Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Roofing: The Woodland Hills Owner’s Guide
We stock and install Unilock-compatible roofing parts throughout Woodland Hills, with most replacements running $400 – $1,800 installed depending on the specific panel, flashing, or underlayment that failed. The work is typically completed in one visit because our trucks carry the common Unilock profiles and fasteners for the series most homeowners in this area have on their roofs. You’ll usually find us because water started showing up where it shouldn’t, or because a wind event up Topanga Canyon Boulevard pulled a panel edge loose and now it’s flapping. The first call usually starts with “I think something’s wrong with my roof” and ends with a fixed price and a scheduled arrival time.
Which Unilock Models This Applies To
Unilock’s roofing line is less common than their paving stones, so part matching matters more than with a big-box brand. The two series we see most in Woodland Hills are the interlocking tile profiles that mimic clay barrel and the flat-shake profile that reads like cedar from the street. The identifying stamp is usually on the underside of the panel or along the side interlock, and the number will tell us exactly which production run we’re working with, which matters because lock geometry changed subtly between 2012 and 2018. If you can’t get on the roof safely, a photo of the stamp or a panel edge from a ladder is enough for us to pull the right part before we arrive. On the OEM versus aftermarket question: for Unilock specifically we lean OEM on the interlocking panels since the aftermarket pieces can be a millimeter off and break the water channel, but we use a quality aftermarket underlayment and flashing system that often outlasts what came originally. We’re an independent Woodland Hills contractor, not a Unilock dealer, which means we match parts without being tied to a single supply chain.
Styles & brands we work with
Signs Your Unilock Roofing Is Failing
- Water staining on ceiling corners or along exterior walls. This almost always means a cracked panel or a failed side interlock is letting water past the underlayment. The leak rarely lines up directly with the damaged spot because water travels along the decking before it drops.
- A panel edge that lifts or rattles in wind. Unilock’s interlock relies on a tongue-and-groove friction fit, and once the locking lip wears or the fastener backs out, the panel loses its mechanical connection. You’ll hear it before you see it.
- Granule loss collecting in gutters. If the panels have a coated finish, accelerated granule shed tells you the UV protection is gone and the substrate is next. Woodland Hills summers are brutal on that coating.
- Cracked flashing at roof penetrations. Chimneys, vents, and skylights are where we find most failures on Unilock roofs, not the field of the roof itself. The flashing corrodes or separates, and the panels around the penetration start holding moisture.
- Moss or algae along the southern exposure. The side of your roof that never fully dries is telling you the drainage channels are clogged or the panel profile is holding water. Once organic growth starts, the panel surface degrades fast.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Woodland Hills, a targeted Unilock roofing repair runs $400 – $1,800 installed, and the spread comes down to three things: how many panels need replacing, whether the underlayment underneath is still sound, and how steep or cut-up your roof plane is. A single panel swap with new flashing is on the low end. A full section with underlayment replacement and re-flashing a skylight or chimney pushes toward the top. Every quote includes the written price before work starts, the parts, labor, cleanup, and our 365-Day Done Right Promise in writing. If the repair doesn’t hold, we make it right, and a second visit on that same repair is free.
DIY or Call Us?
What you can do safely: clear debris from valleys and gutters, photograph any visible damage from a ladder, and mark where water stains appear inside so we can trace the path. What you shouldn’t do: walk a Unilock roof to “get a closer look.” The interlock isn’t a walkable surface, the panels get slick with morning dew, and a fall from a two-story Woodland Hills hillside roof is life-changing. Same goes for prying up a panel to check the underlayment – you’ll break the interlock lip on the panel next to it, and now you’ve got two damaged panels instead of one. If you want an honest look at whether your Unilock roof needs one panel or a full roof replacement, call (341) 217-2776 and we’ll give you a straight answer with a written price.
FAQs
A properly installed Unilock roof in our climate typically lasts 25 – 35 years, but the flashing and underlayment usually need attention around year 15 – 20, which is when most owners call us. The panels themselves hold up, but the sun and the Santa Ana winds work the edges hard. Call (341) 217-2776 for an inspection, and we’ll tell you honestly whether you need a repair or a replacement strategy.
A cracked panel always gets replaced, not patched, because the interlock and the water channel rely on the panel being structurally whole. Patching a crack is a temporary fix that fails in the next heavy rain. A replacement panel matched to your series runs on the low end of the $400 – $1,800 range, and we’ll give you the exact number before we start.
Most single-panel or flashing repairs on a Unilock roof in Woodland Hills take 2 – 4 hours, including setup and cleanup, and we’re typically done in one visit. If we find underlayment damage underneath, it may extend the job by a few hours for the section replacement. We’ll confirm the timeline and the written price before any work begins.
We stock the common Unilock panel profiles and the flashing components we install most often in Woodland Hills, which means many repairs can happen the same visit we diagnose them. For less common series or custom color runs, we source from Unilock’s Southern California distribution and usually have parts within the week. Call (341) 217-2776 with your model number or a photo and we’ll confirm availability before you book.
Written by Luca Romano, Owner, Sawyer Remodel Woodland Hills at Sawyer Remodel Woodland Hills, serving Woodland Hills and nearby areas.
