How to Vet a Contractor Before You Hand Over a Deposit

Last spring a friend of mine paid a $4,000 deposit to a guy with a shiny truck and a nice laminated flyer. Three weeks later the number stopped working. She never saw a single shingle move. The whole thing cost her a summer of stress and one very unpleasant conversation with her landlord.

Here's the good news: none of that had to happen. A licensed contractor carries verifiable credentials, and you can check them in about ten minutes from your couch. If you're in Southern California and want to see what a properly documented operation looks like, Guardian Roofs is a long running Orange roofing contractor whose license number sits right on the page for anyone to verify. That's the standard, not the exception. Any pro worth hiring will make checking easy.

This guide walks you through the exact sequence I use before money changes hands. It works for roofers, painters, movers, and the guy who promises he can regrout your bathroom in a weekend.

Start With the license, because it's the cheapest check you'll ever run

Every state runs its own licensing board, and most publish a free lookup tool. Type in the contractor's name or license number and you'll see whether the credential is active, expired, or was never issued at all. California, for example, requires contractors to carry a state license for work above a fairly low dollar threshold. If someone can't produce a number, you're not talking to a contractor. You're talking to a stranger with a ladder.

I'd rather lose a day to a slow website than lose a deposit to a phantom. Pull the number, run the lookup, screenshot the result, and save it to your phone. Takes less than the time it takes to brew coffee.

One more thing on this step: match the license to the work. A general license doesn't automatically cover specialty trades, and a specialty license may not cover a full remodel. When in doubt, call the board and ask. They answer phones.

Read reviews like a skeptic, not a fan

Star ratings lie. I say that knowing it sounds cynical, but the pattern is consistent: a burst of five star reviews in the same week, all written in the same cheerful tone, often from accounts with exactly one review. Skip past those and read the two and three star reviews instead. That's where the useful texture lives.

What you're hunting for is how the contractor handled a problem. Did they come back and fix the leak, or did they go quiet? Did they explain the delay or just vanish? A company that resolves a mid job snag gracefully is worth more than a company with a perfect score and no paper trail.

Word of mouth still matters here. According to the Better Business Bureau, complaint patterns and how a business responds to them are a meaningful signal for consumers comparing providers. Browse the complaint history, read the company's replies, and notice whether the tone is defensive or practical. You'll learn more from three disputes than from three hundred glowing reviews.

The question that separates pros from pretenders

Ask for a certificate of insurance before anyone sets foot on your property, and ask for it in writing. You want two things: general liability coverage and workers' compensation. The first protects your building if something gets smashed. The second protects you if a worker gets hurt on your job. If a crew member falls off your roof and the company has no workers' comp, guess who the lawyers come looking for.

Don't accept a verbal yes. Ask the office to email the certificate directly from the insurer, then call the number on the certificate and confirm it's current. Some certificates are real but expired, and a surprising number of contractors let coverage lapse between jobs.

While you're at it, ask how long they've been operating under the current business name. A company that rebrands every couple years is telling you something.

Get the quote in writing, and make it specific

An estimate that says "roof repair, $6,500" is not an estimate. It's a wish. A real proposal lists materials by name, describes the scope in plain language, states the start date and the expected duration, and spells out what happens if the crew discovers rot or water damage underneath.

Here's the part most people skip: the payment schedule. Never pay the full amount up front, and be wary of anyone who demands more than a modest deposit before materials arrive. A common industry practice is to tie payments to milestones, so you release funds as work gets completed and inspected. Put that schedule in the contract. Handshake agreements are how deposit horror stories begin.

Check whether the contract includes a lien waiver clause and a clear change order process. When a job runs into surprises, and roofs love surprises, you want a written path for approving extra work instead of an awkward hallway negotiation.

A five step checklist you can run in one evening

Print this or save it to your notes app. Work through it in order.

1. Verify the license through your state board's lookup tool and screenshot the active status.
2. Request insurance certificates by email from the insurer, then call to confirm they're current.
3. Read the middle reviews on at least two platforms, prioritizing two and three star write ups.
4. Compare three written quotes side by side on materials, timeline, and payment milestones.
5. Hold back the final payment until you've done a walkthrough and the punch list is complete.

If a contractor pushes back on any of those five, treat it as information. Most good ones will hand you the documents before you ask, because they've been burned by the same bad actors you're worried about.

What about references?

Real references are recent and local, and they'll let you visit a finished job. Ask for two addresses within a few miles of your place and knock on a door. When a homeowner says the crew cleaned up every day and came back to fix a flashing issue, that's worth more than any brochure. Neighborhood apps work too; the Nextdoor community has become a genuine word of mouth channel in most cities, and you can read how neighbors describe a company over multiple seasons.

Do you need a written contract for a small repair?

Yes, even for a small job. The scale of the paperwork can shrink, but the essentials stay: scope, price, timeline, and payment terms. If it's a few hundred dollars, a one page agreement signed by both sides is plenty. Get it in a text or email if nothing else. Something in writing beats a good memory every time.