IKO Ridge Vent Installation Nationwide

IKO Ridge Vent Installation: The Los Angeles Owner’s Guide

We stock and install IKO-compatible ridge vent in Los Angeles, and most jobs run $650 – $1,350 installed depending on roof length and whether old vent material has to come off first. You’ll typically get the swap done same day once we’re on the roof, because ridge vent is one of the faster single-part fixes in roofing. The usual way owners find us: they’re in the attic on a warm afternoon, and it feels like a sauna. Or they spot a cap shingle lifting at the ridge line, or they see granule buildup in the gutter and trace it back to the peak. Ridge vent fails quietly until your cooling bill tells you something changed.

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Which IKO Models This Applies To

IKO puts ridge vent under a couple of product names you’ll see on the box: the IKO Ventilation ridge vent line, including their 4-foot and 5-foot profile options. The most common in LA is a 10.5-inch wide roll vent that bridges the open ridge slot and gets nailed under IKO cap shingles. If you’ve got a Cambridge, Dynasty, or Nordic shingle roof, the vent is installed the same way, but what actually matters for fitment is the profile height, not the shingle name. Low-profile ridge vent sits closer to the cap and suits homes where the ridge is visible from the street; higher-profile options breathe better for steep roofs in places like Encino or the hills above Glendale.

Me, I look for two things when I match a vent: the manufactured width printed on the roll and the condition of the sheathing gap underneath. IKO specs a minimum slot opening at the ridge, often 1 inch to 1.5 inches depending on product, and if the original installer cut that gap wider or narrower, the vent won’t perform even if it’s “the right part.” For owners who need a replacement fast, quality aftermarket ridge vents with the same baffle profile do fine, and we’ll tell you the brand before we install it. We are an independent service provider and aren’t affiliated with IKO, which means we’re free to recommend what actually works for the roof you have. Tilehurst Roofing Los Angeles carries IKO-compatible ridge vent, plus stock for GAF, Owens Corning, and CertainTeed systems when we need to match another part of the roof.

Signs Your IKO Ridge Vent Installation Is Failing

• Attic heat that won’t drop at night even with the windows and doors closed. The sun bakes your roof deck all day, and without a working ridge vent, that hot air has nowhere to leave. An attic staying 125°F or higher after 9pm usually means the vent is blocked, crushed, or separated at the ridge seam.
• Cap shingles lifting, cracking, or sitting proud at the peak. Los Angeles heat bakes the adhesive on cap shingles until they curl. When you see a cap shingle lifting, the vent underneath is exposed to rain and wind, and it’s only a matter of time before water gets driven under the shingle line.
• White or chalky mineral granules collecting in gutters near the ridge. Shingle granule loss is normal over decades, but when the gutter under the roofline is filling with granules while the rest of the yard stays clean, the cap shingles and the plastic vent baffles are rubbing against each other as they heat up and cool down.
• Damp rafters or mildew scent near the peak, not just near the eaves. A good ridge vent pulls stale air out as the day warms up. When it fails, moisture from the house rises and condenses, and you’ll smell that musty attic smell first on warm days after a cooler night.
• Visible separation between vent sections or a torn baffle material at the ridge line. If you’ve ever been in the attic and looked up with a flashlight, the vent should read like one continuous strip. Where sections have pulled apart or a limb shaved the plastic, air leaks through the wrong spot and leaves the hot air trapped.

Replacement Cost & What’s Included

In Los Angeles, a typical IKO ridge vent replacement runs roughly $650 – $1,350 installed. The range moves based on three things: how many linear feet of ridge you have (a small Mid-City bungalow is on the low end, a two-story Granada Hills home with a long ridge is on the high end), how much old vent material has to be pulled and disposed of, and whether the wood sheathing at the ridge is sound. We tell you the price before we touch the roof, that’s the only way we know how to start. Every estimate is a written, line-item price, and every ridge vent replacement gets covered under the 365-Day Done Right Promise: if the vent leaks, separates, or fails inside a full year of documented performance, Tilehurst returns at no charge under the written guarantee. You get the written guarantee before the crew leaves, not mailed later. Most ridge vent jobs finish in under three hours on the roof.

DIY or Call Us?

You can safely check a few things from the attic or the yard: look for daylight at the ridge, check the bathroom fans are venting to the outside not into the attic, and take a slow walk around the house looking for lifted cap shingles. What you shouldn’t do is climb the roof or try to replace the vent yourself. Ridge vent sits at the highest, most exposed point on the house, and a fall from there on a two-story LA hillside is not worth saving a few hundred dollars. The other risk is less visible: if you tear off the old vent and leave the slot exposed while the sun goes down or a marine layer rolls in, water gets into the attic before you can finish. For what it costs, have a professional do it. If you’re on the fence, call us at (213) 674-2890 and we’ll give you a free estimate. No pressure, just a written price you can decide on.

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