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Homeowner guide · ~12 minute read · 50-state coverage

How to hire a contractor without getting burned.

Five simple checks separate the contractors who finish projects from the ones who leave unfinished ADUs, busted drywall, and disputed liens on your title. Run them in order, takes about an hour total, and you avoid 95% of the stories that show up in state licensing board disciplinary actions.

The real risk

What goes wrong when homeowners skip vetting, based on 2023-2025 state licensing board disciplinary data: abandoned projects with subs unpaid (mechanic's liens get filed against your title), unlicensed workers injured on-site (your homeowner's insurance fights the claim), insurance gaps that leave you personally liable, and permit shortcuts that surface at resale years later when the buyer's inspector flags unpermitted work. None of these stories start with a bad contractor on day one. They start with a homeowner who didn't run the five checks.

Check 1 — Verify the license is active

Every state licensing board publishes a free public license-lookup portal. Enter the contractor's license number. You're confirming three things: status (Active, not Expired / Suspended / Revoked), class (does their license class actually cover your project — a B-General isn't qualified for a structural concrete job in California), and disciplinary history (open complaints, past suspensions, bond claims).

State-by-state lookup URLs for the top ten metro states:

Free tool: our /tools/license-lookuproutes you to the right state portal based on the contractor's state — 17 jurisdictions wired, no email capture.

Check 2 — Confirm insurance and bonding

Ask for the contractor's ACORD 25 Certificate of Insurance. It's a standardized one-page document their insurance broker generates in 30 seconds — if they hesitate, that's a signal. The ACORD 25 lists coverage limits, policy numbers, and effective dates. Three things to verify: general liability ≥ your state minimum (usually $500K-$1M per occurrence), workers compensation is active (if they have employees — sole proprietors in some states can opt out, but they should disclose), and you are listed as a Certificate Holder so you get notified of lapses during your project.

Bonding is separate. A contractor's license bond is a financial guarantee filed with the state licensing board. If the contractor doesn't finish the work or doesn't pay their subs, you can file a claim against the bond. California CSLB requires a $25,000 minimum. Texas and Florida vary by license class. The state board website will show active bond status on the license lookup.

An ACORD 25 alone is not enough. Ask for the broker's name and phone number and call to confirm coverage is current as of today — insurance can be canceled mid-policy. Five minutes on the phone.

Check 3 — Call three references

Don't rely on Yelp stars. The BBB A+ rating (when present) is the single strongest signal — it reflects a zero-unresolved-complaint record and active accreditation. But even BBB can be noisy. The real data is three reference calls.

Ask the contractor for three past clients whose project was similar in scope and size to yours. A kitchen remodeler should give you three kitchen references. An ADU specialist should give you three ADU references. If they give you references from a scope unlike yours, they're signaling they don't have the experience you need.

Call each. Five questions: (1) Did they finish on the schedule you agreed to? (2) Did change orders stay reasonable or did the final price creep? (3) How did they handle problems — good contractors have problems too, it's how they handle them. (4) Would you hire them again? (5) Is there anything you'd do differently in how you structured the contract? Red flag: any reference who is vague, hesitant, or adds qualifiers.

Check 4 — The estimate process

A real estimate is line-item. It lists materials with grade and quantity (tile: 120 sq ft of ceramic 12×24 at $4.50/sq ft = $540), labor hours by trade, scope exclusions (things NOT included), a schedule with milestones, and a payment schedule tied to milestones. “We'll figure it out as we go” is a $40,000 mistake — that phrase is the single most reliable predictor of a contract dispute. Ask for the estimate in writing. Every contractor you're seriously considering should provide one.

Compare estimates apples-to-apples. Two bids on the same kitchen should both include cabinets (same brand, same quality tier, same quantity), countertops (same material, same sq footage), appliances (which ones are included in the bid vs your supply), electrical (what's new vs what's existing), plumbing, and tile. If Bid A is $18K and Bid B is $28K, read line by line — the $10K delta is usually in cabinet grade or what's excluded. The cheapest bid is rarely the best bid. The clearest bid usually is.

Sanity-check pricing against regional averages. Our per-city cost hubs at /cost/{city}-remodel-costs-2026 publish 2025-2026 medians for kitchens, bathrooms, ADUs, full renovations, and specialty work across 75+ metros. A bid that's 30% below the regional median is either a bait bid (expect mid-project change-order shock) or the contractor doesn't know their numbers. A bid 20% above median needs to justify the premium in scope or materials.

Check 5 — Read the contract before you sign

Four non-negotiable clauses every construction contract should contain. First, a payment schedule tied to physical milestones, not calendar dates — “25% at rough-in inspection pass” not “25% on July 15.” California CSLB caps residential down payments at 10% or $1,000 whichever is less; a contractor asking for 30-50% upfront is either cash-strapped or planning to disappear. Second, a written change-order process: all changes to scope must be in writing, signed by both parties, with stated cost and time impact. Third, liquidated damages for late completion — a modest daily penalty ($100-$250/day for residential) that aligns the contractor's incentive with your schedule. Fourth, the federal three-day right-to-cancel clause, which is required on every door-to-door or in-home signing.

Additionally: dispute resolution (arbitration vs litigation, venue), mechanic's lien release at each payment, and warranty terms (most states require a 1-year workmanship warranty; better contractors offer 2-5 years). Read the contract fully. If a clause is ambiguous, ask the contractor to clarify in writing before you sign. A contractor who pushes back on any of these clauses is not the contractor you want.

Red flags checklist

The lead-platform reality

If you submit a contractor-search form on Angi, Thumbtack, HomeAdvisor, or Houzz Pro, your name, phone, email, and project description are sold simultaneously to 3-10 contractors in your zip code. Each contractor pays the platform $20-$80 for the lead. Each contractor calls you on their own. Expected volume: 4-8 phone calls and texts in the first 24-48 hours, sometimes continuing for weeks. This is not a platform abuse — it is how the pay-per-lead business model works, and it is disclosed in each platform's terms of service.

The 2023 FTC $7.2M settlement with HomeAdvisor (see ftc.gov) documented the contractor side of this equation: contractors received leads outside their trade or service area, and the platform's pre-screening did not meaningfully filter. For homeowners, the settlement is evidence that the structural incentive — revenue earned at the moment the lead is sold, not at the moment a project completes — produces misalignment.

If you want to see the exact number of contractors who will receive your info for your project before you submit the form, use our free /tools/exposure-check. Enter zip + project type + platforms you're considering — see the fan-out number, the “lead tax” baked into every quote, and the alternative. No email capture.

The alternative: exclusive match

AskBaily inverts the shared-lead model. You enter the chat, an AI assistant (Baily) walks you through a structured scoping pass — project type, scope, budget, timeline, constraints, style preferences — and the output is a structured project brief. We then route that brief to exactly one contractor in your area who passes a live state-license-board check, has active insurance and bonding, and whose declared specialties fit your scope. If the first match doesn't land, a second is surfaced after a short delay. Your contact info is never sold.

AskBaily is currently live in all 50 US states and 12 international regions. The /for-pros/recruit/{state} pages detail the active partner pool per state. To start a match, open the chat at askbaily.com and describe your project.

Frequently asked questions

How long should a contractor estimate take?

For a scoped remodel (kitchen, bathroom, ADU) a real contractor should return a line-item estimate within 5-10 business days after the site visit. If you get a quote the same day without a site visit, it is not an estimate — it is a range. If you're told 'we'll figure it out as we go,' walk away.

Is it a red flag if a contractor asks for cash?

Yes. Not 'they're hiding something' necessarily — cash is legal — but it is a red flag that the contractor is not running the books correctly, is not reporting labor to workers comp, or cannot qualify for a merchant account because of past disputes. Pay by check or credit card. A real contractor accepts both.

How much should I put down?

California CSLB statute caps residential construction down payments at 10% of the total contract or $1,000, whichever is less. Other states are less strict but the principle holds: a contractor asking for 50% upfront is either underwater on their cash flow or planning to disappear. Standard progress-payment schedules pay 10% down, 25-30% at rough-in, 25-30% at mid-project, and 15-20% at substantial completion with 10-15% held back until final punch list.

What's the difference between a bonded contractor and an insured one?

Insurance (general liability, workers comp) protects you if something goes wrong during the job — a worker falls, a wall gets damaged, a fire starts. Bonding is a financial guarantee that the contractor will complete the work and pay their subs and suppliers; if they don't, the surety pays you up to the bond amount. Every state licensing board requires some combination of both. CSLB requires a $25,000 contractor's license bond plus workers comp if they have employees. TDLR in Texas is different. Your state board's website lists exact requirements.

How do I know if a lead-gen platform is selling my info to multiple contractors?

Read the platform's terms of service. Angi, HomeAdvisor, and Thumbtack all disclose shared-lead mechanics in their ToS — your information is sold to 3-10 contractors in the trade. The /tools/exposure-check tool shows, for your specific zip code and project type, exactly how many contractors will receive your contact info across each platform.

Should I always get three bids?

Conventional wisdom says yes. Modern reality: if a contractor is licensed, bonded, insured, has strong references for similar work, and gives a detailed written estimate that lines up with regional averages, a single qualified bid is often better than three generic ones. Three bids force contractors to compete on price, and price competition in construction is where corners get cut. The better framing: get one excellent match, verify thoroughly, and if the price is within 10-15% of regional averages (check /cost/{city}-remodel-costs-2026 for your city), sign.

What's a change order and how do I protect myself?

A change order is any modification to the original scope — adding a window, swapping cabinet materials, extending timeline. Every change order should be written, signed by both parties, and include cost impact, time impact, and revised total contract value. A contractor who tells you 'oh we'll just add that on the end' is setting up a dispute. Written change orders protect both parties.

What's the difference between a general contractor and a handyman?

A general contractor (GC) is licensed by the state to coordinate multiple trades — framing, electrical, plumbing, HVAC, finish. They pull permits, schedule inspections, and are legally responsible for the project. A handyman is an unlicensed worker handling small repairs typically under a state-set dollar threshold ($500 in California, $1,000 in Texas, varies elsewhere). For any renovation involving permits, electrical, plumbing, or structural work, you need a GC.

How do I find out if a contractor has had complaints filed against them?

Every state licensing board publishes a disciplinary history tied to the license number. CSLB's website lets you search any California contractor and see all open, closed, and pending complaints plus bond claims. TDLR in Texas is similar. For platforms, search the contractor's business name on the BBB (better-known platforms have the A+ rating visible on the business profile). Past complaints don't disqualify a contractor — the question is severity and pattern. Two billing disputes over ten years is noise. Twenty workmanship complaints and three pending license suspensions is a pattern.

Is a review on Angi or Thumbtack trustworthy?

Partially. Both platforms do filter obviously fake reviews and both let contractors solicit reviews from past clients. But because both platforms earn revenue at the moment a lead is sold (not at the moment a project is completed), the economic incentive is to maintain the flow of 5-star reviews, which means low-rating reviews get challenged aggressively and sometimes removed. Cross-reference Angi/Thumbtack reviews with the state licensing board complaint history and Google Business Profile reviews. A contractor with 4.8 stars on Angi and 2 open CSLB complaints is telling you two different stories.

How long does a kitchen or bathroom remodel actually take?

Real timelines, assuming permits are not delayed: bathroom refresh 2-4 weeks; full bathroom gut-to-finish 4-8 weeks; kitchen refresh 4-6 weeks; full kitchen gut-to-finish 8-14 weeks. ADU ground-up: 6-10 months. Full home renovation: 6-18 months. A contractor promising a 2-week full kitchen gut is either inexperienced or lying. A contractor telling you 'it depends' without giving ranges is not being helpful — they should know the ranges for their market.

What makes AskBaily different from Angi and Thumbtack?

AskBaily is exclusive-match, not shared-lead. Each homeowner is routed to one licensed, insured, scope-fit contractor after an AI scoping pass. The contractor pays zero until a job closes (tiered 8-15% take-rate on close, not per-lead). AskBaily publishes its full fee schedule at /transparency. License re-verification is live at the moment of match — not self-reported at signup six months ago. If you want one well-matched contractor instead of a phone panel, that's the difference.

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