Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Simi Valley, CA
Most Simi Valley homes were built between the mid-1960s and late 1980s, and their original concrete tile and 3-tab shingle roofs are now failing en masse after 35-55 years of Santa Ana winds and summer heat that regularly tops 100°F. We’re Birchbark Roofing, and we handle the dual challenge that defines roofing here: CAL FIRE Chapter 7A fire-code compliance on hillside parcels plus wind-engineered fastening systems that out-of-area crews often skip. Call (424) 766-4937 to schedule your free estimate, and we’ll put your exact price in writing before any work starts.
Our Main Simi Valley Services
Simi Valley homeowners call us most often for these three jobs. Each has its own page with detailed pricing, local permit guidance, and what to expect during the work.
Roofing Company in Simi Valley
We act as your Roofing Company in Simi Valley for everything from leak detection and maintenance inspections to full consultations on material choices suited to this valley’s conditions. Our crews coordinate dispatch from our Los Angeles office and arrive with background-checked, uniformed technicians who’ve worked specifically in Simi Valley’s wind corridors. We carry GAF, Atlas, and Tamko materials on most trucks, so common repairs don’t wait on a parts run.

Roof Repair in Simi Valley
Our Roof Repair in Simi Valley work focuses on the damage patterns we see repeatedly here: ridge caps loosened by Santa Ana wind events, underlayment dried brittle by summer heat, and the patchwork legacy of post-1994 Northridge earthquake repairs that are now failing. We photograph the completed clean-up before we leave, and every repair carries our 365-Day Done Right Promise.

Roof Replacement in Simi Valley
A Roof Replacement in Simi Valley on northern or eastern slope parcels triggers automatic CAL FIRE Very High Fire Hazard Severity Zone review, requiring Class A assemblies, ember-resistant vents, and documented underlayment approvals that out-of-area roofers often miss. We pull permits, pass inspections, and give you a written price in dollars before tear-off begins.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Simi Valley Homes Are Different
The housing stock here is remarkably uniform: ranch-style and split-level tract homes built during the valley’s rapid expansion from 1965 to 1989. Most original roofs were concrete or clay tile, with a wave of cheaper 3-tab shingle overlays added after the 1994 Northridge earthquake caused widespread structural and roof damage. Those emergency patches are now 30 years old, and the mismatched underlayments beneath them are creating leak paths that simple shingle replacement won’t solve.
Climate is the second factor. Summer temperatures on the valley floor routinely exceed 100°F, accelerating asphalt shingle granule loss and baking underlayments to brittleness far faster than in coastal Ventura County just 20 miles west. The Santa Susana Mountains and Simi Hills don’t just trap heat; they channel Santa Ana winds through mountain passes at speeds regularly exceeding 60 mph. Tile roofs here require proper mortar-set or mechanical fastening, shortcuts that might pass inspection elsewhere become lifted ridges and scattered tiles within a few seasons.
Fire code is the third distinction, and it’s non-negotiable. In hillside tracts near the northern foothills, the same ridgelines threatened by the 2019 Easy Fire near the Ronald Reagan Presidential Library, any re-roof permit automatically invokes California Chapter 7A compliance. This means Class A rated roof assemblies, ember-resistant soffit vents, and specific underlayment documentation. Simi Valley building department inspectors actively enforce this overlay, and we’ve seen out-of-area contractors caught unaware by the VHFHSZ designation on the parcel map.
Brands We Service in Simi Valley
We work with GAF, Atlas, Tamko, and Boral materials, and we stock common GAF and Atlas shingles plus Boral concrete tile replacements on our Simi Valley-area trucks. Most standard repairs don’t require a special order, and we can typically source Tamko architectural shingles within 48 hours for matching on larger jobs. See our brands for full specifications.
Pricing for Roofers in Simi Valley, CA
| Service | Typical range in Simi Valley |
|---|---|
| Minor shingle repair (up to 10 sq. ft.) | $250 - $450 |
| Moderate leak repair with underlayment patch | $500 - $950 |
| Ridge cap replacement (wind damage) | $800 - $1,400 |
| Tile replacement (concrete, per square) | $350 - $550 |
| Full underlayment replacement (tile roof) | $4,500 - $7,500 |
| 3-tab shingle replacement (partial, per square) | $400 - $650 |
| Architectural shingle replacement (full roof, 20-25 squares) | $12,000 - $18,500 |
| Concrete tile re-roof with Class A assembly | $18,000 - $28,000 |
| Chapter 7A compliance upgrade (vents, underlayment, documentation) | $2,500 - $4,500 |
| Chimney flashing repair or replacement | $650 - $1,200 |
Prices in Simi Valley run higher than flatland Los Angeles rates for two reasons: Chapter 7A compliance work on VHFHSZ parcels adds material and documentation labor, and wind-rated fastening systems for tile roofs require more fasteners per square than standard installations. Whatever your scope, you’ll see your exact price in writing before we start, with no change orders once the work begins.
Neighborhoods We Serve in Simi Valley
We work across the full valley, from the older ranch tracts near Santa Susana Pass Road to the hillside developments north of the 118 freeway. Most Simi Valley appointments are scheduled within a two-day window, with emergency tarping available for active leaks.
- Big Sky
- Bridle Path
- Indian Hills
- Santa Susana Knolls
- Wood Ranch
Service Area – Cities Near Simi Valley
Our crews work Simi Valley directly and coordinate with Cedarwell-affiliated teams for neighboring communities. We regularly take Moorpark, CA calls for tile and shingle work, handle wind-damage repairs in Oak Park, CA, consult on larger re-roofs in Thousand Oaks, CA, and assess storm damage for homeowners in Westlake Village, CA. Dispatch and scheduling are coordinated from our Los Angeles office; crews serve each city locally.
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 Roofers in Simi Valley
We typically schedule inspections within two business days for non-emergency leaks, and we offer emergency tarping for active water intrusion. A live person answers our phone 24 hours a day, including nights and weekends, so you can describe the damage and get on the calendar immediately. Call (424) 766-4937 for an exact appointment time, estimates are free.
If your property sits in a CAL FIRE Very High Fire Hazard Severity Zone, which covers most northern and eastern slope neighborhoods, your re-roof permit automatically requires Chapter 7A compliance documentation. This means Class A rated assemblies, ember-resistant vents, and approved underlayment paperwork. We pull these permits routinely and handle the plan-check process for you. Call (424) 766-4937 and we’ll verify your parcel’s designation before quoting.
Every visit includes shoe covers at the door, drop cloths through hallways and work zones, and pet-safe product choices where the material specification allows. If your dog needs to stay inside, we coordinate the door schedule with you so there’s no unexpected access. We photograph the completed clean-up before the crew leaves, and we follow the Cedarwell Care Promise: Clean up like it’s our own home, Ask before we move anything, Respect your family’s quiet hours, and Explain the price before the work.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Simi Valley Customers Say
"New roof section and gutter guards. They protected everything below, worked tidy, and did a full nail sweep of the yard and driveway at the end. Thoughtful crew."
- Mariana Lopez"After a storm we had a few spots to fix. They were gentle around the garden, laid tarps, and swept the driveway spotless. You'd never know a roof crew had been here."
- Dawn Kirkland"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






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