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 Replacement Across Valley Glen
Roof replacement in Valley Glen typically runs $12,500 to $28,000 for a standard single-story ranch home, with architectural shingles landing between $15,000 and $22,000. We replace roofs across every Valley Glen neighborhood, from the 1950s tracts south of Burbank Boulevard to the newer infill homes near Valley College. Our crews know this city’s housing stock well because we work on it every week. If you’ve been staring at curled shingles or water stains on your ceiling, call us at (866) 974-2271 for a free roof assessment and written estimate.
Why Koreatown Roofing Is Valley Glen’s Preferred Roof Replacement Company
We’re roofing specialists, not generalists. Every job we take in Valley Glen is a roofing job. That focus means we spend our days thinking about decking, flashing, underlayment, and ventilation, not juggling kitchen remodels and bathroom tile. Valley Glen homeowners call us because we can explain the difference between a GAF Timberline and a CertainTeed Landmark without sliding into sales jargon. We walk the roof with you, show you what we’re seeing, and give you a line-item quote that makes sense. Our reputation in Valley Glen is built one re-roof at a time, and we intend to keep it that way.
Manny Cordero runs our team, and he’s the person you’ll talk to when you call. Not a call center. Not a rotating cast of project managers. When a Roof Replacement team arrives at a Valley Glen home, they answer to the same person who quoted the job. That kind of accountability is rare in roofing, and it’s the reason homeowners from Coldwater Canyon to the 170 corridor keep our number handy.
Styles & brands we work with






Asphalt Shingle Roof Replacement in Valley Glen
Asphalt Shingle Roof Replacement in Valley Glen is the most common roof job we do, and it’s what most of the postwar ranch homes here were built to carry. The process is straightforward: we tear off the existing layers, inspect the decking for rot or sag, replace any damaged sections, install new underlayment and flashing, and lay the shingles according to manufacturer specifications. A typical Valley Glen ranch with a 1,400 to 1,800 square foot footprint usually costs between $14,000 and $22,000 for architectural shingles, and between $11,000 and $16,000 for a basic three-tab product.
The Valley Glen housing stock makes asphalt shingles the default choice for good reason. These are mostly single-story homes with simple roof lines, which means shingle installation is fast and straightforward. We work with GAF, CertainTeed, and Owens Corning, among other manufacturers, so you can pick the shingle weight, color, and warranty level that matches your budget and your home’s style. Your roof, your material choice.
Architectural Shingle Options
Architectural shingles are what most Valley Glen homeowners choose when they replace a roof. They’re thicker than three-tab, they hold up better to the San Fernando Valley’s UV exposure, and they give the roof a dimensional look that suits ranch and minimal-traditional homes. Expect to pay $15,000 to $25,000 for architectural shingles on a typical Valley Glen home, depending on the brand and warranty tier.
Roof Decking and Underlayment
The shingles are only as good as what’s under them. On older Valley Glen homes, we often find decking that’s never been replaced and has softened under decades of trapped moisture. We include a decking inspection with every tear-off, and we quote any replacement boards up front so there are no surprises mid-job.
New Roof Installation in Valley Glen
New Roof Installation in Valley Glen is a different animal from a re-roof, and it’s what you’ll need if you’re building an addition, converting a garage, or adding a new structure on a lot that’s been cleared. Most new construction in Valley Glen these days comes in the form of infill homes and accessory dwelling units, and we install roofs on those projects from the sheathing up. A new roof on a Valley Glen ADU or small addition typically runs $8,000 to $15,000, while a full new construction home roof can range from $18,000 to $35,000 depending on the footprint.
What makes a new roof different is that we’re working with bare decking and new framing, which means we can get the ventilation right from the start. In Valley Glen’s climate, that matters. Proper ridge and eave ventilation keeps attic temperatures down during summer, which extends the life of the shingles and keeps your cooling bills lower.
Working With Builders and Architects
If you’re working with a general contractor on a Valley Glen addition or new build, we coordinate directly with them on the roof scope. We’re a roofing-only company, so we’re comfortable taking the roof portion of a plan set and handling it from permit to final inspection. No subcontracted crews. No finger-pointing.
ADU and Detached Structure Roofs
Valley Glen has seen a wave of ADU construction in recent years, and many of those projects need a roof that matches the main house. We install shingles, flat roofing, and combinations of both on detached structures, and we’ll match the main home’s material and color so the whole property looks cohesive.
Trusted Brands We Service in Valley Glen
We’re not tied to a single manufacturer, which means the shingle we recommend for your Valley Glen roof is the one that fits your home and budget, not the one we’re obligated to push. We install GAF, CertainTeed, Owens Corning, and Atlas products regularly, and we stock common color lines and accessories locally so Valley Glen customers aren’t waiting on freight. If you want a specific shingle color or warranty tier, we’ll order it. If you want something more budget-friendly, we’ll tell you honestly what the trade-offs are. That’s the benefit of working with a roofing company that carries seven manufacturer lines instead of one.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Valley Glen Homes
- Hidden rot under tree canopy: The mature valley oaks and eucalyptus trees that give Valley Glen its character drop leaves and seed pods that pile up in roof valleys. Moisture gets trapped under that debris, and we find rot in the decking even when the shingles look fine from the ground.
- Early failure on builder-grade shingles: The newer infill homes in Valley Glen often went up with entry-level architectural shingles. UV degradation and thermal cycling cause the starter strip and ridge vent to fail early, especially when attic ventilation is weak.
- Santa Ana wind damage: When the winds come through the San Fernando Valley, any shingle that’s lifted or dried out gets peeled back. We see this most often on older roofs where the adhesive strip has lost its grip over years of summer heat.
- Second-layer problems: Some Valley Glen ranch homes had a second layer of shingles added over the original wood shake roof. That’s a code violation when it comes time to replace, and it always means a full tear-off and usually decking repairs.
Pricing for Roof Replacement in Valley Glen, CA
A full tear-off and replacement on a typical Valley Glen ranch home runs from $14,000 to $22,000 for architectural shingles. If your home needs decking replacement, expect to add $2,000 to $5,000 depending on how many sheets are rotted. Flat roof sections over patios or additions run $1,800 to $4,500 on their own. Three-tab shingles come in lower, usually $11,000 to $16,000, but they carry shorter warranties and don’t hold up as well to Valley Glen’s summer sun. Every quote is free, written, and broken down line by line so you can see exactly what you’re paying for. Call (866) 974-2271 to schedule yours.
We Also Serve Cities Near Valley Glen
Our crews cover Valley Glen and the surrounding San Fernando Valley communities, including Van Nuys, Sherman Oaks, Encino, and North Hills. If you’re in one of those areas and need a Roof Replacement in Valley Glen or nearby, give us a call and we’ll get you on the schedule. We’re a local company serving local neighborhoods, and we treat every roof like it’s on our own block.
Serving Valley Glen, CA — Our Local Coverage Area
We’re based in the Valley Glen 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 Valley Glen
Your builder’s warranty typically covers structural defects, not the shingle material itself, so replacing the roof usually won’t void the structural coverage, and in many cases the shingle manufacturer’s own warranty will transfer or renew with the new installation. The key is to use a licensed contractor who follows manufacturer installation specs and pulls Valley Glen permits. Manny Cordero can walk through your specific warranty documents on the phone and explain exactly what’s at risk and what isn’t. Call (866) 974-2271 and have your paperwork ready.
The biggest upgrade for a newer Valley Glen home is ventilation. Builder-grade ridge vents are often undersized, and adding proper intake at the eaves will do more for shingle life than a heavier shingle. If your home still has builder-grade three-tab shingles, upgrading to architectural shingles is worth it when the time comes. Flashings around chimneys and plumbing stacks are usually fine as-is unless you see staining. We’ll tell you what’s genuinely worth spending on and what’s not.
The standard items Valley Glen HOAs enforce are shingle color, shingle profile, and material type, plus whether the ridge vent or cap matches the existing look. Most require approval before we start, with the application including the manufacturer name, color name, and sometimes a sample swatch. We handle HOA submittals as part of the job for Valley Glen clients, and we know what the common architectural boards are looking for. Call (866) 974-2271 if you’ve got a letter from your HOA and want us to review it.
Those trees are the biggest reason we find hidden decking rot on Valley Glen roofs that look fine from the street. When we replace a roof under heavy tree canopy, we pay extra attention to valley flashing, decking seams, and gutter aprons. We also recommend a maintenance schedule that includes clearing roof valleys twice a year, especially after the spring seed-pod drop. If you’re planning a replacement, we can assess the tree situation and make sure the new roof’s drainage design accounts for the debris load.
Start by stripping out the marketing language and looking at four things, the underlayment brand, the shingle brand and model, the flashing replacement scope, and whether decking replacement is included or priced per sheet. A bid that’s $4,000 lower often skips ice and water shield or reuses old flashing. We give every Valley Glen customer a written line-item estimate that names every material and labor component. Bring a competitor’s bid to Manny Cordero and he’ll go through it with you line by line. That call is free, and it’s the fastest way to understand what you’re actually buying.
Written by Manny Cordero, Owner at Koreatown Roofing, serving Valley Glen and the surrounding San Fernando Valley.