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Roof Replacement in Simi Valley, CA | Birchbark Roofing Ventura

Roof Replacement in Simi Valley - Free Roof Inspection, Written Price

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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Licensed & Insured Written Quotes Free Estimates All Brands Satisfaction Guarantee
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Architectural shinglesArchitectural shingles
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Roof Replacement in Simi Valley: What Opening Up a 1960s Roof Actually Turns Up

If you own a home in Simi Valley built before 1980, especially in the flatlands east of Tapo Canyon Road, a roof replacement here rarely stops at shingles. What our crews find under the old wood shake or dried-out composition shingle is what changes the quote: decking nailed every 12 to 18 inches instead of the 6-inch pattern today’s wind-uplift code requires, rotten sheathing at chimneys and plumbing boots, and flashing that predates current seismic shear standards. So the honest answer for most Simi Valley homeowners is this: expect a permit-triggered reroof to include some decking re-nailing or full sheathing replacement before the new covering goes down. Call (350) 240-5534 and we’ll walk you through what that means for your exact roof, in writing, before any work starts.

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Key Takeaways for Your Simi Valley Roof Replacement

  • Most full Roof Replacement projects in Simi Valley run $14,000 to $38,000 depending on size, pitch, covering choice, and how much decking needs to be re-nailed or replaced once the old roof comes off.
  • Original 1960s wood shake roofs east of Tapo Canyon Road almost always fail current wind-uplift inspection unless every sheet of decking is re-nailed to the trusses.
  • Permits are pulled on every replacement in Simi Valley, and the inspection pass is part of the job, not an afterthought.
  • Birchbark Roofing Ventura gives you a written price in dollars before work begins, never a verbal estimate that drifts.
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Styles & brands we work with

Architectural shingles
Architectural shingles
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Fast, Reliable Roof Replacement Across Simi Valley

Birchbark Roofing Ventura replaces roofs across Simi Valley, from the 1960s ranchers along Royal Avenue to the tile-roofed hillside subdivisions built in the 1980s and 1990s. We know these houses because we’ve opened them up. The post-war tract homes west of the 118 have low-pitched roofs and truss framing that makes tear-off straightforward, but the decking underneath often hasn’t been touched since the day it was installed. The steeper lots near Wood Ranch and Big Sky carry concrete tile that cracks under Santa Ana thermal movement, and when wind-driven rain gets through those cracks, it rots fascia and soffit before you ever see a ceiling stain. A live person answers our phone 24 hours a day, 7 days a week. When you call (350) 240-5534, you’ll talk to someone who can schedule your free roof assessment in Simi Valley, not a voicemail tree.

Why Birchbark Roofing Ventura Is Simi Valley’s Preferred Roof Replacement Company

Homeowners in Simi Valley call us because we put the protections in writing. You get a written price before any work starts. You get a 365-Day Done Right Promise stamped on every roof replacement we perform, covering the work if it isn’t right. And you get the Cedarwell Care Promise on every job: shoe covers at the door, drop cloths through the hallway, pet-safe product choices where there’s a choice, and a photo of the completed clean-up before our crew leaves. Erik Lindgren runs our crews under that standard, and every technician who walks onto your Simi Valley property is background-checked and uniformed, so you know exactly who is walking through your door and onto your roof.

We’re part of the Cedarwell family of independently owned roofing businesses, which has held its locations to the C.A.R.E. values since 2000: Clean up like it’s our own home. Ask before we move or touch anything. Respect the family’s time and quiet hours. Explain the price before the work. That’s how we treat a 1972 rancher off Royal Avenue the same way we’d treat a newer tile roof near Sinaloa Lake.

Roof Replacement Contractor in Simi Valley

A Roof Replacement Contractor in Simi Valley has to handle what a tear-off reveals. On the older flatland houses near the Tapo Canyon corridor, that often means decking nailed at 12-inch spacing, not the 6-inch pattern required for current wind-uplift and seismic shear compliance. On the tile roofs in the hills above the city, it means cracked tiles and underlayment that dried out years before the first leak showed on the ceiling. A full Roof Replacement in this market typically runs $14,000 to $38,000, with the biggest variable being the condition of the sheathing once the old roof comes off.

What the job involves here

We remove the existing roof covering down to the decking. In Simi Valley’s older tract homes, that step often doubles as an inspection: you see the nail spacing, you see the rot, you see exactly what code requires before the new roof goes on. Then we re-nail or replace sheathing to spec, install new underlayment, flashing, drip edge, and the covering you’ve chosen.

When a Simi Valley homeowner needs this

You need a replacement when the original wood shake is curling, splitting, or losing its weather-resistance; when composition shingles are lifting at the eaves from years of Santa Ana winds; or when concrete tile has cracked so widely that the underlayment below is exposed. A repair can buy a season. A replacement ends the cycle.

Asphalt Shingle Roof Replacement in Simi Valley

An Asphalt Shingle Roof Replacement in Simi Valley is the most common choice for the city’s low-pitched 1960s and 1970s ranch homes, and it makes sense on a couple of fronts. Modern architectural shingles from GAF, CertainTeed, or Owens Corning weigh less than concrete tile, so they don’t overload trusses that were designed for wood shake. And they install cleanly on the 4:12 and 5:12 pitches you see on most of the tract housing around the 118 corridor. A full asphalt shingle Roof Replacement in Simi Valley generally runs $14,000 to $28,000, with the final number set by square footage and how much decking needs work.

The decking underneath decides the price

On original 1960s shake roofs, the decking was installed long before modern nail schedules existed. We re-nail every sheet to the trusses at the spacing current code requires, replace any sheathing that’s delaminated or rotten, and only then lay the new underlayment and shingles. That’s not a surprise we spring on you mid-job; it’s an allowance we write into the contract so the price is in front of you before the first nail comes out.

Wind and fire considerations

Simi Valley sits in a high-wind corridor, and the Santa Anas test every seam on a roof. We install architectural shingles rated for 130 mph wind with the manufacturer’s required start-strip and valley flashing pattern, which matters for the permit inspection and for the years that follow. On the fire-resistance side, asphalt shingles give older wood shake homes a Class A rating without the structural weight of tile.

Before & after

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Recent Project
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Full Restoration
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Complete Upgrade

Trusted Brands We Service in Simi Valley

Birchbark Roofing Ventura works with materials from GAF, CertainTeed, Tamko, and Boral, so you’re choosing the warranty and performance characteristics that fit your house, your budget, and your roof’s pitch. Low-pitched tract homes do well with CertainTeed or GAF architectural shingles. Hillside tile roofs in Simi Valley neighborhoods like Wood Ranch often match best with a Boral or Tamko concrete tile replacement. Because we stock components and order direct from these manufacturers for our Simi Valley jobs, we can often get materials to your property without the wait that some out-of-area contractors run into.

Common Roof Replacement Problems We See in Simi Valley Homes

  • Decking that fails wind-uplift inspection. Original 1960s decking was often nailed every 12 to 18 inches. Current code requires 6-inch spacing. If the old roof comes off and the inspector looks at that decking, you’ll need every sheet re-nailed or replaced before the new covering goes on.
  • Rotted sheathing at chimney and plumbing boots. Low-pitched roofs from the post-war boom collect water around penetrations once the original underlayment dries out. We find rotten decking there after tear-off, far more often than homeowners expect.
  • Cracked concrete tile from thermal movement. Santa Ana events bake the tile, then the temperature drops at night. The tile expands and contracts until it cracks, and wind-driven rain enters through those cracks to rot fascia and soffit before the ceiling shows a stain.
  • Original wood shake at the end of its life. In the older neighborhoods east of Tapo Canyon Road, the shake installed in the 1960s is past its service life. Fire-resistant requirements and structural weight limits mean homeowners usually replace it with lightweight concrete tile or asphalt shingles rather than shake.

Pricing for Roof Replacement in Simi Valley, CA

A full Roof Replacement in Simi Valley typically runs $14,000 to $38,000. Asphalt shingle replacements land in the $14,000 to $28,000 range for most single-family homes. Tile replacements on hillside lots run higher, generally $22,000 to $38,000, because the covering costs more and the tear-off is slower. The wild card in Simi Valley is the decking: on older flatland homes, re-nailing or replacing sheathing adds $1,500 to $4,000 depending on roof size. You’ll see your exact number in writing before we start, with allowances for any decking work written into the contract rather than added as a change order later. Call (350) 240-5534 for a free roof assessment and written quote.

We Also Serve Cities Near Simi Valley

If you live just outside Simi Valley, our crews cover Moorpark, Newbury Park, Fillmore, and Somis as well. Dispatch and scheduling are coordinated from the brand’s Los Angeles office, and crews serve Simi Valley locally. Learn more about our work across the region on our Roof Replacement service page or see what we do specifically in Simi Valley.

Serving Simi Valley, CA - Our Local Coverage Area

We’re based in the Simi Valley 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 Simi Valley

Why Simi Valley Chooses Birchbark Roofing Ventura

We set the standard for roof replacement in Simi Valley.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Simi Valley

Getting your roof replacement handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roof replacement needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Simi Valley - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roof replacement pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Simi Valley Customers Say

Trusted by homeowners across Simi Valley and surrounding areas.

★★★★★

"Roof repair after a leak. What won me over was the cleanup, they ground sheeted the flower beds so no debris fell in, and they ran a magnet over the whole yard for nails. Careful crew."

Gordon Fiske · Verified customer
★★★★★

"Calm, respectful crew that clearly take pride in leaving a clean site. Fixed the flashing that was leaking and showed me photos from up top since I wasn't about to climb up there."

Pete Villarreal · Verified customer
★★★★★

"Full replacement. They protected the landscaping and the patio furniture before they started tearing off. Finished when they said and the yard was cleaner after than before."

Reba Santoyo · Verified customer

Ready for Roof Replacement in Simi Valley?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Simi Valley.

(350) 240-5534

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