How to Choose a Metal Roofing Contractor in Houston

A metal roof can be one of the longest-lasting roofs you put on a house in the Houston area. It handles UV, heavy rain and high wind well, and many panels carry strong paint coating warranties. None of that matters if the panels are installed wrong.

Most metal roof problems we see around Pearland trace back to installation, not the metal itself: fasteners driven at the wrong angle, panels with no room to expand, flashing that was bent on site with no plan for water. A shingle crew that "also does metal" may not know these details. That is why the first question is not which panel to buy. It is who is putting it on.

If you are still deciding between materials, start with our breakdown of metal roof vs. shingles in Houston. If you have settled on metal, the next job is picking the crew.

There are 2 main types of residential metal roofing, and they are installed very differently.

Any contractor worth hiring can explain both and tell you why one fits your roof better. Roof pitch, budget, how long you plan to stay in the house and whether you are in a windstorm area all play a part. If a company only sells one type and waves off the other, ask why.

Ask to see finished jobs of the exact system they are quoting, and look for close-up photos of seams, ridges and valleys rather than wide shots from the street. Our project gallery shows the kind of detail you want.

Metal panels are sold by gauge. A lower number means thicker steel. Residential panels are commonly 24 or 26 gauge, and thicker panels tend to resist dents and flexing better. Your contractor should write the gauge on the estimate, along with the panel profile and the manufacturer.

The attachment details matter just as much:

• Clips (standing seam). Ask whether they use fixed clips, floating clips or both, and where. Floating clips let the panel move with heat, which counts for a lot on long runs under a Texas summer sun.
• Fasteners (exposed fastener). Screws should be the type the panel maker specifies, with sealing washers, driven straight and snug. Overdriven screws crush the washer. Underdriven screws leave a gap. Both can leak.
• Spacing. Fastener and clip spacing often needs to be tighter for wind ratings. In the TWIA catastrophe area (all of Brazoria and Galveston counties, plus the part of Harris County east of State Highway 146), the roof generally has to meet the windstorm building code.

If your home is in that area, ask the contractor how they handle the windstorm inspection. At Stone Castle we install to the windstorm code and coordinate the required inspection when a project needs one. Our guide to WPI-8 windstorm certification in Pearland explains the process.

Metal sits directly on top of the underlayment, and the underlayment is your backup layer if water ever gets under a panel. Metal roofs can also run very hot. Ask for an underlayment that the panel manufacturer approves for metal, often a high-temperature synthetic or a high-temp self-adhered membrane in valleys and at low-slope sections. Standard felt can break down under hot metal over time.

Then ask about trim and flashing. Skilled metal installers show it in these details:

• Ridge and hip caps with closures that keep out wind-driven rain and pests
• Valleys built so water flows across the metal, not into it
• Wall and chimney flashing that is layered correctly, not caulked in place
• Pipe boots rated for metal and sized for the panel profile
• Eave and rake trim that locks panels in and resists wind uplift

A contractor who can walk you through these details on a drawing, or standing in your yard pointing at your roof, has done this many times.

Oil canning is visible waviness in the flat part of a metal panel. It is mostly cosmetic and usually does not affect performance, but it surprises plenty of homeowners after install.

It can come from the steel coil itself, uneven roof decking, panels fastened too tight to move, or handling damage. A contractor who installs metal regularly brings up oil canning before the job, not after you notice it. They can reduce it by checking the deck for flatness, using panels with striations or stiffening ribs, choosing a heavier gauge, and installing clips so panels can move. Be wary of anyone who promises it will never happen. No honest installer can guarantee that.

There are usually 3 separate warranties on a metal roof, and you should get the terms of each in writing:

1. Panel or material warranty from the manufacturer, covering defects in the metal.
2. Paint or coating warranty, often covering chalking and fading within set limits. Coatings vary, so ask which finish is on your panel and what the warranty covers.
3. Workmanship warranty from the contractor, covering how it was installed.

Read the fine print. Some manufacturer warranties require specific underlayment, fasteners or installer training to stay valid. Ask the contractor to confirm in writing that their install method meets the manufacturer's requirements. Also ask what happens if the contractor goes out of business, since a workmanship warranty is only as good as the company behind it.

Bring this list to every estimate:

• How many metal roofs did your crew install in the last year, and can I see a few?
• Do you use your own crews or subcontractors for metal?
• Which system, panel profile and gauge are you quoting, and why?
• What underlayment, clips and fasteners will you use?
• How will you flash my walls, chimney, valleys and pipes?
• Does my address need a windstorm inspection, and who coordinates it?
• Can I see your certificate of insurance?
• What warranties come with this, and are they in writing?

For a longer list, see our questions to ask a roofer before hiring.

Red flags to walk away from:

• No local address or a company that showed up after a storm
• A quote with no panel gauge, profile or manufacturer listed
• Pressure to sign the same day
• Asking for full payment before materials arrive
• No proof of insurance
• Vague answers about flashing, or "we just caulk it"

Texas does not have a statewide roofing license, so you cannot rely on a state license check. That makes insurance proof, local references and a detailed written contract even more important. We cover the full vetting process in how to find a trustworthy roofer in Houston.

Stone Castle Roofing installs residential and commercial metal roofing across Pearland and Greater Houston, and our team brings 20+ years of combined roofing industry experience. We will tell you whether standing seam or exposed fastener fits your home, and if shingles make more sense, we will say so. You can also see how a full roof replacement works with us from start to finish.

Start with a free roof inspection so we can measure, check your decking and give you a written scope. Contact us to book it, or call (281) 250-1265. We serve Pearland, Houston and the surrounding service areas.