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 South Gate
Roof replacement in South Gate, CA typically runs $8,500 to $16,000 for a standard tear-off and re-roof on the small-lot bungalows that dominate this city, with flat or low-slope jobs landing on the higher end because of the membrane work involved. We know these roofs because we’ve opened enough of them up onto Tweedy Boulevard, Firestone Boulevard, and the residential streets around South Gate Park to tell you exactly what’s under the surface before we start. If you’re in the 90280 and your roof is patched, re-coated, or showing water stains after the first real rain, call (855) 382-3237 for a straight answer about whether it’s time to replace it.
Why Spartan Roof Repair Is South Gate’s Preferred Roof Replacement Company
Homeowners in South Gate call us because we’re a roofing-only contractor. That’s the whole trade. We don’t send a generalist handyman to look at your roof between bathroom remodels. Every technician on our crew works roofs, whether that’s inspection, repair, or a full Roof Replacement.
The houses that define South Gate, the 1920s to 1960s stucco bungalows and post-war tract homes packed tight along the 710 corridor, have specific failure patterns. We see them every week. Low-slope roofs with rolled composition that’s been re-coated twice. Flat parapet fronts with decking rot hiding under a membrane nobody’s pulled up in 40 years. Our crews know what to expect before the tear-off starts, which means the quote we give you is built on what’s actually up there, not a guess.
Brent Calloway, who leads our team, set the standard early: diagnose the roof, show the homeowner what we found, and give a scope of work with real numbers. No stagecraft. No pressure to add a service you don’t need. South Gate residents get the same straight-line process whether they’re off Long Beach Boulevard or tucked into the neighborhoods west of Atlantic Avenue.
Styles & brands we work with






Roof Replacement Contractor in South Gate
A Roof Replacement Contractor in South Gate is someone who tears the old roof off and puts a new one on, and on the homes we see here, that almost always means more than shingles. Most South Gate houses have a mix: pitched gable over the living space, flat or shallow-slope section over the addition, and a stucco parapet wall across the front. A proper replacement addresses all of it at once, because patching one section while the membrane next to it fails just means you pay twice.
In South Gate, a full roof replacement on a typical 900 to 1,200 square foot bungalow runs $9,000 to $14,000. When the roof has multiple low-slope sections or the decking is shot from years of trapped moisture, expect that number to climb toward $16,000 or higher once we show you the photos.
Start With the Decking, Not the Shingles
We won’t lay new roofing over soft decking. South Gate’s re-layered flat roofs trap moisture, and by the time a tear-off starts, the plywood underneath is often spongy or delaminated. We’ll strip it to the rafters, replace what’s unsound, and then build up from there. You’ll see the decking before anything goes over it.
Parapet and Flashing Work
That flat front edge on so many South Gate homes is where water works in slowly, rots the framing behind the stucco, and shows up as a ceiling stain a year later. We rebuild the parapet cap, reset flashing at every pipe and vent, and seal penetrations properly before the new membrane or tile goes down.
Asphalt Shingle Roof Replacement in South Gate
Asphalt Shingle Roof Replacement in South Gate is the most common job we do, but it’s not one-size-fits-all. The pitched sections over these older bungalows usually call for architectural shingles from Owens Corning or IKO, and a standard tear-off and replacement on a 1,200 square foot house here runs $8,500 to $12,500. That includes underlayment, new drip edge, ice and water shield at the eaves, and haul-off.
Architectural Shingle Upgrade
Most South Gate homes originally had 3-tab shingles that are now exhausted. We push architectural shingles because they carry better wind ratings, handle the long UV summers without curling as fast, and hold their color through the dry heat that bakes everything else on the roof. The cost difference is modest, usually fifteen to twenty percent over 3-tab, and the lifespan is roughly twice as long.
Roof Decking Replacement
When we tear off in South Gate, we typically find one to three sheets of damaged decking, especially at valleys and around plumbing penetrations. We write decking replacement into the quote as a line-item allowance, so you see the per-sheet cost up front. If we find more rot than expected once the old roof is off, you approve the overage in writing before we cut anything. You are never surprised by the final bill.
Trusted Brands We Service in South Gate
We install and service products from seven major manufacturers, which means we’re not locked into pushing one brand because it has the best margin. For South Gate homes, we regularly work with Owens Corning and IKO for architectural shingles, and Tamko or Atlas when a homeowner wants a specific performance tier or color match. We also carry Boral for the Spanish-style tile you see on so many front elevations here. That’s the material choice in practice: your roof, your budget, your call, with our honest read on which product fits the house.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in South Gate Homes
- Re-layered flat membranes hiding rot: South Gate’s narrow lots and closely packed flat or low-slope roofs mean our tear-off crews routinely uncover two or three re-layered membranes, rolled composition over torch-down modified bitumen, so decking rot and ponding are hidden under layers that a typical pitched-roof replacement never sees.
- UV-cracked asphalt and failed flashing: The long, dry, hot summers here crack asphalt and modified-bitumen surfaces slowly, and the first real winter storm finds every failed flashing and penetration at once. Homeowners call after that first rain, not during the heat.
- Ponding on low-slope sections: Flat roofs that aren’t draining right hold water after rain, and on South Gate’s older homes, that water sits against re-coated membranes and works through micro-cracks nobody can see from the ground.
- Rusted flashing at parapets and pipes: The stucco parapet fronts on so many local homes trap water behind the cap, and by the time a replacement starts, flashing at every penetration is often rusted through and failing.
Pricing for Roof Replacement in South Gate, CA
A full tear-off and roof replacement in South Gate runs $8,500 to $16,000 depending on roof size, pitch, and how many layers we’re pulling. A straight architectural shingle job on a 1,000 square foot bungalow sits around $9,000 to $12,000. A flat or low-slope roof with torch-down modified bitumen and new decking lands between $12,000 and $16,000. If you add Boral tile to the front elevation to match existing, that pushes the top of that range. The number moves based on what we find once the old roof is off, which is exactly why we write allowances into the quote and get written approval before any change. Call (855) 382-3237 for a free estimate. We’ll show you the numbers and the photos.
We Also Serve Cities Near South Gate
Our crews work throughout the Gateway corridor and the surrounding basin. If you’re in Lynwood, Huntington Park, Walnut Park, or Bell, we cover those roofs too, with the same focused South Gate process. The housing stock is the same, the climate is the same, and the problems don’t change at the city line.
Serving South Gate, CA — Our Local Coverage Area
We’re based in the South Gate 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 South Gate
The quote changes when the tear-off exposes decking rot, re-layered membranes, or framing damage that no one could see from the top. On the older bungalows that dominate South Gate, this happens more often than not because two or three layers of rolled roofing have been trapping moisture for years. We handle it by writing a per-sheet decking allowance into the contract and showing you photos of what we found before we touch it. You approve every dollar in writing. Call (855) 382-3237 and we’ll walk you through how the allowance works.
A square is 100 square feet of roof area, and the typical South Gate bungalow runs 9 to 14 squares depending on footprint and pitch. It matters because material and labor are priced per square, so any quote you get should state the square count flat out. We measure the roof, show you the count, and break the bid down from there. An under-counted square measurement is the oldest way to make a cheap bid look better, and we won’t do it. Call (855) 382-3237 for an accurate measurement and quote.
Yes. We can take a flat or low-slope roof that’s been re-coated with rolled composition and replace it with torch-down modified bitumen, properly adhered and sealed at every penetration, with new decking underneath if the old plywood is shot. We can also convert the pitch slightly or add tapered insulation if ponding is a problem. On South Gate homes, we typically recommend modified bitumen for the flat sections and architectural shingles or tile on the pitched sections. Call (855) 382-3237 and we’ll tell you what your roof can handle.
When you pull a roofing permit in South Gate, the inspector looks at the roof assembly, the decking condition, and whether the underlayment meets current code. If we find structural issues after tear-off, like rotted decking or framing, those have to be corrected before we re-roof. If you have an older home with outdated wiring or no proper eave vents, the code can also require bringing those up to current standard. We handle the permit, the inspection, and the corrections, and we’ll tell you before work starts what the likely triggers are on your roof. Call (855) 382-3237 to get a straight answer on your specific house.
We schedule tear-offs on South Gate’s small lots with debris staging in mind from the start. On a post-war stucco bungalow off Tweedy Boulevard near South Gate Park, our crew pulled three layers of rolled composition and torch-down modified bitumen off a flat parapet roof and found soft decking at the valleys plus rusted flashing at every penetration. We replaced the decking, laid down ice and water shield and new underlayment, and reset the drip edge along the parapet before capping it in Boral tile to match the front elevation. Debris went into trailers, not onto the neighbor’s roof. We coordinate access and timing so the job stays contained. Tell us your constraints when you call (855) 382-3237 and we’ll work around them.
Written by Brent Calloway, Owner at Spartan Roof Repair, serving South Gate and the surrounding Gateway corridor.