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 Van Nuys
A full roof replacement on a Van Nuys home typically runs $14,000 to $26,000 for a standard single-story tract house, with architectural shingle tear-offs landing between $16,000 and $22,000 on most lots. That’s the honest range before we see the decking, and it’s why we quote after inspection, not before. Marquis Roof Repair has been tearing off and re-roofing Van Nuys homes for years, and we know the streets, the HOAs, and the specific ways Valley heat eats a roof long before the warranty says it should. If you’ve spotted missing shingles or a valley leak, call (866) 705-2978 and we’ll schedule a free estimate. Ron Thibodeau built this company on one principle: investigate before you recommend. That means we don’t sell a replacement when a repair would serve you better.
Why Marquis Roof Repair Is Van Nuys’s Preferred Roof Replacement Company
Van Nuys homeowners call us because we carry seven manufacturer lines, GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, which means the right material for your roof is always available, not just whichever brand happens to be in the yard that week. Most local roofers stick to one or two brands. That limits what they can honestly recommend. We’re brand-agnostic, so the recommendation comes from your roof’s pitch, your exposure, and your budget. The Marquis standard means elevated craft and jobsite conduct: tarps down, magnets run daily, drip edges set straight, every nail patterned to spec. From first inspection to final shingle, one point of contact handles the whole lifecycle. You’ll never get handed off to a second contractor.
We serve all of Van Nuys: 91401, 91405, 91406, 91411, and the surrounding pockets. The shallow-pitch postwar tract homes we see off Van Nuys Boulevard and Hazeltine Avenue need a different set of solutions than the steeper new builds near the Sepulveda Basin. Knowing the difference before we quote is what keeps you from paying for a roof system that fails early.
Styles & brands we work with
Asphalt Shingle Roof Replacement in Van Nuys
Asphalt Shingle Roof Replacement in Van Nuys is the most common job we do, and it starts with a full tear-off to the decking, then underlayment, leak barrier in the valleys and at penetrations, new flashing, and architectural shingles rated for the Valley’s UV load. In Van Nuys’s summer heat, cheap 3-tab shingles bake out, curl, and shed granules years before their rated life. Architectural shingles from GAF or CertainTeed hold up measurably better here, and the cost difference on a Van Nuys single-story is usually $2,000 to $4,000 more than 3-tab, well worth it over a 20-year span.
A typical asphalt shingle tear-off and replacement on a 1,400 to 1,800 square foot Van Nuys home runs $16,000 to $22,000. That assumes standard decking is sound. If the decking is rotted at the valleys or along the eaves, expect $70 to $90 per sheet of plywood replaced.
The Valley-Specific Underlayment
We use a heavier synthetic underlayment on Van Nuys jobs than the manufacturer minimum. The heat here accelerates degradation of felt and cheap synthetics, and by the time the shingles need replacing, the underlayment is often the first thing failing. Ice and water shield in the valleys is not optional in our book, especially on low-slope planes where water lingers longer.
What We Find When We Tear Off
On Van Nuys homes built in the 1950s and 60s, we regularly pull off three or even four layers of old roofing, because past owners layered new shingles over old to save money. That adds weight, traps heat, and hides decking damage. A full tear-off clears all of it, and we photograph everything before we lay the new system down.
New Roof Installation in Van Nuys
New Roof Installation in Van Nuys applies to two situations: a home addition or ADU that needs a roof from scratch, or a complete roof system replacement where the existing structure is beyond salvage. For new infill construction and ADU additions popping up across Van Nuys, the roof plane is often shallow or low-slope, matching the postwar geometry of the surrounding tract, which means the new roof can’t take standard architectural shingles without a build-up or membrane. That’s a constraint many owners and even some builders don’t plan for until the quote comes back.
A new roof installation on a Van Nuys ADU or addition typically runs $11,000 to $18,000 depending on square footage and slope. A full system replacement on an existing structure runs $14,000 to $26,000, with membrane systems at the lower end for smaller footprints and architectural shingle systems at the higher end once the decking is addressed.
Membrane Systems for Shallow Pitches
On a shallow-pitch roof, particularly the ones we see on infill homes near Van Nuys Boulevard, standard shingles aren’t legal or practical. We install Boral and CertainTeed low-slope membrane systems that handle ponding and UV exposure without the leakage risk that shingles create at low angles. The membrane route usually costs $13,000 to $19,000 on a typical Van Nuys lot.
Decking and Structural Work
Any new roof installation includes a decking assessment. On Van Nuys homes from the 1950s, we often find skip sheathing or 1×6 board decking that needs a plywood overlay before any modern system can be fastened. Plan for $2,000 to $4,000 in structural prep on older tract stock if it’s never been done.
Trusted Brands We Service in Van Nuys
Marquis Roof Repair is authorized to install products from seven major roofing manufacturers, GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That breadth matters in Van Nuys because different roofs need different systems. A low-slope membrane job might call for Boral while a steep gable near the Sepulveda Basin is better served by GAF architectural shingles. We stock common profiles and colors for fast turnaround on Van Nuys jobs, so we’re not waiting on a distributor to ship what your roof needs. Seven manufacturer lines, one point of contact. You get a real material choice, not whatever we happen to carry this month.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Van Nuys Homes
– Builder-grade 3-tab shingles failing at valleys and penetrations before the warranty window closes. Van Nuys summers with highs over 100°F bake the asphalt and dry out the thin underlayment, so leaks show up at the weakest points first, usually the valleys and pipe boots.
– Shallow-pitch roofs that can’t legally take standard architectural shingles. Hundreds of Van Nuys tract homes were built for hot-mop asphalt at a pitch too low for modern shingles, so the correct replacement is a membrane or build-up, which costs more but actually sheds water.
– HOA architectural review catching an unapproved shingle color or profile. In newer master-planned pockets across Van Nuys, homeowners swap a roof without submitting a sample, and the HOA forces a redo because the drip edge or shingle color doesn’t match the approved palette.
– Rotted decking hidden under multiple layers of old roofing. On 1950s and 60s Van Nuys homes, we routinely find three or four layers of shingles trapping moisture against the plywood, and the decking is gone by the time it’s exposed.
Pricing for Roof Replacement in Van Nuys, CA
We Also Serve Cities Near Van Nuys
We work throughout the San Fernando Valley, including Valley Glen, Sherman Oaks, Encino, and North Hills. If you’re in one of those areas and need Roof Replacement, the same Marquis standard applies: full lifecycle coverage, seven brands, and honest diagnosis before we recommend anything. For details on our work specifically in this area, see Van Nuys.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
My Van Nuys home is only 12 years old – why is the roof already failing at the valleys?
A 12-year-old roof failing at the valleys in Van Nuys almost always means builder-grade 3-tab shingles and thin underlayment were installed, and the Valley’s UV load and 100°F summer heat have baked them out prematurely. The valleys and pipe penetrations are the first places to fail because water concentrates there and the sealant degrades fastest. This is one of the most common calls we get from newer infill homes near Van Nuys Boulevard in 91405. Call (866) 705-2978 and we’ll inspect the valleys and underlayment before recommending a targeted repair or a full replacement.
Will replacing my roof void my builder warranty?
No, replacing your roof won’t void the builder warranty on the rest of the home, provided the structural plane and any covered components aren’t altered by the roofing contractor. We document every job and avoid touching planes the builder still covers. On a recent infill home in Van Nuys, we tore off the failing 3-tab layer, added ice and water shield in the valleys, upgraded to GAF architectural shingles with a spec nailing pattern, and reset the drip edge, all without disturbing the builder-covered structural plane. The warranty stayed intact. Call (866) 705-2978 and we’ll walk through your specific warranty language before we quote.
My HOA in a newer Van Nuys development requires architectural approval – what do I need to submit?
Most Van Nuys HOAs require a shingle sample, a color profile, a drip edge detail, and sometimes the manufacturer’s specification sheet before any roof work starts. We provide all of that as part of the estimate package, and we’ve worked with enough Van Nuys HOAs to know what triggers a rejection: a color that doesn’t match the approved palette, a profile change from 3-tab to architectural without documentation, or a visible drip edge change. We handle the submission paperwork. Call (866) 705-2978 and we’ll prepare the architectural review package for your HOA.
Can my shallow-pitch Van Nuys roof take standard architectural shingles?
No, most shallow-pitch roofs in Van Nuys cannot legally take standard architectural shingles. The manufacturer’s installation specs require a minimum slope, usually 2:12 or 3:12 depending on the product, and the postwar tract geometry across Van Nuys often falls below that. The correct replacement is a low-slope membrane or a build-up system, which costs differently than shingles but actually sheds water instead of leaking. We’ll measure the pitch before we recommend anything, so you don’t pay for a system that fails early. Call (866) 705-2978 for a free inspection and a pitch-specific recommendation.
What’s worth upgrading first on a builder-grade roof replacement, and what can wait?
Upgrade the underlayment first, then the valleys, then the shingle profile. A heavier synthetic underlayment and ice and water shield in the valleys cost a few hundred dollars and prevent the most common Van Nuys failures. Upgrading from 3-tab to architectural shingles is the second priority, costing $2,000 to $4,000 more on a typical Van Nuys single-story but doubling the service life. What can wait: cosmetic upgrades like copper flashing or premium ridge caps. Those add curb appeal but don’t keep water out. Call (866) 705-2978 and we’ll price each upgrade line by line so you decide what’s in and what’s out.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Van Nuys and the San Fernando Valley.