use the official CSLB lookup for the contractor record and keep identity checks separate from a website's appearance or search position.
Compare how two teams handle the same unknown.
Suppose the utility route has not been confirmed. Ask each contractor what information is needed, who obtains it, and how the result affects the scope. Compare the clarity of those answers rather than preferring whichever response sounds most certain.
Then ask where that assumption appears in the written proposal. A useful process makes the unresolved work visible and explains how the homeowner will review a change. A general assurance should not replace that explanation.
Repeat the exercise with access, existing-condition work, or a finish allowance relevant to your property. You are looking for a clear relationship between evidence, scope, responsibility, and the decision you need to make. This does not rank contractors; it gives you a consistent way to assess the information they provide.
Finally, check the agreement against the scope you discussed. If an important clarification has disappeared, resolve it before relying on the document.
Questions about this project.
Does this page rank or recommend other contractors?
No. It provides a comparison framework so you can assess credentials, scope, communication, and project responsibilities for the contractor you are considering.
Does a search ranking prove contractor quality?
No. Review the responsible contractor, credentials, proposal, and communication process directly. Search visibility does not establish the scope or quality of a particular engagement.
What should I do when an estimate leaves a responsibility unclear?
Ask who owns the task and have the clarification reflected in the proposal or agreement before relying on the total price.