What Washington actually requires
Washington does not set a single universal deposit cap for home improvement work. That means there is no magic legal percentage to point to. So this is really about judgment and self-protection, not a hard rule you can cite.
A modest deposit is completely normal. Contractors use it to reserve your spot on the schedule and to order materials, especially custom cabinets or countertops with long lead times. What should make you pause is a demand for most, or all, of the project cost before any work begins. That is one of the most common warning signs of a problem contractor.
How to keep your money safe
- Keep the deposit reasonable. Enough to cover scheduling and initial materials, not the whole job.
- Use a milestone payment schedule. Tie each payment to completed, inspected work, so you are never far ahead of what has actually been built.
- Never pay in full before completion. Hold a final payment until the work is done and you are satisfied.
- Put it in writing. The deposit, the milestones and the final payment all belong in a signed contract.
Verify before you hand over a dime
Before you pay anything, confirm the contractor is registered with L&I at lni.wa.gov. A registered contractor carries a surety bond and liability insurance, and hiring an unregistered one is illegal and leaves you with no protection if the deposit disappears. Here is how to verify a contractor's license.
A big upfront deposit combined with cash-only or high-pressure tactics is a classic scam pattern. Read how to avoid contractor scams if a request feels off, and use our questions to ask a remodeler at the bid stage.
The safest deposits go to contractors who are already vetted and registered. Get free quotes from trusted Washington pros and compare payment terms before you commit.