Free Roof Replacement Estimate in Houston
A good estimate is a document you can compare, not a number on a business card. Here is how GemSco builds one and what any Houston estimate should include.
Schedule Your Roofing Inspection Today
Fill out the information below and we’ll reach out to complete your estimate as soon as possible!
Why a written estimate matters
Half of the homes in Houston were built before 1982, according to the U.S. Census Bureau's American Community Survey 2020-2024. On older houses, what is under the shingles matters as much as the shingles. A quote that does not mention decking, flashing or ventilation leaves the expensive questions for later.
A written estimate lets you compare contractors on the same scope. It also gives you a record of what was promised. If the job ends up different from the paper, you have something specific to point to.
Use the estimate to ask questions. Why this underlayment? Why these vents? A contractor who inspected the roof should be able to explain every line, and show you the photo behind it.
How GemSco builds your estimate
Inspection on the roof
We check shingles, flashing, vents, gutters and signs of leaks, and look at the attic when we can.
Photos of what we find
You see the same damage we see, with photos, before we talk numbers.
Material options
We explain the options that fit your house, from asphalt shingle to metal or tile.
Written, itemized estimate
You get a free estimate in writing that lists the scope and materials.
Your decision, your timing
No pressure to sign the same day. Compare it with other quotes if you want.
What a complete estimate should list
Tear-off of the existing roof and disposal.
How replacement decking is priced if rot is found.
Underlayment type.
Shingle or roofing material by brand and product line.
Flashing at walls, chimneys and valleys.
Ventilation: ridge vents, intake vents or other changes.
Drip edge and starter strips.
Cleanup, including nails in the yard and driveway.
Payment schedule and what triggers each payment.
What changes the number
Size and pitch
Bigger and steeper roofs take more material and labor.
Material
Asphalt shingle, metal, tile and stone-coated steel all price differently. See our asphalt shingle roofing and metal roofing pages.
Layers to remove
A roof with two layers takes longer to tear off than one with a single layer.
Hidden damage
Rotten decking only shows up once the old roof is off. A clear per-sheet price avoids surprises.
Ventilation fixes
Correcting poor attic ventilation adds to the scope, but it protects the new shingles from heat. See our roof ventilation page.
Storm damage and your estimate
NOAA's Storm Prediction Center logged 40 hail reports within 10 miles of Houston from 2015 through 2024. If your roof took storm damage, our estimate documents it with photos. Whether a claim is covered depends on your policy and your insurer's decision. Our insurance roof inspection page explains how that process works.
GemSco is family owned, licensed and insured, and an elite contractor for Owens Corning and GAF. Financing is available. Learn more about our Houston roofing services or call (844) 980-5506 to book your free estimate.
Frequently Asked Questions
Is the GemSco roof estimate really free?
Yes. The inspection and written estimate are free, and there is no obligation to sign. We inspect the roof, take photos, explain what we found and give you the estimate in writing so you can compare it with other quotes on the same scope.
Why do roof replacement estimates in Houston vary so much?
Most of the difference comes from scope and materials. One quote may include new underlayment, flashing and ventilation while another leaves them out. Shingle brand and product line also change the price. Put the estimates side by side and check each line before deciding which one is lower.
Can I get an estimate over the phone?
A phone conversation can tell you what to expect, but a real estimate needs someone on the roof. Pitch, layers, flashing and decking condition all change the scope, and none of them show up in satellite images. Call (844) 980-5506 to schedule an inspection.
What happens if you find rotten decking during the job?
Rotten decking has to be replaced before the new roof goes on. A good estimate states how that is priced, usually per sheet, so you know the cost before work starts. We show you photos of any damaged decking we find.
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.