How to choose a roofing contractor is the question most homeowners forget to ask until three bids are on the kitchen table. You have two local names and one low phone quote, and you are trying to figure out who is real and who is just chasing the last storm.
The right contractor shows up with insurance, a state license where your state requires one, and a written scope that names the materials by brand. The wrong one talks fast, takes a deposit, and disappears the moment the last shingle is nailed down.
The First Filter: License, Insurance, and a Real Address
The single biggest predictor of how a roof replacement goes is the contractor you hire. Most of the worst stories start with someone who skipped the basic paperwork.
Ask for the contractor’s state license number if your state requires one. Twenty-three states currently license roofers at the state level; another twenty plus license them at the county or municipal level. Either way, the number should check out against your state licensing board website.
Ask for the certificate of insurance directly from the insurance agent, not from the contractor. You want general liability (usually $1 million minimum) and workers compensation for every person on the roof.
Ask for a physical address, not a P.O. box. A real roofer has a yard where the trucks live and a warehouse where the materials sit. A P.O. box is not proof of a scam, but it is a small signal worth noting.
Ask whether the contractor pulls the permit themselves or expects you to do it. The answer should be themselves. Our roof replacement permit and code requirements page covers what your local office actually asks for.
The Second Filter: The Estimate Itself
A real roofer writes a real estimate. A weak one writes one number on a piece of paper and calls it a quote. Here is what to look for.
The estimate should name the shingle brand and product line, the underlayment brand, the ice and water shield coverage in linear feet, the flashing scope, and the ventilation plan.
The estimate should break out labor, materials, disposal, and permit fees. A bid that rolls everything into one number is hiding where the corners are getting cut.
The estimate should state the install warranty in years. Most reputable roofers offer 5 to 10 years on labor. A one-year install warranty is a yellow flag.
The estimate should include a start date window and an expected duration. A roofer who promises “we will start Monday” without confirming materials delivery is overpromising.
For what those numbers mean and how to compare them, our roof replacement cost guide has the per-square-foot breakdown by material and region.
The Third Filter: References, Reviews, and the Last Three Jobs
Anyone can put a logo on a truck. The question is what the last three roof replacements look like three years later.
Ask for three references from jobs at least two years old. Drive past the houses. Look at the roof lines from the street. Look for missing shingles, exposed nail heads, and flashing gaps that should not be there.
Check the contractor’s reviews on Google, the Better Business Bureau, and any local service like Angi or HomeAdvisor. A pattern of complaints about communication or cleanup is more telling than one bad review about weather delay.
Ask whether the crew is in-house or subcontracted. Subcontracted crews are common in roofing and not automatically bad, but the contractor should know their names, their tenure, and their training.
Ask who supervises the job. The person selling you the roof should not be the same person installing it unless the company is small and intentional about it.
The Fourth Filter: Red Flags You Should Walk Away From
Some signals mean stop, even if the bid is the lowest. Here are the ones to take seriously.
The first red flag is door-to-door solicitation after a storm. Storm chasers follow weather, not customers. They do quality work sometimes, but they also do volume work and disappear when the next storm hits a different state.
The second is a request for large upfront payment. A deposit of 10 to 30 percent is normal; paying half or more before any work starts is a high-risk pattern.
The third is high-pressure tactics around insurance claims. A roofer who tells you exactly what to say to your adjuster is operating in a gray zone. Your adjuster should be working from your documentation, not the contractor’s script.
The fourth is a missing or vague warranty. A lifetime warranty on materials means nothing without a written install warranty and a real company behind it. Our roof shingle lifespan and warranty guide explains how manufacturer and installer warranties stack.
The fifth is a refusal to put the scope in writing. If the contractor will not give you a written estimate with materials and labor broken out, you do not have an estimate.
What to Ask Before You Sign Anything
The right roofer welcomes these questions. If any answer feels evasive, that is information too.
- What is your state license number, and can I verify it today?
- Will you provide a certificate of insurance from your agent, naming my address during the project?
- Who pulls the permit, and who attends the inspection?
- What is the install warranty in writing, and what does it cover?
- Are the crew in-house or subcontracted, and how long has the lead been with you?
- What shingle, underlayment, and flashing brands are written into the bid?
- How do you handle decking surprises after tear-off, and what is the per-sheet price?
- What is the cleanup scope, and do you run a magnet sweep of the yard?
- What is the payment schedule, and is the final payment due after the inspection passes?
- Can I have three references from jobs at least two years old?
If the answer to most of these is yes, you are in good shape. If two or more are evasive, keep looking.
What Comes Next After You Pick One
Once you choose, the project itself moves fast. Use our roof replacement process step by step page to follow along from quote to final walkthrough.
For the day the crew shows up, our how to prepare your house for roof replacement page covers what to move and what to cover so nothing outside the construction zone gets damaged.
For the project budget, our roof replacement cost guide has the regional breakdown. If the timing on payment is tight, our financing a new roof options page breaks down home equity, contractor programs, and FHA Title I loans side by side.
If you are unsure whether you need a full replacement or a repair yet, our roof replacement vs repair page has the decision framework. For the symptom side, our signs you need a new roof guide walks through how to tell which side of the line you are on.
If the job is storm-driven, our storm damage roof insurance claim page covers the documentation adjusters actually look for, and how your contractor fits into that process.
For the broader project walkthrough and what a roof replacement actually includes, our roof replacement pillar is the place to start. The right contractor is the one who makes the rest of the checklist feel routine.
