Idaho Contractor Guide

Licensing in Idaho

The average home improvement project in Idaho runs about $29,000. That's below the roughly $35,540 national average project cost. That's the 14th-lowest average project cost of the 50 states. Idaho is one of 31 states that requires a statewide contractor license through Idaho Division of Building Safety — always verify a contractor's license number before signing anything. The most common projects here are Deck addition, Window replacement and Bathroom remodel. Idaho requires public works contractor registration. Most residential work is locally regulated. Verify at dbs.idaho.gov.

Licensing body: Idaho Division of Building Safety

How to Vet and Pay a Contractor Safely

Get at least three written bids for anything over a couple thousand dollars — a bid that's dramatically lower than the others is a red flag, not a deal. Never pay more than 10–30% upfront (many states cap deposits by law); the rest should follow a payment schedule tied to inspected milestones, with the final payment held until the work passes a final walkthrough. Confirm the contractor carries general liability and workers' comp insurance — ask for a certificate naming you, not just their word for it — and get every change order in writing before the work starts, not after. For structural, electrical, or plumbing work, confirm your contractor is pulling the required permits — unpermitted work can complicate a future sale and may not be covered by insurance if something goes wrong.