California Home Improvement Contracts: Contractor Rules

A signed and dated home improvement contract is the foundation for a compliant project. It needs clear terms, required disclosures, and a payment schedule that follows state law.

Your protection starts with a complete, signed agreement that sets out the job for the homeowner, not a proposal with a signature line. Clear paperwork helps you explain the work, collect earned payments, and handle changes without unnecessary disputes.

Start with the contract rules, then build your payment and disclosure process around them.

Key Takeaways

California's rules cover both the agreement and how a homeowner manages the job.

• Covered home improvement work over $500 requires a written contract for labor, services, and materials.
• Payments must match completed work or materials delivered.
• Get written approval before starting changed work.

Required disclosures and cancellation notices also belong in the contract process.

When a Written Contract Applies

The threshold is over $500. For covered home improvement work, Business and Professions Code section 7159 applies when the aggregate price exceeds that amount.

That total includes labor, services, and materials. Don't treat each invoice or phase as a separate project when you're contracting for one improvement.

Covered work includes residential remodeling, alterations, repairs, and other improvements. A kitchen remodel, roof replacement, or bathroom renovation generally falls within these rules.

California Business and Professions Code section 7159 sets baseline requirements for a written contract. The written-contract requirement and contractor licensing rules are separate issues.

Rules can vary by project and agreement type. Swimming pools, qualifying service-and-repair contracts, and disaster-related repairs can involve additional or different requirements.

For an unusual project or a heavily negotiated home improvement contract, qualified construction counsel can help you choose the right contract structure.

California Home Improvement Contracts: Required Terms

Your agreement should tell the homeowner who is responsible, what you're building, and how the job will proceed.

Identify the Parties

Include your business name, address, and license number. Identify the buyer and the property where you'll perform the work.

The agreement needs dates and signatures. Give the buyer a copy signed and dated by both parties before work begins.

Keep that executed copy in your project file. A signed estimate doesn't replace a compliant contract if it leaves out required terms or disclosures.

Your contract, invoices, and licensing records should identify the same business. This helps clarify who accepted the work and who is entitled to payment.

Define the Job and Timing

Describe the work, significant materials, and equipment clearly. Include the total price, approximate start and completion dates, and payment schedule.

A broad description such as "remodel bathroom" leaves too much unresolved. Explain the actual work and identify material selections or allowances.

Define exclusions as well. Clarify permit responsibilities, owner-supplied fixtures, and work outside your bid before scheduling begins.

The CSLB sample home improvement contract provides a useful reference for contract organization. A sample isn't a substitute for checking current statutory requirements.

Keep Down Payments Within Limits

For an ordinary covered contract, your down payment can't exceed $1,000 or 10% of the contract price, whichever is less.

On a $6,000 contract, the limit is $600. On a $20,000 contract, it's $1,000. A larger project doesn't automatically allow a larger deposit.

If you charge a down payment, the contract needs the "Downpayment" heading and amount. The statutory limit warning must appear in at least 12-point boldface.

The CSLB home improvement contract guide explains the deposit restriction and related payment protections.

Calling the charge a scheduling fee, mobilization payment, or material deposit doesn't make an excessive advance payment compliant.

Custom materials can create a cash-flow problem, but they don't by themselves allow you to collect more than the ordinary limit. Build purchasing and delivery timing into your job plan.

A statutory exception can apply to certain qualifying bonded arrangements, but a standard contractor license bond alone doesn't authorize a larger advance.

Tie Progress Payment to Work

Your schedule must state amounts in dollars and cents. Each payment must connect to identified work or materials.

Beyond the permitted down payment, a contractor can't collect a progress payment for work not completed or materials not delivered.

Make Milestones Clear

Avoid payment triggers that say only "week two" or "when requested." Time passing doesn't establish that you've earned the payment.

Describe the completed phase or delivered materials that support each invoice. Your field records, delivery receipts, and invoices should support the same milestone.

Ordering materials isn't the same as delivering them. A supplier's demand for advance payment doesn't change the homeowner's billing restrictions.

Build a Workable Schedule

For a $20,000 contract price, the payment amounts must total $20,000, including the deposit. This example is illustrative, not universally compliant:

1. Collect a $1,000 down payment after execution.
2. Invoice $5,000 after the defined demolition and rough-in phase is completed.
3. Collect $10,000 after the specified materials are delivered and the installation milestone is completed.
4. Invoice the remaining $4,000 after the defined final work is completed.

These amounts are appropriate only if completed work and delivered materials support each charge. Adjust the milestones and amounts to the actual job value.

A neat schedule can't justify front-loaded billing.

Provide the Right Cancellation Notice

Cancellation rights affect when you schedule work and how you handle a homeowner's withdrawal. The applicable right to cancel depends on the contract and circumstances, so include the correct notice and cancellation documents with the agreement.

Don't rely on a verbal explanation.

Ordinary and Senior Buyers

In California, the usual cancellation period is three business days. A buyer who is 65 or older generally receives five business days.

The period starts when the buyer receives a copy of the contract, signed and dated, with the required cancellation notice. An incomplete notice can create a dispute about whether the cancellation period started.

Collect the information needed to provide the correct notice during your contract process. Guessing the buyer's age can leave you using the wrong form.

Keep records showing which notice you supplied and when you delivered the executed agreement.

Disaster Repairs and Exceptions

Qualifying repair or restoration contracts after a declared emergency carry a seven-business-day cancellation period. These periods aren't added together.

The longer period applies only when the statutory disaster-related conditions are met. It doesn't apply to every project described as urgent.

Certain contract types and limited exceptions follow different rules. The CSLB cancellation warnings and exceptions explain why an ordinary remodel and a qualifying disaster repair agreement can have different deadlines.

A request to start quickly doesn't automatically remove cancellation rights. Plan your start date around the applicable contract requirements.

Sign a Change Order Before Work

Get written approval first. A compliant change order must be written and signed before the contractor begins the changed work.

The change order should state the revised scope and price, plus any effects on the schedule or progress payments.

A fixture change can affect material costs, labor, delivery timing, and the order of other trades. Include those effects in the change order, and agree on the price before installation.

For hidden damage, document the condition and additional work, then obtain a signed change order before proceeding.

The CSLB Contracting for Success guide covers written agreements and changes as part of proper contract administration.

Keep each approved change with the original contract. Update the remaining payment schedule when future invoices are affected.

A text message or conversation can document a request, but it shouldn't replace a signed document covering scope, price, and timing.

Add the 2026 Subcontractor Disclosure

SB 517 took effect January 1, 2026. It adds a disclosure about who will perform work under a home improvement contract.

Older forms may not include this disclosure.

State Whether You'll Use a Subcontractor

The contract must state whether you'll use a subcontractor. This yes-or-no disclosure applies even if the subcontractor handles only a small part of the project.

If you plan to use one, the agreement must say that a list is available upon request.

A licensed plumber or electrician hired for part of the job still counts as a subcontractor.

Build this question into contract preparation, not as an optional attachment. Your office and field team should use the same answer.

Provide the Requested List

When requested, provide the subcontractor's name, contact information, CSLB license number, and license classification.

Keep those details organized before the homeowner asks. A company name alone isn't enough.

As the direct contractor, you're still responsible for the agreement. Subcontracting part of the work doesn't excuse your contract obligations.

Keep the subcontractor information in the project file. This helps you answer the homeowner accurately and document which businesses performed the work.

Include Lien and Insurance Disclosures

Required notices help homeowners understand risks that aren't clear from the scope or price. Your contract needs the required mechanics lien warning and an accurate commercial general liability disclosure.

Explain Mechanics-Lien Risk

A mechanics lien is a claim against property for unpaid qualifying construction work or materials.

The warning matters because paying you doesn't necessarily prevent an unpaid subcontractor or supplier from asserting lien rights.

Use the prescribed statutory warning in your contract. A short custom explanation isn't a replacement for California's required language.

Keep subcontractor and supplier payments organized alongside homeowner invoices. Proper lien releases also matter when documenting payments.

A contractor license bond is a separate requirement. The California Contractors State License Board lists the standard bond amount as $25,000, effective January 1, 2023. Our California contractor license bond requirements explain that obligation.

Disclose Liability Coverage Accurately

Your commercial general liability disclosure must match your actual coverage status. Don't leave a default statement in the form because it was there last year.

General liability insurance can protect against covered third-party injury and property-damage claims, depending on the policy. It doesn't replace required contract notices or make unlawful billing acceptable.

Our guide to California contractor general liability insurance explains the coverage separately from contract compliance.

We help contractors get bonds and insurance in place, with same-day filing or certificate delivery available for many policies. Your agreement still needs its own complete, accurate disclosures.

Handle Cost-Plus Contracts Carefully

Open-ended pricing creates compliance risk. Ordinary home improvement agreements require a total contract price and a defined progress-payment schedule.

A price described only as actual cost plus a markup may leave those requirements unresolved. An hourly labor rate alone can raise the same concern.

Smith Currie's analysis of home remodel contracts takes the position that cost-plus and time-and-materials arrangements conflict with California's home improvement requirements. Its analysis describes the CSLB's restrictive position, though interpretations of these arrangements are disputed.

Bay Legal takes a broader view and describes uncertainty around these arrangements. That disagreement doesn't make a cost-plus remodel contract a low-risk choice.

There is also a separate statutory category. Section 7159.10's service-and-repair provisions expressly address estimated time-and-materials pricing.

That provision applies within its own contract category and conditions. It doesn't automatically authorize time-and-materials pricing for every renovation.

For an ordinary remodel, a defined price with written change orders provides a clearer compliance path. Approximate start and completion dates and an earned-payment schedule still belong in the agreement.

If you need cost-plus or time-and-materials terms, have qualified California construction counsel structure the agreement for the actual project type.

Understand Contract Violation Risks

In California, contract defects can lead to CSLB discipline, cancellation disputes, delayed payments, and costly arguments about what the homeowner approved.

Consequences depend on the violation. A missing disclosure and an unlawful payment demand may be treated differently.

Certain violations under Business and Professions Code section 7159.5 can carry misdemeanor penalties, including fines, county jail time, or both.

Those penalties don't apply automatically to every drafting mistake.

A complaint can require a contractor to produce the agreement, notices, invoices, and approved changes. As a sound practice, keep these records together rather than reconstructing the job after a dispute.

Contract compliance and insurance protection are separate responsibilities. Buying coverage doesn't correct an excessive deposit or replace a missing cancellation notice.

Use one approved contract process across your sales and field teams. A compliant office form offers little protection if a contractor changes payment terms at the kitchen table or starts extra work before approval.

Frequently Asked Questions

Can I Use a Proposal as the Contract?

Yes, if it contains all required terms, notices, and signatures for a home improvement contract. The document's title doesn't excuse missing provisions.

A basic estimate with a total price and acceptance line usually needs more information to meet the requirements.

Can I Collect for Materials Before Delivery?

Under the ordinary progress-payment rule, no. Apart from the permitted down payment, you can't collect for materials before delivery.

Keep supplier purchasing obligations separate from your payment rights. Ordering a product doesn't make the charge an earned progress payment.

Does Hiring Subcontractors Reduce My Responsibility?

No. You remain responsible for your direct contract obligations.

The 2026 disclosure tells the homeowner whether you'll use a subcontractor and provides identifying information upon request. It doesn't transfer your responsibility for contract compliance.

Get the Paperwork Ready First

A complete home improvement contract helps you define the job, collect earned payments, and document changes. Use it before work starts, then keep the signed agreement, notices, and change orders together.

For help arranging contractor bonds or coverage, Get quote today. Our team can handle the coverage process while you keep your project paperwork organized.