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IKO Roofing: The Sherman Oaks Owner’s Guide
IKO shingle repair and replacement in Sherman Oaks typically runs $400-$1,800 for standard asphalt shingle work, with full IKO roof replacements starting around $8,000. We stock IKO-compatible ridge caps, starter strips, and architectural laminate shingles on our trucks, and most Sherman Oaks repairs are quoted and started within a day or two. Most homeowners first notice a problem after a Santa Ana wind event or the first heavy winter rain, when a lifted shingle or water stain on the ceiling makes it obvious something shifted up top.
Which IKO Models This Applies To
IKO’s residential line breaks into three tiers you’re likely to encounter in Sherman Oaks: the traditional 3-tab Marathon Plus, the architectural laminate Cambridge series (Cambridge Cool Colors included), and the premium Armourshake designer line. The part you need depends on which layer failed. Ridge cap shingles are not interchangeable across series; a Cambridge ridge cap is thicker and has a different exposure dimension than Marathon Plus, and using the wrong match voids the wind warranty.
To identify your shingle, check the back of a loose shingle or the bundle wrapper if you have attic storage. Look for the IKO lot number and the ASTM D7158 wind rating. For Cambridge and Armourshake, the nailing zone is a reinforced fabric strip; if your roofer nailed outside that zone, the shingle will lift in Sherman Oaks’ 50-70 mph Santa Ana gusts even if it looks fine from the ground. We carry OEM IKO ridge caps and starter strips, plus aftermarket equivalents from Atlas and CertainTeed where the color match is closer to a faded 2015 install. Measure twice, write it down, then build it. That’s how we avoid a second trip for the wrong bundle.
Signs Your IKO Roofing Is Failing

- Granule loss in gutters or downspout splash blocks. IKO’s ceramic granule coating protects the asphalt core from UV; once it’s gone, the shingle bakes and cracks. In Sherman Oaks’ high-sun exposure, south-facing roofs show this first, often within 12-15 years on a 25-year shingle.
- Lifted or cupped shingle tabs, especially along the rake edges. This is almost always an installation issue: nails placed too high, too few nails per shingle, or the wrong nail length for the deck thickness. The Santa Ana winds finish what a rushed nail pattern started.
- Cracked or missing ridge cap shingles. Ridge caps take the most wind and heat. IKO’s pre-cut ridge caps are 12 inches wide; if you see the underlayment or gap light through, water is already finding its way to the ridge board.
- Interior water stains that appear after rain but dry quickly. This points to a slow leak at a shingle overlap or a failed pipe boot, not a gaping hole. The water travels along the deck before dripping, so the stain location rarely matches the roof leak directly above.
- Sagging or soft spots when walking the roof. This is deck damage, not shingle failure. In Sherman Oaks, we see this where a prior owner installed IKO architectural shingles over two layers of old 3-tab without stripping to the deck. The weight plus moisture rot the plywood from below.
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AfterReplacement Cost & What’s Included
Here is what IKO roofing work costs in Sherman Oaks, with parts and labor separated in our written quotes:
| Scope | Price Range |
|---|---|
| IKO shingle repair (localized, under 100 sq ft) | $400 - $1,800 |
| IKO ridge cap replacement (full ridge) | $800 - $2,200 |
| IKO roof replacement (asphalt shingle, standard home) | $8,000 - $20,000 |
| IKO starter strip and drip edge replacement | $600 - $1,500 |
The range depends on three things: how many layers we strip (each adds dump fees and labor), whether the deck needs plywood replacement (common on 1970s Sherman Oaks builds with 3/8-inch decking), and the IKO series you select. Cambridge architectural runs higher than Marathon Plus, and Armourshake is a different price tier entirely. Under Clause 1 of the Haven Standard, the written price includes all of this; if we open up and find damaged deck, we document it with photos, write a change order, and nothing proceeds until you sign. No surprise invoices. The 365-Day Done Right Promise covers the workmanship, and IKO’s limited warranty covers material defects. We register the warranty for you; most homeowners forget this step and lose coverage.
DIY or Call Us?

There is one thing a Sherman Oaks homeowner can safely check from the ground: binoculars and a notepad. Walk the perimeter, note lifted tabs, missing ridge pieces, or gutter granule piles. That’s it. Everything else belongs on the other side of the line.
Walking a pitched roof is where DIY goes wrong. Asphalt shingles are slick with morning dew or attic condensation, and Sherman Oaks’ clay tile adjacent roofs create uneven drop-offs that look flat from below. Beyond the fall risk, improper nail placement (the most common IKO warranty void) and damaged underlayment you can’t see from the surface turn a $600 repair into a $3,000 water damage claim by spring. We’re insured for height work, and our crews carry the right nail guns with depth adjustment for IKO’s reinforced nailing zones. If you’re weighing the weekend project against the phone call, call (213) 221-0788 and we’ll give you a written estimate you can compare to the cost of a hospital copay.
FAQs
In the San Fernando Valley’s climate, a properly installed IKO Cambridge architectural shingle typically performs 18-22 years before significant degradation, and a Marathon Plus 3-tab closer to 14-17 years. The intense UV exposure and thermal cycling from 110°F summer days to 45°F winter nights accelerate asphalt oxidation. Call (213) 221-0788 for an exact assessment of your roof’s condition; estimates are free.
Yes, if the damage is localized and the surrounding shingles retain their flexibility. We can spot-replace wind-lifted tabs, swap ridge caps, and reseal flashing. If more than 30% of the field shingles are brittle or the deck is compromised, repair becomes false economy. We document both options with photos and give you two written prices. Call (213) 221-0788 for the assessment.
A localized repair on a Sherman Oaks single-story home is typically one day; a full roof replacement is two to four days depending on layers, deck condition, and whether we’re working around the garage or an attached patio cover. We protect landscaping with plywood walkways and magnet-sweep nails at the end of each day. Call (213) 221-0788 to schedule.
We stock IKO-compatible ridge caps, starter strips, and underlayment on our trucks. For color-matched field shingles on older IKO lots, we may need to source from the IKO distribution center in Ontario or match to a close-running aftermarket equivalent. We never start a job without confirming the shingle is in hand. Call (213) 221-0788 and we’ll verify availability against your lot number.
Rowan Construction Group Sherman Oaks is an independent service provider and is not affiliated with IKO Industries Ltd. We also stock parts and materials for KraftMaid, Cambria, and Silestone products.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







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