Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CGI Roofing: The Woodland Hills Owner’s Guide
We stock and install CGI-compatible roofing parts across Woodland Hills, with most replacements running $400 to $1,800 installed depending on the specific component and how much of it has failed. Homeowners typically find the problem after a Santa Ana wind event or the first heavy rain of the season: a lifted panel, a torn seam, or water staining on a ceiling joist. The good news is that CGI roofing is built to take Southern California sun, and a targeted part replacement is almost always cheaper than a full panel rework.
Which CGI Models This Applies To
CGI’s roofing line runs through several series that show up repeatedly in Woodland Hills homes, most commonly the Corrugated G-90 and the heavier R-Panel profiles. The part you need depends on the profile height: corrugated CGI panels measure roughly 7/8″ high at the rib, while R-Panel runs closer to 1-1/4″. That measurement matters because trim, closures, and fasteners are cut for one profile or the other, and a mismatched closure strip will let wind-driven rain under the panel by morning. Look for a stamped label on the underside of a loose panel or on the original cut sheet left in the garage. Aftermarket options from well-established fabricators in the Valley often match CGI’s 24- and 26-gauge steel specs, but OEM trim pieces from CGI hold their finish longer against the hot dry air that cooks the west side of Woodland Hills every summer.
Styles & brands we work with
Signs Your CGI Roofing Is Failing
- Oil-canning that gets worse, not better. Some waviness is normal on metal roofs, but if a panel starts to visibly flex and pop under foot traffic or hard wind, the underlying fasteners have backed out or the panel’s lost tension. Left alone, the movement enlarges the fastener holes and water gets in.
- Rust streaks running down from a seam or screw head. In Woodland Hills, this usually starts where a leaf pile sat through a wet winter against a trim edge. Once the galvanized coating is breached, the rust creeps under the paint and the panel needs replacing, not repainting.
- Lifted ridge cap or rake trim after a wind event. Santa Anas hit Warner Center and the neighborhoods south of it hard. If the cap looks raised or is missing screws, the closure strip underneath is likely shot and the roof is open to wind-driven rain.
- Water staining on fascia boards or in the attic near the eave line. Metal roofs rarely leak mid-panel. The leaks happen at transitions: valleys, curbs, pipe boots, and eave trim. Staining at the eave points to a failed eave closure or a backed-out screw line.
- Screws that have “fingered” out. On older CGI installs, especially on south-facing slopes, the rubber washers on the screws bake and crumble. The screw stays put but the seal is gone. A roof with dozens of dried washers will leak everywhere at once.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Woodland Hills, here’s what we see:
- Single panel replacement (corrugated): $400 – $900 installed, including matching paint, new screws with EPDM washers, and removal of the old panel.
- Ridge cap or rake trim replacement: $500 – $1,200 depending on the linear footage and whether the closure strips need replacing underneath.
- Pipe boot or roof penetration re-flashing: $400 – $800, which includes new sealant rated for metal roofs.
- Multi-panel or valley repair: $1,000 – $1,800 when water has gotten under several panels or the valley metal is opened up.
Every quote is written, line-itemed, and delivered before we order a single part. The price won’t change once the job starts unless we find structural rot hidden underneath, and we’ll tell you before we touch it. Workmanship is covered under our 365-Day Done Right Promise: if it’s not right within a year, we fix it at no cost.
DIY or Call Us?
You can safely check a few things from the ground: look for lifted trim, missing screws, and rust streaks around penetrations. You can also feel for water stains on the underside of the roof deck from inside the attic. What you shouldn’t do is walk a metal roof without experience, especially an older one. A metal roof hides loose panels until they shift under your weight, and a fall from a Woodland Hills roofline is not something anyone should risk to save a service call. If the part needs replacing, the job usually involves cutting metal, matching paint, and sealing against the next Santa Ana. That’s when you call us at (831) 290-6866 and let Isaac Pruett look at it the same day.
FAQs
A properly installed CGI metal roof in our climate typically lasts 30 to 45 years, though the fasteners and washers often need attention around the 15- to 20-year mark, especially on south-facing slopes that get hammered by sun. The panels themselves can outlast the house.
Small punctures and surface scratches can sometimes be sealed with a metal-rated urethane sealant and touched up, but once a panel has rusted through, lost its tension, or had fastener holes wallowed out, replacement is the honest fix. We’ll tell you which one you’re looking at before we quote it.
Most single panel or trim replacements take half a day, including setup, removal, install, and cleanup. We carry common corrugated and R-panel profile pieces in matching colors on the truck, so we can often start the same visit.
We keep the most common Woodland Hills profiles and trim pieces in stock, along with the correct fasteners and closures for CGI specs. If your panel color is a less common one, we order it from a local fabricator and usually have it in hand within two or three business days. Call (831) 290-6866 for a free estimate, and we’ll confirm what’s on the truck for your exact roof.
Written by Isaac Pruett, Owner, Mason Remodeling Co – Woodland Hills, CA at Mason Remodeling Co Woodland Hills, serving Woodland Hills and nearby areas.
