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Tremron Roofing: The Los Angeles Owner’s Guide
We stock and install Tremron-compatible roofing components across Los Angeles, with most Tremron tile and paver roof repairs running $470-$2,125 installed and replacement sections available same-day from our local inventory. Homeowners usually discover a problem after a Santa Ana wind event or the first heavy winter rain, when a few shifted or cracked tiles reveal the underlayment beneath. In neighborhoods like Palms and Mar Vista, where Tremron’s flat-profile concrete tiles were popular on 1990s-2010s builds, we see the most calls after water spots appear on ceiling drywall or a single broken tile channels water straight to the plywood deck.
Which Tremron Models This Applies To
Tremron’s roofing line breaks into three families in the Los Angeles market: the flat-profile Slate and Shake series, the barrel-shaped Riviera tiles, and the thick-body Old World collection. The part you need depends on which family is on your roof. Slate and Shake tiles measure roughly 17″ × 12″ with a 3/4″ butt thickness; Riviera barrels run 18″ long with a 9″ exposure; Old World tiles are heavier, at roughly 1-1/4″ thick, and require beefier fastening. Check the underside of a loose tile for the stamped Tremron logo and a date code, or measure the exposure (the visible portion) and the nail flange width. We carry OEM Tremron replacements for all three lines, plus compatible aftermarket tiles from Westlake Royal that match the color profile on most Los Angeles installations from the 2000s. The aftermarket route saves 15-25% on material cost, but color matching is harder on weathered roofs; we photograph your existing tile in daylight and cross-reference against the Tremron archive before quoting. Rowan Construction Group Los Angeles is an independent service provider, not affiliated with Tremron.
Signs Your Tremron Roofing Is Failing

- Cracked or chipped tiles at the rake edge or valley. Tremron concrete is durable but brittle at the edges; thermal cycling in Los Angeles, where roof surfaces hit 140°F in August and drop below 50°F in January, stresses the thin sections first. The crack channels water to the underlayment, which degrades faster than the tile itself.
- Water stains on interior ceilings that track to a single tile location. This usually means the underlayment has failed beneath an otherwise intact tile, common on Tremron roofs where the 30-pound felt was installed without a secondary membrane. The tile looks fine; the waterproofing layer beneath it does not.
- Loose tiles that rattle in wind or slide out of position. Tremron’s interlocking design relies on a precise 10-degree headlap; if the nail flange has corroded or the installer used the wrong fastener (we see drywall screws on older Los Angeles retrofits), the tile loses purchase.
- Efflorescence or white powder on the tile surface. This is mineral leaching from the concrete body, accelerated by Los Angeles’ hard water and occasional acid rain. It signals the tile’s protective surface layer is thinning, which precedes spalling, or surface flaking.
- Sagging at the eave or visible daylight through the roof deck from inside the attic. On heavier Tremron Old World installations, this points to fastener pull-through or inadequate structural support when the roof was originally spec’d. The tile weight, roughly 950 pounds per square, exceeds what standard truss spacing was designed for on some 1980s Los Angeles tract homes.
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AfterReplacement Cost & What’s Included
Tremron roof repair in Los Angeles runs $470-$2,125 per incident, depending on how many tiles are involved and what we find when we lift them. A single broken tile with intact underlayment sits at the low end: remove, match, replace, seal. Multiple tiles with degraded felt or membrane failure push toward the high end, especially if the plywood deck needs patching. Roof replacement on a Tremron system, when the underlayment has reached end of life, ranges $9,440-$23,600 for typical Los Angeles footprints. Our quotes are flat and written: tile count, underlayment type, fastener spec, and labor hours, all itemized. Under Clause 1 of the Haven Standard, that written price is delivered before anyone touches the roof. No change proceeds without a signed change order. The 365-Day Done Right Promise covers the installation, and we document every visit with a photo record you receive by text or email, included as standard.
DIY or Call Us?

A homeowner can safely check for obvious tile damage from a ladder or with binoculars from the ground. What you cannot safely do is walk a Tremron tile roof. Concrete tiles crack under point loads, and the barrel profiles offer no stable footing. Worse, a cracked tile hidden underfoot becomes a trip hazard on a pitched surface. We do not recommend removing tiles yourself; the nail flange is brittle and the interlock is easy to disturb. Underlayment work involves working at height on a degraded surface, which is genuinely dangerous without fall protection and experience. If you see a problem, photograph it from the ground and call us. We’ll diagnose from the photo, confirm on site, and quote in writing. If it’s not written down, it didn’t happen. Call (213) 652-7670 to schedule your free estimate.
FAQs
The concrete tiles themselves last 50-plus years, but the underlayment beneath them typically fails in 20-25 years in Los Angeles’ UV and heat cycles. We see the most replacement calls at year 22-28, when the felt degrades but the tiles still look fine. Call (213) 652-7670 for an exact quote on your roof’s condition - estimates are free.
Concrete tile does not repair well; cracks propagate and surface sealers fail within a season. We replace with a matched tile, or a compatible aftermarket equivalent if Tremron has discontinued the color. Call (213) 652-7670 to schedule your free estimate.
Single-tile swaps take 30-60 minutes on site. Section repairs with underlayment replacement run a half day to a full day, depending on roof pitch and access. We stock common Tremron profiles on our trucks for same-day completion. Call (213) 652-7670 to schedule your free estimate.
We carry Slate, Shake, and Riviera profile replacements in our Los Angeles inventory, plus matching underlayment and corrosion-resistant fasteners spec’d for coastal air. Old World and discontinued colors require a 2-3 day order. Call (213) 652-7670 to confirm availability for your specific tile.
Written by Grant Rowan, Owner, Rowan Construction Group Los Angeles at Rowan Construction Group Los Angeles, serving Los Angeles and nearby areas.







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