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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
IKO Roof Replacement in Los Angeles: What to Know First
IKO roof replacement in Los Angeles typically runs $9,500 to $18,000 for a standard single-family home, depending on the shingle line, roof pitch, and how much decking needs to come out. We’re an independent IKO service provider, not a factory-authorized dealer, which means we tell you the truth about what your roof actually needs, and we give you a written price before a single shingle comes off the truck.
This page is for Los Angeles homeowners whose IKO roof has hit the end of its service life, started failing early, or taken enough sun and Santa Ana wind that patching no longer makes sense. If you’re seeing granule loss in your gutters, curling at the eaves, or leaks that keep coming back, call (213) 674-2890 and we’ll walk the roof with you.
How IKO Products Fail – and How We Fix Them
IKO makes a solid product, but Los Angeles has a way of finding every weak point in a roof system. Here’s what we see on IKO replacements across the city, from the Valley floor to the Hollywood Hills.
- Cambridge granule shedding in high-UV exposure. The IKO Cambridge line, an architectural shingle, holds up well in most climates, but on south-facing Los Angeles slopes we see the ceramic granules start washing into gutters around year 12 to 14, well before the shingle’s structural life is over. What looks like minor wear is actually the asphalt layer underneath beginning to oxidize. The fix is a full replacement with a fresh Cambridge run or an upgrade to the Dynasty line, which uses a heavier mat and holds its granules longer here. We check granule loss as a percentage of shingle surface before we recommend either way.
- Nordic and Royal Estate seal strip failure in Santa Ana season. These IKO lines use a thermal sealant on the shingle tabs. After enough years of 100-degree heat followed by 60-degree nights, the sealant loses its bond and shingles start flapping in a good windstorm. That’s a wind-driven leak waiting to happen. On a roof with widespread seal strip failure, replacement makes more sense than tab-by-tab resealing, because the underlying mat is already baked. We replace and install with a high-wind nail pattern that meets the current Los Angeles building code.
- Decking rot under Dynasty shingles on flat-pitch sections. IKO’s Dynasty line sits on more low-slope Los Angeles roofs than most people realize, especially on mid-century builds in the Valley. If the original underlayment was a single layer of felt, we regularly find decking rot at the eaves where morning marine layer moisture soaks in and never fully dries. When we pull the old IKO off, we inspect every sheet and replace any that’s soft before the new roof goes down. That’s part of the written quote, not a change order.
- Ventillation-related premature aging on Crowne Slate installs. Crowne Slate is IKO’s heavier slate-look shingle, and it’s a favorite on larger Los Angeles homes. But if the original roof didn’t get ridge venting or adequate soffit intake, the attic heat in a Los Angeles summer can cook the shingle from underneath, causing blistering on the top surface. On these jobs we correct the ventilation as part of the replacement, because a new IKO roof over the same bad airflow will just fail the same way.
- Flashing integration failures at Los Angeles chimney and parapet intersections. This isn’t unique to IKO, but we see it enough on IKO installs to flag it. The original flashing at chimneys, skylights, and parapet walls on older Los Angeles homes was often step-cracked or missing counterflashing, and the shingles around those penetrations are usually the first to blister and tear. When we replace an IKO roof, we replace all the flashing, not just the shingles. The shingle is only as good as the metal that keeps water out at the transitions.
Styles & brands we work with






Our IKO Roof Replacement Process
We don’t do surprises, and we don’t do “we’ll figure it out once we tear it off.” Here’s how an IKO replacement goes with us, start to finish.
- 1
Call and walkthrough. You call (213) 674-2890. Greg or one of our senior crew walks the roof, checks the existing IKO shingle condition, attic ventilation, decking, and flashing. We take photos and measurements. No charge for the visit.
- 2
Written quote, same week. We put a line-item price in your hands before any work starts. That price includes removal, decking replacement if needed, underlayment, shingles, flashing, ventilation, cleanup, and dump fees. If we find something hidden during tear-off, we stop, show you, and get written approval before touching it. The Kingswell Way: say the price before the work.
- 3
Material selection. We’ll talk through IKO’s current lines, Cambridge, Dynasty, Nordic, Crowne Slate, or Marathon, and what makes sense for your pitch, exposure, and budget. You’re not limited to IKO either. We carry GAF, Owens Corning, CertainTeed, Atlas, Tamko, and Boral, so the shingle fits the house, not our inventory.
- 4
Tear-off and deck repair. We pull the old roof down to the deck, replace every soft sheet, and inspect the framing. If any structural issue shows up, we stop and walk you through it. No hidden work, ever.
- 5
Installation. New underlayment, drip edge, flashing, and shingles go down. Our crews work clean, show up in uniform, and every person on your roof is background-checked. We use the manufacturer’s nailing schedule and seal the ridge properly, because half of roof failures we replace in Los Angeles trace back to shortcuts at the edges and ridges.
- 6
Final walk and written guarantee. Before we leave, we walk the finished roof with you, show the work, and hand you a written guarantee. If anything fails inside the guarantee period, we return at no charge under the 365-Day Done Right Promise. That’s a full year of documented accountability, in writing.
See the difference
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AfterWhat IKO Roof Replacement Costs in Los Angeles
Here’s the straight answer, in real dollars, for the range of IKO replacements we do in Los Angeles.
| IKO Scenario | Typical Price Range |
|---|---|
| Cambridge architectural shingle, single-story, simple gable roof, no decking replacement | $9,500 – $13,000 |
| Dynasty architectural shingle, two-story, moderate pitch | $12,000 – $16,500 |
| Crowne Slate or heavier IKO line, steep slope, hillside access | $15,000 – $20,000+ |
| Full decking replacement added (water-damaged or code-deficient existing deck) | $4,000 – $7,000 additional |
| Flat roof section with IKO roofing membrane (low-slope addition or patio) | $6,000 – $10,000 additional |
What moves the price: roof pitch (steep costs more in labor and safety rigging), the number of plumbing stacks and penetrations that need flashing, whether the existing decking is code-compliant, and site access (hillside homes with narrow drives need material staging). We show you every one of these items as a separate line in your written quote. That’s the only way to know you’re comparing apples to apples. Call (213) 674-2890 and we’ll give you a real number for your roof, not a range.
Why Los Angeles Homeowners Call Tilehurst Roofing Los Angeles for IKO Work
Most of our IKO replacement jobs start with a homeowner who already got burned once. A crew that never showed. A price that jumped when the truck pulled up. A repair that leaked again before the season changed. Greg Holloway grew up in Reseda and learned the trade at Los Angeles Trade-Technical College, and he built this company for people who are done guessing. When you call, a live person answers, 24 hours a day, seven days a week, not a voicemail bot. When we quote, the price is written and fixed. When the job’s done, every repair and replacement carries a written guarantee, delivered before the crew leaves, not mailed three weeks later. And because we work with seven manufacturers, including GAF, Owens Corning, and CertainTeed alongside IKO, we’re not married to one brand. If a different shingle is the better call for your roof and your budget, we’ll tell you that too. Tell you the price before we touch the roof, that’s the only way we know how to start.
FAQs
Yes, in most cases the original IKO warranty is non-transferable and tied to the original installation, so a full replacement starts a new warranty cycle based on the new product and installer. That’s why we document every step and provide a written workmanship guarantee on top of the manufacturer’s material warranty. Call (213) 674-2890 if you want to review what your current IKO warranty actually says before you decide.
Most single-family IKO replacements take 2 to 4 working days, depending on roof size, pitch, and how much decking needs replacement. You’ll have a written timeline in your quote, and we show up in the window we gave, not “sometime next week.” Call (213) 674-2890 for a schedule based on your specific roof.
If the shingles are losing granules, curling, or the seal strips have failed across multiple slopes, replacement is usually the more honest investment. We’ll tell you straight if a repair will buy you a few years or if you’re just kicking the can. Either way, you get a written price before any work starts.
We use genuine IKO shingles when you want IKO on your roof, and we match the appropriate IKO underlayment and accessories for a warranty-safe installation. For underlayment and flashing components, we use manufacturer-approved materials that meet or exceed IKO’s installation specifications. We’ll show you the options and the prices before anything gets nailed down.
If anything fails inside the guarantee period, we come back and fix it at no charge under the 365-Day Done Right Promise. A full year of documented accountability, written down, not promised with a handshake. Call (213) 674-2890 and we’ll make it right.
Ready for a number on your IKO roof replacement in Los Angeles? Call (213) 674-2890 to schedule your free estimate. A live person answers, you’ll get a written price in your hands, and you’ll know exactly what your roof needs before you spend a dime.
Written by Greg Holloway, Owner, Tilehurst Roofing Los Angeles at Tilehurst Roofing Los Angeles, serving Los Angeles and nearby areas.