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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 San Diego: What to Know First
IKO roof replacement in San Diego typically runs $11,000 to $22,000 for a full tear-off and re-roof on an average single-family home, depending on the shingle line, decking condition, and roof pitch. Most IKO replacements take two to four days once materials are on site. We’re an independent IKO service provider, which means we replace IKO roofs without being tied to manufacturer sales quotas, and you’ll get a written price in your hands before a single shingle comes off. This page is for San Diego homeowners whose IKO roof has reached the end of its useful life or failed early, and who want straight numbers before they commit. Greg Holloway and our crew handle IKO replacements from Oceanside down to Chula Vista and every neighborhood in between. Call (619) 393-3877 to schedule a free estimate.
How IKO Products Fail – and How We Fix Them
IKO makes solid shingles, but San Diego’s specific climate, the relentless UV, the salt air near the coast, and those sudden Santa Ana wind gusts, pulls out failure patterns we’ve learned to spot fast. Here’s what we actually see on IKO roofs across San Diego and how we address it during a replacement:
- IKO Cambridge granule loss and premature balding. The Cambridge line is the most common IKO shingle we tear off in San Diego. The specific symptom is heavy granule accumulation in gutters within the first eight to twelve years, with bald patches showing on south-facing and west-facing slopes first. The cause is usually UV degradation combined with the shingle’s lighter asphalt base layer being exposed faster than heavier competitor lines. During replacement, we inspect the decking beneath those bald areas carefully, because once granules go, the mat underneath takes direct sun and can cook the wood below. Fix: full tear-off, decking replacement where needed, and a written comparison of replacement shingle options so you’re not locked into the same product.
- IKO Dynasty sealant strip failure in high-heat years. The Dynasty line’s sealant can lose tack after repeated heat cycling, which San Diego gets in waves every late summer. We see shingles that look fine from the street but lift with a finger, and we’ve caught tabs flapping after the first Santa Ana of October. On a replacement, this matters because the old shingles often come off in whole sheets rather than individual tabs, which speeds up the tear-off but tells us the sealant has been dead for a while. Fix: we verify the decking is still sound, then install the new system with proper nail placement and sealant strips that are still within their service window.
- IKO Nordic and Cambridge reflectance mismatch on low-slope sections. San Diego has plenty of ranch homes with 3:12 and 4:12 pitches, and IKO shingles on those lower slopes hold heat longer than steeper roofs. The symptom owners describe is uneven fading, dark patches where water pools briefly after rain, and shingle edges curling upward. That curl is the tell. Once the edges lift, wind-driven rain gets under the shingle and the underlayment starts working harder than it was designed to. Fix: we replace the underlayment as a matter of course, not as an optional add-on, and we talk through whether a different product is the better call for your specific pitch.
- IKO Crowne Slate and Royal Estate cracking at fastener points. Heavier laminated IKO lines like Crowne Slate and Royal Estate look great but are stiffer, and when they’re nailed too high or the nail head is driven too deep, the shingle cracks at the fastener. We find this on roofs where the original installer used a nail gun set too hot, and once those cracks open, water follows the nail shank into the deck. During replacement, we set nail depth by hand on the first bundle and check it throughout the job. That’s a small thing most crews skip, and it’s exactly why we don’t rush a tear-off.
- IKO underlayment and ice-and-water shield gaps at eaves and valleys. IKO specifies its own underlayment products for full-system warranties, but we routinely tear off IKO roofs where the underlayment stops short of the drip edge or the valley metal was never installed. The California building code has gotten tighter on underlayment in recent years, so a roof that met code in 2005 doesn’t meet it now. Fix: every IKO replacement we do includes new drip edge, full underlayment per current code, and metal valley liners. We don’t leave old flashing in place and call it good.
Styles & brands we work with






Our IKO Roof Replacement Process
Replacing an IKO roof in San Diego is a teardown-and-rebuild job, and the way we run it keeps surprises out of your week. Here’s the sequence, step by step:
- 1
Roof assessment and written estimate. We walk the roof, photograph problem areas, check for soft decking, and hand you a written price before any work starts. You’ll know the price before we touch your roof. That estimate includes tear-off, haul-away, decking replacement allowance, underlayment, shingles, flashing, and cleanup.
- 2
Materials order and delivery. Once you approve the number, we order from our supplier network. IKO products are stocked at distributors throughout San Diego County, so we’re not waiting on a truck from the Midwest. If you’re staying with IKO, we order the exact line and color you picked. If you want to compare GAF, Owens Corning, or CertainTeed, we bring samples before you decide.
- 3
Tear-off and decking inspection. We strip the old IKO shingles down to bare wood, then inspect every sheet of decking. Any plywood or OSB that’s delaminated, water-stained, or soft gets replaced and added to the final invoice at the per-sheet price that was already in your written estimate. No change orders, no phone calls asking for more money.
- 4
Underlayment, flashing, and edge work. New drip edge goes on first, then underlayment, then valley metal and pipe collars. We don’t skip the drip edge. We don’t reuse old flashing. San Diego’s building department has been clear about this, and our inspections pass because we build to current code, not 2005 code.
- 5
Shingle installation and nailing discipline. We install the new shingles with hand-set nail depth, proper overlap, and staggered seams. If the job is an IKO Cambridge or Dynasty replacement, we follow the manufacturer’s published installation specs because that’s what keeps any remaining IKO warranty intact for the materials.
- 6
Cleanup, walk-through, and written guarantee. We magnet-sweep the yard for nails, run the blower over the roof, and walk you through the finished job before we leave. Then we hand you the written guarantee. Not an email. Not a promise. Paper in your hand, with the coverage period and the phone number to call if anything goes wrong inside that window.
See the difference
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AfterWhat IKO Roof Replacement Costs in San Diego
Here are the honest ranges we quote for IKO work in San Diego, based on the jobs we’ve priced over the last several years:
- Full IKO tear-off and replacement, Cambridge or Dynasty, 1,400 – 1,800 sq ft home: $11,500 – $16,500
- Full IKO replacement, Crowne Slate or Royal Estate heavier lines: $14,000 – $20,000
- Decking replacement (per 4×8 sheet): $75 – $110, typically 3 – 8 sheets on an older IKO roof
- Flat or low-slope IKO membrane section (detached garage, addition): $4,500 – $9,000 depending on square footage and edge detail
What moves the price: roof pitch, number of stories, how much decking is shot, whether the old roof has two layers that need tearing off, and whether we’re re-flashing a chimney or skylight. You won’t get a vague “we’ll see” from us. The estimate is written, and the number on it is the number you pay unless we uncover decking damage, which is priced per sheet and disclosed before we touch it. Call (619) 393-3877 for a free estimate on your IKO replacement.
Why San Diego Homeowners Call Tilehurst Roofing San Diego for IKO Work
Most of our IKO customers call us after a bad experience with another contractor, and we’ve built the company around not repeating it. We’re part of the Kingswell family of roofing companies, founded in 2000, and every Tilehurst location operates under the Kingswell Guarantee. That means a written price before any work starts, a written guarantee on every replacement delivered before the crew leaves, and a full year of accountability under our 365-Day Done Right Promise. If something isn’t right, we come back and make it right. A live person answers the phone 24 hours a day, 7 days a week, including weekends and evenings. And if IKO isn’t the best fit for your next roof, we carry GAF, Owens Corning, CertainTeed, Atlas, Tamko, and Boral, so the material recommendation is based on your home, not our inventory. Greg Holloway and our crew put roofs on everything from bungalows near Balboa Park to larger homes out in Santee, and the same standard applies to all of them.
FAQs
Replacing your IKO roof does not void any remaining warranty on the materials, but the new shingles’ warranty belongs to the new manufacturer, not IKO. If you replace IKO with another IKO line, the new materials carry whatever IKO warranty applies to that product, provided the installation follows IKO’s published specs. We install to those specs and document the job with photos, which gives you a record if a material defect claim ever comes up.
You can, but we rarely recommend it on roofs older than ten years. IKO shingles fade and weather unevenly, so a partial replacement on one slope leaves you with a visible color mismatch and two different wear cycles on the same roof. The more honest fix is often a full replacement, but we’ll price both and let you decide with real numbers. Call (619) 393-3877 and we’ll walk the roof with you.
Most IKO replacements on a single-family San Diego home take two to four days of active work. Weather delays are rare here, but we don’t work in heavy wind or rain, and we’ll tell you the schedule before we start. If the decking needs more replacement than expected, that can add a day.
IKO’s Cambridge and Dynasty lines are fine products for most San Diego homes, especially on steeper pitches with good attic ventilation. The key is installation discipline, because the failures we see on IKO roofs in this city are almost always installation-related: overdriven nails, missing drip edge, underlayment that stops short. Installed correctly, an IKO roof performs about as well as other mid-tier architectural shingles in our climate.
Yes. Roof replacement in San Diego requires a permit, and we pull it as part of every job. The inspection is scheduled through the city, and we don’t consider the job done until it passes. If you’re comparing bids, ask any contractor whether the permit is included. It should be, and if it isn’t, that’s a red flag.
Written by Greg Holloway, Owner, Tilehurst Roofing San Diego at Tilehurst Roofing San Diego, serving San Diego and nearby areas.