Commercial Gutters in Texas: Drainage Sized by a GAF GoldElite Contractor

Find the system that fits your building, then jump to real pricing. Commercial drainage isn't one product; it's a set of choices about how fast water leaves a large roof and where it goes once it does.

For confirmed per-foot and per-opening pricing on every system above, see the full commercial gutter cost breakdown for Texas →.

Gutters are one line item in a larger roofing and drainage scope. To see everything we handle for property managers and owners, start with our commercial roofing contractor in Texas page.

Here's the part most gutter bids skip. On a commercial building, drainage isn't cosmetic and it isn't isolated. When a box gutter overflows or a scupper backs up, water finds the parapet, the wall assembly, and eventually a tenant space. Now you're not managing a maintenance ticket; you're managing a tenant who's documenting damage and a carrier who wants to know why it wasn't caught sooner. That's the position no property manager wants to be in front of ownership.

That's the internal problem behind this whole page: if this goes wrong, you're the one explaining it in the meeting. So the job of a real drainage scope isn't just to move water. It's to keep a small problem small: to make sure a seam that's starting to open gets resealed on a schedule, not discovered by a tenant on a Monday.

Commercial gutters are where the building's roof actually meets the building's lease. When that connection fails, the carrier's claim and the tenant's complaint show up the same week. The buildings we've serviced for ten-plus years are the ones where the gutter sizing was right from day one.

A typical commercial gutter project in Texas runs $27–$35 per linear foot for new box or seamless runs with downspouts. Repairs and resealing run $500–$1,000 as a flat band, and through-wall scuppers run $500–$1,000 per opening.

Updated July 2026. Texas commercial market pricing. Priced per linear foot for runs and per opening for scuppers, never per roof square foot.

What every commercial gutter estimate from us includes:

• Full existing drainage assessment and photos
• Scope of work in writing before any contract is signed
• Gutter and downspout sizing to the roof area actually draining into each run
• All penetration and wall flashings tied into the roof system
• Code-required slope and drainage corrections noted, not glossed over

Your final number depends on existing roof condition, deck substrate, drainage requirements, and access complexity: a single-story strip center and a four-story parapet roof with the same linear footage don't price the same. For the full picture, read the commercial gutter cost breakdown →.

Look, you've probably had a vendor go quiet mid-job. Our whole model is built so that doesn't happen to you. Here's how a commercial gutter project runs, start to finish:

1. The site walk and written scope. We measure the runs, check the roof area draining into each one, and photograph the current condition. You get a written scope (system, gauge, sizing, and price) before you commit to anything.
2. Scheduled install under one project manager. One point of contact coordinates the crew we deploy, the material, and the timeline. You get progress you can forward to ownership, not a phone number that stops answering.
3. Final walkthrough and warranty. We walk the finished drainage with you, confirm every downspout and scupper is carrying water, and register the applicable manufacturer and workmanship coverage in writing.

Three steps. The reason it looks simple from your side is that the documentation does the heavy lifting.

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When you hire us, you're working with a documented process and the people who own it, not a call center. On the office side, your estimator writes the scope you'll review, and your project manager stays your single point of contact from the site walk through warranty registration. Field installation is handled by vetted install teams we deploy and supervise; your project manager inspects that work, so accountability sits with the company on your invoice.

Randal Williams is a former commercial high-rise field engineer and Xactimate expert with 15+ years in roofing and construction. He has scoped and documented more than $7 million in insurance claim work across Texas, including single commercial claims above $2 million, supporting property managers and building owners through the claims process as the contractor of record.

That background matters on drainage work specifically. Randal's early career was field engineering on high-rise projects, where he learned that a commercial roof is a system of details: parapet flashing, curb tie-ins, and the drainage that keeps water off all of it. As a GAF GoldElite Commercial Contractor, backed by Elevate Red Shield and UNIFLEX Premier Elite credentials, we install to manufacturer specification and stand behind the connection between your gutters and your roof system. We've completed 5,000+ Texas roofing projects.

We're a strong fit if you:

• Want a written scope of work before anyone touches the roof, every time
• Need photo documentation you can hand to ownership or a carrier
• Manage or own a building in Texas and want one contractor for drainage, repair, and replacement
• Are holding the property long-term and want a partner, not a one-time vendor
• Want a contractor whose COO brings deep insurance claims experience to storm-driven drainage damage

We're probably not the right fit if you:

• Need the lowest bid in the market, a respected priority we can't always match
• Need work to begin within 24 hours with no inspection or documentation
• Have a building under 1,000 sq ft: our minimum scope makes small jobs uneconomical for you
• Have been quoted a price that doesn't allow the drainage to be sized and installed properly

Whether you end up hiring us or someone else, ask every contractor who quotes your building these three questions. The answers tell you more than any review count.

1. "Show me the sizing math before you show me the price." A real drainage scope starts with the roof area draining into each run, not a per-foot number pulled from the last job. If a contractor can't tell you why a run is box instead of seamless, or why a roof needs scuppers, they're guessing, and you'll find out during the next hard Texas rain.

2. "Who's my single point of contact, and will I get photo documentation?" The company on the invoice should give you one project manager from scope through warranty, plus a photo record of the before, the install, and the finished drainage. A contractor who can't name your point of contact is telling you how the job will actually go.

3. "What warranty registers in my name, and who backs the workmanship?" Ask which certification the contractor holds, what manufacturer coverage it unlocks, and who stands behind the labor if a seam opens in year three. If the answer is vague, the warranty probably is too.

• GAF GoldElite Commercial Contractor
• Elevate Red Shield Licensed Contractor
• UNIFLEX Premier Elite Contractor

Industry Membership:

• BBB A+ Accredited
• CTRCA (Central Texas Roofing Contractors Association) Member