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 Los Angeles
Roof replacement in Los Angeles usually runs between $9,800 and $22,000 for a typical single-family home, and on flat-deck bungalows and stucco boxes the job is less about tearing off shingles and more about waterproofing a low-slope deck the sun has been baking for decades. We know those roofs because we’ve opened up hundreds of them across Koreatown, Echo Park, Silver Lake, and the 90036 through 90039 corridors. If you’ve got water where it shouldn’t be, or you’re just tired of patching a flat roof that keeps failing, call (877) 755-4274 and we’ll start with a real inspection, not a sales pitch.
Why Weathervane Roof Repair Is Los Angeles’s Preferred Roof Replacement Company
Most roofing companies in Los Angeles sell shingles. We sell a diagnosis first. That’s the whole reason our service lineup starts with Roof Replacement only after inspection and repair have been ruled out. Homeowners in Los Angeles tell us the same thing over and over: they’ve had three contractors look at the same leak and gotten three different answers. Our answer starts with a moisture scan of the entire deck, because on a flat roof, the stain on your hallway ceiling is rarely where the water is getting in.
Gil Tanner built Weathervane around a repair-first philosophy. If a $600 seam repair at the parapet buys you five more years, we’ll tell you that. If the decking underneath is gone and the roof needs to come off, we’ll show you photos and a written line-item scope before we touch anything. That’s the honesty Los Angeles homeowners expect, and it’s why our customers in Silver Lake and South LA keep our number when they buy their next property.
We cover the 90036, 90037, 90038, and 90039 ZIP codes regularly, and our crews know the difference between a 1930s Spanish Colonial in the mid-city flats and a 1960s stucco box apartment behind a parapet on the eastern edge of the city. That local knowledge changes how we bid, what we look for, and what we recommend.
Styles & brands we work with
New Roof Installation in Los Angeles
New Roof Installation in Los Angeles typically starts around $11,000 for a small flat-deck single-story home and runs to $24,000 or more for a larger two-story with steep sections, ridge work, and full decking replacement. The job here usually means tearing off one or more layers of old rolled roofing or torch-down, replacing damaged wood decking, installing a new underlayment and membrane, and finishing parapet walls with new flashing and a UV-rated cap sheet. Because Los Angeles gets roughly 300 days of sun a year and almost no freeze-thaw cycles, the materials that make sense here are not the same ones a roofer in Minneapolis would reach for.
Flat-Deck Membrane Systems
On near-flat roofs behind parapet walls, we install torch-down modified bitumen or TPO single-ply systems selected for UV resistance and how well they handle thermal cycling. The sun opens seams over time; a reflective or white membrane slows that process and keeps the home cooler during Santa Ana heat.
Decking and Dry-Rot Repair
Before any new membrane goes down, we inspect the wood decking below. On older Los Angeles homes, it’s common to find dry-rot at the parapet or around old vents. We write a deck-repair allowance into the contract so you see the number before we open anything up.
Reroofing in Los Angeles
Reroofing in Los Angeles means removing the existing failed membrane or shingles and replacing everything down to the deck in one pass, which on most local homes runs between $9,500 and $19,000 depending on roof size, deck condition, and whether we’re keeping the existing parapet flashing or replacing it outright. Homeowners in the 90001-90010 corridor often find themselves reroofing a flat-deck bungalow that’s had two or three patch jobs over the last decade. The problem with patch jobs is they treat the symptom, not the membrane, and on a low-slope deck, water travels laterally until it finds a seam or a low spot.
The Full Tear-Off Process
We strip the old layers down to the sheathing, check for soft spots and failed underlayment, then replace what’s bad before laying the new system. This is where most cheap bids go wrong: they skip the decking inspection, cover over the rot, and hand you a roof that ponds after the first real rain.
When Patching Isn’t Enough
If the cap sheet at the parapet is brittle, cracked, or pulling away, a patch is wasted money. Santa Ana winds lift the perimeter first, and once the edge is compromised, water gets under the membrane and travels. At that point, reroofing is the honest call, and we’ll show you why with photos before we ask you to sign anything.
Trusted Brands We Service in Los Angeles
We install and repair systems from seven major manufacturers, so our recommendation is driven by what your Los Angeles roof actually faces, not by a vendor contract. For steep-slope work, we regularly install CertainTeed and Owens Corning architectural shingles; for low-slope and flat decks, we work with IKO and Atlas modified bitumen and TPO systems. Since we stock common flashings, edge details, and cap sheet materials locally, we can often start a Los Angeles reroof within a week of the signed estimate, and we don’t keep you waiting on a supply order from out of state.
Common Roof Replacement Problems We See in Los Angeles Homes
- Water traveling from the parapet to the interior stain. On flat-deck bungalows, a leak at the parapet wall can show up as a ceiling stain ten or more feet away in a hallway. Chasing the stain without scanning the deck means replacing the wrong section and watching the leak return.
- Dried-out, brittle cap sheet at the parapet. UV breaks down the top layer first, and the perimeter is where wind uplift hits hardest. The cap sheet can look fine from the ground while it’s already pulling away at the seams.
- Hidden decking rot under an old membrane. On 1920s-40s homes with original 1×6 skip sheathing, decades of small leaks soften the wood from underneath. Nail pops, ponding, and a membrane that feels spongy underfoot are the telltales we look for during inspection.
- Ponding on low-slope sections behind parapets. Los Angeles flat roofs aren’t truly flat, but if the slope isn’t maintained or the deck has sagged, water sits and accelerates membrane failure. A proper reroof corrects drainage, and that’s part of the job, not an add-on.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Replacement in Los Angeles, CA
A full flat-deck replacement on a 1,200-square-foot Los Angeles bungalow generally runs $9,800 to $14,500. Add steep-slope architectural shingles, new decking, or a larger footprint and you’re looking at $16,000 to $24,000. The big variables here are deck condition, parapet height and condition, and whether you choose torch-down modified bitumen or a TPO membrane. We give written line-item estimates, and the deck-repair allowance is priced before we open anything so you aren’t surprised mid-job. Call (877) 755-4274 to schedule a free inspection and get numbers specific to your roof.
We Also Serve Cities Near Los Angeles
Weathervane Roof Repair runs crews into Koreatown, Echo Park, Silver Lake, and Hollywood every week, so if you’re searching for Roof Replacement in Los Angeles, you’ll get the same inspection-first process whether your home is a 1920s bungalow on a flat street or a hillside house with a view. Same crews, same pricing, same honest assessment.
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.
FAQs About Roof Replacement in Los Angeles
On a flat or low-slope roof, water runs under the membrane along the deck and exits wherever the first seam or penetration lets it through, which is often the parapet wall or a vent pipe ten or more feet from where the stain appears. That’s why we always start a Los Angeles roof replacement with a full-deck moisture scan, not a patch at the visible stain. Call (877) 755-4274 and we’ll find the actual seam, then price the fix from there.
Yes. Los Angeles requires a reroofing permit for most full replacements, and if the building is multi-family or has more than two units, the city will want to verify the new roof system meets current Title 24 cool-roof requirements for reflective surfacing. We pull the permit, handle the inspection, and document the deck repairs in writing so the inspector can see exactly what was replaced and why.
Torch-down modified bitumen is a multi-layer asphalt-based membrane that’s been used on LA flat roofs for 30+ years; it’s durable, repairable, and handles parapet detailing well, but it’s dark and absorbs heat unless topped with a reflective coating. TPO is a white single-ply membrane that reflects UV and can reduce cooling load, but it costs more up front and requires clean, well-prepped decking. For most South LA bungalows, we recommend a UV-rated torch-down cap sheet unless the owner wants the energy benefits of TPO.
We inspect every square foot after tear-off, mark the bad sections with chalk, and replace only what’s rotted or delaminated using CDX plywood or matching skip sheathing where the house calls for it. The replacement footage is covered by the written deck-repair allowance in your contract, and we photograph everything before closing up so you know exactly what you paid for. That’s the way Gil Tanner insists every Weathervane job be documented.
No. Architectural shingles are rated for slopes of 2:12 or steeper, and most Los Angeles roofs behind parapets are below that threshold, which means shingles will trap water and fail early. Those roofs need a membrane system like modified bitumen or TPO. We only recommend shingles where the slope actually supports them, and we’ll tell you which your house needs during the inspection.
Written by Gil Tanner, Owner at Weathervane Roof Repair, serving Los Angeles since our founding. We work on roofs in Koreatown, Echo Park, Silver Lake, Hollywood, and the surrounding neighborhoods every week, and we treat every roof like it’s the one we have to stand behind.
Get Your Free Los Angeles Roof Replacement Estimate
If you’re in Los Angeles and you’re tired of patching a flat roof that keeps leaking, call us. We’ll schedule a full inspection, run a moisture scan on the deck, and give you a written estimate with real numbers and a deck-repair allowance before anything gets torn off. Reach Weathervane Roof Repair at (877) 755-4274 and you’ll get the straight answer about what your roof needs, and what it doesn’t.