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
Trusted Roofing Company for Los Angeles Homeowners
Finding a roofing company in Los Angeles you can actually trust starts with knowing who will show up at your door. That’s the problem we built Mercer Roofing Co Los Angeles around. Before any technician arrives, we send you their name and photo. When they ring the bell, they’re in a clean, marked uniform with a photo ID badge. Grant Whitlock leads our team, and since our founding in 2000 as part of the Threshold Group family, every job has started the same way: a written price before any work begins. Call (213) 521-8272 to talk to a live person, any hour, any day.
Roofing Contractor
A roofing contractor is a licensed professional who installs, repairs, and maintains roofs, and in Los Angeles you want one who understands how sun, Santa Ana winds, and the rare heavy rain each stress your roof differently. Our Roofing Company in Los Angeles handles the full range of roofing work, from a small repair on a shingle to a full tear-off and replacement. Most homeowners in Los Angeles pay somewhere between $150 and $1,200 for targeted repairs, while full replacements typically run from $8,000 to $25,000 depending on roof size, slope, and material. We work with GAF, CertainTeed, Owens Corning, and Boral shingles, all installed to the manufacturer’s specifications.
When You Need a Licensed Roofing Contractor
If a leak has reached your ceiling, the time to call is before the next rain, not after. Small water stains in Los Angeles often trace back to failed flashing around chimneys or roof valleys, and catching that early keeps the repair under $500 instead of turning into decking replacement.
Contractor Standards in Los Angeles
Mercer Roofing Co Los Angeles operates under the Threshold Verified standard. Every technician is background-checked, identity-verified, and dispatched with a photo badge, so you never open the door to an unverified stranger.
Styles & brands we work with
Roof Inspection
A roof inspection is a systematic check of your roof’s shingles, flashings, underlayment, decking, and drainage, recommended once a year in Los Angeles or after any major storm or earthquake. Mercer Roofing Co Los Angeles performs a full inspection that ends with a written report, including photos of any issues we find, so you can see exactly what we saw. Most residential roof inspections in Los Angeles run between $0 and $150, and we waive the inspection fee if you hire us for the repair. Given how hard the sun beats on roofs in the San Fernando Valley and across the city, annual inspections are cheap insurance against surprise leaks.
What We Check
We inspect every roof penetration, which is where most Los Angeles roofs fail. That includes vents, pipes, chimneys, skylights, and the flashing around each one. We also check for granule loss on shingles, cracked seals, and decking rot in low spots.
After the Inspection
You get a written report you keep, not a sales pitch you forget. If we find problems, we show you photos and give you a written price for the repair. You decide what happens next.
Commercial Roofing
Commercial roofing covers flat and low-slope roof systems on warehouses, storefronts, apartment buildings, and mixed-use properties, and Mercer Roofing Co Los Angeles handles them with the same written-price, badge-at-the-door standard we bring to homes. A small commercial patch in Los Angeles might run $400 to $1,200, while a full commercial roof replacement on a typical flat roof can range from $12,000 to $45,000 depending on square footage and the roof system. We service single-ply membranes, built-up roofing, and modified bitumen systems, and we always provide a written price before any commercial work starts.
Flat Roof Systems We Service
We handle Thermoplastic Polyolefin (TPO) and Ethylene propylene diene monomer (EPDM) single-ply membranes, which are common on commercial buildings across Los Angeles. Each material expands and contracts differently under Los Angeles heat, and we match the patch or replacement material to your existing system.
Minimizing Business Downtime
We schedule commercial work around your loading hours and foot traffic where possible. A live person answers our phone 24/7, so when a commercial property manager calls with an active leak at 6 a.m., they reach a human being.
Metal Roof Installation
Metal roof installation involves attaching standing seam or corrugated metal panels over your roof deck with a system of clips, fasteners, and flashing, and it’s a job that rewards precise, careful workmanship. Mercer Roofing Co Los Angeles installs metal roofs that stand up to the Los Angeles sun without the shingle granule loss that affects asphalt systems. Metal roof installation in Los Angeles typically runs from $14,000 to $32,000 for an average home, depending on panel profile, roof complexity, and whether we remove the old roof first. A metal roof can last 40 to 70 years, which means you may never replace it again.
Metal Roof Types We Install
We install standing seam panels, which are the most common metal roof choice for Los Angeles homes. Standing seam panels use hidden fasteners, which means fewer exposed screws and fewer future leak points.
Why Metal Works in Los Angeles
Metal reflects more solar heat than asphalt, which helps keep attics cooler during the city’s long hot summers. Homeowners in neighborhoods like West Hollywood and Lennox often ask about this, and the reflectivity is a real, measurable benefit, not a sales line.
Residential Roofing
Residential roofing covers everything on a single-family home, from shingle repair to full tear-off and replacement to flashing and underlayment work, and that’s the core of what Mercer Roofing Co Los Angeles does. A few missing shingles in Los Angeles might cost $150 to $400 to replace, while a full residential roof replacement on a typical two-bedroom home runs $8,000 to $18,000. We install GAF, CertainTeed, Owens Corning, and Tamko shingles, and every residential repair includes a written guarantee that’s valid for a full year.
Shingle Repairs
Los Angeles sun degrades shingle sealant over time, especially on south-facing slopes. That’s why we see more blown-off shingles in Gardena and Roofing Company - Bell than in shadier neighborhoods. We match the shingle color and profile to what you have, and we nail through the nailing strip at the right depth so the repair lasts.
Full Roof Replacement
When the decking is sound but the shingles are shot, a tear-off and replacement is the right call. We protect your landscaping with tarps, remove the old roof, inspect the decking for rot, and install new underlayment before the shingles go down. You see the written price before we order a single shingle.
Roof Maintenance
Roof maintenance is the scheduled cleaning, sealing, and inspection work that catches small problems in Los Angeles before they become expensive leaks, and Mercer Roofing Co Los Angeles does it on a schedule that fits your roof’s age and material. Most homeowners in Los Angeles budget $200 to $700 per year for professional roof maintenance, depending on roof size and access. That’s far less than the $1,500 to $5,000 you’d spend on a major leak repair. We clear debris from valleys and gutters, check and reseal flashings, and document your roof’s condition each visit.
Seasonal Maintenance in Los Angeles
The best time for roof maintenance in Los Angeles is late summer and early fall, before the rainy season starts. Clearing leaves from valleys and gutters in neighborhoods like Walnut Park and Commerce keeps water flowing where it’s designed to go.
What Maintenance Includes
Our maintenance visits always include a written summary of what we did and what we saw. If we spot something that will become a problem, we tell you then, with a price. You decide when and whether to schedule it.
Roof Coating
Roof coating is a protective liquid-applied membrane that seals your roof surface, reflects solar heat, and extends the life of an existing roof, and it’s one of the most cost-effective services we offer in Los Angeles. Mercer Roofing Co Los Angeles applies silicone and acrylic roof coatings on both residential and light commercial roofs. Roof coating in Los Angeles typically runs $1.50 to $4.50 per square foot installed, so a 1,500 square foot roof might cost $2,250 to $6,750. A quality coating can add 10 to 15 years to a roof that’s still structurally sound.
Silicone vs. Acrylic Coatings
Silicone coatings handle ponding water better, which matters on flat roofs in neighborhoods like Bell Gardens and our Roofing Company in Lynwood. Acrylic coatings are more affordable and reflect heat well. We look at your roof’s slope and drainage and recommend the coating that fits.
When Coating Makes Sense
Coating is a strong option on an older roof that isn’t leaking but has lost its granule surface or shows early cracking. If the decking is rotten or there’s significant moisture under the membrane, coating won’t fix it. We tell you if coating is the right fix or if a real repair is needed first.
Free Roof Estimate
A free roof estimate is a written, itemized price for the exact work your Los Angeles roof needs, given to you before you commit to anything, and that’s how every Mercer Roofing Co Los Angeles job starts. We inspect the roof, take measurements, and then put the full price on paper, including materials, labor, and any decking or flashing work. The free roof estimate is exactly that: free, with no obligation. You keep the written estimate whether you hire us or not, and the price on that paper is the price you pay if we do the work.
What the Estimate Covers
Every estimate includes the specific shingle brand and color, the number of squares we’ll install, and a line item for any decking replacement we expect. You’ll see flashing costs, underlayment costs, and haul-away costs as separate lines, so you know what you’re paying for.
How to Schedule Yours
Call (213) 521-8272 and a live person answers, day or night. We’ll schedule a time that works for you, and before the technician arrives, you’ll receive their name and photo. No strangers at your door. Ever.
See the difference
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AfterBrands We Service
We’re experienced with GAF shingles, the most widely installed shingle brand in Los Angeles, and we know their Timberline and architectural lines in depth. Proper GAF installation requires exact nailing patterns and the right underlayment, and we build every GAF roof to those specifications, preserving the manufacturer’s warranty. From ridge caps to starter strips, our teams know where GAF roofs fail in Los Angeles heat and how to prevent it.
We also service CertainTeed and Owens Corning roofs extensively. CertainTeed’s Landmark and Presidential lines show up on many homes in the hills and valleys around Los Angeles, and Owens Corning’s TruDefinition and Duration lines are common across Burbank and Roofing Company in South Gate. Whether you have any of these brands or another make altogether, we can inspect it, repair it, and give you a written price for whatever it needs.
Signs You Need a Pro Right Now
- Water stains on ceilings or walls. In Los Angeles, a water stain often means a leak has already worked through the shingles, underlayment, and decking. The longer water sits in the decking, the more expensive the fix becomes.
- Granules in your gutters or downspouts. Shingle granules are the roof’s sunscreen. When they wear off, the shingle left behind is brittle and sun-damaged. Finding a heavy layer of granules in your gutter means the shingles are shedding and losing protection.
- Missing, cracked, or curling shingles. Shingles curl and crack in Los Angeles sun, especially on south-facing sections. One missing shingle is a vulnerable point where water can enter during the next rain.
- Sagging areas on the roofline. A sagging roofline is usually a sign of wet or rotten decking underneath the shingles. This is beyond a simple patch and needs a contractor to open the section and inspect it.
- Daylight visible in the attic. If you go into the attic in the daytime and see light through the roof boards, water has a direct path inside. This also means your underlayment has failed and needs attention.
Our Process, Step by Step
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Call and talk to a real person. When you call (213) 521-8272, a live person answers, 24/7. You describe the problem, and we schedule a time that works for you. Before the technician arrives, you receive their name and photo by text or email.
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Badge-at-the-door arrival. Your technician arrives in a clean, marked Mercer Roofing uniform with a photo ID badge. They introduce themselves and confirm their identity with the badge. People sometimes tell us this is the moment they knew they’d called the right company.
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The inspection. Your technician climbs the roof, takes photos, and checks the shingles, flashing, underlayment, and decking condition. They show you what they find, in plain English, not roofing jargon. You see the problem, not just hear about it.
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The written price. You get a written, itemized price before any work starts. It covers materials, labor, and any repairs found during the inspection. No work begins until you approve the price in writing.
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The work, then the guarantee. We complete the work, clean up, and walk you through what was done. Every repair includes a written 365-day guarantee. If the repair fails within a year, we come back and fix it free. That’s our 365-Day Done Right Promise.
How Much Does Roofing Company Cost in Los Angeles?
A typical shingle repair on a home in Los Angeles runs $150 to $1,200, depending on whether it’s a few shingles or a larger flashing repair. A full roof replacement on a standard Los Angeles home runs $8,000 to $25,000, driven mostly by roof size, shingle choice, and whether the old roof comes off first. A roof inspection is usually $0 to $150. Roof maintenance runs $200 to $700 per year. A roof coating runs $1.50 to $4.50 per installed square foot. Metal roof installation runs $14,000 to $32,000 on a typical home, and commercial roofing work is quoted per project, with most commercial replacements falling between $12,000 and $45,000.
What moves the price most in Los Angeles is the roof’s slope and accessibility. Steep roofs and two-story homes take more time and safety setup. The shingle brand matters too: premium lines from CertainTeed or GAF cost more than entry-level shingles, but they carry longer material warranties. The only way to know your exact price is a written estimate, which we provide free. To avoid overpaying, get the price in writing and ask what’s included. A written line-item estimate prevents the “it ended up costing more” problem. Every free estimate from Mercer Roofing Co Los Angeles includes the full scope, the materials, and the total price before you sign anything. Links to everything we do are right on our home page.
Our Service Area Near Los Angeles
Mercer Roofing Co Los Angeles serves the whole city, from West Hollywood to Lennox, and the surrounding communities across the county. Homeowners in Burbank, Bell Gardens, Bell, and Gardena call us regularly for repairs and full replacements. We also work throughout South Gate, Lynwood, Walnut Park, Commerce, and Del Aire. If you’re not sure whether you’re in our service area, call (213) 521-8272 and ask. A live person will tell you right away.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Roofing Company in Los Angeles
A roofing company is a licensed business that installs, repairs, and maintains roofs. In Los Angeles, Mercer Roofing Co Los Angeles handles everything from a single missing shingle to a full commercial roof replacement, always with a written price before work starts. Our roofing company is part of the Threshold Group family, founded in 2000, and every technician is background-checked and photo-badged.
A targeted shingle repair or flashing fix typically takes one day on site. A full residential roof replacement in Los Angeles usually runs 2 to 5 days, depending on the home’s size and roof complexity. The exact timeframe for your roof is covered in your free written estimate.
A small repair runs $150 to $400, larger repairs run up to $1,200, and a full roof replacement usually falls between $8,000 and $25,000. Roof inspections run $0 to $150, and maintenance runs $200 to $700 yearly. Call (213) 521-8272 for an exact quote on your specific roof, free.
Yes, we service GAF, CertainTeed, Owens Corning, Tamko, Atlas, and Boral roofs. Our teams know the nailing patterns and installation requirements for each manufacturer, and we build or repair to the brand’s specifications. If we work on a roof that’s under warranty, we preserve the warranty by following the manufacturer’s requirements.
Yes, a live person answers our phone 24 hours a day, 7 days a week. If your roof is actively leaking during a storm, call (213) 521-8272 and describe the problem. We’ll get you scheduled, and we don’t leave you waiting on a voicemail.
Every roof repair from Mercer Roofing Co Los Angeles includes a written 365-day guarantee. If the repair fails within that year, we come back and fix it at no charge, including a free second visit. Full roof replacements carry the manufacturer’s material warranty plus our workmanship standing behind the install.
Clear the driveway and any walkways we’ll need to access, and move vehicles out of the work zone if possible. Keep pets inside, and if anyone in the household has questions, our technician will walk them through the visit before climbing up. You don’t need to move furniture or do anything inside the house.
Schedule Your Roofing Company Service in Los Angeles Today
You’ll know the name and face of your technician before they arrive, you’ll have a written price before any work starts, and every repair is covered by a 365-day guarantee. That’s how Mercer Roofing Co Los Angeles protects your home. Call (213) 521-8272 now for your free, no-obligation roofing estimate.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles, serving Los Angeles since 2000.