What should I ask an ADU builder on the first call?

Ask about finished ADUs, San Jose permit experience, who handles drawings, what is excluded, how utilities are priced, and when the quote becomes firm.

Should I ask for a price on the first call?

Yes, but treat it as a rough range. A real quote needs a clear scope, site details, and often drawings.

What is a bad sign on the first builder call?

A bad sign is a very low price with no clear scope, no permit plan, no utility discussion, and no written exclusions.

ADU Builders

ADU builder first call: questions to ask before you book a bid

A first call should not be a sales pitch only. Use it to find out if the builder can handle your lot, your city, and your budget.

Published July 24, 2026

The first ADU builder call can save you weeks. It can also waste time if you only ask, “How much does it cost?”

A better first call checks fit. You want to know if the builder understands ADUs, San Jose permits, utility work, and clear quotes.

Ask these before you book a site visit

Have you finished ADUs near San Jose or the South Bay?
Do you handle design, permits, and construction, or only construction?
Who answers city plan check comments?
What is usually not included in your first quote?
How do you price utility trenches and panel upgrades?
When does the rough price become a real bid?

Question 1: Have you built ADUs near San Jose?

Ask for finished ADUs, not only renderings. Finished projects show how the builder solves rooflines, windows, siding, access, and privacy.

Question 2: Who handles the permit process?

San Jose uses online permit steps and SJePlans for plan review. Ask who submits the plans and who responds if the city asks for corrections.

Question 3: What is not included?

A quote can look low because key items are missing. Ask about design, engineering, permit fees, utility work, trenching, appliances, finish allowances, and landscaping repairs.

Read this too: ADU quote missing costs.

Question 4: How do you handle utilities?

Water, sewer, gas, power, and electrical panel work can change the price. Ask if these items are included or only estimated.

Question 5: What kind of firm are you?

Some firms are contractors. Some are design-build firms. Some are prefab vendors. The right fit depends on your project stage.

Start here if you are unsure: ADU contractor vs architect.

Question 6: What would make this project hard?

A good builder should tell you about risk early. Tight access, big trees, long utility runs, slope, and panel upgrades can all change the job.

After the call

Write down what each builder said. Then compare the scope, not just the price. A clear quote is often safer than a cheap quote.

You can also use the Bay Area ADU builder finder to compare ratings, reviews, websites, and Google categories.

Frequently asked questions

What should I ask an ADU builder on the first call?: Ask about finished ADUs, San Jose permit experience, who handles drawings, what is excluded, how utilities are priced, and when the quote becomes firm.
Should I ask for a price on the first call?: Yes, but treat it as a rough range. A real quote needs a clear scope, site details, and often drawings.
What is a bad sign on the first builder call?: A bad sign is a very low price with no clear scope, no permit plan, no utility discussion, and no written exclusions.

Have a builder call coming up?

Send the builder name and your rough ADU plan. I can help you choose the questions that matter most.

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