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IKO Roofing Company in Orange County: What to Know First
IKO roof repair in Orange County typically runs $450 – $1,800 depending on whether we’re replacing a few shingles, re-flashing a penetration, or repairing decking beneath a failed underlayment. As an independent IKO service provider, Tilehurst Roofing Orange County repairs and replaces IKO shingle systems across the county, usually completing repairs same-day once we’re on-site with materials in hand. You get a written price before any work starts, and every repair leaves with a written guarantee in your hands.
If you own a home in Orange County with an IKO roof and you’ve noticed granules in the gutter, lifting shingles, or a drip that appeared after the last rain, this page tells you what’s likely going on, what it costs to fix, and how we work. Call (559) 295-5445 to schedule a free estimate.
How IKO Products Fail – and How We Fix Them
IKO makes several shingle lines we see regularly on Orange County homes: Cambridge, Dynasty, Nordic, and the older Marathon series. Each has its own behavior in this climate, and we’ve learned what to look for from years of walking these roofs.
- Cambridge series granule loss and curling at the eaves. The Cambridge line has a fiberglass mat core that’s lighter than some competitors. In Orange County’s direct sun, particularly on south-facing slopes in Mission Viejo and Rancho Santa Margarita, we see the adhesive strip dry out earlier than expected, which lets shingle edges lift. Wind catches the lifted edge, granules shed, and the mat starts to oxidize. The fix isn’t just replacing the lifted shingle; we check the entire sun-exposed slope for adhesive failure and address the weak spots before they become leaks.
- Dynasty series nail-line tear-through in high-wind pockets. The Dynasty shingle is heavier and handles wind better than older IKO lines, but only if it’s nailed correctly. IKO’s oversized nail line gives installers some room, which is good. What we find in Orange County neighborhoods where the original install was rushed, like older tracts in Garden Grove and Westminster, is nails driven high above the line. When the Santa Ana winds blow, those shingles tear at the nail point. We replace the torn shingles and re-nail adjacent courses at the correct depth, then document everything for your records.
- Nordic series seal failure and water wicking at the seams. Nordic is a thicker architectural shingle marketed for impact resistance, so homeowners are often surprised when it leaks. The issue in our experience is seal strip bonding, especially on roofs installed in winter months or where dust from nearby construction settled before the shingles sealed. Water wicks up the unsealed seams through capillary action. We lift the affected courses, clean the seal area, and re-seal using IKO-compatible adhesive applied at the correct temperature, not the generic stuff from the home store.
- Marathon ridge cap cracking along the hip lines. The older Marathon line used a thinner mat, and the ridge caps taken from the same material tend to crack after 10 – 12 years, especially on sharp hip angles. Once a cap cracks, water follows the gap down into the roof deck. We replace cracked caps with new IKO ridge cap shingles or a color-matched equivalent, and we check the hip line for any soft decking beneath the crack before re-capping.
- Underlayment failure at valleys and penetrations on all IKO lines. This one isn’t IKO-specific, but it’s the most common cause of a leaking IKO roof in Orange County. The shingles might be fine, but the original felt underlayment has degraded, or a pipe boot has split. Water bypasses the shingle layer entirely. We open the valley or penetration, replace the underlayment with a synthetic product, re-flash, and re-lay the shingles. The shingle replacement is straightforward; the underlayment work is what actually stops the leak.
Styles & brands we work with






Our IKO Roofing Company Process
When you call Tilehurst Roofing Orange County about an IKO roof, here’s how the job goes, start to finish.
- 1
You call, a live person answers. When you dial (559) 295-5445, you get a person, not a voicemail prompt. We take your information, ask what you’re seeing, and schedule a visit at a time that works for you, evenings and weekends included.
- 2
We show up and walk the roof. Greg Holloway or a senior crew lead inspects the roof in person. We’re not quoting from satellite photos. We check the shingles, the flashing, the valleys, the penetrations, and we tap the decking for softness. You get a written line-item price after this walk, not before, and the number doesn’t change unless we find hidden structural damage and you approve the change in writing.
- 3
We make a parts decision with you. For IKO repairs, we use IKO shingles where the line is still in production, like Cambridge and Dynasty. For discontinued lines like Marathon, we bring color-matched aftermarket options and show you the match before we install. We never surprise you with a different shingle color after the fact.
- 4
The repair happens. The crew lays new underlayment where needed, re-flashes, replaces damaged shingles, seals, and checks the surrounding courses for hidden problems. No shortcuts on nailing, no off-brand sealant from a bucket that’s been sitting in the truck for six months.
- 5
We test and walk you through it. We water-test repaired areas where practical and we show you the work before we take the ladder down. You see exactly what was done and why.
- 6
You get the written guarantee. Before the crew leaves, you have a written guarantee covering the repair. If it fails inside the guarantee period, we come back at no charge under our 365-Day Done Right Promise. That’s the Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, and put the guarantee in writing.
See the difference
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After
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After
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AfterWhat IKO Roofing Company Costs in Orange County
Here’s what we typically quote for common IKO scenarios in this market. These are honest ranges; your exact number depends on your roof’s slope, accessibility, and the condition of the underlying decking.
- Single shingle replacement (Cambridge or Dynasty): $450 – $650
- Pipe boot or vent flashing replacement: $350 – $550
- Small valley repair (re-flashing and underlayment patch): $800 – $1,400
- Eaves re-sealing and granule-loss repair (one slope): $700 – $1,200
- Decking replacement plus shingle re-lay (one damaged section): $1,200 – $1,800
- Full IKO roof replacement (per square, Cambridge/Dynasty installed): $550 – $750 per square
What moves the price is decking condition and access. A steep two-story tile-to-shingle transition in Laguna Niguel costs more than a single-story ranch in Tustin because it takes longer and requires more safety gear. We’ll tell you the price before we touch a shingle. Call (559) 295-5445 for a free estimate.
Why Orange County Homeowners Call Tilehurst Roofing Orange County for IKO Work
Most of our Orange County customers have been burned before: someone no-showed, changed the number at the door, or did a repair that failed in the first storm. We operate differently because the Kingswell family of companies was built for exactly that customer. The written price comes before any work starts. The written guarantee comes before the crew leaves. And if a repair fails inside the guarantee year, our crew returns at no charge.
Greg Holloway has spent more than two decades on rooftops across Southern California, and he’s worked steadily through Orange County, from Laguna Niguel out toward Mission Viejo, for years now. He walks every job site before quoting. If your IKO roof needs work, we handle it. If your next roof isn’t IKO, we also install and service GAF, Owens Corning, and CertainTeed systems, along with Atlas, Tamko, and Boral. Seven manufacturers, so the product fits your home. That’s the point: you get the right roof, not just whatever is on the truck.
Call (559) 295-5445 and you’ll get a live person, every time, any hour. You get the price before we touch a shingle. That’s how it starts, and that’s how we stay.
FAQs
No, a repair by a licensed contractor does not void IKO’s limited warranty on the rest of your roof. The warranty covers manufacturing defects in the shingles themselves; it does not require you to ignore a leak. What can void coverage is improper installation. We follow IKO’s installation specifications for Cambridge and Dynasty lines and we document our work so you have a record if a warranty claim comes up later. Call (559) 295-5445 and we’ll walk you through how your specific warranty applies.
Yes, if your shingle line is still in production. IKO Cambridge is currently available in most of the colors sold in Orange County over the last decade: Dual Black, Weatherwood, Charcoal, and Harvard Slate among them. We’ll bring physical samples to your home and match in daylight before we install. Discontinued lines like Marathon require a color-matched equivalent; we show you the match and get your approval before we nail anything down.
Most IKO repair calls in Orange County are scheduled within a week, and active leaks with water entering the home get priority. A live person answers our phone 24 hours a day, 7 days a week, so you can reach us when you notice the problem, not when it’s convenient for a call center. For active leaks, call (559) 295-5445 immediately and we’ll get you scheduled.
If your IKO shingles are less than 15 years old and the decking underneath is dry and sound, repair is almost always the right financial call. You’re looking at a few hundred to a couple thousand dollars versus $15,000 – $25,000 for a full replacement in Orange County. If your roof is past 18 – 20 years, showing widespread granule loss, or leaking in multiple places, replacement starts to make more sense than chasing leaks. We’ll give you an honest assessment either way, with numbers for both options. Estimates are free.
Where required by the city or county, yes. Roof replacements in Orange County municipalities generally require a permit and inspection, and we handle both. Repairs typically don’t require permits, but we’ll tell you up front if yours does. No permit surprises, no “we’ll handle it later” that turns into your problem with the building department.
Written by Greg Holloway, Owner, Tilehurst Roofing Orange County at Tilehurst Roofing Orange County, serving Orange County and nearby areas.