Architectural shingles
Metal roofing
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 Replacement Across La Mirada
Roof replacement in La Mirada typically runs $9,800 – $18,500 for a standard single-story ranch or split-level, with architectural shingle work on mid-century tract homes landing between $11,500 and $16,000 most weeks. Flat roof sections over patios, additions, and detached structures add $7 – $12 per square foot depending on membrane choice and decking condition. If you’re calling from a neighborhood between Biola Avenue and the 5, or up toward the Puente Hills side of town, we can usually have a specialist walk your roof within 48 hours. Call (855) 382-0485 to schedule a free replacement estimate.

We know this city’s roofs because we’ve torn off enough of them to recognize the tract-plan repeat patterns. The original 1950s and 60s homes in the flat sections of La Mirada were framed with the same rafter spacing, the same low-slope patio tie-ins, and the same starter-strip nailing habits. That means we scope a replacement here differently than we would in Buena Park or Norwalk. You get a bid built for the house you actually own, not a square-footage formula.
Why Select Roof Repair Is La Mirada’s Preferred Roof Replacement Company
We’re a roofing-only contractor. That’s the entire trade. Our crews don’t pour concrete, hang drywall, or run electrical. We tear off, re-deck, flash, and install roofs, and we’ve been doing it long enough that La Mirada homeowners call us when the second bid they got doesn’t account for something we flagged in the first walk. Noel Carrasco runs our field team, and he still walks the steepest and worst-condition roofs personally before we quote the job.
The seven-brand material portfolio helps here more than anywhere. A tract home near La Mirada High School with a standard 4:12 pitch needs a different shingle than a split-level near the hills with a low-slope addition and a flat sunroom. We spec from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so the recommendation follows your roofline and your budget, not whatever single brand we have in the yard. That’s the whole point of the name Select.
We’re familiar with every ZIP in La Mirada: 90637, 90638, and 90639. We know that homes north of Rosecrans Avenue sit closer to the fault zone and show more decking movement. We know that homes south of Imperial Highway in the older tract section tend to be second-generation re-roofs where the original plywood is salvageable but the starter strips aren’t. That local pattern recognition saves you money on the front end and spares you a re-roof failure three years in.
Styles & brands we work with






Flat Roof Replacement in La Mirada
Flat Roof Replacement in La Mirada usually means re-roofing a low-slope patio cover, a converted sunroom, a detached garage, or the flat section of a mid-century ranch where the architect tied the carport into the main gable. The job involves tearing off the old membrane or built-up layer, checking the plywood or OSB decking for dry rot and deflection, replacing what’s failed, and installing a new single-ply or modified bitumen membrane with proper flashing at every wall tie-in and penetration. Most La Mirada flat sections run $7 – $12 per square foot for a full tear-off and replacement, with small detached garage roofs often landing between $2,800 and $5,500 complete.
Scoping the Underlayment Before the Membrane
The biggest mistake we see on La Mirada flat roofs is skipping the decking inspection before the new membrane goes down. On homes where the flat section was added in the 1960s or 70s, we routinely find particleboard or thin plywood that’s absorbed moisture from the Santa Ana dry-heat expansion cycles. If you put a new membrane over it, the seams open within two seasons. We replace it first.
Flat Sections Over Patios and Sunrooms
La Mirada ranch homes often have a flat or near-flat patio roof that ties into the main sloped roof. These sections need ice and water shield through the transition, drip edge at the outer perimeter, and a membrane that can handle standing water during the winter rainy season. We bid them as a separate line item so the quote doesn’t blur the flat section into the shingle square-footage price.
Roof Installation in La Mirada
Roof Installation in La Mirada covers full replacement on an existing home, a new roof on a detached ADU or shop, and occasionally new construction on an infill lot. On the older tract homes, a complete install usually means stripping one or two layers of asphalt shingles, re-nailing or replacing decking that’s lost its grip, installing new drip edge and valley metal, laying synthetic underlayment, and finishing with architectural shingles and ridge vent. A standard 1,600 – 2,000 square foot ranch replacement in the 90638 or 90639 ZIP runs $11,500 – $16,000. New construction or a detached structure priced separately will land higher depending on complexity.
The Decking Re-Level Step Most Bids Skip
Near the Puente Hills, the clay soils have moved enough on some original tract homes that the roof planes are out of true. We check for that before we ever order shingles. When we find it, we sister or re-secure the rafters and re-level the decking so the new roof doesn’t re-crack along the ridge within a season. That’s not an upsell. It’s the difference between a warranty we can stand behind and one that won’t matter because the failure was structural.

New Roofs on Detached Shops and ADUs
La Mirada has more detached garages, workshops, and converted ADUs than most of the surrounding cities, especially on the larger lots east of Valley View Avenue. We scope those as separate structures in the bid: separate decking inspection, separate underlayment, separate flashing details. The main house and the outbuilding rarely need the same material or the same slope treatment. We don’t fold them into one square-footage number and hope it works out.
Trusted Brands We Service in La Mirada
We install and service roofs from the full range of major manufacturers we stock: CertainTeed, Owens Corning, IKO, and Atlas are the most common on La Mirada re-roofs, with GAF architectural shingles holding up well on the slope-and-ridge corrected homes we’ve done near the hills. Because we carry materials from all seven brands, there’s no wait on a special order for a discontinued color match or a specific wind-rated shingle for a Santa Ana-exposed ridgeline. If you already have a brand preference from a previous home or a neighbor’s re-roof, tell us during the estimate and we’ll spec the job around it.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in La Mirada Homes
- Ridge cracking from clay-soil settling. Homes built in the 1950s and 60s on the fault-side clay soils near the Puente Hills often show cracked shingles along the ridge line. The roofline itself has shifted, and shingles installed over that plane crack within two winters no matter the brand.
- Failed low-slope patio and addition sections. Original tract homes frequently have patio covers and bump-out additions with near-flat pitches. Those sections get shingled incorrectly on budget re-roofs, and the first concentrated rainy season exposes the mistake at the wall tie-ins.
- Starter-strip and ridge vent nailing that doesn’t meet wind spec. Santa Ana winds hit exposed ridgelines hard, and older installations often used too few fasteners. We see shingle blow-offs concentrated along the edges on the same homes that show ridge cracking.
- Decking fatigue on the original 50-year-old plywood. Many 90637 and 90638 homes still have original sheathing that’s delaminated or lost its nail grip. Shingles installed over it won’t hold their fasteners long-term, and the decking has to be re-secured or replaced before the new roof goes on.
Pricing for Roof Replacement in La Mirada, CA
A full tear-off and replacement on a typical La Mirada ranch runs $11,500 – $16,000 for architectural shingles. Steeper split-levels near the hills run $14,000 – $18,500. Flat roof replacement on a patio or small addition runs $2,800 – $5,500 as a standalone job, or $7 – $12 per square foot when scoped alongside a main roof. The variables that move your price: decking condition, number of layers being torn off, whether the roof planes need re-leveling, and any detached structures on the lot. Every quote we give in La Mirada is a written line-item estimate, and the price you see is the price you pay. Call (855) 382-0485 to schedule yours.
We Also Serve Cities Near La Mirada
Select Roof Repair handles Roof Replacement across the southeast LA County corridor. We work in South Whittier, East La Mirada, Buena Park, and Norwalk, and we’re already out in La Mirada most weeks. If you’re in one of the neighboring cities and need a roofing-only crew, the same phone number applies.
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 Replacement in La Mirada
We scope the main house and every detached structure separately. A garage or ADU gets its own decking inspection, its own underlayment and flashing spec, and its own line item on the quote. That matters on La Mirada’s larger lots, where the detached structure often has a lower pitch or a flat section that needs different materials than the main roof. Call (855) 382-0485 and mention the outbuildings when you schedule your estimate.
Yes. Homes built on the fault-side clay soils can have roof planes that are out of true, and that changes both the scope and the price. We check for it during the walk, and if the decking needs re-leveling or the rafters need re-securing, that’s a line item in the quote, not a change order later. A crew that skips this step will put new shingles over an out-of-plane deck and you’ll see ridge cracking within two seasons. Call (855) 382-0485 for an estimate that accounts for it.
Put them side by side and check three things. First, does the bid itemize decking replacement or re-leveling, or is it buried in a vague “as needed” line? Second, does it specify the underlayment brand and the flashing details at walls, valleys, and penetrations? Third, does it separate flat sections and detached structures, or is everything priced at one blended square-footage rate? If a bid can’t answer those three, it’s not a real scope. Ours always does. Call (855) 382-0485 and we’ll price your roof properly.
We install from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. On most La Mirada re-roofs we spec CertainTeed or Owens Corning architectural shingles, with GAF on wind-exposed ridgelines and IKO or Atlas on budget-driven teardowns. The choice follows your home’s pitch, exposure, and decking condition, not whatever we happen to have in the yard. Call (855) 382-0485 and we’ll walk through the options for your roof.
The ridge cracking comes from roof planes shifting out of alignment as the clay soils settle and move. On a ranch-style home off Biola Avenue, our crew tore off a second-generation asphalt layer and found the ridge cracked and roof planes out of plane from that exact settling. We re-secured and sistered decking, ran ice and water shield through the valleys and along every penetration, set new drip edge and fascia, and finished with GAF architectural shingles on a corrected ridge line with ridge vent. The fix is structural, not material. Call (855) 382-0485 for an inspection if you’re seeing cracked shingles along the ridge.
Written by Noel Carrasco, Owner at Select Roof Repair, serving La Mirada and the surrounding cities with roofing-only expertise.