Why This Decision Deserves More Scrutiny Than It Usually Gets
Hiring a general contractor is one of the largest financial decisions most homeowners make outside of buying the house itself, yet it often gets less due diligence than picking a car or a phone plan. Part of the reason is urgency — a storm damages a roof, a kitchen becomes unusable mid-renovation, or a homeowner simply wants a project moving — and urgency is exactly the condition that less scrupulous operators are counting on.
Metro Detroit has a large, competitive pool of contractors, from small crews to established full-service firms, and the difference in reliability between them can be enormous even when their marketing looks similar. Licensing, insurance, and contract terms are where that difference actually becomes verifiable, rather than a matter of trusting a sales pitch or a friendly first impression.
This guide walks through what to check before signing anything, the red flags that should make you slow down or walk away, and what a legitimate written contract should actually include.
Verify the License — Don't Just Take Their Word for It
Michigan requires residential builders and maintenance and alteration contractors to hold a state license, issued and tracked through the state's licensing authority. Any contractor doing residential construction work in Michigan should be able to provide a license number, and that number should be verifiable through the state's licensing lookup rather than just printed on a business card or truck door magnet.
A legitimate contractor won't hesitate when asked for their license number, and won't be offended by the question — it's a completely normal part of vetting anyone doing structural or system work on your home. If a contractor is cagey about it, changes the subject, or claims licensing "doesn't apply" to the type of work they're quoting, treat that as a serious red flag rather than a minor detail.
It's worth checking not just that a license exists, but that it's currently active — licenses can lapse, expire, or be suspended, and a license number alone doesn't confirm current standing. For more detail on how Michigan licensing verification actually works, see our companion guide on verifying a Michigan contractor's license.
Confirm Insurance and Bonding
Beyond licensing, ask for proof of general liability insurance and workers' compensation coverage, and don't accept a verbal assurance — ask for a certificate of insurance you can actually see. General liability protects you if something goes wrong on your property during the project; workers' compensation protects you from liability if a worker is injured on your job site.
This matters more than most homeowners realize. If an uninsured worker is hurt on your property and the contractor doesn't carry workers' compensation, the homeowner can end up exposed to costs that a legitimate, insured contractor would have absorbed. Asking for proof of insurance isn't an insult to a reputable contractor — it's standard practice, and a contractor with nothing to hide will produce it without friction.
Red Flags That Should Make You Pause
Storm-chasing door-knockers — contractors who show up unsolicited right after a storm, often from out of the area, offering to "inspect your roof for free" — are one of the most common patterns of bad experiences homeowners report. That doesn't mean every unsolicited knock is a scam, but the combination of urgency, unfamiliarity, and pressure to act immediately is a pattern worth treating with real skepticism.
Large upfront deposits before any work has started are another significant warning sign. Some deposit is normal for material procurement on bigger projects, but a contractor demanding the majority of the project cost before work begins shifts nearly all the risk onto the homeowner, with little recourse if the job stalls or the contractor disappears.
Pressure to sign a contract the same day, refusal to put anything in writing, and vague or missing pricing (verbal estimates that are never followed by a real written quote) are all closely related red flags. Legitimate contractors, especially busy, established ones, are generally not in a rush to get a signature before you've had time to think it over or get a second opinion.
A contractor who won't commit to a fixed price and instead talks in terms of "we'll figure out the final number as we go" is setting up conditions for change-order surprises later. That's not always malicious — some project types genuinely involve unknowns — but it should be discussed and documented up front, not left open-ended by default.
What a Written Contract Should Actually Include
A proper contract should specify the full scope of work in enough detail that there's no ambiguity about what's included and what isn't, a fixed price for that defined scope, and a realistic project schedule with a start and completion timeframe. It should also spell out how change orders are handled if the scope changes after work begins — ideally requiring written agreement and pricing before additional work proceeds, not a verbal add-on that shows up on the final invoice.
Look for language covering site cleanup and daily conduct expectations, payment schedule tied to project milestones rather than large amounts paid all at once upfront, and a workmanship warranty period after completion. A contract that's vague on any of these points leaves room for disputes later, when it's much harder to resolve them in your favor.
At Qualified Construction, every project runs on a written contract with a fixed price and fixed schedule — no surprise change orders unless the scope of work actually changes — along with daily site cleanup and a two-year workmanship warranty. We mention this not to make the sale here, but because it's a useful reference point for what a contract with clear terms actually looks like when you're comparing quotes.
Why Local, Established Track Record Matters
A contractor's history in your specific market is harder to fake than a polished website or a persuasive sales visit. A company that's been operating in Metro Detroit for years, with a visible base of completed local projects and a track record of reviews from actual neighbors, carries a different kind of accountability than a crew that showed up in the area temporarily, often chasing storm damage or seasonal demand.
Ask how long a contractor has operated in your specific counties, whether they use in-house tradespeople or subcontract most of the work out, and whether they can speak to past projects similar to yours. None of these questions guarantee a good outcome by themselves, but taken together with verified licensing, insurance, and a solid written contract, they meaningfully shift the odds toward a project that goes the way it's supposed to.