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Tremron Roofing: The Mission Viejo Owner’s Guide
We stock and install Tremron-compatible concrete roof tiles and underlayment systems in Mission Viejo, with most repairs running $400-$1,800 and full replacements at $8,000-$20,000 depending on square footage and decking condition. Tremron’s West Coast distribution center sits in Southern California, so parts availability is typically same-week, not the multi-week wait you see with East Coast manufacturers. Most Mission Viejo homeowners spot the problem first as a water stain on a cathedral ceiling or a tile fragment in the yard after a Santa Ana wind event.
Which Tremron Models This Applies To
Tremron’s concrete tile lines fall into three series relevant to Mission Viejo roofs: the Slate Profile (low-rise, flat), the Barrel Profile (high-rise, S-curve), and the Flat Shake (textured, dimensional). The part you need depends on which series is on your roof, and the identifying mark is stamped on the underside of intact tiles near the tail edge. We see a lot of the Slate Profile in the Casta del Sol area, where the HOA specified earth-tone blends back in the 1990s builds.
OEM Tremron tiles match color lots from specific production runs, and the dye lots shift over years in California UV. We keep a selection of current-production Tremron tiles on hand, but for older roofs we often source from Tremron’s “custom blend” service or use a color-matched aftermarket equivalent from Eagle Roofing when the original lot is exhausted. The aftermarket decision hinges on whether your roof has a standard color or one of Tremron’s discontinued regional blends. For underlayment replacement, we use either Tremron-specified ASTM D226 Type II felt or a synthetic equivalent that exceeds the original spec, depending on what the decking condition allows.
Signs Your Tremron Roofing Is Failing

- Cracked or broken tiles at the rake edges or valleys. Tremron concrete tiles are durable, but the installation nailing pattern leaves the last two inches of rake tiles unsupported. Wind uplift cracks them at the nail line, and water enters through the gap before you ever see interior damage.
- Water stains on drywall that track to the field of the roof, not a penetration. This usually means the underlayment beneath the tile has degraded. Tremron tiles outlast their felt underlayment by decades in Mission Viejo’s sun, and the tile itself can look fine while the waterproofing layer underneath has turned to dust.
- Granule or color wash accumulating in gutters. On Tremron’s color-through tiles this signals surface erosion; on coated tiles it means the acrylic finish is failing. Either way, the tile’s protective skin is gone and freeze-thaw or salt air will accelerate deterioration.
- Visible daylight through the roof deck from inside the attic. This is almost always failed underlayment at a fastener penetration or a slipped tile at the headlap. In Mission Viejo’s hillside construction, the attic inspection is complicated by tight crawl spaces, but it’s the only way to catch this before the drywall does.
- Sagging or soft spots when walking the roof. Concrete tile is heavy, around 950 pounds per square. If the substrate plywood or skip sheathing has absorbed moisture, the structural layer fails before the tile does. Walking a compromised roof is how we find it, and it’s also how a homeowner gets hurt.
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Roof repair in Mission Viejo runs $400-$1,800 for Tremron tile work, depending on how many tiles, whether the underlayment is involved, and whether the decking needs patching. Full Tremron roof replacement on a typical Mission Viejo home falls between $8,000 and $20,000, driven by square footage, single versus double-layer tear-off, and whether we find compromised fascia or soffit once the tiles come up.
Our written quote itemizes the Tremron tile cost per square, underlayment by type, decking replacement by the sheet, and labor as a flat line. Under Clause 1 of the Haven Standard, that price is fixed before work starts; if we find additional damage, the change order is written and signed before we proceed. Every roof job carries our 365-Day Done Right Promise and a documented photo record of the deck condition before and after.
DIY or Call Us?

A homeowner can safely check the gutter line for broken tile fragments and the attic for daylight or water stains. Do not walk a concrete tile roof. Tremron tiles crack under point loading, and the slope-plus-height combination on most Mission Viejo homes makes a fall genuinely dangerous. The underlayment replacement requires removing courses of tile, which means understanding the headlap pattern and the batten spacing specific to your Tremron series. Get it wrong and you’ve got a $400 repair that becomes a $12,000 re-roof.
We carry Tremron-compatible tiles, underlayment, and fasteners on our trucks for Mission Viejo calls. If you’re matching a specific color lot, we’ll pull a sample tile and run it against current production before we quote. Call (657) 297-4635 to schedule your free estimate.
FAQs
The tiles themselves last 50-plus years; the underlayment beneath them typically fails in 20 to 30 years under Orange County UV and heat cycling. We see the underlayment go first in south-facing exposures above the Mission Viejo Lake area, where reflected light accelerates degradation. Call (657) 297-4635 for an exact quote on replacement - estimates are free.
Concrete tile doesn’t repair in place; a cracked tile is removed and replaced. For hairline cracks in non-critical locations, some homeowners use roofing cement as a temporary seal, but that traps moisture and voids any warranty coverage. We replace with a matched tile and inspect the underlayment beneath while the course is open. Call (657) 297-4635 for an exact quote - estimates are free.
A localized repair, say a valley or a wind-damaged section, takes one day. Full underlayment replacement with tile salvage and reinstallation runs three to five days on a typical Mission Viejo home, depending on square footage and whether we hit decking that needs replacement. We don’t quote speed; we quote a completion date and meet it. Call (657) 297-4635 to schedule.
We stock Tremron-compatible concrete tiles in current production colors, matching underlayment, and corrosion-resistant fasteners rated for coastal air. For discontinued color blends, we source through Tremron’s custom department or match to Eagle Roofing equivalents. We don’t promise a specific tile until we’ve seen your roof or a sample. Call (657) 297-4635 and we’ll confirm availability before we schedule.
Rowan Construction Group Mission Viejo is an independent service provider and is not affiliated with Tremron. We also stock parts for and install KraftMaid, Cambria, and Silestone products across our trades.
Measure twice, then measure again - the lumber yard doesn’t give refunds.
Written by Grant Rowan, Owner, Rowan Construction Group Mission Viejo at Rowan Construction Group Mission Viejo, serving Mission Viejo and nearby areas.







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