Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Roofing Across Monrovia
If you need roofing work in Monrovia, the cost and the permitting path depend heavily on where your house sits. A roof replacement in the flatland bungalow district south of Foothill Boulevard follows standard San Gabriel Valley rules. A roof two miles north in the foothills off Canyon Boulevard triggers California Chapter 7A fire-resistant material mandates, debris-flow drainage review, and a different inspection timeline entirely. We’ve been doing both kinds of jobs in Monrovia long enough to know which one you’re on before we knock on the door.
Barrett & Sons Construction has served Monrovia homeowners for decades. Tom Barrett runs the company, his sons run the crews, and every roof we install or repair comes with a written scope, written change orders, and our 90-Day Done Right Promise. Call (877) 610-1318 for a free estimate. A live person answers, not a call center.
Why Barrett & Sons Construction Is Monrovia’s Preferred Roofing Company
We work differently than the big national roofing outfits. When you call us about a roof in Monrovia, you’re talking to someone who knows that a 1920s Craftsman on North Canyon Boulevard has a very different roof structure than a 1970s hillside home off Ridgeside Drive. That matters when we’re pricing a tear-off, because old Monrovia bungalows often have skip sheathing under the shingles, and that means re-sheathing costs some companies forget to put in the quote. Then you get hit with a surprise change order. We put it in the estimate up front.
Tom Barrett’s name, address, and license number are published and verifiable. Look us up before you sign anything. We’ve been owner-operated since 1998, and the person who shakes your hand at the estimate is the same person accountable if something isn’t right. The 90-Day Done Right Promise is written on every contract: if the work isn’t done right, one call brings Tom back.
We answer the phone 24/7, including during Santa Ana wind events when Monrovia homeowners are staring at lifted flashing or a leak peeling through the living room ceiling. Background-checked crew members who carry the Barrett & Sons name show up in uniform, and every price change arrives as a written change order before work proceeds. No surprise invoices. No mystery allowances. That’s the way we’ve done it in Monrovia for years, and it’s why people on your street will tell you to call us.
Our Roofing Services in Monrovia
Roof Repair
Roof repair in Monrovia typically runs $400 to $1,800, and most repairs we do are concentrated around two things: failed flashing at roof penetrations and wind-lifted shingles along ridges and eaves. The Santa Ana winds that funnel down Monrovia Canyon hit foothill roofs harder than anything in the flat valley. A loose course of shingles off Myrtle Avenue becomes a torn-off section when 60 mph gusts get under it. We inspect the whole roof when we repair, not just the obvious spot, because a second failed area a few feet away is common after wind events here.

Roof Replacement & Installation
A full roof replacement in Monrovia runs $8,000 to $20,000 depending on material, pitch, and whether your home sits in the Chapter 7A zone north of Foothill Boulevard. If it does, that price range assumes Class A ignition-resistant materials, ember-resistant vents, and the appropriate underlayment. If it doesn’t, you’re paying for a standard tear-off and re-roof. We’ll confirm which category your home falls into before we quote anything, because guessing wrong puts you in front of a failed inspection.

Metal Roofing
Metal roof installation in Monrovia runs $15,000 to $40,000. Standing seam metal is the practical choice for many foothill homes here. It meets Class A fire resistance requirements without relying on chemical treatments, it holds up to wind better than asphalt on exposed ridges, and it sheds embers instead of catching them. We recently installed a standing seam metal roof off Ridgeside Drive where the old asphalt shingles had failed along the ridge line. Santa Ana winds had lifted the flashing repeatedly over the years, and the tile-to-metal transition needed a debris-flow drainage detail because the lot sits below a canyon drainage channel. That’s a Monrovia-specific job if there ever was one.

Tile Roofing
Tile roof repair in Monrovia runs $600 to $2,500 for most jobs. The Period Revival homes from the 1920s and 1930s in Monrovia’s flatland core often have original barrel tile or mission tile roofs that have outlasted two or three owners. Matching the original profile matters on those homes. We’ll source tile that matches the existing curve and patina rather than slapping on whatever’s on the shelf, because a mismatched patch on a 1920s Period Revival roof looks wrong for decades.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Monrovia
We install GAF and CertainTeed roofing systems on Monrovia homes, and we’re certified to work with both. Those are brands you can look up, not mystery materials off the back of a van. We also stock common flashing, vent, and underlayment components locally so a repair doesn’t wait on a distributor three counties away. When a Red Flag warning hits Monrovia and you’ve got water coming through the ceiling, we don’t want to tell you the part arrives Thursday.
Common Roofing Problems We See in Monrovia Homes
- Santa Ana wind damage along ridges and eaves. The wind that channels down Monrovia Canyon hits foothill roofs with sustained gusts that lift flashing and tear shingles. We see this on nearly every hillside inspection after a major wind event.
- Ember intrusion in foothill roof assemblies. Homes north of Foothill Boulevard that still have old box vents or uncertified underlayment fail Chapter 7A inspections on re-roof. Swapping those vents is a common change order we try to catch before the permit is pulled, not after.
- Skip sheathing on pre-1940 Monrovia bungalows. Craftsman and Period Revival homes from the 1910s through the 1930s often have spaced board sheathing rather than solid plywood. A re-roof without re-sheathing creates a soft deck and voids most manufacturer warranties. We flag it in the estimate.
- Debris-flow drainage conflicts on hillside lots. Many Monrovia foothill roofs sit below canyon drainage channels. The city requires drainage compliance review and sometimes a soils engineer letter before a roofing permit is approved. Contractors who don’t know this end up with a stop-work order. We build the review time into our schedule from day one.
Pricing for Roofing in Monrovia, CA
Here’s what roofing actually costs in Monrovia, based on the work we’ve done here. These are honest ranges, not teaser prices designed to get a foot in the door.
| Service | Typical Cost in Monrovia |
|---|---|
| Roof Repair | $400 - $1,800 |
| Roof Replacement | $8,000 - $20,000 |
| Metal Roof Installation | $15,000 - $40,000 |
What moves a roof replacement toward that $20,000 end in Monrovia? Steep hillside pitch, a Chapter 7A material mandate north of Foothill Boulevard, skip sheathing that needs to come out, and access problems. A constrained lot with no staging room means our crew works differently: a lift gate on the street, materials brought up in small loads, and a debris chute into a dumpster parked on the only flat patch of driveway. That takes more labor and more hours. We’ll show you the line items in writing before you approve anything. Call (877) 610-1318 for a free estimate. No trip charge inside the county.
We Also Serve Cities Near Monrovia
Barrett & Sons Construction serves Monrovia and the surrounding communities, including Mayflower Village, Duarte, Arcadia, and Sierra Madre. If you’re in a neighboring city and need Roofing work, we bring the same written change orders and on-site accountability. Not every page on this site covers every city, but this one covers Roofing in Monrovia specifically, and we’d rather over-explain than under-quote.
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 - Roofing in Monrovia
Yes. If your home sits in the Very High Fire Hazard Severity Zone north of Foothill Boulevard, any roof replacement must meet California Chapter 7A standards regardless of when the house was built. That means Class A ignition-resistant roofing, ember-resistant vents, and the specified underlayment. Existing homes are not grandfathered when the roof gets replaced. Call (877) 610-1318 and we’ll check your parcel against the city’s hazard zone map before we quote anything.
We stage on the street with a lift gate, bring materials up in small loads, and use a debris chute into a dumpster placed on the most stable flat area of your driveway. On tight foothill lanes, that often means the dumpster sits on the only flat patch available and we work around it. We keep the lane open for neighbors and fire access at all times. That’s not a courtesy; it’s a Monrovia foothill requirement, and a contractor who blocks the road up here gets a visit from the city quickly.
No. Flatland homes south of Foothill Boulevard, including most Craftsman and Period Revival stock in the 91016 ZIP, follow standard roofing permit rules. The debris-flow drainage review applies to parcels in the foothill zones where the city requires drainage compliance after the post-Station Fire sediment events. Your 1920s Craftsman won’t need a soils engineer letter. A home off Ridgeside Drive probably will.
Yes. We source replacement tile to match the existing curve, size, and patina on Monrovia’s Period Revival homes. That means measuring the original tile radius and finding a source that matches rather than using a modern profile that’s close enough. On a 1920s roof, close enough shows. We’d rather spend the time matching the tile than leave you with a visible patch for the next two decades.
During Red Flag conditions, sustained winds channel down Monrovia Canyon and hit foothill roofs with gusts that lift flashing, tear shingles, and drive embers into any gap in the roof assembly. We answer calls 24/7 during these events. If you’ve got water coming through the ceiling or shingles lifting, call (877) 610-1318 immediately. We’ll tell you what to do to slow the damage and get a crew out. For emergency tarping or board-up work, we can usually help the same day. For a full re-roof, we’ll schedule it properly with the right permits.
Call Barrett & Sons for Roofing in Monrovia
Your ZIP code tells us a lot about your roof before we ever climb a ladder. 91016 flatland or 91017 foothill, that one number determines whether you need Chapter 7A fire-rated materials, debris-flow drainage review, or just a standard permit. We know the difference, and we’ll quote you accurately the first time. This is Roofing done by an owner-operated company that puts everything in writing. Call us at (877) 610-1318 for your free estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Monrovia since 1998.







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