Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Santa Fe Springs
Most roofing work in Santa Fe Springs isn’t happening on residential shingle roofs. It’s happening on the flat, low-slope warehouse decks that make up the city’s industrial backbone. A commercial roof leak here typically means water getting in around rooftop HVAC curbs or exhaust stacks, and the fix usually costs $450 – $1,200 per penetration when caught early. If you need a Roofing Company that understands the difference between a 1960s ranch home and a 200,000-square-foot distribution center, call Grant Whitlock and our Mercer Roofing team at (743) 200-8347. We dispatch crews to Santa Fe Springs from our Los Angeles office, and a live person answers the phone around the clock.
Why Mercer Roofing Is Santa Fe Springs’s Preferred Roofing Company
Santa Fe Springs homeowners and facility managers call us because we solve the problem most roofers ignore: you never know who’s showing up at your door. Grant Whitlock runs our crews under the Threshold Verified standard, which means every technician is background-checked, identity-verified, and arrives in a marked uniform with a photo ID badge. We send you the technician’s name and photo before they pull up, so you know exactly who’s walking onto your property. No guessing. No stranger-at-the-door moment.
Our Santa Fe Springs customers tell us the same thing over and over: they’ve had roofers quote one number and invoice another. That doesn’t happen with Mercer. Every job starts with a written price before a single nail is driven, and every repair carries a written 365-day guarantee. If the fix fails within a year, we come back free. Grant Whitlock has been holding the Mercer team to that standard since our founding in 2000, as part of the Threshold Group family of home-service companies. We answer the phone live, 24/7, because a roof leak at 2 a.m. over a warehouse full of inventory shouldn’t wait for a call-back form.
Commercial Roofing in Santa Fe Springs
Santa Fe Springs runs on commercial roofing. The city’s warehouse and manufacturing footprint vastly outweighs its residential base, so most of the roofs we service here are flat or low-slope membrane systems: TPO, EPDM, and modified bitumen laid over aging built-up roofing from the 1970s through the 1990s. Those old BUR roofs are reaching the end of their service life right now, and the telltale sign is a roof that leaks in the same general area every time it rains or whenever the Santa Ana winds kick up. A full membrane replacement on a mid-sized Santa Fe Springs warehouse typically runs $6 – $9 per square foot, while targeted penetration repairs run $450 – $1,200 each depending on curb size and flashing condition. We pull equipment curbs, replace rotted blocking, install new flashing and membrane, and get the roof watertight before the next heat wave hits.
HVAC Curb and Penetration Flashing
The single most common leak source on Santa Fe Springs commercial roofs is the field of rooftop HVAC units, exhaust stacks, and conduit runs that every warehouse deck carries. Every one of those penetrations is a potential water entry point. Proper flashing around equipment curbs is a commercial-roofing skill set that purely residential crews simply don’t have. We cut back old membrane, replace rotted wood blocking, install new flashing and sealant, and tie the new membrane up and over the curb so water sheds away from the opening, not into it. When we see a warehouse roof that’s been patched repeatedly in the same spots, it’s almost always failed penetration flashing underneath.
Membrane Replacement for Aging Flat Roofs
Santa Fe Springs sits far enough inland that summer temperatures routinely push past 100°F. That heat accelerates UV degradation and thermal cycling on flat roofs far faster than what coastal cities experience. A TPO or EPDM membrane that might last 25 years in Long Beach can fail years earlier here. We do full tear-off and replacement where the old BUR is saturated, and we do recover systems where the existing membrane is still structurally sound. Either way, the price is written before work starts. We include new perimeter flashing, new penetration flashing, and a written guarantee on every installation. You’ll know the cost per square foot before we order the first roll of membrane.
Metal Roof Installation in Santa Fe Springs
Metal roof installation in Santa Fe Springs makes sense for both the city’s commercial buildings and its limited stock of mid-century residential homes. For warehouses and manufacturing facilities, standing-seam metal over a new underlayment system gives you a roof that reflects heat, resists the UV beating this inland climate dishes out, and handles the Santa Ana wind loads that lift aging membrane seams. For the 1950s and 1960s ranch homes near Heritage Park and along Telegraph Road, a metal roof over the original decking eliminates the shingle-replacement cycle entirely. Residential metal roof installation in Santa Fe Springs typically runs $12 – $18 per square foot installed, depending on panel profile and whether the old roofing needs full tear-off. Commercial standing-seam runs $10 – $16 per square foot. We work with GAF, Atlas, and Boral metal panels and include a written guarantee on every job.
Standing-Seam for Flat and Low-Slope Decks
Southeast LA County’s industrial corridors see wind gusts during Santa Ana events that can tear loose aging membrane seams and compromised flashings. Standing-seam metal, properly installed with raised ribs and mechanical seaming, holds up to that wind better than any membrane system. We install metal over new insulation and underlayment on low-slope warehouse decks, and we detail every penetration the same way we would on a membrane roof: curb flashing, pipe boots, and termination bars done right the first time. The result is a roof that doesn’t need re-coating every five years.
Residential Metal Roofs for Older Ranch Homes
Some Santa Fe Springs homeowners want to get off the shingle-replacement treadmill entirely. A standing-seam or corrugated metal roof over a 1960s ranch home does that. The catch is that those old homes often have decking that’s cracked, undersized, or rotted from decades of heat and the occasional leak. We inspect the deck before we quote. If it needs sistering or replacement, that’s written into the price upfront, not discovered mid-job and added later. The finished roof reflects heat better than asphalt, keeps the attic cooler in the 100°F summer stretch, and typically buys 40 or more years of service life.
Trusted Brands We Service in Santa Fe Springs
We install and repair roofs using manufacturer-recognized shingle and metal brands including GAF, Atlas, and Boral. For Santa Fe Springs commercial work, those brands matter less than the membrane systems we install: TPO, EPDM, and modified bitumen from major manufacturers, all installed to spec so the warranty holds. We stock common flashing materials, sealants, and fasteners for quick turnarounds on Santa Fe Springs warehouse repairs, so we’re not waiting on a supplier run when your roof is leaking. If a specific brand’s warranty matters to you, tell us when you call. We’ll match the system to the building, not the other way around.
Common Roofing Company Problems We See in Santa Fe Springs Homes
Santa Fe Springs throws a specific set of problems at roofs. Here’s what we deal with most often:
- Failed penetration flashing on warehouse decks. The dense fields of HVAC curbs, exhaust stacks, and conduit runs on Santa Fe Springs commercial roofs are the city’s number-one leak source. Poorly flashed equipment curbs let water in slowly over years, rotting the blocking underneath before anyone notices the leak inside.
- UV-baked flat membranes that fail early. Inland heat regularly over 100°F accelerates thermal cycling on TPO and EPDM roofs. Seams lift, membrane gets brittle, and the roof that should have lasted 20 years starts leaking at 12 or 15.
- Santa Ana wind damage on aging perimeters. Fall and winter Santa Ana events gust through the industrial corridors hard enough to lift compromised perimeter flashing and tear open weak membrane seams. Once the edge goes, the whole roof starts working against you.
- Undersized or rotted decking on older homes. On the 1950s and 1960s ranch homes here, the original decking is often cracked or dry-rotted. A shingle replacement over bad decking is a wasted roof, so we inspect and address it before the first shingle goes down. Every one of these fixes gets a written price before we start.
Pricing for Roofing Company in Santa Fe Springs, CA
You should know what things cost before you call. Commercial membrane replacement in Santa Fe Springs runs $6 – $9 per square foot for a full tear-off and new TPO or EPDM. Targeted leak repair around a roof penetration runs $450 – $1,200 per curb or stack. Residential metal roof installation runs $12 – $18 per square foot installed. Residential roof replacement with architectural shingles runs $4.50 – $7 per square foot depending on tear-off and decking condition. The biggest variable in Santa Fe Springs is what we find under the old roof: cracked decking, failed drip edge, or code-upgrade requirements triggered by a permit. We write allowances into the contract for exactly those discoveries, and we never proceed on a change without your written approval. Call (743) 200-8347 for a free written estimate. We’ll show you the line items before you commit to anything.
We Also Serve Cities Near Santa Fe Springs
If you’re in Santa Fe Springs, you know the city’s industrial corridors don’t stop at the border. We run the same crews to Norwalk, Downey, Pico Rivera, and Bell Gardens. Same written pricing, same badge-at-the-door standard, same 365-day guarantee. Your building type doesn’t change our process.
Serving Santa Fe Springs, CA - Our Local Coverage Area
We’re based in the Santa Fe Springs 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 Roofing Company in Santa Fe Springs
Because Santa Fe Springs’ older homes and commercial buildings hide problems under the surface that no honest roofer can see until the old roof comes off. On a mid-century ranch near Heritage Park, our crew tore off original 1950s shingles and found cracked, undersized 1×6 decking that had to be re-nailed and sistered before we could lay new underlayment. The remodel permit had pulled the walls open, which exposed outdated knob-and-tube-era wiring and a failed drip edge. We priced those upgrades in writing, decking per square, a new drip edge, ice and water shield at the valleys, and got approval before we touched a shingle. The final invoice matched the contract. That’s how we handle every surprise: we write an allowance for the known unknowns, we inspect what we can before quoting, and anything unexpected gets a written price and your signature first. Call (743) 200-8347 for a quote that accounts for Santa Fe Springs reality.
Yes. Flat and low-slope commercial roofing is the majority of our Santa Fe Springs work. We install and repair TPO, EPDM, and modified bitumen membrane systems over aging built-up roofing from the 1970s through the 1990s. We do full tear-offs, recover systems, penetration flashing, and perimeter repairs. Our crews specialize in the commercial details: equipment curbs, exhaust stacks, conduit runs, and the flashing that keeps water out of them. Call (743) 200-8347 and we’ll send someone who knows warehouse roofs, not just houses.
Failed flashing around rooftop HVAC curbs and exhaust stacks. Santa Fe Springs warehouse decks carry dense fields of equipment penetrations, and every one is a potential water entry point. When the flashing or sealant around a curb fails, water gets in slowly and rots the wood blocking underneath before anyone sees a leak inside. It’s the number-one issue we fix on commercial buildings here, and it’s the first thing we inspect on any flat-roof leak call. A targeted flashing repair typically runs $450 – $1,200 per penetration. Call us for a free inspection quote.
Summer temperatures regularly exceed 100°F in Santa Fe Springs, which bakes flat membrane roofs and accelerates UV degradation and thermal cycling far faster than coastal cities experience. Then fall and winter Santa Ana wind events gust through the industrial corridors, lifting aging membrane seams and compromised perimeter flashings. The combination shortens roof life and creates sudden failure points. We install and repair with those conditions in mind, using heat-tolerant membranes, reinforced perimeter details, and penetration flashing built to hold. Call (743) 200-8347 for an assessment of how your specific roof is holding up.
Yes. We install standing-seam and corrugated metal on both residential ranch homes and commercial flat or low-slope decks. For Santa Fe Springs warehouses, metal over new underlayment resists the heat and Santa Ana wind loads better than membrane. For the 1950s and 1960s homes near Heritage Park and along Telegraph Road, a metal roof ends the shingle-replacement cycle and reflects heat in the summer. Residential metal installation runs $12 – $18 per square foot; commercial standing-seam runs $10 – $16 per square foot. Call (743) 200-8347 and we’ll write you an exact price.
Get Your Free Santa Fe Springs Roofing Estimate
If you’re watching a water stain spread across a warehouse ceiling, or you’re ready to replace the original shingles on a 1960s ranch home, call Mercer Roofing at (743) 200-8347. You’ll talk to a live person, not a voicemail. We’ll schedule a time that works for you, send the technician’s name and photo before they arrive, and hand you a written price before any work starts. That’s the Threshold Standard, and it applies to every job in Santa Fe Springs. Grant Whitlock and the Mercer Roofing team are ready when you are.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Santa Fe Springs and surrounding communities since 2000.






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