Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Oldcastle Roofing: The San Antonio Owner’s Guide
If you’re searching for Oldcastle roofing parts in San Antonio, you’ve probably got a leak, a cracked tile, or a flashing failure that’s letting water where it shouldn’t be. We stock and install Oldcastle-compatible roofing components, and most San Antonio homeowners pay between $400 and $1,800 for a repair, or $8,000 to $20,000 if the damage is widespread enough to justify a full roof replacement. The part you’re looking for is almost certainly in our inventory, and with a live person answering the phone around the clock, you can know today what it’ll cost and when we can put it on your roof.
Most owners discover an Oldcastle roofing failure the hard way: a brown stain spreading across the ceiling after a Hill Country thunderstorm, or a tile that slid off during a February wind event and is now sitting in the flower bed. Sometimes it’s quieter than that, just a musty smell in the attic that won’t go away. Whatever tipped you off, the fix starts with matching the right part to the right roof, and that’s where we come in.
Which Oldcastle Models This Applies To
Oldcastle has manufactured roofing products under several lines over the years, and the parts aren’t always interchangeable. The most common product families we work on in San Antonio are Oldcastle’s concrete roof tile lines (including their flat and S-profile tiles), their APAC shingle lines from the Texas and Gulf Coast plants, and their commercial-grade built-up roofing components. If your roof was installed in a San Antonio subdivision built in the 1990s or 2000s, there’s a good chance the original tile or shingle came from an Oldcastle facility, because their Texas distribution was deep in this market.
Here’s the compatibility gotcha most people don’t know: Oldcastle concrete tiles have shifted in profile depth and interlocking geometry across production runs, so a tile that looks identical from the ground can be off by an eighth of an inch at the side lap. We measure the exposed width, the profile depth, and the water channels on the underside before matching anything, because guessing gets you a tile that rattles in the wind. For shingle lines, the weight class matters, Oldcastle’s three-tab and dimensional lines don’t mix cleanly with other manufacturers’ products at the same exposure. We carry OEM Oldcastle parts where they’re still available through regional distribution, and for discontinued lines we use aftermarket equivalents matched to the tile weight spec, usually 900 to 1,100 pounds per square for their standard concrete profiles. Mason Remodeling Co San Antonio is an independent service provider and isn’t affiliated with Oldcastle, but we’ve handled enough of their products to know what fits and what doesn’t.
Styles & brands we work with
Signs Your Oldcastle Roofing Is Failing
- Water stains on ceilings or upper walls. In San Antonio’s clay-heavy soil, the real problem is often a cracked tile or a failed flashing joint letting rainwater follow the decking down to the interior. Ignoring it means deck rot, and that repair bill climbs quickly.
- Concrete tiles sliding or sitting crooked. This usually means the fastening clips or nails have corroded, which San Antonio’s humidity and alkaline air accelerate. A shifted tile exposes the underlayment to UV and rain, and that underlayment fails next.
- Granule loss in gutters or at downspout outlets. Oldcastle shingle lines shed granules as they age, and by the time you see them piling up at the downspout elbow, the shingle surface is thinning enough that the fiberglass mat is showing through. That’s a replace-soon signal, not a wait-and-see.
- Curling or lifting shingle corners. The Texas sun bakes shingles from above while attic heat cooks them from below. When Oldcastle shingles start curling, the adhesive strip has released, and the wind-driven rain we get during spring fronts will find its way underneath.
- Flashing pulling away from chimneys or vent pipes. The metal expands and contracts with San Antonio’s temperature swings, and the old mastic dries out. What starts as a hairline gap in August becomes a two-inch opening by the next March storm season.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For Oldcastle roofing repairs in San Antonio, expect to pay between $400 and $1,800 depending on what failed and what it takes to reach it safely. A simple single-tile replacement on a one-story roof with good access lands at the low end, while re-flashing a chimney, replacing a section of damaged decking, or matching tiles on a steep two-story roof pushes toward the upper end because labor and safety setup dominate the cost.
A full Oldcastle-compatible roof replacement on a typical San Antonio home runs $8,000 to $20,000, and the spread comes down to roof size, pitch, whether the old underlayment needs full removal, and whether you’re going back with concrete tile or a comparable asphalt system. Here’s the transparency we bring to every job: you get a written price before any work starts, with parts and labor separated line by line. No change orders, no surprise add-ons at the end. And the work is covered by our 365-Day Done Right Promise, meaning if something isn’t right within a year of completion, we come back and fix it at no cost to you. Call (254) 269-5071 for a free estimate and we’ll put the exact number in writing.
DIY or Call Us?
There’s an honest split here. You can safely do the inspection part yourself: stand in the yard with binoculars and look for shifted tiles, missing shingles, or flashing that’s pulling away, and check the attic for daylight coming through the decking. What you shouldn’t do is get on an Oldcastle tile roof. Concrete tiles crack under foot traffic, the surface is slick with San Antonio’s morning dew, and a cracked tile you didn’t notice becomes a cracked tile plus a broken hip and a hole in the decking.
The other place DIY goes wrong is matching. We’ve pulled off plenty of “fixed” tiles that were the wrong profile, glued down with construction adhesive, and leaking worse than the original. Roofing isn’t a place to save money by guessing. If you’re unsure what you’ve got, call (254) 269-5071 and describe what you see. A live person answers, and we’ll tell you straight whether it’s a repair or a replacement, and what it’ll cost.
FAQs
Oldcastle concrete tile typically lasts 30 to 50 years in San Antonio, while their asphalt shingle lines run 15 to 25 years depending on attic ventilation and sun exposure. The underlayment beneath either system usually fails first, around the 20-year mark, which is why leaks often appear while the tile or shingle still looks fine from the ground. Call (254) 269-5071 and we’ll help you figure out what layer actually failed.
Yes, most Oldcastle roofing issues in San Antonio are repairable: single tile swaps, flashing replacements, shingle patching, and pipe boot renewals are all common and cost a fraction of a full roof. Replacement only becomes the right call when the underlayment is shot, the decking is compromised, or the tile line is discontinued and matching is impossible. We’ll tell you which situation you’re in, and the estimate is free.
Most repairs, tile swaps, flashing rework, shingle patches, take half a day to a full day on site. If the decking underneath needs drying or replacement, or if we’re matching a discontinued tile, you’re looking at two to three days. We’ll give you a written schedule with your written price, and the crew you’ll see is the crew whose names and photos you’ll receive before anyone shows up.
We stock the most common Oldcastle-compatible tiles, shingle bundles, flashing profiles, and sealants on our trucks and in our San Antonio shop. Functional parts for discontinued lines sometimes require a regional distributor order, which adds a day or two, but we’ll tell you that before you commit to the job. We also keep parts for KraftMaid, Cambria, and Silestone projects when roofing work turns into a bigger exterior refresh.
Written by Isaac Pruett, Owner, Mason Remodeling Co San Antonio at Mason Remodeling Co San Antonio, serving San Antonio and nearby areas.
