Metal roofing
Architectural shingles
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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 Valley Glen
When your Valley Glen home needs a new roof, the real question isn’t just which shingle goes on top. It’s what our crew will find when we tear off what’s already there. Most Valley Glen roofs are on their second or third shingle layer over 1950s and 60s decking. That changes the scope, the price, and sometimes the whole plan. We’ve been opening up older Valley Glen roofs long enough to know what to expect, and we write every allowance into the contract before the first shingle comes off. Call (855) 382-1073 to schedule a free estimate.
Why Barnwood Roofing Is Valley Glen’s Preferred Roof Replacement Company
Valley Glen homeowners don’t need another sales pitch. They need someone who understands that a 1958 ranch off Hazeltine Avenue has different problems than a newer build near Los Angeles Valley College. Our Roof Replacement team has torn open enough Valley Glen roofs to know what’s hiding underneath: cracked skip sheathing, rotted decking around old vents, and flashing that gave up years ago. We don’t guess. We inspect, document, and price what we find.
The difference shows up in how we handle surprises. When we explained a re-roof to a homeowner near Valley Glen Park, we walked them through the three layers we’d need to remove, the decking repairs we anticipated, and the ventilation corrections their low-pitch addition needed. The homeowner approved the full scope in writing before we started. That’s not pressure. That’s how a roof should be sold.
Ruben Calloway, our owner, built Barnwood Roofing around one rule: inspection first, recommendation second. If a repair buys you five more years, we’ll say so. If the roof is done, we’ll show you why with photos and measurements. No scare tactics.
Styles & brands we work with
Roof Installation in Valley Glen
Roof Installation in Valley Glen means more than nailing shingles over what’s already there. On an older Valley Glen home, proper installation starts with tear-off, deck inspection, and ventilation correction. We install full systems: underlayment, ice and water shield, drip edge, starter strip, ventilation, and the shingle or flat-roof membrane itself. A complete asphalt shingle roof installation on a typical 1,200 to 1,800 square foot Valley Glen ranch runs $11,000 to $18,000 depending on decking condition and material tier.
Full Tear-Off and Deck Inspection
Valley Glen homes rarely qualify for a simple re-cover. Most have two or three existing shingle layers, which violates current code and hides decking damage. We tear off to the sheathing every time, inspect the deck plank by plank, and replace any section that’s delaminating or rotted.
Ventilation and Low-Pitch Additions
Those flat-roofed carport additions and barely-pitched patio covers were never vented properly when they were built. In Valley Glen’s 100°F-plus summers, trapped heat cooks the deck from below. We correct slope issues and add ridge and soffit venting so the new roof actually lasts.
Roof Replacement Contractor in Valley Glen
Roof Replacement Contractor in Valley Glen work means taking ownership of the whole job, not just the shingle layer. When we replace a roof on a mid-century ranch near Sherman Way, we handle the tear-off, deck repair, underlayment, vents, flashing, and final inspection. The price you approve is the price you pay unless we find something structural, and then we stop, document it, and get written sign-off before proceeding. A full roof replacement in Valley Glen typically runs $12,500 to $22,000, with architectural shingle upgrades pushing toward the upper end.
Architectural Shingle Replacement
Most Valley Glen homeowners choose architectural shingles for replacements. They handle the Valley heat cycle better than 3-tab, and the dimensional profile updates a 60 year old home without changing its character. We carry brands like GAF and Atlas and match product to the home’s pitch and exposure.
Flat Roofing Replacement
Those flat-roofed additions and carports need a different system entirely. We install modified bitumen and single-ply membranes with proper taper to move water off the deck. Too many Valley Glen flat sections were layered over without correcting ponding, and that’s exactly what we fix before it leaks again.
Trusted Brands We Service in Valley Glen
We don’t stock one brand and push it on every home. Barnwood Roofing sources from seven manufacturers, including Atlas, IKO, and Boral, so our recommendation comes from what fits your roof’s pitch, exposure, and your budget, not from what’s sitting in our yard. For Valley Glen’s sun-scorched roofs, we lean toward brands with proven UV and granule-loss resistance. We’ll show you two or three options at different price points and explain the tradeoffs honestly. That’s the whole advantage of a multi-brand roofer.
Common Roof Replacement Problems We See in Valley Glen Homes
- Stacked shingle layers hiding bad decking. Decades of quick re-covers mean granule loss and cracking on top are the visible part. Underneath, we routinely find rotted or delaminated 1×6 skip sheathing that nobody addressed.
- Low-pitch additions with no underlayment. Flat-roofed carports and patio covers were built with minimal slope and no real waterproofing. Water backs up at the edges, and in Valley Glen heat, the deck cooks from below until it fails.
- Failed flashing at valleys and penetrations. Santa Ana winds drive debris into old flashing seams. Dry-season UV bakes out sealant. By the time water shows up at the fascia, the flashing has been done for months.
- Neglected ventilation causing premature shingle death. Attics that never got proper ridge or soffit venting reach 140°F in summer. Shingles age twice as fast, and we see granule loss concentrated right over the hottest sections.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Replacement in Valley Glen, CA
A full tear-off and asphalt shingle replacement on a standard Valley Glen ranch runs $12,500 to $18,500. Architectural shingles add $1,500 to $3,500 depending on brand and color. Flat roof sections on additions or carports run $6 to $9 per square foot for membrane replacement. What moves the number in Valley Glen specifically? Decking condition. If we find rotted sheathing under those old layers, count on $2 to $4 per square foot extra for deck replacement. We write allowances into every contract so you know the maximum before work starts. Call (855) 382-1073 for a line-item quote, free.
Key Takeaways for Valley Glen Homeowners
- Most Valley Glen roofs are on their second or third shingle layer, so full tear-off is nearly always required.
- Decking and ventilation corrections are the real scope on older homes, not the shingles themselves.
- We carry seven manufacturers (including Atlas, IKO, and Boral) and match product to your roof’s pitch, sun exposure, and budget.
- Inspection is a standalone service. We’ll tell you flat out if a repair buys you real years.
- Every surprise gets documented, priced, and approved in writing before we touch it.
We Also Serve Cities Near Valley Glen
Barnwood Roofing covers the whole San Fernando Valley. Beyond Valley Glen, our crews regularly work in Van Nuys, Sherman Oaks, Encino, and North Hills. Each has its own mix of mid-century tract homes and flat-roofed additions, and we apply the same tear-off-first, inspect-the-decking approach everywhere. Learn more about our work across the region at our Valley Glen service page.
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
No. Building code limits Valley Glen roofs to two shingle layers total, and most older homes here are already at or past that limit. Re-covering over failed layers means the new roof inherits every hidden problem underneath. We tear off to the sheathing on every replacement. It’s the only way to actually see what we’re dealing with. If you’re curious what’s under your current layers, call (855) 382-1073 and we’ll schedule an inspection.
The leak usually isn’t from the membrane itself. It’s from slope. Valley Glen’s 1950s and 60s flat-roof additions were built nearly level, which lets water pond until it finds a seam. That’s why our replacement work on flat sections includes re-tapering the deck or adding tapered insulation to push water toward the drain or scupper, not just laying down a new roof. The membrane you had before may have been fine. The slope was never fixed.
Yes, and measurably so. Valley Glen routinely sees summer temperatures above 100°F, with attic temps pushing 140°F. That heat cycling accelerates asphalt breakdown. Shingles that might last 25 years in coastal LA often show significant granule loss and cracking by year 15 here. That’s why ventilation correction matters so much on Valley Glen replacements. A properly vented attic keeps shingle temps down and adds years to the roof at almost no cost. Call (855) 382-1073 if you want us to assess your current ventilation.
We price them before we start. Every Valley Glen replacement contract includes a written allowance for decking repair based on what we see during the pre-inspection. If we open the roof and find something outside that allowance, we stop, photograph it, show you exactly what we found, and get written approval for the additional scope before picking up a hammer. You never get an invoice surprise at the end. That’s how Ruben Calloway has run Barnwood Roofing from day one.
Look for three things. First, does the bid include full tear-off of all existing layers, or does it assume a re-cover? In Valley Glen, any bid that doesn’t include full tear-off is leaving a problem under the new roof. Second, does it include a written decking allowance? If not, you’ll get a change order the moment old sheathing shows up. Third, does it specify ventilation corrections for low-pitch sections? If the bid doesn’t mention ridge vents or soffit vents on a 1950s home, it’s incomplete. If you want help reading the two bids side by side, call (855) 382-1073 and we’ll walk through them with you, whether or not you hire us.
Get Your Free Valley Glen Roof Replacement Estimate
If you’re in Valley Glen and wondering what’s actually under your shingles, let’s find out. We’ll inspect your roof, show you what we see, and give you a written estimate that includes tear-off, decking allowance, ventilation corrections, and your material options. Call (855) 382-1073 to schedule your free estimate. We serve all of 91404 and the surrounding Valley Glen neighborhoods, from the blocks around Valley Glen Park to the streets north of Sherman Way.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving Valley Glen and the San Fernando Valley.