✓ California Licensed Contractor
✓ CSLB #964965
✓ Family-Owned & Operated
✓ Fully Insured
✓ Serving California Homeowners Since 2014

LICENSED ROOFING CONTRACTOR IN VENTURA COUNTY
Licensed Roofing Contractor in Simi Valley, CA
Serving Simi Valley homeowners in 93063 and 93065 with licensed roof replacements, repairs, and inspections backed by Ventura County permits and manufacturer warranties.
Since 2014
Serving California homeowners
60+
Verified customer reviews
$0
Down · 100% financing available
Lic. 964965
CSLB licensed & insured

— Built for this community
Your Neighbors Already Replaced Their Roof. Here's Why.
Drive down any street in the Wood Ranch or Bridle Path neighborhoods and you'll spot fresh rooflines every few houses. That's not coincidence. Simi Valley's inland heat cycles crack and curl asphalt shingles faster than most homeowners expect, and the dry Santa Ana winds pull at loose edges until a $400 repair becomes a $14,000 replacement. 93065 homes built in the 1980s and 90s are hitting the end of their 25-year shingle life right now. Many owners don't realize it until they see ceiling stains after the first winter rain. Green Conception has replaced roofs on dozens of homes in this city over the past few years. Most calls start the same way: a neighbor got it done, and the homeowner finally walked outside and looked up. Don't wait for the rain to make the decision for you.
— The benefits
6 Reasons Simi Valley Homes Need a Licensed Roofing Contractor
Heat Cycles Split Shingles Fast
93063 and 93065 see 50-plus days above 95 degrees most years. That thermal expansion and contraction cracks shingles at the tabs, letting moisture in before you ever notice a drip inside.
Santa Ana Winds Lift Loose Edges
Wind gusts through the Simi Hills regularly hit 50-plus mph. Any shingle that's already curling becomes a peel-back risk, and one bad event can expose decking that takes on water within hours.
Permits Keep Your Sale Clean
Ventura County requires permits for full roof replacements. Unpermitted work shows up in title searches and can kill escrow. Every job Green Conception runs gets a city inspection sign-off before we leave.
Manufacturer Warranties Require Licensed Install
Top shingle brands like Owens Corning and GAF void their warranties if an unlicensed contractor installs them. A licensed roofing contractor in Simi Valley protects the warranty you're paying for.
Insurance Claims Go Smoother
Insurers in Ventura County ask for licensed contractor documentation before cutting checks. Having a CA-licensed roofer on record speeds up approvals and reduces back-and-forth with adjusters significantly.
Flat Roofs Need Specific Experience
Many Simi Valley commercial and multi-family properties use flat TPO or modified bitumen systems. These fail differently than pitched roofs and need contractors who've actually run those installs before.
01
Free Roof Inspection
We get on the roof and check every surface, flashing point, and penetration. You get a clear picture of what's failing and what still has life left in it.
02
Written Quote, No Pressure
93065 and 93063 homeowners get a line-item written quote before anything moves forward. No vague estimates. No deposit required to hold your spot.
03
Pull Ventura County Permit
Permits for residential roof replacements in Ventura County typically take 3-5 business days. We handle all the paperwork so you don't have to chase the building department.
04
Scheduled Installation Day
Materials arrive the morning of install. Decking gets checked and replaced where needed, new underlayment goes down first, and shingles or membrane follow in the correct sequence.
05
City Inspection and Walkthrough
A city inspector signs off on the completed roof. Then we do a final walkthrough with you, confirm clean gutters and grounds, and hand over all warranty documentation.
— How it works
How Green Conception Handles Your Roof in Simi Valley
Every roofing job in Simi Valley starts with a free inspection, no obligation, no deposit. We get on the roof, check decking condition, flashing, valleys, and penetrations. Then we deliver a written quote with line-item breakdown so you know exactly what you're paying for. Once you approve, we pull the required Ventura County permit - typically 3-5 business days for residential projects in 93063 and 93065. Materials get ordered and scheduled tight to your timeline. Installation follows a sequenced process that protects your interior even if weather shifts mid-job. A city inspection closes out the permit, and we do a final walkthrough with you before we consider the job done. No surprise charges added after the fact.
— More from Green Conception
More Roofing Services We Run



Roof Repair and Storm Damage
Storm damage repairs in Simi Valley move fast after Santa Ana events. We patch blown-off sections, replace cracked flashing, and re-seal lifted shingles the same week you call. Small repairs done right stop the water intrusion that turns into a full replacement job next year.
Attic Ventilation Upgrades
Simi Valley attics trap heat at levels that cook underlayment from below. Adding ridge vents, soffit vents, or powered attic fans drops attic temps dramatically and extends shingle life by years. We check ventilation ratios on every job and flag problems before they compound.
- Why us
Why Simi Valley Homeowners Choose Green Conception

How Green Conception Thinks About Roofing in Simi Valley
Simi Valley roofs don't fail randomly. They fail in a pattern - heat degrades the granules, wind lifts the edges, then one wet winter does the rest. Understanding that pattern is what makes a roof last 30 years instead of 15.
"Simi Valley roofs get hit from both directions - brutal heat in summer, hard Santa Ana winds in fall. The best Licensed Roofing Contractor work out here starts with understanding that before you ever pick a shingle product."
— Nick K. · Founder
Agoura Hills (91301)
Moorpark (93065)
Westlake Village (91361)
Green Conception Roofing - Serving Simi Valley, CA 93063 and 93065
Green Conception has worked on roofs across Simi Valley, from the ranch-style homes in Wood Ranch and Bridle Path to the older tract housing near the 118. Both ZIP codes - 93063 and 93065 - are core service areas for us, not edge cases. We know the heat exposure differences between north-facing and south-facing slopes in this city, and we see the wind damage patterns that repeat after every Santa Ana season. Licensed, insured, and permitted on every project.
Oak Park (91301)
— Common questions
Simi Valley Roofing Questions Answered Honestly
How long does a roof replacement take in Simi Valley?
Most residential roof replacements in Simi Valley take one to two days for the installation itself. Permit processing through Ventura County adds 3-5 business days before work starts. Total project timeline from signed quote to city inspection is typically 1-2 weeks depending on material availability and weather.
Does Ventura County require a permit to replace my roof?
Yes. Ventura County requires a permit for full roof replacements. Skipping the permit is a code violation that shows up in title searches when you sell. It can also complicate insurance claims. Green Conception pulls the permit on every job and schedules the required city inspection before closing out the project.
What roofing materials work best in Simi Valley heat?
Architectural asphalt shingles with Class 4 impact ratings and cool-roof granules hold up best in Simi Valley's inland heat. Concrete tile is also a strong option for longevity. Both work well in 93063 and 93065. Cheap three-tab shingles tend to fail faster in high-heat inland valley conditions than coastal installs.
How much does a roof replacement cost in Simi Valley?
A typical single-family home roof replacement in Simi Valley runs $12,000 to $22,000 depending on square footage, pitch, material choice, and decking condition. Flat roofs and tile systems sit at different price points. Green Conception provides a written line-item quote so you know exactly what each component costs before you approve anything.
Can I file an insurance claim for Santa Ana wind damage?
Yes, if the damage was caused by a wind event, most homeowner policies in Ventura County cover it. You'll need a licensed contractor's written damage assessment to support the claim. Green Conception provides documentation that meets insurer requirements. Starting with a free inspection costs you nothing and gives you the paperwork your adjuster needs.
How do I know if I need repair or full replacement?
Age and scope of damage determine the call. Roofs under 15 years with isolated damage usually repair well. Roofs over 20 years in 93063 or 93065 with multiple failure points typically cost more to keep patching than replacing outright. A free inspection gives you honest numbers on both options so you can decide.
Is Green Conception a licensed roofing contractor in California?
Yes. Green Conception holds an active California contractor license and carries full liability insurance. Working with a Top-Rated Licensed Roofing Contractor means your project is covered if anything goes wrong, your manufacturer warranty stays intact, and your Ventura County permit gets signed off correctly. License numbers are available on request before you commit to anything.
What neighborhoods in Simi Valley do you serve?
Green Conception works throughout Simi Valley including Wood Ranch, Bridle Path, White Oak, Oakridge Estates, and the newer developments along the 118 corridor. Both ZIP codes - 93063 and 93065 - are fully covered. Ranch homes, two-story tract houses, hillside properties, and flat-roof commercial buildings all fall within our regular service area.


