Metal roofing
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Pasadena
Roof replacement in Pasadena runs roughly $9,800 to $24,000 for a typical single-family home, with acreage properties and detached structures often landing higher because of permitting, hauling distance, and decking prep. Most Pasadena replacements take three to seven working days once materials are staged and the underlayment goes down. We serve every corner of the city, from the Craftsman streets of Bungalow Heaven to the county-lined acreage off North Allen Avenue and the open lots east toward Hastings Ranch. If you’re weighing a tear-off versus an overlay or wondering what your oak canopy is doing to your shingles, call us at (866) 974-2271 and we’ll walk the roof with you before you commit to anything.
Key Takeaways:
- A full tear-off and replacement on a Pasadena bungalow or ranch typically costs between $9,800 and $24,000 depending on decking, pitch, and material class.
- Reroofing on unincorporated acreage adds county permitting, hauling logistics, and sometimes septic or well setback work that city-lot jobs never face.
- We work with GAF, Atlas, and Tamko among seven manufacturers, so your shingle choice follows your roof and your budget, not our stockroom.
- Koreatown Roofing does one trade: roofing. Inspection, repair, replacement. Nothing else pulling our focus.
Why Koreatown Roofing Is Pasadena’s Preferred Roof Replacement Company
Pasadena is a city of old rooflines. Low-pitch Craftsman gables, Spanish Colonial clay tile, bungalows with original skip sheathing, and a canopy of deodars and coast live oaks that never stops dropping. That combination rewards a roofing company that reads a roof the way a mechanic reads an engine, and it punishes generalists who show up once and subcontract the hard parts. We’re roofing specialists, not generalists. Every job we take in Pasadena is a roof job, from the first ladder climb to the final inspection.
Manny Cordero leads our Pasadena work personally. He’s the one who checks the valleys on a Bungalow Heaven tear-off before we quote, and the one who walks a half-acre lot off North Allen to see whether the county setback rules will push shingle delivery back a week. That kind of accountability is why so much of our Pasadena work comes from neighbors telling neighbors. When a crew’s reputation lives on the street where it works, the standard changes. We’re fine with that.
Response to Pasadena is measured in days for estimates, and our replacement schedule is set at quote time, not shuffled after you sign. No rotating crews, no call-center dispatch. When you call (866) 974-2271, you’re talking to people who know what an old skip-sheath deck looks like and why a straight tile-to-tile swap on a Spanish Colonial needs a matched profile, not a generic substitute.
Styles & brands we work with






Reroofing in Pasadena
Reroofing in Pasadena means a full tear-off of the existing roof and a new system built up from the decking. That’s the only honest way to handle most early-1900s Craftsman bungalows and 1920s Spanish Colonials in this city, where original roofs are often a century old and the underlayment has turned to dust. A Pasadena homeowner typically needs reroofing when granule loss shows in the gutters, when flashing has cracked around a chimney or dormer, when leaks appear at the valleys after winter rain, or when a second layer of shingles has already been laid over the original and the decking underneath is failing. On acreage lots, we see the same but often with more water damage at the fascia line, because drainage wasn’t graded properly decades ago. Reroofing in Pasadena typically runs $11,000 to $24,000 depending on decking replacement, pitch, and the shingle line you choose.
What Gets Torn Off
The old shingles, the felt or synthetic underlayment, the drip edge, and often the first rows of decking at the eaves and valleys. On Pasadena’s older homes, that usually means the original skip sheathing, which sits with gaps between boards. Building code now requires a solid nail surface, so most Pasadena reroofs include re-decking over skip sheath or replacing rotted sections entirely.
What Goes Back On
New decking where required, a water-and-ice shield in the valleys and at the eaves, high-grade synthetic underlayment across the field, new drip edge at every eave and rake, and then the shingles. For Pasadena’s many low-pitch bungalow roofs, we also check the pitch itself before we recommend a shingle line. A 2:12 pitch doesn’t perform like a 6:12 pitch, and we’d rather tell you that before we order materials than after the first winter.
Flat Roof Replacement in Pasadena
Flat roof replacement in Pasadena is common on mid-century ranch homes, detached ADUs, garage roofs, and the long, low outbuildings that sit on acreage properties around the city’s edges. These roofs fail differently than shingle roofs. Water ponds. Seams crack under sun and Santa Ana heat. Debris from the tree canopy plugs drains and scuppers, and then a winter rain finds every weak point at once. A flat roof replacement in Pasadena generally runs $8,500 to $18,000 for a standard residential surface, and more when the decking under a ponded area has rotted or the slope was never built correctly in the first place.
Ponding and Drainage
A flat roof only works if water leaves it. On Pasadena acreage, where outbuildings were often framed by hand and never engineered for slope, we routinely find ponded sections that have been soaking into the decking for years. We address that in the rebuild by adding tapered insulation or cricket framing, not by layering another coat over a failing deck.
ADUs, Shops, and Garages
Detached structures are their own job. A shop roof off a long driveway needs different access planning, different material staging, and often a separate permit path if the property sits on a county island. We quote the main house and the outbuilding as one project but scope them separately, so you know exactly what each roof costs and what the access adds.
Trusted Brands We Service in Pasadena
You should never have to buy a shingle because it’s what one contractor happens to stock. That’s why we carry relationships with seven manufacturers and let the Pasadena job tell us what to recommend. On a steep Craftsman roof in Bungalow Heaven, a dimensional shingle from GAF or Atlas gives you the shadow-line depth that suits the house. On a mid-century flat roof or a low pitch where architectural shingles aren’t right, we’ll talk materials that actually perform. Tamko’s Heritage line is a solid Pasadena fit for homeowners who want architectural depth without the premium of designer lines. We also service CertainTeed, Owens Corning, IKO, and Boral. For Pasadena clients, that means material selection follows your roof’s geometry, your tree exposure, and your budget. Not our warehouse. Your roof, your material choice.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Pasadena Homes
- Oak and deodar debris in valleys and gutters. The canopy over old Pasadena neighborhoods is beautiful and relentless. Needles and leaves pack into valleys, hold moisture against shingles and flashing, and abrade the granule surface, and a new roof that doesn’t address limb clearance and gutter detailing will start failing the first fall.
- Original skip sheathing under old roofs. The 1910s and 1920s framing in Pasadena often has spaced boards, not solid decking. Modern shingles need a solid nail surface, so a straight tear-off without re-decking leaves you with a roof that won’t meet code and won’t hold fasteners properly.
- Santa Ana wind damage on old asphalt. Dry winds each fall test every edge and ridge. On older roofs, those winds lift weakened shingles and break the seal strips. On an acreage lot with full wind exposure, we see more edge and rake damage than on sheltered streets.
- Open-lot drainage pushing water against fascia. Flat or poorly graded land sends runoff back toward the house. Over time, that wicks under the drip edge and rots decking at the eave line. A replacement that skips the drainage conversation just rebuilds on a foundation of water.
Pricing for Roof Replacement in Pasadena, CA
For a Pasadena bungalow or ranch, plan on $9,800 to $18,000 for a full tear-off and architectural shingle replacement on a straightforward roof. For larger homes, steeper pitches, Spanish Colonial tile match-ups, or heavy re-decking, expect $14,000 to $24,000. Flat roofs and detached structures generally fall from $8,500 to $18,000. On acreage lots, add for long hauls, hand-carrying materials down unpaved drives, county permitting time, and drainage work at the fascia line. The biggest cost movers are decking condition, roof slope, material grade, and access. We don’t quote a Pasadena roof without standing on it first. Call (866) 974-2271 and we’ll schedule a free estimate with a written, line-item scope. No change orders because the plan was thin from the start.
We Also Serve Cities Near Pasadena
We regularly run crews from Pasadena into the surrounding communities: South Pasadena’s vintage craftsman stock, San Marino’s estate rooflines, Altadena’s foothill acreage, and East Pasadena’s mid-century ranches. If you’re just outside the city and wondering whether the same Roof Replacement team covers your street, call us. We’ll tell you straight.
Serving Pasadena, CA — Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena
It depends on your exact parcel, because many acreage properties in and around Pasadena sit on unincorporated county islands or county-lined edges, where roof permits, well and septic setbacks, and inspection scheduling run through Los Angeles County rather than the city’s own building desk. We confirm the jurisdiction from your assessor’s parcel number before we quote, because the permit path changes the timeline before a single square of shingle is ordered. Call (866) 974-2271 and we’ll verify your parcel’s jurisdiction as part of the free estimate.
We plan access before we commit to a date. On acreage lots with narrow unpaved drives, we stage a dumpster at the road or at the widest turning point, hand-carry shingle bundles and decking in staged lifts to avoid cracking the driveway or rutting soft ground, and coordinate material deliveries with the forecast so bundles don’t sit in a low spot and collect moisture. Access adds cost in a way a city-lot job never sees, but we scope it in the quote so the number you sign is the number we build to. For a specific number, call (866) 974-2271.
A detached ADU or shop is its own roof system and often its own permit. We scope it separately: own ladder access, own material counts, own decking evaluation, and a separate tear-off order so we don’t leave a building exposed while the main house is mid-job. On Pasadena acreage, detached structures are also more likely to have hand-framed roofs with odd slopes and roof drains that were never installed to handle the canopy load they get. Call (866) 974-2271 and we’ll quote the main house and the outbuilding as one project with separate line items.
Open lots with improper grading send winter rain back against the fascia and drip edge, wicking underlayment and rotting decking that a simple tear-off never addressed. When we see that during the estimate, the quote includes re-grading the soil line or adding drainage so the new roof’s edge isn’t sitting in water from day one. That’s a material part of the number we give you, not a surprise we add after the tear-off starts. For a written scope with drainage included, call (866) 974-2271.
Debris itself won’t void a shingle manufacturer’s warranty, but the failure it causes may not be covered if it’s considered neglect. Overhanging deodar and oak limbs abrade new shingles and pack valleys with needles, so a Pasadena replacement that doesn’t include limb clearance and gutter or valley detailing fails early. We don’t install a roof under a heavy canopy without recommending limb work and gutter protection. It’s part of how we quote a Pasadena job. Call (866) 974-2271 and we’ll walk the canopy with you.
Written by Manny Cordero, Owner at Koreatown Roofing, serving Pasadena and surrounding communities.