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Choosing a safer general contractor for a home renovation means verifying the business, insurance, contract and payment plan before any money moves. Get several written bids, check the contractor’s license and complaint history yourself, confirm insurance with the carrier, and make every promise and change order part of a signed contract. The lowest bid is not automatically the safest choice.
This guide uses the Federal Trade Commission’s national consumer guidance and California’s current rules as a detailed example. Licensing, deposit limits, cancellation rights and lien procedures differ elsewhere, so confirm your own state and local requirements before signing.
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A general contractor manages a multi-trade renovation: hiring and supervising subcontractors, obtaining building permits, scheduling inspections and coordinating the work. A specialty contractor installs a particular product or system, such as cabinets or bathroom fixtures. An architect designs homes, additions and major structural work; a designer or design-build contractor may provide both design and construction.
For a renovation involving several trades, the person signing your prime contract should be responsible for the whole project. Ask whether subcontractors will be used, identify them where possible, and verify each subcontractor’s required license and insurance. A trade-association membership can help you find candidates, but it is not a substitute for a license check. The FTC points homeowners to the National Association of Home Builders, National Association of the Remodeling Industry and the American Institute of Architects finder as directories.
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How do I find credible contractors?
Start with recent, comparable work rather than advertising. Ask friends, neighbors and co-workers who completed similar projects to show you the finished work and describe communication, delays, cleanup and unexpected costs. Read ratings on sources you already trust, and search the business name with terms such as “scam,” “rip-off” and “complaint.” Prefer an established business whose legal name, address and work history can be checked.
Before making calls, write a short project brief: rooms, intended work, preferred materials, approximate budget and any date constraints. A vague request such as “remodel the kitchen” makes it difficult to compare bids and invites change orders.
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How do I verify a contractor’s license?
Verify the license yourself with the state or local licensing authority wherever licensing is required. Match the legal business name, license number, classification and status to the name on the proposed contract. Read complaint and discipline information, not just the word “active.” The FTC notes that licensing can range from simple registration to a detailed qualification process, and that many—but not all—states require licensing or bonding.
California illustrates why the details matter. A license is generally required when labor and materials total $1,000 or more, when the job requires a building permit, or when additional workers are used, regardless of price, according to the CSLB information compiled by ContractorSearch. Home-improvement work over $500 requires a written contract, and changes must be written. Confirm the current rule with the California Contractors State License Board (CSLB).
Use the official California search by license number, business name or person. Compare the pocket license and a photo ID with the person you meet. A home-improvement salesperson registration ends in “SP.” If a search produces no result, do not assume that proves the person is unlicensed; call CSLB at 800-321-2752 and ask for help.
For a multi-trade renovation, check that the classification fits the work. California’s Class B general building classification is intended for the broad building work discussed in the state materials; a specialty trade needs its corresponding specialty classification. An active license with the wrong classification is not the same protection as a properly classified contractor.
Does a license mean the contractor is insured?
No. A license, a license bond and insurance solve different problems. Ask for current certificates and call the insurer using the phone number on the certificate or statutory notice. The FTC specifically recommends checking personal liability, workers’ compensation and property-damage coverage because a homeowner could otherwise face claims for injuries or damage during the project.
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California contracts must disclose the contractor’s commercial general liability (CGL) status. A lawful notice may say the contractor carries CGL with a named insurer and provide a verification number, is self-insured, or does not carry CGL at all. Read the notice and make sure it matches what the contractor told you. A contractor’s no-employee workers’ compensation exemption does not establish that every subcontractor is exempt; ask about each subcontractor.
California does not make general liability insurance a universal license requirement. Certain classifications—including concrete, HVAC, asbestos abatement, roofing and tree service—must carry workers’ compensation or a certification of self-insurance even without employees, according to the CSLB guidance summarized by ContractorSearch. Requirements differ by state and trade.
California’s standard contractor license bond is reported as $25,000 by two November 2026 sources, but that bond is not liability insurance and is not a project-specific performance-and-payment bond. Read the amount and status on the live license record. If a large or complex project needs completion and payment protection, ask specifically about a project performance-and-payment bond or qualifying joint-control arrangement; do not treat the license bond as a substitute.
How many bids should I get, and what should I compare?
Obtain written estimates from several qualified firms—at least three is a practical minimum, with about five enough to reveal patterns without creating an unmanageable process. The FTC says not to choose automatically by price; ask a contractor to explain a large difference.
Give every bidder the same project brief, drawings and material assumptions. Compare line items rather than totals:
- demolition, structural work, rough-ins, installation and finishing;
- material brands, model numbers, sizes, colors and allowances;
- permit, inspection, engineering and disposal costs;
- what is expressly excluded, including owner-supplied materials;
- start and estimated completion dates;
- the payment schedule and conditions for each payment; and
- the process and pricing for changes.
A short schedule or much lower price may indicate omitted work, cheaper materials or an unrealistic labor plan. Ask what the bidder has excluded before rejecting a higher, more complete proposal. Never rely on a one-line estimate such as “remodel bathroom — $25,000.”
What references should I request?
Ask for at least three clients with similar projects, including names, addresses and phone numbers. Ask whether the job finished on time, whether the final cost changed, how the contractor handled problems, whether workers appeared as scheduled and whether the site was cleaned. Visit completed work when the owner agrees, and ask whether the contractor used subcontractors.
Recent references are more useful than a long list of old testimonials. You can also ask to see a job in progress to evaluate organization and site safety, but obtain permission and do not interfere with the work.
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What must a safer renovation contract contain?
Insist on a legible written contract signed and dated by all parties, even where state law does not require one. Keep the copy you receive before work starts. The FTC’s contractor guide recommends including:
- the contractor’s legal name, address, phone number and license number;
- estimated start and completion dates;
- a payment schedule for the contractor, subcontractors and suppliers;
- the contractor’s obligation to obtain required permits;
- a detailed scope, materials list, allowances and exclusions;
- warranties for materials and workmanship, who honors them, duration and limits;
- cleanup, debris removal, spills and stains (often called a broom clause);
- how written change orders affect price and schedule; and
- every material promise made in meetings or calls.
California’s CSLB guide gives a useful specificity test: “Install oak kitchen cabinets, manufactured by Company XYZ, model 01381A, as per the plan” is meaningful; “Install kitchen cabinets” is not. State the work you will perform yourself, if any.
California Business and Professions Code section 7159 requires additional headings and notices, including the contract price in dollars and cents, a separate finance-charge heading, a description of significant materials and equipment, a progress-payment schedule, approximate start and completion dates, insurance disclosures, a mechanics-lien warning, CSLB information and a cancellation notice near the owner’s signature. Read the current text at section 7159.
How should change orders work?
Do not approve “while we’re here” work verbally. A change order should be written and signed before the changed work begins, identifying the added or deducted amount, the exact scope and the effect on the payment schedule and completion date.
California contracts must include this rule: “Extra Work and Change Orders become part of the contract once the order is prepared in writing and signed by the parties prior to the commencement of work covered by the new change order.” A contractor may have legal remedies for unjust enrichment, but that possibility is not a reason to authorize undefined extras. Require a revised total and schedule every time.
How much should I pay up front?
Use the smallest deposit that local law permits, then tie later payments to completed, observable stages of work or materials actually delivered. The FTC says not to pay cash, to limit the down payment and to make progress payments contingent on defined completion. Do not accept a calendar-only schedule that pays ahead of the work.
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There is no single safe national percentage. A percentage described as common in one state may be illegal in another. Ask your state or local consumer agency for its cap before signing.
California’s ordinary covered home-improvement rule is unusually specific: the down payment may not exceed $1,000 or 10 percent of the contract amount, whichever is less, excluding finance charges. Section 7159 requires the contract to print: “THE DOWNPAYMENT MAY NOT EXCEED $1,000 OR 10 PERCENT OF THE CONTRACT PRICE, WHICHEVER IS LESS.” It also warns: “IT IS AGAINST THE LAW FOR A CONTRACTOR TO COLLECT PAYMENT FOR WORK NOT YET COMPLETED, OR FOR MATERIALS NOT YET DELIVERED. HOWEVER, A CONTRACTOR MAY REQUIRE A DOWNPAYMENT.”
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| California contract amount | Ordinary maximum down payment |
|---|---|
| $5,000 | $500 |
| $6,000 | $600 |
| $15,000 | $1,000 |
| $50,000 | $1,000 |
| $150,000 | $1,000 |
Prices checked November 2026.
Some California arrangements involving a qualifying performance-and-payment bond, lien-and-completion bond, registrar-approved equivalent or joint control can change specified payment restrictions. Do not assume an exemption exists because a contractor mentions a bond; read the contract and the current statute or CSLB guidance.
Who obtains permits and manages inspections?
For a normal renovation, the general contractor should identify required permits, obtain them before starting and schedule inspections. Ask in writing which permits are needed, who pays the fees and who will attend inspections. A request that you pull the contractor’s permits is a serious warning sign because it can shift responsibility and obscure who is accountable for code compliance.
Permits may be required for seemingly simple work, including decks, depending on local rules. Call the building department yourself if the contractor’s answer is vague.
How do mechanics liens affect the final payment?
Unpaid subcontractors, suppliers and laborers may be able to place a mechanics lien on your property even after you paid the general contractor. The California statutory warning explains that a lien is recorded like a mortgage or home-equity claim and can lead to a foreclosure action, double payment or damage to credit.
Ask the contractor who is working on the project and request a list of subcontractors and suppliers. California’s warning notes that a subcontractor or supplier can send a preliminary notice up to 20 days after starting work or supplying materials. Keep those notices and match them to invoices. Where appropriate, a joint check payable to the contractor and the noticed subcontractor or supplier can reduce risk.
Before releasing final funds, request lien releases or waivers for the work paid for. California references conditional and unconditional progress and final releases (Civil Code sections 8132, 8134, 8136 and 8138). Do not accept an unconditional release before the covered payment has actually been received by the claimant. Nationally, the FTC’s practical rule is the same: do not make the final payment or sign an affidavit of final release until you are satisfied and have proof that subcontractors and suppliers were paid.
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For the national baseline, the FTC says a contract signed at home or somewhere other than the seller’s permanent place of business generally carries a three-business-day cancellation right. Read the contract’s notice rather than assuming the rule applies to every transaction; exceptions exist.
California’s current section 7159 notice allows written cancellation by email, mail, fax or delivery to the contractor’s business by midnight of the third business day after receiving a signed, dated copy containing the notice. For a senior citizen, the notice changes the period to five business days. California also has a separate seven-day right for certain contracts to repair or restore residential property damaged by a declared disaster or sudden catastrophic event. Contracts negotiated at the contractor’s place of business and certain emergency or alarm contracts follow different rules. The contract should show the cancellation address, email address, signing date and help phone number, and provide the required detachable cancellation copies.
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If cancellation requires a refund, the California notice says money is generally due within 10 days after receipt of the cancellation notice; goods delivered to the home must be made available for pickup during the stated period. Confirm the exact statutory exception before relying on a cancellation window.
What are the biggest red flags?
Investigate or walk away when a contractor:
- pressures you to decide immediately, offers a today-only discount or arrives uninvited with a leftover-materials story;
- demands cash, payment to an individual, or the entire price before work;
- cannot produce a verifiable license, current insurance evidence or matching business identity;
- offers a vague scope, refuses written change orders or omits material specifications;
- asks you to obtain permits or buy materials without explaining the arrangement;
- presents a bid far below comparable, line-item proposals without a credible explanation;
- refuses to identify subcontractors or discuss lien releases;
- offers a “lifetime” guarantee or says the job is a demonstration; or
- arranges financing that you have not comparison-shopped, presents blank papers or asks you to deed your home.
Never sign an unfinished document or leave blank spaces to be completed later. Do not accept a home-equity loan with unaffordable payments, and do not let a contractor rush you into a lender’s terms. A financing offer is not a substitute for checking the contractor.
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Keep the signed contract, every change order, estimate, invoice, permit, inspection record, insurance certificate, lien notice, release and payment receipt together. Maintain a dated log of calls, decisions, delays and who attended the site. Photograph concealed work before it is covered and photograph progress and defects. The FTC notes that these records can help resolve disputes and that receipts may be needed for taxes.
Use a stage-by-stage sign-off. Before each payment, confirm that the described work is complete, materials listed as delivered are on site, required inspections passed and the site is reasonably safe. Before final payment, verify that the work meets the contract, written warranties are in hand, excess materials and tools are removed, the punch list is resolved and lien releases cover the amount being paid.
What if the contractor stops work or a dispute starts?
Raise the issue promptly and describe the cure you want in writing. Follow phone calls with a letter sent by certified mail, return receipt requested, and keep a copy. Do not withhold every payment casually; document the unfinished or defective work and follow the contract’s dispute process.
If the contractor does not resolve the problem, the FTC lists your state attorney general or local consumer-protection office, local builders’ associations, dispute-resolution programs and the FTC’s Consumer Sentinel reporting system. In California, contact CSLB at 800-321-2752 and consider a separate complaint to the California Attorney General. The CSLB notice says complaints against a licensed contractor are generally subject to a four-year legal deadline; confirm jurisdiction and timing before relying on it.
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A practical go/no-go decision
Proceed only when all of these answers are yes:
- Does the legal business name and license classification match the proposed work?
- Did you independently read complaint and discipline information?
- Did the contractor provide current insurance information that you verified with the carrier?
- Do at least three comparable references support the contractor’s communication and completion record?
- Are bids itemized on the same scope, materials, exclusions and schedule?
- Does the contract assign permit responsibility, define cleanup and warranties, and require signed change orders?
- Is the deposit within your state’s legal limit and are later payments tied to completed work or delivered materials?
- Do you understand which subcontractors and suppliers are involved and how lien releases will be obtained?
- Are cancellation notices and any state-required insurance and mechanics-lien language present?
If any answer is no, pause before paying or signing. A slower selection process is usually cheaper than trying to unwind an unlicensed, uninsured or poorly documented renovation.
Frequently Asked Questions
Can I hire an unlicensed contractor for a small renovation?
That depends on your state and the job, but a low price does not remove licensing, permit or injury risks. In California, the CSLB guidance summarized by ContractorSearch says licensing is generally triggered at $1,000 in labor and materials, by a required building permit or by additional workers; call CSLB if the search result is unclear.
What should I do if a contractor will not let me call the insurer?
Treat refusal as a verification failure and do not pay a deposit. Ask for a current certificate or the contract’s statutory insurance notice, then contact the named carrier through an independently located phone number rather than relying only on a contractor-provided verbal assurance.
Do I need to keep renovation paperwork after the project ends?
Yes. Keep the contract, permits, inspection results, invoices, receipts, warranties, photographs, change orders and lien releases together. The FTC notes that records can support a dispute and receipts may be needed for tax purposes.
Can I dispute a renovation charge on my credit card?
The FTC brochure says that after a good-faith effort to resolve a problem with the seller, a consumer may contact the card issuer and withhold payment up to the amount of credit outstanding for the purchase, plus related charges. Card-network rules vary, so contact the issuer promptly and keep evidence of the dispute and your communications.
