1. Verify the Contractor's California License

California requires contractors to hold a valid license issued by the Contractors State License Board (CSLB) for most construction, remodeling, and specialty trade work. Hiring an unlicensed contractor for work that requires a license can expose you to significant financial and legal risk — and may void your homeowners insurance coverage for related claims.

A license number alone is not enough. You need to verify:

• The license is currently active — not expired, suspended, or revoked.
• The license classification covers the work being performed. A B-General Building contractor can perform general remodeling. Specialty trades such as electrical (C-10), plumbing (C-36), and HVAC (C-20) require separate classifications.
• The name on the license matches the individual or entity you are contracting with. A business name alone is not sufficient — verify who actually holds the license.
• The license is not in a probationary or disciplinary status.

2. Ask Who Will Actually Perform the Work

Many remodeling contractors use subcontractors for some or all trades. This is common and not inherently a problem — but you should understand the arrangement before work begins.

• Will your employees or subcontractors perform the work?
• Which specific trades will be subcontracted — electrical, plumbing, tile, drywall, painting?
• Are subcontractors properly licensed for their trade?
• Who supervises subcontractors on your project?
• Who is accountable if a subcontractor's work is defective?
• Will subcontractors have access to your home when the general contractor is not present?

A general contractor who uses licensed, insured subcontractors and maintains active supervision is not a concern. A contractor who cannot identify their subcontractors or cannot confirm their licensing status warrants additional scrutiny.

3. Verify Insurance

Two types of insurance are particularly important for remodeling projects:

Workers' Compensation Insurance

If a worker is injured on your property and the contractor does not carry workers' compensation insurance, you may face significant liability. California requires contractors with employees to carry workers' compensation. Request a current certificate of insurance and verify the policy is active.

Commercial General Liability Insurance

This covers property damage and bodily injury caused by the contractor's operations. Request a certificate of insurance showing adequate coverage limits. Ask whether your homeowners insurance covers contractor-caused damage — many policies have exclusions.

4. Understand the Contractor Bond

California requires licensed contractors to maintain a contractor's bond. The bond is not insurance — it is a financial guarantee that provides limited protection if the contractor fails to complete work or causes certain damages. The bond amount required by California law is relatively modest and may not cover the full cost of a significant remodeling project.

The CSLB license check will show whether the contractor's bond is current. For more information on what the bond covers and its limitations, review the CSLB's consumer resources at cslb.ca.gov.

5. Understand Mechanics Liens

This is one of the most important topics for homeowners to understand before a remodeling project begins — and one of the least discussed.

What is a mechanics lien?

A mechanics lien is a legal claim that can be recorded against your property by contractors, subcontractors, laborers, or material suppliers who provided work or materials for your project and were not paid. A lien can cloud your title, complicate a sale or refinance, and in some cases lead to foreclosure proceedings.

Why does this matter even if you pay your contractor?

If your general contractor does not pay their subcontractors or material suppliers, those parties may have the right to lien your property — even though you paid the general contractor in full. Your payment to the general contractor does not automatically protect you from liens by parties further down the payment chain.

Preliminary Notices

Subcontractors and suppliers who want to preserve their lien rights must typically send a preliminary notice (also called a 20-day preliminary notice) within 20 days of first providing labor or materials. Receiving a preliminary notice is not a warning sign — it is a standard protective step. It does tell you who has potential lien rights on your project.

Conditional and Unconditional Lien Releases

At each payment milestone, request conditional lien releases from your general contractor and any parties who sent preliminary notices. A conditional release becomes effective upon receipt of the specified payment. After payment clears, obtain unconditional releases. California Civil Code provides statutory forms for both types.

6. Get a Detailed Written Scope of Work

A proposal that reads "Kitchen Remodel — $80,000" is not a contract. Before signing, the written scope should identify, where applicable:

• Demolition — what is being removed and how debris is disposed of
• Cabinetry — manufacturer, product line, door style, finish, and hardware
• Countertops — material, brand, color, edge profile, and thickness
• Backsplash — material, manufacturer, size, and installation pattern
• Flooring — material, manufacturer, product line, color, and installation method
• Plumbing — fixtures specified by manufacturer and model number
• Electrical — panel work, outlets, switches, and lighting specified
• Lighting — fixtures specified by manufacturer and model
• Drywall — scope of repair or replacement
• Painting — areas, number of coats, and paint brand/sheen
• Appliances — whether supplied by contractor or owner, and installation responsibility
• Permits — which permits are required and who obtains them
• Inspections — who schedules and attends
• Cleanup — daily cleanup expectations and final cleanup
• Exclusions — what is explicitly not included

7. Ask What Is NOT Included

Exclusions are as important as inclusions. Common areas where homeowners discover unexpected costs include:

• Appliance purchase (contractor installs but owner supplies)
• Permit fees (listed separately from labor and materials)
• Concealed conditions — rot, mold, or structural issues discovered during demolition
• Electrical panel upgrades required to support new appliances
• Plumbing rerouting required by layout changes
• Window or door modifications
• Painting of adjacent rooms affected by construction
• Furniture moving and storage
• Temporary kitchen or bathroom facilities during construction

Ask your contractor to walk through the scope and explicitly identify what is not included. Get the exclusions in writing.

8. Verify Product Specifications

Vague material descriptions leave room for substitution. Before signing, push for specifics on every significant material:

If a contractor cannot or will not specify materials at this level of detail, that is worth understanding before you sign.

9. Understand Change Orders

Change orders are written amendments to the original contract scope. They should be used whenever:

• You request a modification to the original scope
• Concealed conditions are discovered that require additional work
• A specified material is unavailable and a substitution is proposed
• The contractor identifies additional work required to complete the project properly

Every change order should include: a description of the change, the price impact (additional cost or credit), the schedule impact, and your written approval before work begins. Verbal agreements about changes are difficult to enforce and frequently lead to disputes.

10. Understand California Payment Rules

California law regulates home improvement contracts, including payment terms. Key points to understand:

• The down payment for home improvement contracts is limited to 10% of the contract price or $1,000, whichever is less — verify current requirements at cslb.ca.gov.
• Progress payments should be tied to completed work milestones, not arbitrary calendar dates.
• Avoid paying significantly ahead of completed work — it reduces your leverage if problems arise.
• Keep records of all payments: check numbers, dates, and amounts.
• Obtain lien releases at each payment milestone.

11. Ask About Permits

Not every remodeling project requires permits, but many do. Questions to ask:

• Does my specific project require permits under the applicable local building code?
• Who obtains the permits — contractor or owner?
• Whose name appears on the permit?
• Who schedules required inspections?
• How is final inspection approval documented?
• What happens if additional work is discovered during inspections?

Work that typically requires permits includes structural modifications, electrical panel work, new circuits, plumbing modifications, HVAC changes, room additions, and window or door changes affecting the building envelope. Cosmetic work such as painting, flooring replacement, and cabinet hardware generally does not.

If a contractor tells you permits are not required for work that typically requires them, verify independently with your local building department before proceeding. Unpermitted work can create complications when selling your home and may not be covered by homeowners insurance.

12. Ask About Material Lead Times Before Demolition

One of the most avoidable sources of project delays is demolishing a kitchen or bathroom before critical materials are confirmed and available. Lead times for custom and semi-custom cabinets can range from several weeks to several months. Specialty flooring, custom countertops, and certain plumbing fixtures may also have significant lead times.

Before demolition begins, confirm:

• Cabinets are ordered, confirmed, and have a delivery date
• Countertop template cannot be taken until cabinets are installed — understand this dependency
• Appliances are ordered and have a confirmed delivery date
• Specialty flooring is ordered and available
• Plumbing fixtures are confirmed available
• Any custom or special-order items have confirmed lead times

13. Ask About the Construction Schedule

Realistic scheduling is one of the most important conversations to have before signing. Questions to ask:

• What is the projected start date?
• What is the estimated completion date, and what assumptions does it depend on?
• How many working days is the project expected to take?
• What are the working hours on your property?
• How are inspection delays handled?
• What happens if materials are delayed?
• How are owner-requested changes reflected in the schedule?
• What happens if concealed conditions are discovered?

A contractor who provides a specific completion date without acknowledging any of these dependencies may be telling you what you want to hear rather than what is realistic.

14. Ask About Site Protection

Remodeling creates dust, debris, and disruption. Before work begins, understand:

• How will dust be contained — plastic barriers, negative air pressure, HEPA filtration?
• How will existing flooring be protected in work paths?
• How will furniture and belongings in adjacent areas be protected?
• What are the daily cleanup expectations?
• How will debris be removed — dumpster, haul-away, or other method?
• Are there pets or children in the home whose safety needs to be considered?
• Which areas of the home will be accessible to workers?

15. Ask How Problems Are Documented

Construction projects encounter unexpected conditions. The question is not whether problems will arise, but how they will be handled when they do. A professional contractor should:

• Photograph conditions before, during, and after work
• Document concealed conditions in writing before proceeding with additional work
• Use written change orders for all scope modifications
• Maintain a project log or communication record
• Provide inspection documentation when permits are involved

16. Red Flags to Watch For

The following patterns warrant additional investigation before signing:

• Unwillingness to provide a license number for verification
• Pressure for a large upfront payment before work begins
• Vague contracts without material specifications or detailed scope
• Cash-only payment demands
• Reluctance to document changes in writing
• Discouraging permits for work that typically requires them
• Inability to specify materials by manufacturer and product line
• Completion promises that seem unrealistically fast
• Unwillingness to discuss subcontractors or their licensing
• High-pressure tactics to sign immediately
• Inability to provide certificates of insurance
• No physical business address
• Significantly lower bid than all other contractors without a clear explanation

17. Final Completion Checklist

Before making your final payment, confirm:

25 Questions to Ask a Remodeling Contractor Before Signing