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 Irwindale
Roof repair in Irwindale usually runs between $350 and $1,800 depending on what’s actually failing up there, and most jobs on the residential side of 91722 take one to two days once we’re on the roof. If you live in the older pockets off Arrow Highway or near the 605, you already know what the quarry dust does to gutters and flat sections. We do too. Van Nuys Roofing Co has been working on Irwindale homes long enough to know that the grit from the aggregate operations settles on your roof, works its way into drains and scuppers, and turns a small clog into a rotted deck if nobody catches it. Call (866) 321-6172 and we’ll come out, get on the roof, and tell you exactly what’s happening before you spend a dollar on repairs.
Why Van Nuys Roofing Co Is Irwindale’s Preferred Roof Repair Company
Most roofers around here push one brand because that’s what their supplier discounts. We don’t work that way. Our crew is fluent in GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, which means when we inspect an Irwindale roof, the recommendation is based on what your house actually needs and what your budget can honestly support. On a 1960s low-slope in the residential pocket north of the 210, that might mean a CertainTeed rolled membrane for the flat section. On a pitched front gable off Foothill Boulevard, an Owens Corning architectural shingle could make more sense. We inspect first, recommend second.
Irwindale homeowners call us because we’re straightforward about repair versus replacement. If a section of flashing failed and the decking underneath is still solid, we’ll tell you that and patch it. If the deck is spongy from years of dust-clogged scuppers backing water into the eaves, we’ll tell you that too, and show you the photos. No scare tactics, no upsell. Rick Dominguez runs every project with the same instruction: give the homeowner the facts, price the work fairly, and let them decide.
Styles & brands we work with






Commercial Roof Repair in Irwindale
Commercial roof repair in Irwindale is a different animal from what most residential roofers are set up to handle, because this city’s building inventory splits between sprawling warehouse and industrial flat-roof systems and the smaller older homes scattered through the 91722 ZIP. The flat built-up and metal roofs on Irwindale’s commercial stock take a beating from the same fine aggregate dust that hits houses, but at a much larger scale. Drains, scuppers, and downspouts on commercial roofs clog with abrasive sediment, water ponds, and membrane or cap-sheet failure follows. We handle those repairs in-house: patching built-up roof sections, replacing cap sheets, clearing and resetting scupper systems, and repairing metal-panel seams before they open up.
Flat and Low-Slope Membrane Repair
Most of what we do on Irwindale commercial roofs involves finding where dust accumulation has choked drainage and forced water into the system. We repair the damage, then address the drainage path so the same failure doesn’t come back in eighteen months. Property owners near Rivergrade Road and the quarry side of town deal with this more intensely than anyone else in the San Gabriel Valley.
Metal Roof Panel and Seam Repair
Warehouse roofs with standing-seam metal or exposed-fastener panels fail where factory seams open up or fasteners back out under wind and heat cycling. We replace gaskets, reseal laps, and patch localized rust-through. On a roof that still has decent life in the panels, that kind of targeted work can buy years without a full rebuild.
Roof Leak Repair in Irwindale
Roof leak repair in Irwindale starts with finding where water is actually entering, which is rarely where the stain on the ceiling suggests. With the amount of airborne grit settling on roofs here, a clogged drain or scupper on a low-slope or flat section is the most common culprit we find. Water backs up behind the clog, sits against seams and flashings, and works its way down. By the time you see a ceiling stain in a 1950s tract home, the damage underneath has usually been brewing for months.
Scupper and Drain Restoration
We clear the blockage, inspect the surrounding membrane and decking, and replace whatever the standing water compromised. On Irwindale homes with flat rolled sections, this often means cutting out a strip of failing roofing, drying or replacing damp decking, and tying a new membrane back into the existing shingle lines at the transition.
Flashing and Valley Repair
Where pitched sections meet walls, chimneys, or flat transitions, failed flashing lets water follow the roof plane down into the house. We reset and reseal flashings, replace rotted pipe collars, and re-lay valley metal in shingle valleys where grit and sun have eaten through the old work.
Trusted Brands We Service in Irwindale
When we write a repair or replacement scope for an Irwindale home, we have seven major manufacturers to spec from: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters because it keeps us honest. A single-brand shop has one answer for every roof. We have seven, and we’ll tell you which one actually fits your roof’s slope, sun exposure, and the dust load it carries. Need a specific GAF shingle matched on a 1970s bungalow? We’ll source it. Want CertainTeed’s membrane warranty terms on a flat section that’s been baked by San Gabriel Valley UV? We’ll walk you through eligibility. Your roof, your material choice. That’s the whole point.
Common Roof Repair Problems We See in Irwindale Homes
- Dust-clogged scuppers and drains. The fine grey aggregate dust from Irwindale’s quarry operations settles into every low point on a roof, fills scuppers and downspouts, and forces water to pond. That ponded water rots decking at the perimeter of low-slope sections faster than anything else we see in the 91722 ZIP.
- UV-baked composition shingles on shallow pitches. Many Irwindale homes were built in the 1940s through 1970s with shallow-pitch roofs and relatively cheap original shingles. Decades of intense inland heat and Santa Ana wind have shed granules to the point where underlayment is exposed and leaks are inevitable.
- Failed transition flashing between pitched and flat sections. Irwindale’s older residential stock often combines a shingled main roof with a flat rolled section over an addition or back patio. Where those two systems meet, the flashing gets stressed by differential movement and heat, and water gets in at the seam.
- Rot at the perimeter from backed-up water. When scuppers clog and water ponds at a low-slope edge, the decking along the eave line rots. Opening these repairs often reveals the rot extends further than a homeowner could see from below, which is why we flag and price decking replacement at inspection before any work begins.
See the difference
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AfterPricing for Roof Repair in Irwindale, CA
A minor flashing or vent boot repair in Irwindale typically runs $350 to $700. Leak repairs that involve opening a section of roof, replacing membrane or underlayment, and addressing clogged scuppers or drains land between $700 and $1,400. Larger scopes that include replacing rot-damaged decking, resetting transitions between pitched and flat sections, or repairing a segment of a built-up commercial roof run $1,400 to $1,800 and up. The variables are roof access, how much decking is compromised, and whether the repair crosses between shingle and flat systems. We give written line-item estimates with allowances for framing or decking surprises so you know the worst case before we start. Call (866) 321-6172 to schedule a free inspection and get real numbers for your roof.
We Also Serve Cities Near Irwindale
Our Roof Repair team covers Irwindale and the surrounding foothill cities, including Covina, Azusa, Citrus, and West Covina. If you’re just over the line from Irwindale and wondering whether we’ll come out, the answer is yes. Every one of these areas deals with its own version of the same San Gabriel Valley dust and heat, and we know the housing stock in each. Call (866) 321-6172 and we’ll get you scheduled whether you’re off Arrow Highway or further east toward Glendora.
Serving Irwindale, CA — Our Local Coverage Area
We’re based in the Irwindale 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 Irwindale
Because the quarry and aggregate operations in Irwindale put fine grey rock dust into the air, and that dust settles on every horizontal surface including your roof, where it washes into drains, scuppers, and downspouts and packs into a cement-like layer. Roofers in Covina or Azusa see some of this, but not at the concentration Irwindale gets. The fix is to clear the clogged path and then address whatever water damage the blockage caused. Call (866) 321-6172 if you want us to take a look before another rain event backs water into the decking.
Yes, if the roofer writes the quote honestly. We open a repair with an allowance in the written contract for decking replacement and waterproofing upgrades, and we take photos of everything we find before we touch anything beyond the original scope. On a 1950s low-slope home off Irwindale Avenue, our crew found dust-clogged scuppers had backed water under a failed rolled section, with the original decking showing rot at the perimeter. We replaced the damp decking, laid new underlayment and ice and water shield at the transitions, reset the flashing and drip edge, and tied a fresh membrane back into the existing architectural shingles. Every item was flagged and priced in writing at inspection. That’s how it should always work.
It can. When a repair opens up walls or decking and reveals outdated wiring, undersized framing, or failed waterproofing, the city may require those conditions to be corrected to current code before the work can be closed up. This is a common surprise on Irwindale’s mid-century housing stock. We identify likely code-trigger issues during our inspection and include an allowance in the contract so the price doesn’t move on you without written approval. For an exact read on your roof, call (866) 321-6172 for a free inspection.
Yes, and this is exactly the kind of mixed-system roof Irwindale’s older homes tend to have. We repair composition shingles, flat rolled membranes, and the transition flashings between them. You won’t need to coordinate two contractors or have one company patch the shingles while another argues about the flat section. One crew handles the whole roof. Call (866) 321-6172 and we’ll walk the roof with you and show you what’s actually failing.
Ask every roofer to line-item the scope: decking replacement per sheet or square foot, underlayment, membrane and flashing replacement, reframing if needed, and permit and code-upgrade allowances. Then compare apples to apples. We write bids that way by default because a lump-sum “roof repair” number tells you nothing. Irwindale’s dust and UV exposure mean some roofs need more decking replacement than a similar house in a cleaner neighborhood, and a good bid shows exactly where your money goes. Call (866) 321-6172 and we’ll give you a written, line-item estimate for free.
Schedule Your Free Roof Repair Estimate in Irwindale
If your roof is leaking, your gutters are full of grey grit, or you just want an honest assessment of what’s still solid up there, call Van Nuys Roofing Co at (866) 321-6172. We’ll come out to Irwindale, get on the roof, take photos, and give you a written inspection with real numbers. Seven leading brands, one crew that knows them all. Your roof, your material choice. Repair or replace, we’ll tell you which one actually makes sense.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Irwindale and the San Gabriel Valley.