A remodel, an addition or a commercial build-out can be the biggest check you ever write. Most contractors are honest, hardworking people, and a few simple habits protect you and them: everything in writing, payments tied to finished work, and proof of insurance before work starts. This guide covers how to protect yourself when hiring a contractor for a big job, step by step, so you can sign with confidence instead of worry.
1. Get written bids for the same scope
Write down exactly what you want done, with photos and any drawings, and give the same scope to every contractor. Written bids for the same work are easy to compare, and they become the starting point for your contract.
2. Put the whole scope in the contract
- Every room and item of work, described clearly
- Materials and brands or quality levels, and allowances for things you choose later
- What is not included
- Start date, phases and an expected finish
- Who pulls permits and schedules inspections
- Daily cleanup and final cleanup, haul-away of debris
- Warranty terms, in writing
3. Tie payments to finished work
A fair payment schedule keeps both sides comfortable. Keep the deposit reasonable, then pay as stages are finished and checked: for example, after framing, after rough-in inspections, after cabinets are set, and at final completion. Some states limit deposits on home improvement work, so check the rules where you live.
| Safer | Riskier |
|---|---|
| Payments tied to finished, inspected stages | Large payments before work starts |
| Checks, cards or traceable transfers with receipts | Cash only, no receipts |
| Final payment after the punch list is done | Paying in full before the job is finished |
4. Every change, in writing
Changes happen on every big project: a wall hides a surprise, or you choose a different tile. Use a written change order for each one, with the change, the effect on price and schedule, and both signatures, before the work is done. It prevents arguments at the end.
5. Proof of insurance before anyone picks up a hammer
Ask for a certificate of insurance and confirm it with the insurer. General liability protects your property if something is damaged. If the contractor has employees, ask about workers' compensation too. Ask about any license your city or state requires, and look it up.
6. Lien waivers on big jobs
On larger projects, subcontractors and suppliers may have the right to file a claim against your property if they are not paid, even if you paid your contractor. Ask for lien waivers with each payment, confirming that the people who did the work and supplied materials were paid. Rules vary by state.
7. Watch for red flags
- Pressure to sign today or "this price is only good now"
- Cash only, or a large payment before any work
- No written contract, or a vague one-line bid
- No proof of insurance, or reluctance to pull permits
- Door-to-door offers right after a storm
8. Keep good records
Keep the contract, every change order, receipts, permits, inspection reports, photos of each stage and every message in one place. If a question comes up later, or when you sell the house, you will be glad you did.
Before you sign: a quick checklist
- I have at least two or three written bids for the same scope
- The contract lists the full scope, materials and what is not included
- The payment schedule is tied to finished stages of work
- I have seen proof of insurance and checked any required license
- The contract says who pulls permits and handles inspections
- The start date, phases and expected finish are written down
- Change orders must be written and signed before extra work starts
- Warranty terms are in writing
- I have read every page, and I asked about anything unclear
During the job: stay close, stay friendly
Good communication prevents most problems. Agree on a regular check-in, such as a short walk-through each week, so you see progress and can ask questions while they are small. Keep requests in writing (a message is fine) so there is a record. Before each payment, look at the work that payment covers and make sure it matches the contract.
At the finish line
- Walk the job together and write a punch list of anything left to finish or fix.
- Hold the final payment until the punch list is done and final inspections have passed.
- Collect the paperwork: final lien waivers, warranties, manuals for new equipment and the permit sign-offs.
If something goes wrong
Most disagreements can be solved with a calm conversation. Start there: say what you expected, show where it is in the contract, and listen to their side. Follow up in writing with what you agreed. If that does not work, your contract, your records and your state or local consumer protection office are your next steps. This is general information, not legal advice; for a serious dispute, talk to a local attorney.
Compare written bids on BidHandyman
Post your project free with your scope and photos. Only pros approved by BidHandyman can bid. Compare written bids side by side, ask questions in messages, check insurance, and hire the one you trust, with no obligation. Then sign with confidence. Post your project, or read how to compare remodeling estimates and how to choose a contractor.