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CGI Roofing: The San Antonio Owner’s Guide
We stock and install CGI-compatible roofing components across San Antonio, with most part replacements running between $400 and $1,800 on the smaller side and full section replacements climbing to the Roof Replacement range of $8,000 to $20,000 depending on the square footage and which CGI profile we’re matching. Same-week scheduling is typical once we confirm the part, and our trucks already carry the most common CGI clips, fasteners, and flashing details.
Most San Antonio homeowners discover a CGI part has failed after a storm, not before one. Maybe the roof looks fine from the yard but there’s a soft spot near the ridge, or a ceiling stain showed up in the hallway after a heavy Hill Country downpour. Often the panel itself is fine and what actually failed is a clip, a fastener seal, or a piece of transition flashing. That distinction matters because it means the fix can be smaller and less expensive than a full re-roof, and it’s the first thing Graham Stein and our crew look for when we walk the roof.
Which CGI Models This Applies To
CGI (Coated Glass Inc.) produces standing seam and exposed-fastener metal roofing panels used on residential and light commercial structures across Texas. The product lines we see most often in San Antonio are the CGI Panel-Loc Plus standing seam system and the CGI Corrugated panels popular on Hill Country-style homes and metal outbuildings in areas like Helotes, Boerne, and Timberwood Park. Panel-Loc Plus uses a snap-together seam with concealed clips, while Corrugated uses visible fasteners with neoprene washers. Parts are not interchangeable between these two systems, which is the single most common ordering mistake we correct for homeowners who tried to source parts themselves.
We are an independent service provider, not affiliated with CGI. When we match a part we work from the panel profile, the width (measured flat, edge to edge), the gauge (26 and 24 gauge are the CGI standards), and ideally the original order or color name. OEM parts are the cleanest match; for discontinued colors, we use a quality aftermarket equivalent and confirm the match with a physical sample on the roof before we install anything.
Styles & brands we work with
Signs Your CGI Roofing Is Failing
- Ceiling stain or soft drywall below the roof deck. Water is getting past the panel or flashing somewhere. The most common culprit on CGI roofs in San Antonio is not a failed panel but a failed screw gasket on an exposed-fastener system. The neoprene washer under the screw head dries and cracks after enough Texas sun and heat cycles, then water follows the fastener thread down.
- Loose or lifted panel edges at the ridge or eave. The concealed clips on standing seam panels can lose their bite after repeated thermal expansion. San Antonio’s 100+ degree summers mean the panels grow and shrink daily. Over ten or fifteen years that movement works the clips, especially if the original install spaced them too far apart.
- Corrosion blooming at the panel edge or around a fastener head. This typically shows up after a panel has been scratched to bare metal during installation or a tree limb dragged across it. Once the galvanic coating is breached, the steel below starts to rust. We see this most often on the north-facing roof faces that stay shaded and damp longer after rain.
- Oil-canning that was not there before. Wavy deformation in the panel flat means the panel is moving more than it should, often because a clip has released or the panel is no longer seated in the seam properly. It’s a visual clue that the mechanical connection has degraded even if no water has entered yet.
- Water in the garage or along an exterior wall after wind-driven rain. This points to a flashing failure at a roof-to-wall transition or a pipe penetration. On CGI roofs, the pipe boot is typically a rubber sleeve that simply wears out in the San Antonio sun. It is one of the least expensive parts we replace, and one of the most common sources of interior damage because it fails before anything else does.
See the difference
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AfterReplacement Cost & What’s Included
Roof repair on a CGI system in San Antonio runs $400 to $1,800 for the types of part failures described above, including the part and the labor to set it right. A full Roof Replacement runs $8,000 to $20,000 depending on the roof size, the CGI profile, and the complexity of the trim and flashing work. When the repair is in the isolated fastener or flashing category, most jobs finish in a single visit and cost at the lower end of that range.
What drives the higher end is scaffolding or steep-pitch access, multiple failing penetrations, or the need to color-match and order a specific panel that is not on the truck. You get a written price before any work starts, every time. That written price includes the part, the labor, the drop cloths on your floors if we pass through the house, and the clean-up photo before the crew leaves the driveway.
DIY or Call Us?
A homeowner can safely do two things on a CGI roof from the ground: mark the locations where you see corrosion or lifted panels using a photo so you can point us to the exact spot, and check the attic for water staining after a storm. What you should not do is get on the roof to pull a screw or attempt to re-seat a panel. Metal roofing is slick, a standing seam panel under tension can spring, and a misplaced foot on the wrong spot can crease a panel permanently and turn a $400 repair into a full panel replacement. If the pitch is above a 4/12, stay off it entirely and call us.
If the failure is a visible pipe boot or a single missing screw near the eave, our crew will handle it in one visit. Call (432) 233-0976 and Graham will talk you through what we saw in the photos and what the fix is likely to cost before we schedule.
FAQs
CGI steel panels themselves carry a 25-40 year lifespan, but the parts around them fail earlier: screw gaskets and pipe boots typically last 8-12 years in San Antonio before the heat and UV break them down, and concealed standing seam clips generally outlast the panels when installed correctly. If your CGI roof is 10 to 15 years old and you have a leak, the smart money is on a gasket or boot, not the steel. Call (432) 233-0976 and we will help you figure out which one before you spend a dollar.
Small screw hole elongation or a minor dimple can usually be repaired with a larger fastener and a fresh sealing washer, but a creased panel, a rusted-through section, or a torn seam should be replaced because those failures compromise the panel’s waterproofing. We will tell you plainly which category you are in. Call (432) 233-0976 for an exact assessment.
Most single-part replacements, like a pipe boot or a run of fasteners, take one to three hours on the roof and one visit to your San Antonio home. Panel replacements take longer if the color has to be ordered, typically five to ten business days from order to install. We will put the timeline in your written price so there is no waiting game after the fact.
Our trucks carry the most common CGI fasteners, neoprene washers, pipe boots, and standard trim flashing for the San Antonio market. Odd-sized panels or discontinued colors are special ordered and we will show you the order confirmation and the lead time before you pay anything. For anything we don’t carry, we can still source it quickly through our network of suppliers.
Written by Graham Stein, Owner, Elmstead Remodeling San Antonio at Elmstead Remodeling San Antonio, serving San Antonio and nearby areas.
