How to Choose a Roofing Company in Houston
Every roofer says they are the best. This page skips the claim and gives you the checks that actually separate one contractor from another, so you can compare any company, including us.
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Why the choice matters more in Houston
Half of the homes in Houston were built before 1982, according to the U.S. Census Bureau's American Community Survey 2020-2024. Many of those houses are on a second or third roof, and a replacement is one of the largest repairs a homeowner pays for.
Storms add pressure. NOAA's Storm Prediction Center logged 40 hail reports within 10 miles of Houston from 2015 through 2024, 9 of them 1.75 inches or larger. After a storm, door knockers show up fast. A clear set of criteria keeps you from choosing whoever arrives first.
Six checks you can verify yourself
License and insurance
Ask for proof of insurance in writing and confirm who issued any license the company claims. See what to ask in our licensed and insured contractor guide.
Manufacturer credentials
Shingle makers like Owens Corning and GAF credential contractors. You can confirm a company's status on the manufacturer's own contractor locator.
A written, itemized estimate
Materials, tear-off, underlayment, flashing, ventilation and cleanup should each be on paper. A one-line number is hard to compare.
A real inspection first
A contractor should get on the roof, take photos and show you the damage before quoting. A quote from the driveway is a guess.
No pressure to sign
Be wary of anyone who wants a signature the same day, especially right after a storm. A good offer is still good tomorrow.
Straight talk on insurance
No contractor can promise what your insurer will pay. Coverage depends on your policy and the insurer's decision.
Red flags after a Houston storm
The company asks you to sign before anyone has inspected the roof.
You are told the roof will cost you nothing or that your claim is a sure thing.
The offer includes waiving or absorbing your deductible. That is illegal in Texas.
There is no written estimate, only a verbal number.
Large payment is requested up front, before materials arrive.
You cannot find a physical address or a working phone number for the company.
How to compare two or three quotes
Get each roof inspected
Ask each company for photos of what they found. Compare the damage they report, not just the price.
Line up the scope
Check that every quote covers the same work: full tear-off or overlay, decking, underlayment, flashing and vents.
Compare materials by name
Brand and product line should be written down. Two quotes for different shingles are not the same job.
Read the terms
Look at the payment schedule, what happens if rotten decking is found, and how cleanup is handled.
Where GemSco fits
GemSco is family owned, fully licensed and insured, with more than 20 years of experience in residential and commercial roofing. We are an elite contractor for Owens Corning and GAF, and every estimate is free and in writing.
We inspect, document with photos and explain what we found before we quote. If you want to see how that works on a full project, read about our roof replacement process or our Houston roofing services. Then compare us against anyone else using the checks above. Call (844) 980-5506 to schedule an inspection.
Frequently Asked Questions
How many roofing quotes should I get in Houston?
Two or three is usually enough to see a fair range. More than that tends to add confusion. What matters is that each company inspected the roof and wrote out the same scope, so you are comparing the same job. A quote that is much lower than the rest often leaves something out.
Should I hire the roofer who knocked on my door after a storm?
Not without checking them like any other contractor. Ask for proof of insurance, a physical address and a written estimate after a real inspection. Do not sign anything on the spot. A legitimate company will give you time to compare and will not push you to decide the same day.
What does it mean that GemSco is an elite contractor for Owens Corning and GAF?
Both manufacturers run programs that credential roofing contractors who meet their standards. GemSco holds elite status with both. You can verify a contractor's standing on each manufacturer's website. Ask any company you are considering which manufacturer programs it belongs to and confirm it there.
Is the cheapest roofing quote a bad sign?
Not always, but check what it leaves out. Low quotes often skip new underlayment, flashing or ventilation, or assume no decking will need replacing. Ask how each item is priced. If a quote is low because the scope is smaller, it is not really cheaper, it is a different roof.
We’re Here to Help!
GemSco Roofing & Solar serves Houston, DFW, Austin, San Antonio and surrounding areas. We’re family owned and fully licensed and insured.