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 Installation Across Bell
A full roof installation on a Bell home typically runs $9,800 to $18,500 depending on square footage, decking condition, and whether we’re tearing off multiple old layers. Most Bell jobs take 3 to 7 working days once materials arrive. We start every project the same way: we walk the roof with you, we show you exactly what we’re seeing, and we put a written price in your hand before any work begins. Call (213) 521-8272 and we’ll schedule that first look.
Bell’s housing stock has a particular rhythm to it. Single-story stucco bungalows from the 1920s through the 1940s, courtyard apartments from the same era, low-pitched roofs that have seen decades of patches. Roof installation in Bell isn’t a cookie-cutter job because the homes aren’t cookie-cutter. You need a crew that knows what’s under those shingles before the first one comes off.
Why Mercer Roofing Co Los Angeles Is Bell’s Preferred Roof Installation Company
Bell homeowners call us because they want to know who’s walking up the driveway. Before any technician arrives, we send you their name and photo. At the door, they present a photo ID badge and they’re in a clean, marked uniform. That’s the Threshold Verified standard, and every Mercer Roofing location is contractually held to it. Grant Whitlock leads our team, and he’s built the company around a simple idea: certainty at every step, from first knock to final nail.
Founded in 2000, Mercer Roofing is part of the Threshold Group family of home-service companies. Every technician is background-checked and identity-verified. Every project gets a written price before work starts, never conditional, never verbal. And every installation carries our 365-Day Done Right Promise: if it’s not done right within a year, we make it right. That’s the guarantee in writing, on every job.
We work on Bell roofs every week. Our crews know the streets south of Gage Avenue, the bungalow rows near Bell High School, and the courtyard apartments clustered around the 90201 zip. Dispatch and scheduling are coordinated from the Los Angeles office, but our crews serve Bell locally and know the city’s housing stock intimately.
Styles & brands we work with






TPO Roofing Installation in Bell
TPO Roofing Installation in Bell is the right call for the city’s low-slope and flat-roof structures, which make up a significant share of Bell’s older multi-family courtyard apartments and some single-story stucco homes built flat or near-flat. TPO is a single-ply thermoplastic membrane that we heat-weld at the seams. The result is a continuous, watertight surface that reflects heat instead of absorbing it, which matters during Bell’s blazing summer months when rooftop temperatures climb past 140 degrees on August afternoons.
A TPO roof installation on a typical Bell apartment building or flat-roofed home runs $7 to $10 per square foot installed, which puts most jobs in the $12,000 to $18,500 range. The membrane itself is white, which cuts cooling costs during Bell’s hot, dry summers, and it holds up well under the UV exposure we get year-round here.
When TPO Beats Shingles
If your Bell roof has a slope below 2:12 (meaning the roof rises less than 2 inches for every 12 inches of run), shingles won’t shed water properly. Water pools, finds the seams, and works its way into the decking. TPO welds into a single sheet, so there’s no seam for water to exploit on low-slope sections.
Many Bell courtyard apartments from the 1930s and 1940s were originally built with built-up gravel roofs. When those fail, owners often patch them repeatedly with cold-applied coatings. We see those buildings all over Bell, especially in the blocks between Gage and Florence. TPO installation gives those buildings the first clean, warrantied roof they’ve had in decades.
What TPO Installation Involves
We strip the old roofing down to the deck, inspect for rot (common in Bell’s older buildings where leaks went unnoticed for years), replace any compromised decking, install insulation board, then lay and weld the TPO membrane. The finished roof is white, smooth, and sheds water cleanly. We finish with new metal edge flashing and any needed scupper or drain replacements.
Shingle Roof in Bell
Shingle Roof in Bell is what most single-story bungalow owners need, and it’s the bulk of what we install in the city. The dominant building type in Bell is the 1920-to-1950 stucco bungalow with a low-pitched roof, usually between 3:12 and 6:12 pitch. Those roofs can absolutely take shingles, especially architectural shingles from GAF or CertainTeed, which are thicker and lay flatter than old three-tab shingles.
A full shingle roof installation in Bell typically runs $9,800 to $14,500 for a standard bungalow, depending on tear-off layers, decking replacement, and the shingle brand you choose. Architectural shingles with a 30-year or lifetime material warranty run about 12 to 18 percent more than basic three-tab shingles, and in Bell’s climate the upgrade is worth it: architectural shingles resist wind uplift better during Santa Ana events and handle UV exposure without curling.
Why Decking Condition Changes the Price
Bell’s older homes rarely have pristine decking. Decades of patches, multiple shingle layers, and the weight of old wood shake underneath mean we frequently find rotted sections near the eaves and low-slope edges. When decking is compromised, we replace it, and that’s a line item on the written estimate, not a surprise. You’ll know the decking allowance before we start, and any additional findings get priced and approved in writing before we touch them.
Clay Tile Accents on Bell Homes
Bell has a surprising number of homes with original clay tile accents: a decorative tile course at the rake, tile at the entry porch, or a small tile roof section over a bay window. Matching those tiles after a full re-roof takes care. Boral and Atlas both make profiles that match the classic Spanish and mission styles common in Bell, and we work carefully to integrate new shingles with existing clay accents rather than ripping them out and losing the home’s character. The flashings at those tile-to-shingle transitions are where Bell roofs leak first, which brings us to a problem we see constantly: the spongy spot.
Trusted Brands We Service in Bell
We install and repair roofs using manufacturer-recognized shingle brands, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That list matters in Bell, because the city’s housing stock includes everything from 1920s wood-frame bungalows to mid-century stucco courtyard apartments, and each roof has different demands. We keep stock of common Bell roof parts locally for fast turnaround: standard hip and ridge caps, drip edge, underlayment rolls, and vent boots. If you call us about a specific brand, we’ll tell you honestly whether it fits your roof, your pitch, and your budget.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Bell Homes
- Spongy spots at the low-slope edges: Repeated patches over rotted decking create soft spots where water has been trapped for years. This is the single most common finding on Bell roofs, especially south of Gage Avenue, and it’s a structural issue that patch work can’t address.
- Multiple shingle layers over original wood shake: Bell homes often have three layers of roofing stacked up. The weight sags framing, traps heat, and crushes decking. A proper installation requires a full tear-off, not another layer on top.
- Mismatched clay tile patches: Original clay tile accents crack and shift after decades of Santa Ana wind gusts. When a previous roofer patched with the wrong tile, water seeps under the flashing and rots the soffit and fascia quietly, out of sight.
- Permit-triggered upgrades on older homes: Bell’s building department requires current code compliance on re-roofs, which often means adding or upgrading ventilation and underlayment. Skipping those upgrades leads to heat-trapped attics that cook new shingles from below and shorten their life.
Pricing for Roof Installation in Bell, CA
Here’s what you should expect to pay for roof installation in Bell right now. A standard shingle roof on a Bell bungalow runs $9,800 to $14,500. A TPO roof on a flat or low-slope courtyard apartment runs $12,000 to $18,500. If the job includes extensive decking replacement, add $2 to $4 per square foot of replaced decking. These are Bell market prices, not national averages: labor costs in Southeast Los Angeles County, permit fees, and the particular conditions of Bell’s older homes all shape these numbers.
What moves the price: tear-off layers (two or three layers costs more to remove and haul), decking condition, shingle brand and grade, roof pitch, access (some Bell courtyard apartments have tight clearance for dumpsters and staging), and any permit-triggered ventilation or underlayment upgrades. We give you a written price before work starts, every time. Call (213) 521-8272 to schedule a free estimate and get your exact number.
We Also Serve Cities Near Bell
In addition to our Roof Installation work across Bell, our crews regularly serve homeowners in Bell Gardens and the neighboring communities of South Gate, Los Angeles, and Lynwood. If you’re in one of those cities and need a roof that’s done once and done right, the same Threshold Verified crews and written pricing apply. Call us and we’ll schedule your estimate.
Serving Bell, CA - Our Local Coverage Area
We’re based in the Bell 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 Bell
Yes. The spongy feeling is rotted decking, not failed shingles. A patch covers the symptom, but the water damage underneath keeps spreading. In Bell’s pre-1960s bungalows, especially south of Gage Avenue, we routinely find decking rotted through at the low-slope edges because patch repairs trapped moisture instead of letting it dry. The fix is to strip the roof, cut out the rotted sections, replace the decking, and install a proper underlayment before any new shingles go down. That’s the only way the spongy spots stop coming back. Call (213) 521-8272 and we’ll show you exactly what’s happening on your roof, free.
In most cases, yes. Boral and Atlas both manufacture clay tile profiles that match the classic Spanish and mission styles used on Bell homes from the 1920s through the 1950s. We remove only the damaged tile pieces, install matching replacements, and rebuild the flashings where tile meets shingle. That transition is where Bell roofs leak most often, so we take extra care there. If your tile section is too far gone, we’ll tell you straight and show you your options before any work is priced. Call (213) 521-8272 for a free assessment.
Possibly, and you should know that before you sign anything. Bell’s current building code requires ventilation and underlayment upgrades on many re-roof projects, especially on buildings from the 1930s and 1940s that were built before modern attic ventilation standards existed. We write those upgrades into the estimate up front as line items, so they’re not surprises. When the decking comes off and we find something we didn’t see from above, we stop, show you photos, and get written approval before any additional work proceeds. You always know the number before we spend your money. Call (213) 521-8272 to get an estimate that accounts for Bell’s code requirements.
Two things: the shingle brand and the installation method. We install GAF and CertainTeed architectural shingles that are rated for 110 to 130 mph wind uplift with proper nailing patterns. At the rake edges and eaves, we install metal drip edge and follow the manufacturer’s six-nail specification for high-wind zones. Bell’s geography puts it directly in the path of Santa Ana wind corridors, so we don’t use standard four-nail patterns on exposed roof edges. The nails go in the right place, the drip edge gets fastened properly, and your roof holds. Call (213) 521-8272 and we’ll walk your roof with you and point out exactly where wind will hit hardest.
If your roof’s pitch is 2:12 or lower, shingles won’t work and TPO is the better choice. Bell’s older stucco homes sometimes have sections that are almost flat, especially over additions, porch roofs, or enclosed patios. Shingles on a 2:12 or lower slope let water pool and seep under the overlaps. TPO welds into a single continuous membrane, so there are no shingle laps for water to penetrate. For slopes above 3:12, shingles perform well and cost less up front. We’ll measure your exact pitch and tell you honestly which material fits your roof, not which one we’d rather sell. Call (213) 521-8272 for a free measurement and recommendation.
Yes, it’s a problem. Many Bell homes built between 1920 and 1950 still carry two or three layers of asphalt shingles over the original wood shake. Each layer adds weight the framing wasn’t designed to carry, and the trapped heat between layers shortens the life of every shingle above. Building code now limits most roofs to two layers total, and a proper installation on a Bell home usually means a full tear-off to the deck. We’ll show you exactly what’s under your top layer, and you’ll understand why another patch or another layer won’t solve the underlying issue. Call (213) 521-8272 to schedule your free roof assessment.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles, serving Bell and surrounding communities. Founded in 2000, part of the Threshold Group family of home-service companies.