Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Tremron Roofing: The Oakland Owner’s Guide
Tremron roof tile repair in Oakland typically runs $600-$2,500 for tile replacement and membrane patching, depending on how many tiles are cracked and whether the underlayment beneath has failed. We stock Tremron-compatible concrete and clay tiles in common Oakland profiles, and most repairs are completed in a single visit. Most homeowners notice the problem after a winter storm, when water spots appear on the ceiling or they find broken tiles in the yard.
Which Tremron Models This Applies To
Tremron manufactures concrete roof tiles in several profiles that were widely installed across Oakland from the mid-1990s through the 2010s building boom. The most common we encounter are the Old Country barrel tile, the Slate flat profile, and the Shingle interlocking design. Each has a specific fastening pattern and overlap dimension. To identify yours, check the raised Tremron stamp on the tile underside, usually found near the tail edge, or measure the exposed face: Old Country runs 17 inches, Slate 13 inches, Shingle 12.5 inches.
The compatibility gotcha in Oakland’s inventory is that Tremron revised its Slate mold in 2008, changing the locking lug geometry. Pre-2008 and post-2008 Slate tiles are not interchangeable without shimming the batten, which we document in the photo record. For OEM replacement, we source through Tremron’s West Coast distribution in Fontana, with typical lead times of 5-7 business days. For faster turnaround, we stock color-matched aftermarket equivalents from Eagle Roofing and Boral that meet the same ASTM C1492 concrete tile standard. The decision depends on whether your HOA requires exact OEM match, which several Oakland Hills associations do.
Signs Your Tremron Roofing Is Failing

- Cracked or broken tiles after minor wind. Concrete tiles become brittle as surface glaze weathers off; in Oakland’s salt-air exposure near the bay, this accelerates after 20-25 years. One cracked tile often means neighbors are close behind.
- Water stains on ceiling drywall, especially near valleys or penetrations. The #30 felt underlayment beneath Tremron tiles has a 20-30 year service life in California’s UV cycles. When it degrades, the tile itself still looks fine while water migrates underneath.
- Granular debris in gutters that matches your tile color. This is the surface finish sloughing off, exposing porous concrete to moisture absorption. Freeze-thaw in Oakland’s colder microclimates, like the hills above Piedmont, speeds the decay.
- Visible daylight through the roof deck from inside the attic. This indicates displaced tiles, failed fastening, or rotted battens, often from foot traffic during satellite dish or solar panel installation.
- Sagging or wavy roof plane visible from the street. The structural support beneath Tremron tiles, typically 1×4 wood battens on 12-inch centers, can rot from prolonged moisture intrusion. This is past a simple tile swap.
Before
AfterReplacement Cost & What’s Included
Our Oakland Tremron tile repair pricing follows the ranges below. Every quote is a flat written price with line-item scope, delivered before work starts, per Clause 1 of the Haven Standard.
| Service | Price Range | Typical Scope |
|---|---|---|
| Tile replacement (localized, 1-10 tiles) | $600-$1,200 | Remove damaged tiles, replace underlayment patch, install new tiles, seal penetrations |
| Tile replacement (moderate, 10-50 tiles) | $1,200-$2,500 | Sectional underlayment replacement, batten repair as needed, full tile replacement in affected area |
| Full underlayment replacement with tile salvage | $8,000-$20,000 | Remove and reset existing Tremron tiles, replace all underlayment, inspect and replace damaged battens |
What drives the range: tile accessibility (steep pitches above 6:12 require roof jacks and safety rigging), whether the original battens are salvageable, and whether we are matching discontinued colors. We pull permits when required by Oakland’s Building Services Division, which is standard for any repair exceeding 100 square feet or involving structural elements. The 365-Day Done Right Promise covers all Tremron repair work, and you receive the documented photo record before we leave.
DIY or Call Us?

There is one thing a homeowner can safely check: walk the perimeter with binoculars and note cracked or displaced tiles, or photograph gutter debris. Do not walk the roof. Concrete tiles crack under point loads, especially aged ones, and steep Oakland pitches common in the Montclair and Oakmore neighborhoods are genuinely hazardous without fall protection.
Where DIY goes wrong: tile replacement requires matching the exact profile and overlap, installing the correct corrosion-resistant fastener for the batten material, and verifying that the underlayment beneath is still intact. We have repaired homeowner attempts where mismatched tiles created reverse laps that funneled water into the attic. Underlayment work involves removing and resetting large tile fields without breakage, which demands experience and the right foam-padded storage on the ground. For anything beyond binocular inspection, call (628) 300-4376 and we will schedule a free estimate with written scope and price.
FAQs
Tremron concrete tiles are rated for 50 years, but the underlayment beneath them typically fails in 20-30 years under Oakland’s UV exposure and occasional freeze-thaw in the hills. The tiles themselves often outlast two underlayment cycles. Call (628) 300-4376 for an inspection that checks what’s actually failing - estimates are free.
Surface cracks can be sealed with compatible polymer cement for temporary water protection, but this is a stopgap. A cracked tile has compromised structural integrity and will fail again, usually within one to two rainy seasons. We quote replacement with the understanding that a proper fix lasts. Call (628) 300-4376 for a written price on either approach.
Localized repairs of 1-10 tiles are typically completed in a half day. Moderate section repairs run one to two days. Full underlayment replacement with tile salvage takes four to seven days depending on roof complexity and Oakland permit inspection scheduling. We specify the timeline in the written scope before work starts.
We carry common Oakland Tremron profiles - Old Country, Slate, and Shingle - in the most prevalent color blends: Antique Red, Charcoal, and Sierra Brown. Exact color matches for discontinued or custom blends require a distribution order with 5-7 day lead time. We verify stock availability during the estimate visit so there are no surprises. Call (628) 300-4376 to confirm.
Rowan Construction Group Oakland is an independent service provider and is not affiliated with Tremron. We also stock and install parts for KraftMaid cabinetry, Cambria countertops, and Silestone surfaces.
Measure twice, document everything, then build. That is how Grant Rowan has run jobs across the East Bay since 2007, from Fruitvale structural retrofits to full ground-up builds in the Oakland Hills, and it is how we handle every Tremron repair we quote.
Written by Grant Rowan, Owner, Rowan Construction Group Oakland at Rowan Construction Group Oakland, serving Oakland and nearby areas.







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