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Unilock Roofing: The Pasadena Owner’s Guide
We stock and install Unilock-compatible roofing components across Pasadena, with typical replacement work running $800 – $2,500 depending on the scope. Most homeowners call us after spotting water staining on a ceiling or finding granules from a worn section collecting in a gutter. The good news: if you’ve caught it early, we can usually match the part and schedule a fix the same week, not the same month.
Unilock isn’t a roofing manufacturer in the traditional shingle sense. When we hear “Unilock roofing” in Pasadena, it’s almost always a paver-topped roof deck or terrace system where Unilock pavers sit over a waterproof membrane and drainage layer. The pavers themselves rarely fail. What fails is the stuff underneath: the drainage mat, the flashing at the parapet wall, or the pedestal supports that hold each paver level. That’s the part most Pasadena owners discover the hard way, usually after a winter rain pools where it shouldn’t.
Sawyer Remodel Pasadena is an independent service provider and not affiliated with Unilock. We work with their paver systems regularly because Unilock is common on flat roof decks across older Pasadena neighborhoods.
Which Unilock Models This Applies To
Unilock makes several paver lines that show up on Pasadena roof decks and terraces. The ones we see most often are the Umbriano and Series lines, but we’ve also worked with Brussels Block and Richcliff on residential roofs. The paver itself is usually fine. The part that matters is what’s supporting it.
If you’re trying to identify your system, flip up a corner paver near the roof edge. You’ll see one of two setups: a pedestal support system (small adjustable plastic discs that hold each paver at the corners) or a sand-set bed over a drainage mat. The pedestal systems are more common on newer roofs and easier to repair. Sand-set systems cost less up front but fail more dramatically in Pasadena because our hot, dry summers bake the sand and our winter rains wash it toward the drains.
One compatibility gotcha we run into constantly: pedestal heights are not universal. Unilock decks built before roughly 2015 often used fixed-height pedestals from a single supplier. If one pedestal cracks and you can’t find the exact height, you may need to swap the whole section rather than one corner. That’s a $200 problem that becomes a $1,200 problem if someone guesses wrong. We check the pedestal model number stamped on the underside before quoting anything.
For the OEM-versus-aftermarket question: Unilock doesn’t make the drainage mats, pedestals, or waterproofing membranes under their pavers. They partner with suppliers. So “OEM” isn’t really the right word here. What matters is matching the spec: drainage mat thickness, pedestal load rating, membrane compatibility. We use proven aftermarket components that meet or exceed the original spec, which keeps your roof deck performing without paying a brand premium for a part Unilock didn’t manufacture.
Styles & brands we work with
Signs Your Unilock Roofing Is Failing
- Water pooling in one area after rain. This is the most common first symptom. The drainage mat below the pavers is clogged with sediment, or the roof deck’s original slope has settled. If water sits for more than 48 hours after a storm, the membrane below is working overtime and will eventually give.
- Pavers that rock or tilt underfoot. A cracked pedestal or a washed-out sand bed is the culprit. One loose paver is a trip hazard. Three or more in a cluster tells us water is moving under the system and eroding whatever is supporting the pavers.
- Efflorescence streaking down a parapet wall or exterior stucco. That white, chalky residue means water is getting trapped under the pavers and leeching minerals out of the concrete or mortar. In Pasadena’s dry heat it can look harmless. It’s not.
- Ceiling stains or peeling paint on the room directly below the deck. By the time you see this, the waterproofing membrane has already failed. The pavers above might look perfect. Don’t wait.
- Grit or sand washing out of the deck drains after rain. On sand-set systems, this is the system literally draining away. Each storm pulls a little more bedding out, and eventually the pavers lose their support entirely.
See the difference
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AfterReplacement Cost & What’s Included
For a Unilock roof deck repair in Pasadena, expect to pay $800 – $2,500 for most localized fixes. That covers lifting and re-setting pavers, replacing failed pedestals or re-screeding a sand bed, and spot-repairing the membrane where needed. A full tear-out and rebuild of the drainage system on a larger deck starts around $3,500 and goes up from there based on square footage, pedestal type, and access. Roof work in Pasadena often requires a permit and, on a two-story home, safety railing for our crew; we pull permits when required and factor that into the written price.
Every quote from Sawyer Remodel Pasadena is a written, line-item price before any work starts. The number you approve is the number you pay, no change orders unless we find something structural once we open things up, and if we find it, we stop and show you before spending another dollar. Our 365-Day Done Right Promise applies to every Unilock deck repair: if the fix doesn’t hold, we come back and make it right within a year. In writing.
DIY or Call Us?
You can safely inspect your own Unilock deck. Lift a corner paver, check for cracked pedestals, feel for sand that seems loose or washed out, and look at the drain outlets after rain. That kind of inspection costs nothing and helps you describe the problem accurately when you call.
Where DIY goes wrong is guessing at the fix. Roof deck systems, like roofing itself, rely on integrated layers: membrane, drainage, support, paver. If you patch the paver but miss the drainage failure underneath, you’ve bought yourself a few months. And any work on a rooftop deck involves fall risks and waterproofing tricks that aren’t worth learning on your own roof. The work tells you everything, as Luca Romano likes to say; you just have to know how to listen to it. He’s been reading roofs across Pasadena for two decades, from Bungalow Heaven craftsman homes to newer builds in the hills.
If the deck looks fine but you want a professional assessment, we’ll come out, inspect it, and tell you honestly whether it needs work. Call (626) 657-5396 for a free estimate.
FAQs
The pavers themselves will last 30 to 50 years. The drainage mat and pedestals underneath typically last 10 to 20 years, and in Pasadena’s UV-heavy summers, plastic pedestals can get brittle on the shorter end of that range. The membrane below is usually warrantied for 10 to 20 years depending on the product. Call (626) 657-5396 if you don’t know the age of your system; we can inspect it and give you an honest remaining-life estimate.
Most localized failures can be repaired without rebuilding the whole deck. If one or two pedestals have cracked and the membrane is sound, we lift the pavers, swap the damaged supports, and reset everything the same day. Full replacement is only necessary when the drainage layer has failed across the deck or the membrane has multiple breaches. Call (626) 657-5396 for a free inspection and an exact answer on your deck.
Most localized repairs, like replacing a handful of pedestals or re-screeding a small area, take one day. Larger drainage system replacements run two to three days depending on deck size and weather. We’ll give you a written timeline with your quote so you know exactly what to expect.
We keep common pedestal heights, drainage mats, and membrane patch kits on our trucks, and we have stock relationships for the specific Unilock paver lines we see in Pasadena. For rare or discontinued paver colors, we can source matching or near-matching replacements, and we’ll show you options before ordering. Call (626) 657-5396 and tell us what you’ve got; we’ll tell you if it’s a same-week fix.
Written by Luca Romano, Owner & Lead Contractor, Sawyer Remodel Pasadena at Sawyer Remodel Pasadena, serving Pasadena and nearby areas.
