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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roofing in Agoura Hills, CA | Mercer Roofing Co Woodland Hills
We provide independent CertainTeed roofing service across Agoura Hills, from Old Agoura ranch homes to newer Mediterranean estates up in Morrison Ranch. The one thing that makes our CertainTeed work different here is that we know Agoura Hills WUI fire codes inside and out, so your shingle replacement or repair passes inspection the first time. If you need our Roof Repair in Agoura Hills or a full replacement, call (341) 217-2677 for a written estimate before any work starts.
Why Agoura Hills Residents Choose Us for CertainTeed Service
We’ve been working with CertainTeed shingle and tile systems long enough to know which model lines hold up on Agoura Hills hillsides and which ones need closer watching after a Santa Ana event. Grant Whitlock, our owner, grew up in Los Angeles and learned the trade through the construction technology program at Los Angeles Trade-Technical College. He’s been putting roofs on Valley homes for well over a decade, and he’ll tell you straight whether a repair buys you five more years or whether you’re better off replacing the whole field. We source factory-matched CertainTeed components when they’re available, and when a CertainTeed-branded piece is discontinued, we use equivalent aftermarket flashing or vent boots that meet the same spec. CertainTeed sales & service is what we do day in and day out, but we’re an independent contractor, not a manufacturer affiliate. Every technician who shows up at your Agoura Hills door is background-checked, uniformed, and photo-badged, and we send their name and photo before they arrive.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Agoura Hills
CertainTeed makes a solid shingle, but Agoura Hills has a way of finding the weak spots. Here’s what we see most often:
- Wind lift at ridge and hip caps on Landmark shingles. Santa Ana winds will find any cap nail that’s overdriven or seated off the nail line. The cap lifts, wind gets underneath, and suddenly you’ve got shingles peeling off the ridge. We re-nail caps by hand, seating each nail on the line, not through it.
- Brittle cracking in older Presidential Shake tabs. Decades of dry Agoura Hills heat bake the polymer tabs until they lose flexibility. When they crack, granules wash off and water finds the underlayment. This shows up most often on south-facing slopes that catch full sun.
- Chimney and skylight flashing separation. Thermal movement on Agoura Hills homes with original composition shingles pulls flashing away from the chimney or skylight curb. The sealant dries, the metal expands and contracts, and the gap becomes a leak path during winter rains.
- Organic mat deterioration in early-2000s Hallmark shingles. CertainTeed’s organic mat shingles from that era cup and blow off in high wind, especially on unsheltered hillside exposures. If your Agoura Hills home has Hallmark shingles from that period, we’ll inspect the whole field before quoting a repair.
- Valley leaks on older composition roofs. Agoura Hills winter rains expose worn valley metal and deteriorated underlayment. We repair valleys when the surrounding shingle life is still solid, and we’ll tell you honestly when it’s not.
CertainTeed Service in Agoura Hills: What Local Conditions Mean for Your Roof
Agoura Hills sits inside a Wildland-Urban Interface zone, and the building codes reflect it. Class A fire-rated roof coverings are required here, along with ember-resistant venting. That matters when you’re replacing original wood shake in Old Agoura with CertainTeed Presidential Shake. You can’t just tear off the old shake and nail down new composite, not if you want to pass inspection. The job often requires adding eaves and gable-end mesh and non-combustible underlayment. That requirement isn’t present in Thousand Oaks or Calabasas. In Agoura Hills, it’s part of the permit package. We know what the inspector is going to look for because we’ve done these replacements on Old Agoura ranch homes and hillside estates throughout the area, and we build the WUI compliance into the quote from day one.
CertainTeed Models & Products We Service in Agoura Hills
We work on the CertainTeed lines that actually show up on Agoura Hills roofs. CertainTeed Landmark architectural shingles are the most common, and we keep matching ridge caps and starter strips on hand for fast turnaround on repairs. CertainTeed Presidential Shake is our go-to recommendation for Old Agoura homeowners who want the cedar look without the fire risk. CertainTeed Grand Manor works well for upscale hillside homes where weight reduction on tile-to-composite conversions matters. And CertainTeed Cedar Impressions polymer shakes are a fire-resistant choice that fits the rustic aesthetic of the older neighborhoods. For repairs, we source factory-matched components where available and use equivalent aftermarket flashing when CertainTeed-branded pieces are discontinued.
See the difference
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AfterCertainTeed Service Pricing in Agoura Hills
Every CertainTeed job in Agoura Hills starts with a written line-item quote, so you know exactly what you’re paying before anyone picks up a nail gun. Here’s what you can expect:
- Shingle replacement (repair): $350 – $850 depending on the number of shingles and the slope. Ridge cap repairs run $250 – $600 on average.
- Flashing repair: $400 – $1,200 for chimney or skylight flashing, depending on access and whether we’re replacing the metal or re-sealing.
- Tile underlayment replacement: $3.50 – $6.00 per square foot for tear-off, new underlayment, and tile reset on Mediterranean-style Agoura Hills homes.
- Full CertainTeed Landmark re-roof: $12,000 – $22,000 for a typical 2,000 – 2,500 sq ft Agoura Hills ranch, depending on tear-off layers and decking condition.
Your free estimate includes a full roof inspection and a written breakdown. Call (341) 217-2677 to schedule one, and we’ll give you a price that doesn’t change once work starts.
Serving Agoura Hills, CA - Our Local Coverage Area
We’re our Roofing Company in Agoura Hills, based right here and knowing this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Agoura Hills
Yes. Presidential Shake carries a Class A fire rating, but the full assembly matters in Agoura Hills. We add ember-resistant venting, non-combustible underlayment, and eave and gable-end mesh as part of the replacement so the whole system passes WUI inspection. Call (341) 217-2677 and we’ll walk you through what the permit requires for your specific address.
We inspect the entire ridge and hip line first, then re-seat or replace every affected cap shingle with hand-driven nails on the nail line. We also check the underlying decking for moisture before installing new shingles. Wind damage in Morrison Ranch usually means the original install was rushed, and we fix the root cause, not just the visible tear.
We repair the valley if the surrounding shingles have at least five to seven years of life left. If the shingles are brittle, granule-bald, or cupping, we’ll recommend replacement and show you the condition on the roof so you can decide with your own eyes. The goal is never to sell you a roof you don’t need. Estimates are free; call (341) 217-2677 for an exact price.
Yes. Grand Manor is significantly lighter than clay or concrete tile, which reduces structural load on older Agoura Hills framing. It’s a Class A fire-rated shingle, so it satisfies WUI requirements while giving you a shake-like profile that fits the hillside look. We handle the full conversion, including tile tear-off, decking inspection, and underlayment.
We use CertainTeed WinterGuard or an equivalent high-temperature self-adhered underlayment in valleys and at eaves, and a synthetic or felt underlayment over the decking depending on your tile type and existing assembly. The combination gives you a secondary moisture barrier for winter rain and helps block ember entry at the eaves. Call (341) 217-2677 for a written breakdown on your specific roof.
Service Areas Near Agoura Hills
We cover Agoura Hills and the surrounding communities, including Agoura Hills service area homes in Old Agoura, Morrison Ranch, and Liberty Canyon. We also serve CertainTeed service in Woodland Hills, CertainTeed service in Simi Valley, West Hills, and Topanga. If you’re in the Conejo Valley or western San Fernando Valley, we’re close by.
Book Your CertainTeed Service in Agoura Hills Today
A roof should be the last thing you worry about. Let’s make sure it is. Call (341) 217-2677 for a free written estimate on any CertainTeed repair or replacement in Agoura Hills. We’ll send a background-checked, photo-badged technician who shows up when we say they will.
Written by Grant Whitlock, Owner at Mercer Roofing Co Woodland Hills, serving Agoura Hills since 2000.