Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Installation Across Cerritos
A full roof installation on a Cerritos ranch home typically runs $14,500 to $31,000 for architectural shingles, and $28,000 to $52,000 for standing seam metal, depending on tear-off requirements, pitch, and decking condition. Most Cerritos jobs take 2 to 5 working days once materials are staged. Call (743) 200-8347 for a written quote before any work starts.
We know Cerritos roofs because we work on them every week. The city’s housing stock isn’t like neighboring Norwalk or Artesia. Almost all of it was built between 1968 and 1985, from the same handful of tract developers, using the same low-slope ranch layouts. That means the roofs here fail in predictable ways, and we scope them accordingly. If you’re near Cerritos Towne Center, over by Whitney High, or in the tracts off Bloomfield Avenue, we’ve likely already roofed a house on your block.
Every visit starts with a written price. No work begins without one. And the technician who shows up sends their name and photo before they arrive, then badges in at the door. That’s the Threshold Standard, and it’s how we’ve operated since 2000, founded as part of the Threshold Group family of home-service companies.
Why Mercer Roofing Is Cerritos’s Preferred Roof Installation Company
Cerritos homeowners call us because we put the price in writing before the first nail is driven. Not an estimate range that drifts. A line-item price. If the decking is rotted, if the underlayment is shot, if the ridge caps are crumbling, you’ll know exactly what it costs before we start. No change orders on the back end.
Our reputation in Cerritos is built on the 365-Day Done Right Promise. If the work isn’t right within a year, we make it right. That’s a written guarantee on every installation, not a verbal assurance. And if a repair fails, the second visit is free. Grant Whitlock leads our team, and he holds every crew to that standard.
Response time to Cerritos matters. Our crews stage materials from the brand’s Los Angeles dispatch office and serve Cerritos locally. When you call, a live person answers, 24/7. Not a voicemail. Not a callback form. A human who can schedule your free estimate.
Shingle Roof in Cerritos
Shingle Roof installation in Cerritos almost always means a full tear-off, because most of the city’s homes are hitting the 40 to 50 year mark on their original or second-generation composition shingles. We install architectural shingles from GAF, CertainTeed, and Owens Corning, among others. A full shingle roof on a typical 1,800 to 2,400 square foot Cerritos ranch runs $14,500 to $26,000. Larger split-levels with attached garage roofs and low-slope porch tie-ins run toward the $31,000 end.
We start with the underlayment. Cerritos’s low pitches, commonly 2:12 to 4:12, punish weak underlayment. Decades of layered patches hide decking rot and failed felt. If we don’t tear off to the decking, the new shingles inherit the old roof’s problems.
What the tear-off involves
Tear-off on a Cerritos ranch means removing all layers down to the plywood or skip sheathing, inspecting for rot along the eaves and valleys, and replacing damaged decking before underlayment goes down. We lay ice and water shield through all valleys, pipe boots, and penetrations. Drip edge at every eave and rake. Then architectural shingles with a 130 mph wind rating for the Santa Ana gusts that funnel through the 91/605 corridor.
When a Cerritos homeowner needs a full replacement
Curling shingles, granule loss in the gutters after summer heat, and water staining on ceiling drywall near the ridge are the three most common calls we get. The heat loading 12 to 15 miles inland accelerates granule loss faster than in beach cities. If your roof is past year 35 and the granule cover is thin, a full replacement usually costs less over the next decade than piecemeal repairs.
Standing Seam Metal Roof in Cerritos
Standing Seam Metal Roof installation in Cerritos is a long-term play. Homeowners choose it because a 24-gauge steel standing seam panel roof will outlast two shingle cycles and hold up to the Santa Ana winds without a single lifted shingle. Expect to pay $28,000 to $52,000 on a Cerritos ranch, depending on panel gauge, the number of valleys and transitions, and whether we’re tearing off concrete tile or composition shingles first.
The pitch matters. Standing seam performs well on low slopes down to about 1:12, which suits Cerritos’s 2:12 to 4:12 rooflines. But the panel profile and seam height have to be specified for that pitch. We don’t just order panels and hope. We measure every eave, rake, and valley transition before quoting.
Metal versus tile on a Cerritos ranch
Original concrete tile on Cerritos homes looks nice until the mortar ridge caps crack and the Santa Anas start lifting tiles. Standing seam eliminates ridge mortar entirely. No caps to crack. No individual tiles to blow off. The tradeoff is cost and the look, which some HOAs have opinions about. We’ll tell you what works and what doesn’t before you sign anything.
Panel gauges and finish options
We quote 24-gauge steel with Kynar 500 PVDF finishes in standard colors. If you want 22-gauge for added dent resistance on a house with overhanging trees, we’ll quote it. Every standing seam job gets a written price and the same 365-Day Done Right Promise as a shingle roof.
Trusted Brands We Service in Cerritos
We install and repair shingle systems from GAF, CertainTeed, and Owens Corning, and we’re factory-familiar with Atlas, Tamko, and Boral. That matters in Cerritos because the city’s housing stock runs the full range: original concrete tile from the 1970s, second-generation composition shingles from the 1990s and 2000s, and newer architectural shingles. We keep common flashing profiles, underlayment, and drip edge stocked for Cerritos jobs, so when a supply house in the LA basin runs short, we’re not the crew sitting idle. If you want a specific brand, say so. We’ll quote it.
Common Roof Installation Problems We See in Cerritos Homes
- Aging mortar ridge caps on original concrete tile. The mortar shrinks, cracks, and separates from the tile. Santa Ana wind events then lift the caps, open the ridge line to water, and scatter pieces into the yard. The fix is a full ridge rebuild or, more often, a full replacement if the underlayment below has been taking water for years.
- Layered patch repairs hiding inadequate underlayment. A roof with three layers of patches and two generations of shingles looks like a bargain repair candidate. But on a 2:12 pitch, water pools and moves sideways. Overlay bids fail. Cerritos roofs in this condition need full tear-off to the decking.
- Step flashing at porch and garage tie-ins that was never counter-flashed. This one detail shows up block after block in Cerritos tracts. The original builder’s step flashing works for a decade, then the sealant fails, and water wicks behind it. If the flashing isn’t counter-flashed properly during the install, the leak comes back within a few years.
- Decking rot along eaves and valleys from marine-layer moisture. Cerritos sits close enough to the coast that morning marine layer cycles moisture through aging roof penetrations. By the time shingles curl, the decking along the eaves often has soft spots. We quote decking replacement per sheet before we start, so the written price already covers it.
Pricing for Roof Installation in Cerritos, CA
Here is what to budget for a Cerritos roof installation. Architectural shingle tear-off and install on a typical 1,800 to 2,400 square foot ranch: $14,500 to $26,000. Larger split-levels with multiple roof planes and the classic low-slope porch tie-in: $24,000 to $31,000. Standing seam metal over composition tear-off: $28,000 to $44,000. Standing seam over concrete tile tear-off, which includes the heavier dump and disposal: $38,000 to $52,000. Concrete tile re-roof on a 1970s original: $31,000 to $48,000.
The wildcards we scope before quoting: decking replacement, which runs $85 to $120 per sheet that has to come out; underlayment grade, which matters more on a 2:12 pitch than on a 5:12; and the condition of the step flashing assemblies at porch and garage tie-ins. Outbuildings, detached garages, and ADUs add their own roofs to the quote, each typically $6,000 to $12,000 depending on size and pitch. Call (743) 200-8347 for a free written estimate.
Cerritos was converted from Dairy Valley farmland to residential tracts almost entirely between 1968 and 1985. What that means for your roof is specific: an outsized share of the city’s low-slope ranch roofs are hitting the 40 to 50 year replacement threshold at the same time. Neighboring Norwalk, Lakewood, and Artesia have staggered housing stock. Cerritos has a synchronized re-roofing wave. We plan our Cerritos scheduling around it.
We replaced the original concrete tile on a 1972 ranch off McNab Avenue near the Cerritos Towne Center. The mortar ridge caps had failed and the step flashing behind the porch tie-in was never counter-flashed. That’s a detail we find leaking block after block in that tract. We tore off to the decking, laid ice and water shield through the valleys and penetrations, set new underlayment and drip edge, and reset the tile with proper counter-flashing, so the same failure can’t repeat on the next Santa Ana wind event.
Because so many Cerritos homes were built by the same handful of tract developers in a tight window, we consistently find the same construction detail across entire neighborhoods: a shallow-pitch porch or garage roof tied into the main roofline with a step flashing assembly that was never properly counter-flashed. It leaks in virtually identical ways on house after house. When we quote a Cerritos roof, we already know what we’ll find under the shingles. That prior knowledge is the difference between a written price that holds and a surprise invoice later. Learn more about our Roof Installation process.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Cerritos and surrounding Los Angeles County communities.
We Also Serve Cities Near Cerritos
Beyond Cerritos, our crews cover Artesia, La Palma, Hawaiian Gardens, and Norwalk. If you’re a few blocks over the city line, the same written-price policy, the same badge-at-the-door technicians, and the same 365-Day Done Right Promise apply. Call (743) 200-8347 and we’ll schedule a free estimate for your roof.
Serving Cerritos, CA - Our Local Coverage Area
We’re based in the Cerritos 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 Installation in Cerritos
Because Cerritos was built almost entirely between 1968 and 1985 from Dairy Valley farmland. That tight construction window means a huge share of the city’s roofs are the same age, all hitting the 40 to 50 year replacement threshold within the same decade. The original concrete tile and second-generation composition shingles from that era were never designed to last past 50 years, and many are failing now. Call (743) 200-8347 for a written quote before the next storm season.
Yes. Cerritos ranch homes commonly have 2:12 to 4:12 rooflines, and on pitches that low, water moves sideways instead of shedding straight off. That means underlayment grade, valley construction, and flashing details matter more than on a steeper roof. We install ice and water shield through all valleys and penetrations, use drip edge at every eave, and specify underlayment rated for low-slope application. On a 2:12 pitch, we also recommend full tear-off rather than overlay because the old underlayment is almost always compromised. Call (743) 200-8347 for a free written estimate.
The shallow-pitch porch and garage roofs tied into the main roofline were originally built with a step flashing assembly that was never counter-flashed. The sealant fails after a decade or so, water wicks behind the flashing, and the same leak appears in the same spot on houses across entire subdivisions. During installation, we counter-flash every tie-in properly so the failure can’t repeat. Call (743) 200-8347 to have us look at your tie-in flashing.
We measure every roof plane on the lot, not just the main house. Detached garages, ADUs, patios, and storage buildings each get their own line item in the written quote. A typical outbuilding roof runs $6,000 to $12,000 depending on size and pitch, and we’ll tell you if it makes more sense to repair than replace. No work starts until you have the full written price for every structure. Call (743) 200-8347 for a free estimate that covers the whole lot.
Yes, when it’s installed with the right underlayment and wind-rated fastening. Cerritos sits 12 to 15 miles inland and takes serious UV loading in summer, plus Santa Ana gusts that funnel through the 91/605 corridor. We install architectural shingles rated to 130 mph wind, with ice and water shield in valleys and at penetrations, and we hand-nail where the manufacturer requires it. The combination means the roof won’t fall apart when the heat and wind hit. Call (743) 200-8347 for a written quote.
Get Your Written Roof Installation Estimate in Cerritos
You don’t have to live with a roof that’s past its replacement window. Call (743) 200-8347 and we’ll send a background-checked, photo-badged technician to your Cerritos home with a written price for the entire job. No work starts without it. No surprises on the invoice. And if the work isn’t right within 365 days, we make it right. That’s the Done Right Promise, and it’s in writing on every roof we install.