Free 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 $12,000 to $19,000 for an average 1,800-square-foot home using IKO Dynasty or Nordic architectural shingles, with most full replacements completed in 3 to 5 working days. As an independent IKO service provider, Tilehurst Roofing works on IKO roofs across Los Angeles without being tied to one manufacturer’s line, which means the replacement you get is the one that fits your house and your budget, not the one sitting in our yard. If you own an IKO roof in Los Angeles and you’re seeing granule loss, curling shingles, or leaks at the eaves, this page tells you what’s actually going on, what it costs, and how we fix it. Call (945) 303-9821 for a written price before any work starts.
How IKO Products Fail - and How We Fix Them
IKO makes a solid shingle, but every product line has its own failure patterns after years of Los Angeles sun, Santa Ana wind, and the occasional winter downpour that catches every flat section off guard. Here’s what we see most on IKO roofs in Los Angeles, and what we do about it.
- IKO Cambridge granule loss on south-facing slopes. The Cambridge line, installed on thousands of Los Angeles homes between the mid-2000s and early 2010s, tends to shed granules faster on slopes that take direct afternoon sun. The asphalt underneath oxidizes, the shingle gets brittle, and you start seeing granules in the gutters after every rain. By the time a homeowner notices, the shingles are usually past repair. We replace the affected slopes with IKO Dynasty or a comparable architectural shingle, and we inspect the underlayment while we’re up there because granule loss is often the first sign the whole roof surface is near the end.
- IKO Nordic curling at the eaves. Nordic shingles are heavier and stiffer than Cambridge, which is good for wind resistance but means they curl at the outer edges when the decking underneath gets damp or the shingles weren’t nailed with the right exposure. On older Los Angeles homes with single-layer decking, this shows up as a wavy line along the first two or three courses. We pull the curled courses, check the decking for rot, replace what’s soft, and re-lay the section with proper fastening patterns before it spreads up the slope.
- IKO Marathon seal strip failure after heat expansion. Marathon is IKO’s three-tab line, and on Los Angeles roofs it has a known weak point: the adhesive strip that bonds each shingle to the one below it. After years of 90-degree days, that strip dries out and fails, which means wind gets under individual tabs and starts flipping them. You’ll see random tabs lifted all over the roof, not in one clean row. On a roof that’s otherwise sound, we can sometimes replace the damaged tabs, but if more than a third of the roof shows tab lift, we recommend full replacement because the remaining adhesive strips are all the same age and will fail in turn.
- Decking rot under IKO shingles on older Los Angeles homes. This isn’t an IKO defect, it’s a Los Angeles reality. Many homes built in the 1960s and 1970s used plywood decking that was never designed for repeated moisture cycles from fog, rain, and morning condensation. When we tear off an old IKO roof, we find soft decking around vents, chimneys, and along the eaves more often than not. If we don’t replace it, the new shingles have nothing solid to anchor into. We always include decking replacement in our written quote when we can see signs of it during the initial inspection, so you’re not surprised when the roof comes off.
- IKO shingles installed over a failed underlayment. The shingles are only half the waterproofing system. On a lot of Los Angeles roofs, the original underlayment, the layer between the shingles and the decking, was a thin felt paper that’s now crumbled into dust. When the underlayment fails, water gets through the decking even if the shingles look fine from the ground. On every IKO replacement we do, we tear down to bare decking and lay a new synthetic underlayment before the first shingle goes on. It’s code in Los Angeles now, and it’s the difference between a roof that lasts 30 years and one that leaks in eight.
Our IKO Roof Replacement Process
Replacing an IKO roof in Los Angeles should be predictable. Here’s how we run every job, from the first phone call to the day the permit closes.
- 1
You call, a person answers. Not a callback queue. A live person answers at (945) 303-9821, day or night, and schedules your inspection. Greg Holloway or one of our lead techs comes out to the property, not a sales rep with a brochure.
- 2
We inspect the roof and the attic. The roof tells us what’s failing. The attic tells us why. We look for decking damage, ventilation problems, and signs that water has been getting through the underlayment. On an IKO roof, we check the seal strips, the granule coverage, and the eave lines specifically.
- 3
You get a written price before any work starts. The number includes tear-off, haul-away, decking repair if needed, underlayment, IKO shingles or a comparable line from any of the seven manufacturers we stock (GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, Boral), flashing, ridge cap, drip edge, and the permit. If we find rot after the roof comes off, the decking replacement price is already in the quote, not added at the door.
- 4
The crew arrives in the window we gave you. Uniformed, background-checked roofers, led by the same person who did your inspection. Tear-off is done carefully, not with a crowbar through the decking. We protect your landscaping and the areas around the house where debris falls.
- 5
We lay the new roof and test for leaks. New underlayment, new drip edge, new flashing at every penetration, new IKO shingles with the right fastener pattern for the product line and the slope. Then we water-test the flashing points before we call the job done.
- 6
You get the written guarantee before the crew leaves. Not mailed later. If anything fails inside the guarantee period, we return at no charge under the 365-Day Done Right Promise.
What IKO Roof Replacement Costs in Los Angeles
IKO roof replacement in Los Angeles breaks down into a few clear scenarios. Keep in mind that Los Angeles permit fees, tear-off costs, and dump fees run a bit higher than the national average because of local hauling and recycling requirements.
| Scenario | Typical Price Range |
|---|---|
| IKO Marathon (three-tab) full replacement, 1,500 sq ft | $10,500 - $13,500 |
| IKO Cambridge architectural full replacement, 1,800 sq ft | $12,000 - $15,500 |
| IKO Dynasty architectural full replacement, 1,800 sq ft | $12,500 - $16,500 |
| IKO Nordic premium architectural, 2,000 sq ft | $14,500 - $19,000 |
| Decking replacement (per sheet, if rot found) | $85 - $120 |
| Full tear-off, haul-away, and dump fees | Included in all quotes above |
What moves the price: how many layers we’re tearing off (two layers of old shingles adds labor and dump weight), the slope and access (a steep pitch or a tight lot in the hills costs more in labor and safety equipment), whether the decking is solid or needs replacing, and which IKO line you choose. The good news is that we can show you prices for several IKO lines side by side so you decide based on your budget, not our inventory. Call (945) 303-9821 and we’ll give you a written quote with the full number on it.
Why Los Angeles Homeowners Call Tilehurst Roofing for IKO Work
Most of our IKO replacement customers in Los Angeles have already had one bad experience with a contractor. Maybe someone no-showed, maybe the price changed after the tear-off started, maybe a repair failed within a month. That’s exactly why Tilehurst operates the way it does. We’re a Kingswell family company, founded in 2000, and every location runs under the Kingswell Guarantee: say the price before the work, show up in the window we gave, write the guarantee down, and come back if it fails. The 365-Day Done Right Promise covers every IKO replacement we do, from the day the last nail goes in to a full year after. We also aren’t married to one brand. If IKO isn’t the right product for your roof’s pitch or exposure, we’ll show you options from GAF, Owens Corning, and CertainTeed as well. You get the product that fits the house. Know the price before the first tile moves.
FAQs
An IKO roof replacement in Los Angeles typically costs between $12,000 and $19,000 for a full tear-off and new IKO architectural shingles on an average 1,800-square-foot home, depending on the IKO line, slope, and whether decking replacement is needed. Call (945) 303-9821 for an exact written quote, it’s free and it’s the full number before any work starts.
Yes. We’re an independent roofing company, not an IKO dealer, so we stock and install seven major manufacturers including GAF, Owens Corning, and CertainTeed. If your roof’s slope, exposure, or budget fits a different product better, we’ll show you side-by-side options and let you decide. The written quote we give you is based on the product you choose.
No, replacing your roof never voids the original IKO warranty because the warranty dies with the product anyway once the roof is torn off. The new IKO shingles come with their own manufacturer warranty, and our workmanship is covered separately by our written guarantee and the 365-Day Done Right Promise.
Most full IKO roof replacements in Los Angeles take 3 to 5 working days from tear-off to final inspection, depending on the roof size, the number of layers being removed, and whether the decking needs replacement. Weather delays are rare in Los Angeles, but we always give you an honest timeline before we start, not after.
If you’re seeing granule loss across multiple slopes, curling or lifted shingles on more than a third of the roof, water stains in the attic, or decking rot revealed during an inspection, full replacement is usually cheaper in the long run than chasing repairs on a roof that’s past its useful life. Greg Holloway and our team will show you what we see during the inspection and give you a written recommendation, not a sales pitch.
If you own an IKO roof in Los Angeles and want a straight answer about replacement, call (945) 303-9821. We’ll inspect it, give you a written price, and then you decide. No pressure, no surprises.
Written by Greg Holloway, Owner, Tilehurst Roofing at Tilehurst Roofing, serving Los Angeles and nearby areas.






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