Pricing pressure
A special price that is only good if you sign today, and a bid that comes in dramatically lower than every other one you collected, are both flagged by Washington's Department of Labor & Industries as reasons to slow down, not speed up.[1]
How they want to be paid
Cash-only demands and a large deposit requested upfront are treated the same way: as a warning sign, not a standard business practice.[1]
Missing paperwork
No written contract, a bid that is not complete, or credentials and references that cannot actually be verified are all reasons cited to walk away before work starts.[1]
So is a contractor who asks you, the homeowner, to pull the building permit yourself instead of doing it themselves.[1]
A business that is hard to pin down
California's licensing board points to a missing current business address, or a contractor reachable only by cell phone, as signs worth noticing before you hire.[2]
A warranty that sounds too good
It sounds backward, but Washington explicitly lists an exceptionally long warranty offer as one of its warning signs, alongside a contractor who only works evenings and weekends.[1]
What hiring unlicensed actually costs you
Florida law strips an unlicensed contractor of the right to enforce their own contract, and of any lien or bond claim on the job, which cuts both ways: it protects you from their claims, but it also means you have less legal ground to stand on if their work fails.[3]
The reference check that actually works
California's licensing board points homeowners toward local building departments, trade associations and consumer protection agencies as reference sources, not just the names a contractor hands you directly.[2]
A contractor who bristles at that suggestion is itself worth noting.
Bids that do not match on paper
Comparing bids only on total price hides a lot. Two bids for the same-sounding job can differ in scope, materials and warranty terms enough that the lower number is not actually the better deal.
What to do when you spot one of these
One warning sign is a prompt to ask a direct question, not necessarily to walk away immediately. A company with a real answer for why their price is lower, or why they want a bigger deposit, is a different situation than one that gets defensive or vague.