California · Remodeling licensing · official-source guide
California licenses remodeling statewide through the Contractors State License Board. Remodelers work under the B-2 Residential Remodeling classification, the B General Building classification, or a C specialty license. CSLB requires a license once a project needs a permit, uses extra workers, or reaches $1,000 in labor and materials, and requires a $25,000 bond.
Verified against agency sources on 2026-10-05. Rules and fees change; confirm with the named authority before relying on this guide.
Remodeling in California is licensed by the state, not by individual cities. The Contractors State License Board, part of the Department of Consumer Affairs, issues every contractor license used for residential remodeling work. There is no separate county or municipal contractor license that replaces it. CSLB sets the threshold low. A business or individual who constructs or alters any building in California must hold a CSLB license if the project requires a building permit, if any additional workers are used, or if the total cost of labor and materials on one or more contracts for the project is $1,000 or more. CSLB states plainly that a larger project may not be split into smaller amounts under $1,000 to fit inside that exemption. Contractors, subcontractors, specialty contractors and anyone in the business of home improvement must be licensed before submitting bids. That last point matters for a remodeler chasing leads. The license has to be in hand before the estimate goes out, not before the first check clears. Licenses are issued to individuals, partnerships, corporations, joint ventures and limited liability companies, so the entity you market under has to be the entity on the license. Owner-builders who improve their own property using their own wage-paid employees are exempt, as are employees paid wages who do not run an independent business. Those exemptions describe homeowners and crews, not remodeling companies taking contracts from the public.
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California created a classification aimed squarely at remodelers. Business and Professions Code section 7057.5 defines a residential remodeling contractor as one whose principal business is making improvements to, on, or in an existing residential wood frame structure, where the project requires at least three unrelated building trades or crafts for a single contract. CSLB cites the classification as B-2 Residential Remodeling Contractor. The statute lists trades a B-2 may take as a prime contract, including drywall, finish carpentry, flooring, insulation, painting, plastering, roof repair, siding and tiling. It also covers installing, repairing or replacing electrical fixtures such as dimmers, fans, lights, outlets and switches, plumbing fixtures such as faucets, sinks, toilets and tubs, and mechanical fixtures such as air filters, air delivery and return grills, and preassembled exhaust fans. The three-trade floor is a hard rule, not a guideline. A B-2 shall not take a contract unless that contract includes three or more unrelated trades or crafts. Within that limit the B-2 may self-perform the work or subcontract any of the trades to appropriately licensed subcontractors. The classification was added by Senate Bill 1189 and took effect January 1, 2021, which makes it newer than most of the license law around it. For a remodeler whose work is kitchens, baths and whole-house updates on wood frame houses, B-2 is the classification the legislature wrote for that exact business.
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Three routes exist and they are not interchangeable. Section 7057 defines the B General Building Contractor as a contractor whose principal business involves structures built for the support, shelter and enclosure of persons or property, requiring at least two unrelated building trades or crafts in construction. A B may take a prime contract or subcontract for framing or carpentry. A B may not take a prime contract for a project involving other trades unless the prime contract requires at least two unrelated trades other than framing or carpentry, or unless the contractor holds the right classification or subcontracts the work to an appropriately licensed specialty contractor. The B-2 route under section 7057.5 requires three unrelated trades per contract and is limited to improvements to existing residential wood frame structures. The C specialty classifications cover single trades, and CSLB lists them individually. A remodeler who regularly sells single-trade jobs, such as roofing only or flooring only, cannot rely on B-2, because a B-2 contract must carry three or more unrelated trades. A remodeler who builds additions involving structural work needs the B or the relevant specialty license, since B-2 is barred from structural changes. The practical test is the shape of your contracts. Count the unrelated trades on a typical signed job. If it is consistently three or more and the house already exists and is wood frame, B-2 fits. If jobs vary, carrying B, or B plus specialty classifications, keeps more work legal.
The limits on B-2 are written into section 7057.5 and a remodeler needs them memorized before quoting. A B-2 shall not contract for a project that includes C-16 Fire Protection, C-22 Asbestos Abatement, or C-57 Well Drilling work unless the contractor holds that classification or subcontracts with an appropriately licensed contractor. A B-2 shall not contract to make structural changes to load bearing portions of an existing structure, including footings, foundations, load bearing walls, partitions and roof structures. That single sentence rules out a large share of addition and open-concept work, because removing a bearing wall is structural. A B-2 also shall not contract to install, replace, substantially alter or extend electrical, mechanical or plumbing systems, their component parts, or the mechanisms and devices that are part of those systems, unless the contractor holds the appropriate classification or subcontracts with an appropriately licensed contractor. The statute does allow minor alterations to existing electrical, mechanical and plumbing systems where the point is installing, repairing or replacing fixtures, provided the contract still requires at least three unrelated trades. The board may adopt regulations further defining what counts as a minor alteration. Read together, B-2 is a finishes and fixtures classification with a subcontracting path for everything heavier. A remodeler who intends to sell whole-house renovations with structural and system work either adds classifications or lines up licensed subcontractors in writing before the contract is signed. Selling outside the classification is grounds for discipline, and CSLB holds the prime contractor responsible for the project.
CSLB requires at least four years of experience in the classification applied for in order to qualify for the examination. Credit is given only for experience at a fully qualified working level, or as a foreman, supervising employee, contractor or owner-builder. CSLB defines a fully qualified worker as someone who can perform the trade without supervision, as opposed to a trainee, helper, laborer, assistant or apprentice, or someone who has completed an apprenticeship program. A foreman or supervising employee has those same skills and directly supervises physical construction. A contractor, for credit purposes, includes a current or former licensed California contractor, personnel of record on a California license, or an out-of-state contractor. CSLB states that no education requirement exists for a contractor license. Education still helps on the clock. An applicant may receive credit of up to three years for technical training, apprenticeship training or education toward the four years required, and at least one of the four years must be practical experience. Written documentation of any training or education claimed in place of experience is required, and CSLB asks the educational institution to submit records directly. Experience statements are verified by a qualified and responsible person, and section 7068 requires the registrar to randomly review a percentage of those statements for veracity. The registrar also reviews experience gained in other states to confirm it was gained lawfully there. CSLB warns that failure to provide requested documentation results in the application being returned or voided, or the license denied, so collect the proof before filing.
CSLB states that as a condition of licensure an applicant must take and pass two examinations: a law and business examination and a trade examination. The only exception CSLB names is the C-61 Limited Specialty classification, which has no trade examination. A remodeler applying for B-2 therefore sits both. Under certain conditions CSLB may grant a waiver of one or both examinations, and the final determination of whether an applicant meets the examination requirements or the waiver criteria is made during application review, not before. Section 7068 frames what the examinations are for. The board must require an applicant to show the degree of knowledge and experience in the classification applied for, plus general knowledge of the building, safety, health and lien laws of the state and of the administrative principles of the contracting business. Qualification runs through a person, not a company. An individual qualifies personally or through a responsible managing employee holding the same classification. A partnership qualifies through a general partner or responsible managing employee, a corporation through a responsible managing officer or employee, and a limited liability company through a responsible managing officer, manager, member or employee. A responsible managing employee must be permanently employed by the applicant and actively engaged, which section 7068 defines as working 32 hours per week or 80 percent of the hours the business operates, whichever is less. After passing, CSLB requires the Asbestos Open Book Examination and a signed verification form, and states it cannot process the license without that form. CSLB publishes examination study guides.
CSLB publishes a single list of all its fees, and the figures below come from that list. The original application fee, covering examination or waiver for one classification, is $450. The initial license fee is $200 for a sole owner and $350 for a non-sole owner, so a sole owner reaching an active license pays $450 plus $200 in board fees. An additional classification requested with a waiver or joint venture application for an original license costs $150 each, while adding an additional classification to an existing license costs $230. Replacing the qualifier on an existing license is $230. Adding new personnel to an existing corporation or limited liability company is $125, and adding a new limited partner to a partnership is $125. A license reactivation application is $450 for a sole owner and $700 for a non-sole owner. A joint venture application for one classification totals $800, combining application and initial license fees. Home Improvement Salesperson registration costs $200. Asbestos certification and hazardous substance removal certification applications are $125 each. Fingerprinting adds separate costs paid outside CSLB: a Department of Justice processing fee of $32 and a Federal Bureau of Investigation processing fee of $17, plus a rolling fee set by each Live Scan site, which CSLB does not set. CSLB ties the applicable fee to the postmark date or the date the application is hand-delivered to its Sacramento headquarters, so a fee change turns on when you mail, not when staff open the envelope.
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Section 7071.6 requires a contractor's bond of $25,000 as a condition of issuing, reinstating, reactivating, renewing or continuing a license. The bond is not a pot of money matched to job size. Excluding claims by the beneficiaries named in section 7071.5, the aggregate liability of the surety on claims against the bond may not exceed $7,500, and bond proceeds above $7,500 are reserved exclusively for those named beneficiaries. A remodeler should understand that number before using the bond as a selling point, because the homeowner-facing figure and the headline figure are not the same. Workers compensation is handled separately. CSLB states that California law requires employers, including those in construction, to carry workers compensation insurance even with only one employee. Licensees holding an active license, licensees reactivating an inactive license, and applicants for an active license must either file a valid Certificate of Workers' Compensation Insurance or a valid Certification of Self-Insurance from the Department of Industrial Relations, or file a signed exemption certifying they have no employees at that time. Under section 7125.6 licensees must also list up to the top three workers compensation classification codes carrying the highest estimated payroll on the policy, and CSLB notes it does not verify or investigate the accuracy of those codes. CSLB names five classifications that must carry workers compensation whether or not they have employees: C-8 Concrete, C-20 Warm-Air Heating, Ventilating and Air-Conditioning, C-22 Asbestos Abatement, C-39 Roofing, and C-61/D-49 Tree Service. B-2 is not on that list, so the exemption route remains open to a remodeler with no employees.
California regulates remodeling contracts in unusual detail through Article 10 of the Contractors State License Law. Section 7151 defines home improvement as repairing, remodeling, altering, converting or modernizing of, or adding to, residential property, and includes driveways, swimming pools, terraces, patios, awnings, storm windows, solar energy systems, landscaping, fences, porches, garages, basements and other improvements to the structure or adjacent land. Section 7159 says a home improvement contract is an agreement between a contractor and an owner or tenant for that work where the aggregate contract price exceeds $500. Above that line the written requirements bite. Section 7159 requires the heading "Home Improvement" on the contract form in at least 10-point boldface type, and a statement in at least 12-point boldface type telling the buyer they are entitled to a completely filled in copy signed by both parties before any work may be started. The contract must carry the heading "Contract Price" followed by the amount in dollars and cents, and a "Finance Charge" heading if one applies. The first page must show the date the buyer signed and the name, address and email of the contractor. Before any work starts the contractor must give the buyer a signed and dated copy. A "Mechanics Lien Warning" with prescribed language is required, as is the consumer notice about CSLB set out in section 7030. Failure by a licensee, their agent or salesperson to provide the specified information, notices and disclosures, or to otherwise comply with section 7159, is cause for discipline.
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Section 7159.5 applies to all home improvement contracts between an owner or tenant and a contractor, general or specialty, licensed or subject to licensure. It sets the cash rules that catch remodelers more often than any other part of the license law. The contract must be in writing and must include the agreed contract amount in dollars and cents, covering the entire cost of the contract including profit, labor and materials but excluding finance charges. If a separate finance charge exists between the contractor and the buyer, it must be set out separately from the contract amount. If a down payment will be charged, that down payment shall not exceed $1,000 or 10 percent of the contract amount, whichever amount is less. On a large remodel that ceiling is $1,000, which is a fraction of what many contractors assume they can collect at signing. If the contract provides for payments before completion in addition to a down payment, it must include a schedule of payments in dollars and cents that specifically references the amount of work or services to be performed and any materials and equipment to be supplied. Except for the down payment, the contractor shall neither request nor accept payment that exceeds the value of the work performed or material delivered. Failure to comply with these provisions is cause for discipline. A remodeler who wants deposits larger than the statutory ceiling has to fund the gap another way, because the limit is set by the contract amount, not by the cost of materials ordered.
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Remodeling contracts in California carry a cancellation right the contractor must deliver in writing. Section 7159 requires a notice titled "Three-Day Right to Cancel," or titled "Five-Day Right to Cancel" for contracts with a senior citizen, to be provided to the buyer. The notice is not required where the contract was negotiated at the contractor's place of business, where a "Seven-Day Right to Cancel" applies instead, or where other named licensing acts apply. The five-day right to cancel for senior citizens applies to contracts entered into on or after January 1, 2021. The cancellation clock is tied to delivery of paperwork, not to the start of work. Section 7159 states that the buyer's receipt of the signed and dated copy of the contract initiates the buyer's rights to cancel under Civil Code sections 1689.5 to 1689.14. The statute sets out the cancellation form itself, including the line where the buyer writes the date and signs to cancel the transaction, and language letting the buyer mail or deliver a signed and dated copy of the cancellation notice, or any other written notice, to the seller's place of business no later than midnight of the stated date. If the applicable Notice of Cancellation is not included in or attached to the contract as required, the buyer may file a complaint with the Contractors State License Board. For a remodeler this is a document control problem. The signed contract copy, the correct cancellation notice, and the date the buyer signed all have to leave your hands together.
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California licenses the contractor and separately registers the person who sells the job. Section 7153 makes it a misdemeanor for any person to work as a salesperson for one or more home improvement contractors in California without holding, at the time of the sales transaction, a current and valid home improvement salesperson registration issued by the registrar. The same section makes it a misdemeanor to work as a salesperson of home improvement goods or services without that registration. If the registrar has probable cause to believe a salesperson is in violation, the registrar may issue a citation under section 7028.7. The commercial consequence is sharper than the criminal one. Section 7153 states that any security interest taken by a contractor to secure payment for conduct described in section 7151, occurring on or after January 1, 1995, is unenforceable if the person who solicited the act or contract was not a duly registered salesperson, or exempt from registration under section 7152, at the time the homeowner signed the home improvement contract. A remodeler who hires a commission closer without checking registration can end up holding paper that cannot be enforced. CSLB accepts Home Improvement Salesperson registration applications and lists the application fee as $200. Section 7159 also makes clear that discipline can reach the salesperson, stating that administrative discipline against the prime contractor does not preclude discipline against a subcontractor or home improvement salesperson on the same contract. CSLB's license lookup covers HIS registrations as well as contractor licenses.
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Section 7140 sets the renewal cycle. All licenses issued under the Contractors State License Law expire two years from the last day of the month in which the license was issued, or two years from the date the renewed license last expired. To renew an unexpired license the licensee must apply on a form prescribed by the registrar and pay the renewal fee before the license would otherwise expire, and renewal continues the license for the following two-year period. CSLB's published fee list prices active timely renewal at $450 for a sole owner and $700 for a non-sole owner, with C-10 contractors charged $470 and $720. Active delinquent renewal costs $675 for a sole owner and $1,050 for a non-sole owner. Inactive timely renewal is $300 for a sole owner. Timely means postmarked or received at CSLB on or before the expiration date, so the mail date is what counts. Section 7071.6 ties the bond to renewal directly, requiring the bond on file as a condition of continued maintenance of the license, which means a lapsed bond is a license problem rather than an insurance problem. On reciprocity, CSLB states that it makes equivalency determinations for similar Arizona, Louisiana and Nevada contractor license classifications, and publishes a reciprocity application path for those states. A contractor coming from anywhere else goes through the standard application. Section 7068 also requires the current qualifying individual to file a statement with the registrar at renewal verifying their capacity as qualifying individual.
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Section 7028 makes it a misdemeanor to engage in the business of, or act in the capacity of, a contractor in California while unlicensed, or to perform covered acts under a license suspended for failure to pay a civil penalty, failure to comply with an order of correction under section 7090.1, or failure to resolve outstanding final liabilities under section 7145.5. A first conviction is punishable by a fine not exceeding $5,000, imprisonment in a county jail not exceeding six months, or both. On a later conviction the court must impose a fine of 20 percent of the contract price, 20 percent of the aggregate payments made to or at the direction of the unlicensed person, or $5,000, whichever is greater. Advertising carries its own offense. Section 7027.1 makes it a misdemeanor to advertise for construction or work of improvement covered by the license law unless the advertiser holds a valid license in the classification advertised, with an allowance for a licensed building or engineering contractor to advertise as a general contractor. The section defines advertising broadly enough to cover a card, sign or device, a sign or marking on a building or structure, newspaper and magazine placements, airwave or any electronic transmission, and directory listings under a construction heading, with or without limiting qualifications. A violation draws a fine of not less than $700 and not more than $1,000, in addition to any other punishment. If the registrar has probable cause, a citation may issue under section 7028.7 or 7099.10.
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California tells licensed remodelers exactly where the license number has to appear. Section 7030.5 requires every person licensed under the Contractors State License Law to include the license number in all construction contracts, in subcontracts and calls for bid, and in all forms of advertising as prescribed by the registrar. A website, a vehicle wrap, a yard sign, a direct mail piece and a paid search ad are all forms of advertising, so the number belongs on each of them. Section 7029.6 is more specific about trucks. Except for contractors identified in section 7029.5, every licensed contractor must display, in or on each motor vehicle used in the construction business for which a commercial vehicle registration fee has been paid, the business name and contractor license number, in a clearly visible location, in print type of at least 72-point font or three-quarters of an inch in height and width. Section 7059.1 governs naming. A licensee shall not use any business name indicating the licensee is qualified to perform work in classifications other than those issued for that license, and shall not use a business name incompatible with the type of business entity licensed. A licensee shall not conduct business under more than one name per license. For a B-2 holder that bars marketing language implying general building or specialty classifications you do not hold. Section 7030 also requires prescribed CSLB notice language in contracts, in at least 10-point type for prime contracts and at least 12-point type for home improvement and service and repair contracts.
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CSLB runs a public lookup. Its Check A License service lets anyone look up a contractor license or Home Improvement Salesperson registration to verify information, including complaint disclosure, by license number or by business name. CSLB notes that a California contractor license number contains no alphabetic characters and does not exceed eight digits. Section 7030 requires home improvement contracts to tell the buyer that CSLB is the state consumer protection agency and that consumers may contact CSLB for information about disclosable complaints, disciplinary actions and civil judgments. CSLB can investigate complaints about a licensee for up to four years from the date of the act for a patent act or omission, and up to 10 years for a latent act or omission involving structural defects. CSLB also states that the purpose of its investigation is not to obtain restitution and that consumers whose primary goal is financial recovery should consider the courts. City requirements sit on top of the state license rather than replacing it. All individuals or entities conducting business activities within the City of Los Angeles must apply for and obtain a Business Tax Registration Certificate from the Office of Finance, and building work runs through Los Angeles Department of Building and Safety plan check and permits. San Diego requires a Business Tax Certificate, and the city names independent contractors among those covered. San Francisco generally requires every person engaging in business in the city to register within 30 days of starting, renew annually by the last day in February, and display the Business Registration Certificate conspicuously at the place of business.
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These are common details other guides publish about California, but we could not verify them from the agency source. Confirm them directly before relying on them.
Yes. The Contractors State License Board licenses contractors statewide, and cities do not issue a substitute contractor license. CSLB requires a license when a project needs a building permit, uses additional workers, or when labor and materials on one or more contracts for the project reach $1,000 or more.
B-2 is a classification for contractors whose main business is improving existing residential wood frame structures. Business and Professions Code section 7057.5 requires each B-2 contract to include at least three unrelated building trades or crafts. The contractor may self-perform or subcontract those trades to appropriately licensed contractors.
No. Section 7057.5 states a residential remodeling contractor shall not contract to make structural changes to load bearing portions of an existing structure, including footings, foundations, load bearing walls, partitions and roof structures. Work of that kind needs a different classification or an appropriately licensed subcontractor on the job.
CSLB requires at least four years of experience in the classification you apply for. Credit counts only for work at a fully qualified level, or as a foreman, supervising employee, contractor or owner-builder. Up to three of the four years may come from technical training, apprenticeship training or education, with one year practical.
CSLB lists the original application fee at $450 for examination or waiver in one classification. The initial license fee is $200 for a sole owner and $350 for a non-sole owner. Fingerprinting adds a $32 Department of Justice fee and a $17 Federal Bureau of Investigation fee, plus a Live Scan rolling fee.
Section 7071.6 requires a contractor's bond of $25,000 on file as a condition of issuing, reinstating, reactivating, renewing or maintaining the license. Excluding the beneficiaries named in section 7071.5, surety liability on claims against that bond is capped at $7,500, with proceeds above that reserved for the named beneficiaries.
Section 7159.5 caps the down payment on a home improvement contract at $1,000 or 10 percent of the contract amount, whichever is less. Any further payments before completion require a written schedule in dollars and cents, and no payment may exceed the value of work performed or material delivered.
Section 7159 requires a Three-Day Right to Cancel notice, or a Five-Day Right to Cancel notice for a senior citizen, on home improvement contracts, unless the contract was negotiated at your place of business, a Seven-Day Right to Cancel applies, or another named licensing act governs. Delivery of the signed contract starts the clock.
Yes. Section 7153 makes it a misdemeanor to sell home improvement work for a contractor without a current home improvement salesperson registration. A security interest taken to secure payment is unenforceable if the person who solicited the contract was not registered or exempt when the homeowner signed. CSLB lists the application fee at $200.
Section 7030.5 requires the license number in all construction contracts, subcontracts and calls for bid, and in all forms of advertising. Section 7029.6 requires your business name and license number on each commercially registered work vehicle, clearly visible, in print at least 72-point or three-quarters of an inch tall and wide.
Section 7027.1 makes advertising covered construction work without a valid license in that classification a misdemeanor, with a fine of not less than $700 and not more than $1,000 on top of other punishment. Section 7028 sets a first unlicensed contracting conviction at up to $5,000, six months jail, or both.
Section 7140 sets expiration two years from the last day of the month the license was issued, or two years from the last renewal expiration. CSLB prices active timely renewal at $450 for a sole owner and $700 for a non-sole owner, and active delinquent renewal at $675 and $1,050.
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