What Actually Separates a Good Roofer From a Bad One
Roofing attracts a lot of transient operators, especially after storms. Someone knocking on your door the day after a hail event and offering to start tomorrow is not a reason to say yes. Before you hire anyone in Denver, verify these things yourself -- don't just take their word for it:
- Active Colorado contractor license: Ask for the number and look it up on the state licensing board's website. Takes two minutes. If they can't give you a number, stop there.
- General liability insurance: Covers damage their crew causes to your property. Get the certificate, not a verbal assurance.
- Workers compensation: If someone falls off your roof and they don't carry workers comp, you could end up liable. Ask for proof.
- Local presence: A contractor based in or near Denver has a reputation to protect here. Someone traveling in from out of state after a storm does not.
- Written workmanship warranty: Ask what they stand behind after the job is done, and get it in writing. Manufacturer material warranties are separate from this.
Ask Every Contractor These Questions
A legitimate contractor won't be bothered by any of these. Someone who gets defensive or evasive is telling you something.
- What's your Colorado license number? Can I look it up myself?
- Can I see current certificates for liability and workers comp -- not just hear that you have them?
- Is this a written, itemized estimate? What's explicitly not included?
- What material brand and grade are you proposing? What's the manufacturer warranty?
- Who's physically doing the work -- your employees or subs?
- Do you pull permits when the local code in Denver requires it?
- What's the workmanship warranty and what does it actually cover?
- What happens if the timeline runs long or you find unexpected damage under the shingles?
Comparing Estimates the Right Way
Two or three written estimates before you commit. Not to find the cheapest bid -- to understand what you're buying. A few things that matter more than the total price:
- Is the scope the same: One bid might include replacing the underlayment; another assumes it stays. You're not comparing the same job if the scopes differ.
- What shingle grade: A 30-year architectural shingle is not the same product as a 3-tab. Ask exactly what's being installed.
- What's excluded: Every estimate should spell out what isn't covered. Surprises mid-job are how costs balloon.
- Payment terms: 25-30% upfront is normal. Full payment before the job starts is a flag. Full payment before completion is a bigger one.
- The low outlier: A bid that's dramatically cheaper than the others isn't a deal. It's usually missing scope, using inferior materials, or planning to cut corners on labor. Find out why before you take it.
Walk Away If You See Any of These
These aren't minor concerns. Each one is a real pattern that leads to bad outcomes:
- Showed up unsolicited after a storm and is pushing you to decide today
- Can't or won't provide a license number or insurance certificates
- Wants full payment before work starts
- Offers to "help you get around" your insurance deductible -- that's insurance fraud in most states
- Only has a verbal estimate, nothing in writing
- No local address, no verifiable presence in Denver, no history you can check
- Says you don't need a permit -- when local code says you do
Licensing in Colorado
Colorado requires contractor licensing for roofing work above certain thresholds. Requirements can also vary at the county or city level in Denver. Before anything starts, ask for:
- Their current Colorado contractor license
- A certificate of general liability insurance
- A certificate of workers compensation insurance
You can verify Colorado contractor licenses directly on the state licensing board's website. Don't skip it for any job over a few hundred dollars.
Frequently Asked Questions
How do I verify a roofer's license in Colorado?
Go to the state contractor licensing board's website and search by name or license number. Takes two minutes. If the license is expired, inactive, or not there at all -- that's your answer.
How many estimates should I get?
Two or three. One gives you a number. Two tells you whether it's a fair number. Make sure each estimate scopes the same job -- otherwise you're comparing a full underlayment replacement against a patch-and-pray, which isn't a real comparison.
What insurance should they carry?
General liability and workers comp. Both. General liability covers damage they cause to your property. Workers comp means if someone falls off your roof, you're not the one paying their medical bills. Ask for current certificates before they start anything.
Does RoofRepairSource rank or rate contractors?
No. We don't publish rankings -- we're not going to call someone the best roofer in Denver based on nothing. We connect homeowners with local contractors and give you the tools to evaluate them yourself.
RoofRepairSource is a roofing information and contractor-matching service. We are not a roofing contractor. When you request help, we may connect you with a local roofing company that serves your area.