A renovation can survive a bad tile choice. It rarely survives a bad contractor. The warning signs are usually visible before the contract is signed: vague scope, pressure to pay a large deposit, no written schedule or a license number that does not check out. The good news is that a little diligence at the start filters out most of the risk.
Write the Scope Before You Call Anyone
Contractors price what they can see in writing. A clear scope lists the rooms, the work, the materials, the exclusions and who is responsible for permits and cleanup. Attach drawings or a sketch if you have them. If you cannot describe the job in one page, you are not ready to request bids.
Decide what you will supply and what the contractor will supply. Homeowners often buy fixtures and appliances to save money, but that shifts delivery risk onto them. A missing faucet can idle a plumber for a day. Write it down either way.
- License: verify the number with your state or local board
- Insurance: request a certificate for liability and workers' comp
- Bids: three written bids on the same scope
- Deposit: 10 to 30 percent, tied to a schedule
- Payments: progress-based, never for work not done
Check the License and the Insurance
Licensing rules vary by state and by trade. A general contractor may need a state license, a local registration or both. Look up the number on the official board site rather than trusting a photocopy. Check for complaints and disciplinary actions, not just active status.
Ask for a certificate of insurance and call the insurer to confirm it is current. If the contractor has employees, workers' compensation matters. If a worker is injured on your property without coverage, the claim can follow you. Do not accept a verbal assurance or a certificate that names a different company.
Compare Three Bids, Line by Line
Three bids on the same scope give you a real range. The lowest number is often low because something is missing: painting, permits, dumpster fees or temporary power. Compare line items, allowances and exclusions. Ask each bidder to explain the biggest gap between their price and the others.
Cheap allowances are a common trap. A $2,000 allowance for tile sounds generous until you price the tile you actually want. Ask what happens when the allowance is exceeded, and get the markup in writing. A bid is only useful if you can compare it to another bid without translating it first.
Anyone can be busy. Ask who will be on site on Monday, and get the name in the contract.
Read the Contract Before You Sign
The contract should name the contractor, the license number, the scope, the start date, the completion date, the payment schedule and the change-order process. It should say who pulls permits, who carries insurance and what happens if the schedule slips. Vague language favors the party who wrote it.
Ask for a lien waiver process. A lien waiver confirms that a subcontractor has been paid and gives up the right to file a lien against your property. Without it, you can pay the general contractor in full and still face a claim from an unpaid supplier. For consumer guidance on hiring contractors, see usa.gov.
Protect the Payment Schedule
Never pay the full job up front. A reasonable deposit covers materials and mobilization, usually 10 to 30 percent. After that, pay in stages as work is completed and inspected. A concrete slab, a passed rough-in inspection and a finished paint job are all legitimate milestones. A calendar date is not.
Keep a retention of 5 to 10 percent until the punch list is complete. It sounds harsh and it is standard. Contractors expect it, and it gives you leverage to finish the small items that otherwise wait months. Pay by check or card so there is a record; avoid large cash payments.
Red Flags Worth Walking Away From
Be cautious of a bid that arrives in an hour, a contractor who asks for a large cash deposit, a license number that cannot be verified, or a request to pull the permit in your name to avoid a fee. High-pressure discounts that expire today are a sales tactic, not a favor.
Also watch for a contract with no schedule, no change-order clause and no written warranty. And if the contractor will not let you speak to two recent clients, that is your answer. A professional will happily provide references; a bad one will explain why references are private.
Manage the Job Without Micromanaging
Set a weekly walkthrough and keep a shared list of open items. Put decisions in writing, even by text. Do not direct subcontractors yourself; route every change through the general contractor so responsibility stays clear. If a change is needed, get the price and the schedule impact before the work starts.
Photograph the job at every stage, especially before walls close. Keep all receipts, permits and change orders in one folder. If the project stalls, a clear paper trail is the fastest route to a solution. And if the scope includes a kitchen, our kitchen remodel budget guide will help you price it before the bids arrive.
For a project that touches the whole house, see our renovation timeline before you agree to a start date. Hiring well is not about finding the cheapest or the friendliest. It is about finding someone whose license, insurance, references and paperwork all hold up under a second look. Spend a week checking and you will save a month of arguing later.
