HICA: California's Home Improvement Contract Act, Decoded

Suppose a California painter wins a residential job with a signed estimate and asks for half the price to buy materials. The scope is clear, but the payment request and missing notices can still cause trouble. This illustrative situation shows why a California home improvement file needs more than a customer signature.

“HICA” here means California's home improvement contract rules, centered on Business and Professions Code section 7159. Use this as a review guide; the actual contract needs the applicable statutory wording and format.

Choose the right contract before the sale

CSLB's contract overview states that covered home improvement projects over $500 require a written contract. A licensing exemption is a separate question; do not substitute its threshold for the contract rule.

Record the property, buyer, requested work, and sales circumstances in the intake form. Then review the trade contract basics against California's additional requirements.

A generic contract agreement can organize the job, but its presence does not establish California compliance. Have the completed form reviewed for the transaction before using it.

Make the packet complete and readable

CSLB's contractor guide covers identity, work descriptions, price, dates, payment schedules, notices, and formatting. It calls for a signed and dated customer copy before work starts. Do not shrink notices to fit a page or leave blanks to finish later.

For the office review, check these groups together:

Keep selections and exclusions in the identified scope attachment. CSLB's binding-agreement guidance stresses completing the agreement and putting promised details in writing. An attachment cannot replace a notice that must appear in a particular place or format.

Match collections to the legal payment schedule

The ordinary down-payment ceiling is the lesser of $1,000 or 10% of the contract price. For an illustrative $8,000 job, that is $800. Special-order materials do not create an ordinary exception, according to CSLB's contract overview.

Beyond the down payment, do not collect ahead of completed work or delivered materials. The contractor guide explains progress payments in dollars and cents tied to described phases. Replace “second draw when requested” with the actual phase, materials, and amount.

Make each invoice identify the relevant contract milestone and supporting delivery or work records. Rare statutory bond or joint-control arrangements need separate review; renaming an advance a “materials payment” does not create one.

Deal with changes before doing them

California's contract overview calls for written change orders signed by both parties before the changed work. Describe the work, price adjustment, and payment or completion-date effect in the change order.

Use the signature-before-work workflow when a customer adds work or an opening reveals a different condition. Record credits and removed work as carefully as additions.

Section 7159.6 also preserves possible legal or equitable recovery to prevent unjust enrichment. That qualification is not a reason to skip written approval or promise that every undocumented extra is collectible.

Check cancellation and repair rules carefully

The 2026 CSLB law book includes current section 7159. Check its email cancellation details, contact information, and subcontractor disclosures rather than copying an old form.

Cancellation requirements depend on the transaction. CSLB's warnings page addresses the usual three-business-day right and five-day protection for buyers 65 or older. Section 7159 also provides seven business days for specified declared-disaster work. Use the applicable notice, language, delivery, and timing requirements; a generic cooling-off notice needs that review.

The law book's section 7159.10 defines a narrow service-and-repair path: no more than $750, buyer-initiated contact, only reasonably necessary work for the reported problem, and no payment until completion. Completion includes fully correcting the conditions and building-department acceptance when applicable. This path still requires its own written contract and disclosures. Upselling or taking early payment can bring section 7159 requirements back into play regardless of price.

Check who is selling the work

CSLB's salesperson guidance requires registration for people soliciting, selling, negotiating, or executing home improvement contracts for licensed contractors, subject to specified exceptions. Verify the person's actual role and exception rather than relying on “estimator” as a job title.