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 La Mirada
Roof repair in La Mirada usually runs between $350 and $1,800 depending on what’s actually failing, and most fixes on the tract homes here take our crew a single day once we’re on the roof. If you’re at the point where you’re putting a bucket under a drip or watching shingle granules pile up in your gutter, the honest answer is that waiting costs more than fixing. We’re Barnwood Roofing, and we work the 90637, 90638, and 90639 ZIP codes every week. Call (855) 382-1073 and we’ll tell you whether a repair is enough, or whether the roof has hit the point where patching it again is throwing good money after bad.

Why Barnwood Roofing Is La Mirada’s Preferred Roof Repair Company
We didn’t pick La Mirada as a service area on a map. We earned our way in. The first roof we repaired here was a 1959 ranch off Santa Gertrudes Avenue, and the homeowner had already been burned by a contractor who quoted a $22,000 full replacement for what turned out to be a $600 flashing repair. That’s the exact thing we don’t do. Ruben Calloway founded this company on a simple rule: inspection first, recommendation second. If your roof can be repaired for a fraction of replacement cost, we’ll say so plainly. If it can’t, we’ll show you why on the roof, with photos, in plain language.
We’re also one of the only crews working La Mirada that carries material access across seven manufacturers, so when we do recommend a product, it’s because it fits your roof and your budget, not because it’s what we happened to stock. That matters on the tightly uniform subdivisions here, where one neighbor’s visible re-roof tends to set off a run down the block. You should be able to compare GAF against CertainTeed against Owens Corning on price and performance, not take whatever the contractor has in the warehouse.
Styles & brands we work with






Commercial Roof Repair in La Mirada
Commercial Roof Repair in La Mirada looks different from the residential work most of this page covers. The shopping centers along La Mirada Boulevard and the low-slung office buildings near the 5 freeway run on built-up roofing and modified bitumen, not asphalt shingle, and they fail in ways a house roof doesn’t. We handle both. If you manage a commercial property in the 90638 corridor, or own one of the older retail strips down toward Imperial Highway, you already know what it costs when a membrane tear goes unnoticed: inventory damage, tenant complaints, and a repair bill that doubles because water sat for two weeks. Our commercial repair work runs from roughly $900 for a contained membrane patch to $4,500 for a multi-penetration repair with new flashing boots and sealant replacement across a larger roof area.
Flat and Low-Slope Membrane Repair
The commercial roofs around La Mirada’s business corridors are mostly low-slope, which means standing water is a fact of life. What isn’t a fact of life is your roof’s membrane handling that standing water after UV exposure has baked the surface for fifteen summers. We inspect the seams first, because seams fail before the field of the membrane does.
Penetration and HVAC Curb Sealing
Most of the commercial leaks we fix in La Mirada trace back to penetrations: the HVAC curb, the exhaust fan, the conduit run someone added five years ago with a bucket of caulk and a prayer. We strip old sealant, re-flash properly, and use two-part sealant systems rated for Southern California’s heat, not the one-part stuff that cracks within a year.
Roof Leak Repair in La Mirada
Roof Leak Repair in La Mirada is the service we run more than any other between October and March, when the first real rain after a Santa Ana stretch pushes water through dried-out flashing and cracked shingle. A leak that shows up as a small ceiling stain on the second day of rain has usually been working its way through the roof system for months. In La Mirada’s 1950s and 60s tract construction, leak repair most often means chasing failed flashing at a valley, a vent boot that’s lost its flexibility, or a section of underlayment that got brittle under decades of heat. Typical leak repair here lands between $350 and $1,200 depending on whether we’re replacing a single vent boot or opening a section of decking that’s started to rot.
Flashing and Valley Repair
Valleys concentrate water from two roof planes into one channel, and on La Mirada’s hip-and-gable tract homes, those valleys are exactly where we find dried-out, cracked, or improperly lapped flashing. This work typically runs $450 to $950 per valley, and we always inspect the underlayment beneath the flashing before we button it back up.
Vent Boot and Penetration Replacement
Plumbing vent boots and exhaust fan penetrations are the most common single-source leaks on homes in the 90637 and 90639 ZIP codes. The rubber gasket cracks from UV exposure, usually within 10 to 15 years. Swapping a boot costs $250 to $500, and it’s the rare repair that actually solves the leak in one trip.
Trusted Brands We Service in La Mirada
We install and repair roofs using products from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. On any given La Mirada repair, we’re likely to match your existing shingle with GAF Timberline or CertainTeed Landmark if the repair means blending new with old. Because we’re not tied to a single brand, a Leak Repair quote here isn’t inflated to hit a manufacturer’s program requirements or a warehouse turns target. We carry enough common repair stock for fast turnaround on La Mirada jobs, and anything special ordered for your specific shingle profile usually arrives within the week.

Common Roof Repair Problems We See in La Mirada Homes
- Embrittled shingles from UV baking. La Mirada sits just far enough inland that summer heat is relentless, and asphalt shingle from the 1990s and early 2000s loses its flexibility and granular coating faster than homeowners expect. By the time you see bare fiberglass mat, that section is done.
- Original skip sheathing failing under re-roofs. Homes built in the late 1950s and 60s often used skip sheathing, spaced boards instead of solid decking, and a shingle overlay done without addressing it means the new roof is only as solid as the day it was nailed down. We open sections during tear-offs to assess this before proceeding.
- Minimal attic venting trapping heat. The M.H. Sherman-era tract homes in La Mirada were built with far less attic airflow than modern codes require, which shortens shingle life on every layer, even the new one. Adding ridge or soffit venting during a repair or re-roof is one of the best money-to-performance moves available on these homes.
- Shallow fascia boards failing behind the drip edge. The original fascia on many 1950s-era La Mirada homes is thinner and narrower than what modern drip edge assumes. Wind-driven rain wicks behind the edge, the wood rots quietly, and then the new roof’s edge fails first. We check this on every repair that touches the eave line.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Repair in La Mirada, CA
Here’s honest pricing for the most common repair types we run in La Mirada. Small vent boot replacement: $250 to $500 per boot. Valley flashing and underlayment repair: $450 to $950 per valley. Localized leak repair with composite shingle patching: $350 to $1,200 depending on the size of the affected area and whether underlayment is involved. Flat roof patch on a low-slope section or patio cover: $400 to $1,400. The single biggest factor on La Mirada’s older tract homes is what we find once the damaged area is open, which is why we write allowances into every repair contract rather than hoping for the best. Call (855) 382-1073 and we’ll give you a written, itemized estimate before touching anything.
We Also Serve Cities Near La Mirada
Our crews work the surrounding area daily, so if you’re in South Whittier, East La Mirada, Buena Park, or Norwalk, you get the same crew, the same pricing structure, and the same straight answer whether it’s a repair or a re-roof. We cover the La Mirada area in full, plus most of the adjacent 90604 and 90621 corridors.
Serving La Mirada, CA — Our Local Coverage Area
We’re based in the La Mirada 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 La Mirada
Because the damage you can see from the ground tells you almost nothing about what’s underneath. On a 1962 single-story hip-and-gable tract home off La Mirada Boulevard in the 90638 core, our crew tore off three layers of failed asphalt shingle and found the original skip sheathing cracked and the fascia too shallow for modern drip edge, so we re-decked, added ice and water shield in the valleys, and cut in new ridge vent and soffit venting before laying architectural shingles. We priced the added decking and venting in writing and got approval before the first new board went down. That’s how we handle every job where the roof is older than the homeowner’s parents.
We write allowances into the contract for exactly this reason. If we open your roof and find the decking is toast, you’re not getting a surprise change order and a pressure call. You’re getting a line item you already knew about, priced in writing, and approved before we proceed. Call (855) 382-1073 if you want an estimate built this way.
Usually, yes. If the leak traces to a single failed vent boot, a valley flashing joint, or a cracked pipe collar, a targeted repair solves it and you don’t spend replacement money. In most cases we’ll recommend a repair that stops the water and buys you more years. The exception is when the leak has already rotted decking or the shingle field around the leak is visibly failing. We’ll show you photos and let you decide. Call (855) 382-1073 to schedule an inspection standalone, no obligation to book anything.
Maybe, but not automatically. La Mirada’s tract subdivisions were built in phases, so entire blocks of Original 1950s-60s homes hit end-of-life at roughly the same time. That’s why you see cascading re-roofs down a single street in the 90638. If your neighbor’s roof is the same age as yours and it failed, yours may be close behind, but the only way to know is an inspection of the shingle condition, attic side, and edge details. An inspection with us costs a flat fee and comes with no obligation to book work. Call (855) 382-1073.
Yes, and on La Mirada’s older tract homes it’s one of the most valuable things we do. The original builds were vented far below modern code, which means a like-for-like re-roof without added ridge vent and soffit venting traps heat under the new roof and shortens its service life by years. On any tear-off or large repair where we open the decking, we’ll quote adding proper venting separately, in writing, and explain why it’s worth the line item.
Yes. We handle commercial roof repair across the 90638 business corridor, including the retail and office buildings along La Mirada Boulevard and Imperial Highway. Commercial repair involves different materials and methods, built-up roofing, modified bitumen, membrane systems, and we price it accordingly. Call (855) 382-1073 and ask for a commercial inspection. A small membrane patch today costs far less than a tenant improvement claim after a leak.
Get Your La Mirada Roof Repair Estimate
If you’ve got a leak, a missing shingle, or just a hunch something’s wrong up there, the next step is simple. Call (855) 382-1073 and ask for Ruben Calloway’s crew. We’ll inspect the roof, tell you exactly what we found, and give you a written estimate that treats you like an adult who can handle the truth. Inspections are standalone, repairs are core to what we do, and we never push a replacement when a repair is the honest answer. Serving all of La Mirada, 90637, 90638, and 90639.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving La Mirada and surrounding communities.