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Before
After
Before
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Before
AfterBoral Ridge Vent Installation: The Los Angeles Owner’s Guide
Tilehurst Roofing installs Boral-compatible ridge vent systems across Los Angeles, with most single-family homes running $680 to $1,450 installed depending on ridge length and the condition of the existing roof decking. We stock Boral profile-matched ridge vent on our trucks and can usually have the swap done the same week we inspect. Most Los Angeles homeowners discover the problem the same way: a musty smell in the hallway, a ceiling stain that wasn’t there in February, or a handyman up on the roof for something else pointing out cracked, sun-baked vent material along the peak.
Which Boral Models This Applies To
Boral’s ridge vent systems are tied to their roofing profiles, not to a single universal part number. The two you’ll encounter most often in Los Angeles are the Boral Vent-Loc series and the low-profile Boral Hide-A-Vent, each with different slot widths and nail flanges. If you flip over a removed section, you’ll find a mold-marked part number starting with “BV” or “RP” followed by four digits. That number matters. Boral changed flange geometry on several profiles around 2016, and the older sections won’t seat against the newer profiles without leaving a gap at the nail line. We see that mistake on re-roofs across the San Fernando Valley: someone used the wrong profile match and water found its way in under the first winter rain. Tilehurst Roofing is an independent local company; we’re not affiliated with Boral, but we stock both the OEM profiles and a quality aftermarket equivalent from a Southern California extruder that matches the original UV-stabilized PVC spec, so you’re not locked into a single option if lead times stretch.
Signs Your Boral Ridge Vent Installation Is Failing
- Ceiling stains or damp attic insulation near the peak. This is the classic failure. Water follows the ridge line and shows up at interior walls first, not always directly under the damaged section. In Los Angeles, we typically see this after the first heavy rains in November or December.
- Sun-bleached, chalky, or brittle vent material. L.A.’s UV exposure is relentless, especially on south- and west-facing ridge lines from Studio City to Woodland Hills. After eight to ten years, the PVC gets brittle, and you can see hairline cracks from the street with binoculars.
- High attic temperatures in summer. A blocked or collapsed ridge vent restricts airflow. When homeowners in Glendale or Pasadena tell us their upstairs AC runs constantly in July, we check airflow before we check the unit.
- Visible shingle or tile lift along the ridge cap. If the underlying vent has warped, the cap material rides up and creates a water entry point. This is especially noticeable after the hot, dry Santa Ana stretches.
- Debris or nesting material at the vent openings. Squirrels, birds, and roof rats (a real problem in neighborhoods with mature trees, like Los Feliz) find damaged ridge vents an easy entry point. Once they’re in, the damage compounds quickly.
Replacement Cost & What’s Included
For a typical Los Angeles single-story home with 30 to 45 linear feet of ridge, expect $680 to $1,450 installed. The range depends on three things: how long the ridge run is, whether the roof decking underneath is sound, and whether we’re matching an existing Boral profile or switching to the current Vent-Loc spec. A two-story home in the hills adds a staging factor that pushes labor up 15 to 20 percent. Every Tilehurst Roofing quote is a written, line-item price you see before any work starts; no change orders show up at the door. The new vent section carries our written workmanship warranty, and the whole job falls under the 365-Day Done Right Promise. If it’s not right inside a year, we come back and make it right without another invoice.
DIY or Call Us?
You can safely inspect a Boral ridge vent from the ground with binoculars, and a careful look at the attic side for daylight gaps or water staining costs you nothing. What you shouldn’t do is work on a ridge line without fall protection, proper tie-off training, and the right Boral profile match. Steep roof work is how homeowners in Los Angeles get hurt every year, and the ridge is exactly where a wrong step becomes a bad fall. If the vent is cracked, warped, or the profile match is even slightly off, the fix stops being a parts swap and starts being a call. We’ll get the part matched, give you a written price, and leave the place cleaner than we found it. That’s the Kingswell Way. Know the price before the first tile moves. Call (945) 303-9821 and we’ll set a time that works.
FAQs
Plan on 12 to 18 years for OEM Boral ridge vent in the Los Angeles climate. Constant UV exposure, the thermal cycling between hot days and cool nights, and occasional debris impact shorten that; we’ve replaced sections at eight years on inland valley roofs with full afternoon sun.
Small, isolated cracks can sometimes be sealed, but we don’t recommend it. The surrounding material is usually just as brittle, and a patch on one section leaves the rest of the ridge line one Santa Ana season from failure. Replacement gives you a full, continuous vent run.
Most Los Angeles ridge vent replacements take one crew four to six hours, including removing the old cap, inspecting the decking, installing the new vent, and re-securing the cap material. Longer or steeper ridge lines add time, but it’s almost always a single-day job.
We stock common Boral Vent-Loc and Hide-A-Vent profiles on our trucks, along with the aftermarket equivalent. If your ridge length is unusual or the profile is older, we’ll order the exact OEM section and schedule the install once it arrives. We also carry compatible venting for GAF, Owens Corning, and CertainTeed profiles.
Talk to Us About Your Boral Ridge Vent
If you’ve got a failing Boral ridge vent and want a straight answer on cost, call Tilehurst Roofing at (945) 303-9821. Greg Holloway grew up in Eagle Rock and learned roofing at Los Angeles Trade-Technical College from instructors who worked roofs for a living. He’ll make sure you get a written price before any work begins, a real person answers the phone, and the guarantee is in your hand before the crew leaves. Free estimates, no pressure, and the Kingswell way on every job: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.
Written by Greg Holloway, Owner, Tilehurst Roofing at Tilehurst Roofing, serving Los Angeles and nearby areas.