Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Monrovia
Roof repair in Monrovia typically runs $350 – $1,400 for targeted fixes like shingle replacement, flashing repair, or leak sealing, and most jobs wrap up same day. We work across the 91016 and 91017 zip codes, from the Craftsman bungalows near Old Town up into the foothill streets where oak and deodar cedar canopies sit right on top of the roofline. If you’ve got a leak after Santa Ana winds or a ridge shingle that let go, call Hollywood Roofing Co at (833) 589-7971 and we’ll get a crew out to assess it. No pressure, just an honest look at what your roof actually needs.
We’re not a faceless outfit queueing jobs from three counties away. Our Roof Repair team works Monrovia regularly, and Roland Vega, who leads Hollywood Roofing Co, keeps our approach simple: diagnose the failure, match the material, fix it once. Monrovia’s mix of 1920s wood-shake roofs, mid-century composition shingles, and newer tract builds under HOA oversight means every repair has a context. Understanding that context is the difference between a patch that lasts and one that fails at the next wind event.
Why Hollywood Roofing Co Is Monrovia’s Preferred Roof Repair Company
We’ve repaired enough roofs in Monrovia to know which failures show up where. In the flats below Foothill Blvd., newer tract homes lose ridge and valley shingles to Santa Ana wind uplift, not age. Up in the foothill lots, moss and debris accumulation cause slow leaks around valleys and flashing that homeowners don’t notice until the drywall stains. Our crews in Monrovia carry material samples from all seven brands we install so a repair matches the existing roof without a week of back-and-forth with a distributor.
Because we install across GAF, CertainTeed, Owens Corning, and four other brands, we’re not pushing you toward whatever happens to be on our shelf. If your roof has GAF Timberline shingles, we repair with GAF Timberline. If it’s CertainTeed XT with a transferable warranty, we preserve that by matching manufacturer specs and nail patterns. This matters in Monrovia’s HOA-governed communities, where a visible mismatch can trigger an architectural review headache.
Homeowners in the 91016 and 91017 zip codes regularly tell us they’d rather pay for a repair that matches than a re-roof that fights the HOA. We understand that, and we quote accordingly. Roland Vega runs jobs on a simple principle: inspect first, explain the condition honestly, then repair only what needs repairing. That’s why we also offer roof inspection as a standalone service if you just want a clear picture before the rainy season hits.
Styles & brands we work with






Emergency Roof Repair in Monrovia
Emergency Roof Repair in Monrovia usually starts with a call after a Santa Ana wind event has torn shingles off the ridge or lifted a section of flashing. We respond fast to storm-related failures because exposed underlayment over a Monrovia home means the next rain turns a $400 repair into a $4,000 ceiling and drywall claim. A same-day emergency call in the 91016 or 91017 area typically runs $450 – $900 for shingle replacement, temporary tarping, or ridge vent re-securing, depending on access and how much of the slope is involved.
Ridge And Valley Wind Damage
Santa Ana winds hit Monrovia’s north-south ridges hard. Builder-grade shingles on newer tract homes are often nailed to a basic pattern that meets code but doesn’t hold at the ridge cap when gusts hit 60 mph. We replace the missing shingles, install a proper starter strip, and re-secure the ridge vent so the next wind event doesn’t simply repeat the failure.
Leak Containment And Tarping
If water is already coming through into a bedroom ceiling or garage, the immediate priority is stopping entry, not a full repair. We carry heavy-duty tarping and sealant on our Monrovia trucks and can get a temporary water barrier in place fast, then schedule the full repair once the area is dry and we can match materials properly. A tarp-and-temporary-seal call in Monrovia runs $350 – $550.
Flat Roof Repair in Monrovia
Flat Roof Repair in Monrovia tends to focus on modified bitumen and torch-down systems on the 1950s – 1970s homes and some hillside ramblers. These roofs fail most often at seams and around parapet walls, where Monrovia’s intense summer UV breaks down the membrane and winter rain finds the splits. We patch flat roof areas without requiring a full tear-off when the underlying substrate is sound, and we’ll tell you straight when it’s not and a targeted repair would just be postponing the inevitable.
Seam And Parapet Repairs
Flat roofs leak at the seams first, and parapet walls are the usual culprit. We open up the failing seam, clean the area, and re-flash or re-seal it with material compatible with the existing membrane. Figure $500 – $1,200 for a typical seam repair on a Monrovia flat roof, depending on how much of the edge needs work.
Ponding Water And Drainage Corrections
Monrovia’s winter rain can pond on flat roofs that have settled over the decades. If the ponding area is small, we typically build up the low spot with a compatible patch and re-direct water to the existing drain. Larger ponding problems mean more than a repair, and we’ll show you photos and measurements so you can make the call with real information, not guesswork.
Trusted Brands We Service in Monrovia
We install and repair across seven major roofing brands, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Monrovia’s newer communities below Foothill Blvd., we stock GAF Timberline and Owens Corning Duration long on our local trucks because those are the two most common builder-installed shingles. That means shorter turnaround when a wind event tears shingles off, and it means we can match your existing roof’s color and profile without ordering from a warehouse. Seven leading brands, one honest recommendation.
See the difference
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AfterCommon Roof Repair Problems We See in Monrovia Homes
- Santa Ana wind uplift at ridges and valleys. Newer homes in Monrovia’s tract developments often lose shingles at the ridge cap and valley transitions during wind events, not because the shingles are old but because the original nailing pattern didn’t account for 130 mph gusts. The fix requires matching the manufacturer and re-fixing with the proper pattern.
- Moss and debris buildup on shaded foothill slopes. The California live oaks and deodar cedars that give Monrovia its character also drop continuous debris onto roofs, trapping moisture that accelerates shingle granule loss and, on older homes, feeds dry-rot in wood sheathing. Foothill repairs often include clearing built-up debris before any patch goes down.
- Flashing failures at chimneys and skylights. In Monrovia’s 1900s – 1940s bungalows, original galvanized flashing has outlived its useful life by decades. We see frequent leak calls from Old Town homes where the chimney flashing has corroded through, letting water run down the brick and into the attic.
- Multi-layer roofs reaching the end of their service life. Many Monrovia homes built between the 1920s and 1980s are on their second or third layer of roofing. A repair on a multi-layer roof can be done, but any leak investigation has to account for water traveling between layers, which makes diagnosis slower and more methodical.
Pricing for Roof Repair in Monrovia, CA
Shingle replacement in Monrovia runs $300 – $750 for a small area, while valley and flashing repairs typically land between $500 and $1,200. Flat roof patches run $500 – $1,200, and full ridge cap re-securing on a newer tract home can push $900 – $1,400 when there’s multiple sections involved. Factors that move the price in Monrovia include slope steepness in the foothills, HOA-required material matching, whether the roof is on a second or third layer, and access constraints around trees or narrow hillside driveways. Every estimate is a free, written line-item quote, and we never change the number once the job starts unless the scope changes with your sign-off. Call (833) 589-7971 to schedule your free estimate.
We Also Serve Cities Near Monrovia
Our crews work the San Gabriel Valley foothills continuously, so Roof Repair in Monrovia extends naturally to Mayflower Village, Duarte, Bradbury, and Arcadia. If you’re in a neighboring community and facing a roof problem, the same brand-matching expertise and honest repair-first philosophy applies. Call us and we’ll tell you straight what needs fixing and what can wait.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Roof Repair in Monrovia
Yes, if the repair matches the original manufacturer’s shingle type, color, and installation spec, your builder warranty should remain intact. We verify the original material before we touch anything and only use compatible components, including starter strips and nail patterns that meet the wind rating. Call (833) 589-7971 and we’ll confirm what’s on your roof before quoting.
The most common issues are wind uplift at ridges and valleys during Santa Ana events, improper flashing at roof-to-wall transitions, and nail pops from thermal expansion. These are installation and weather interaction problems, not material failures, which means targeted repair is usually the right call. Call us for an honest assessment before paying for a full replacement.
If the repair changes the visible appearance of the roof, most Monrovia HOAs require architectural review before work begins. Matching the existing shingle color and profile is often enough to make the review straightforward, and we can document the match for your submission. If you’re unsure, call (833) 589-7971 and we’ll walk you through the process.
Santa Ana winds, intense summer UV, and winter rain cycles stress newer asphalt shingles by causing thermal expansion and wind uplift at the edges, especially on west-facing slopes. Repairs need high-temperature sealant and wind-rated nailing to hold through the next season. Our local crews know which slopes in the 91016 and 91017 zip codes take the most weather and we plan repairs accordingly.
Yes, we repair flat roofs on Monrovia homes using material compatible with the existing membrane, whether it’s modified bitumen, TPO, or torch-down. Seam and parapet repairs are the most common flat-roof jobs we handle in Monrovia, and most are finished in a day. Call (833) 589-7971 and we’ll tell you if your flat roof is a candidate for repair or needs more extensive work.
We recently repaired a roof in the 91016 zip code where a builder-grade GAF Timberline shingle had blown off a ridge during a Santa Ana wind event, exposing the underlayment. Our crew replaced the damaged shingles, added a proper starter strip and secured the ridge vent, then matched the shingle color to maintain the HOA’s architectural approval and keep the builder warranty intact. That’s the kind of repair Monrovia’s newer homes need most, and it’s exactly the work we do.
In Monrovia’s newer tract homes below Foothill Blvd., the original builder-grade asphalt shingles often fail first at the ridge and valleys due to Santa Ana wind uplift, not age. Repairs must match the original manufacturer, whether that’s GAF, CertainTeed, Owens Corning, IKO, Atlas, or Tamko, to preserve any transferable warranty. We carry all seven brands for exactly this reason.
Written by Roland Vega, Owner at Hollywood Roofing Co, serving Monrovia and the San Gabriel Valley since 2010.