Metal roofing
Architectural shingles
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 Somis
Roof replacement in Somis typically runs $14,000 to $38,000 for a standard composition shingle tear-off on a single-story ranch, and $30,000 to $75,000+ for tile work on hillside estates. Most jobs take 3 to 7 working days once materials land. We serve Somis from our Ventura County crews who know the local hillsides, the county permitting office, and the wind patterns off the Santa Susana foothills. If your roof is failing, call (559) 249-4917 to schedule a free estimate. We’ll send a real person, not a subcontractor, to walk your roof and give you a written price before any work starts.
Key Takeaways
- Somis roof replacements on acreage usually need a Ventura County building permit, and septic/well setbacks can affect where dump trailers and material piles go during tear-off.
- Santa Ana winds over 50 mph cause tile slippage and decking fastener failure on hillside properties; wind-rated installation matters more here than in flat-of-Ventura neighborhoods.
- Written pricing is delivered before work starts under The Relay Visibility Guarantee, and every job includes before-and-after photo documentation.
- We install GAF, Boral, CertainTeed, and other manufacturer-backed materials that meet Ventura County wildfire-resistant building code requirements.
Styles & brands we work with
Why Crestview Roofing Co Ventura Is Somis’s Preferred Roof Replacement Company
Somis homeowners call us because we understand what a roof replacement on acreage actually involves. Ventura County building permits read differently than city permits. Setbacks from septic systems and wells limit where we can stage materials and place a dump trailer. Steep driveways on hillside lots can mean hand-carrying tile bundles the last 30 feet. We scope all of that before quoting, so the price you see is the price you pay.
Dylan Pace leads our team, and he’s the person who answers when something needs to be made right. Every roof replacement we do in Somis is backed by the 365-Day Done Right Promise: if a covered repair fails within a year, we fix it at no charge and make a second visit for free. That’s in writing, on every job. Our crews arrive in uniform, background-checked, with a live arrival time you can track through The Relay Standard. No four-hour windows. No quote that balloons when the truck pulls up.
We answer the phone with a live person, 24/7. When a Somis homeowner calls at 7 a.m. because a Santa Ana windstorm tore a ridge cap off, someone picks up. That matters out here, where the next fire season is always a real thing.
How county permitting changes the job in Somis
Somis is unincorporated Ventura County territory. That means roof replacement permits come from the county building department, not a city hall. The county enforces strict setback requirements from septic systems and wells. On a two-acre lot, your septic tank might sit 40 feet from the house. That’s exactly where a dump trailer would normally go. We work around it, but it can add a day and a few hundred dollars in material handling if we have to shuttle debris to a staging area farther out. We check the county parcel map before we quote. You’ll never get a surprise change order for something we could have seen on the map.
Wind, fire, and tile on Somis hillsides
We replaced a cracked mission tile roof on a hillside estate off of Bradley Road, where wind-driven movement had shifted several tiles and exposed the underlayment. Our crew installed new Boral tiles over a high-temperature peel-and-stick ice and water shield, rebuilt the valleys with metal flashing, and upgraded the ridge vent to handle the Santa Ana gusts that regularly hit that ridge. That’s the kind of work Somis demands: high-end materials, wind-rated fasteners, and crews who know how to work on a 6:12 pitch with panoramic views and no room for error. For the full scope of what replacement involves, our Roof Replacement team walks you through tear-off, decking, underlayment, and finish work before you commit to anything.
Asphalt Shingle Roof Replacement in Somis
Asphalt shingle roof replacement in Somis is the most common job we do on the older ranch-style homes that dominate the flat and gentle-slope lots, and a full tear-off on a 1,600 to 2,200 square foot single-story runs $14,000 to $24,000 installed. That price includes removing the old shingles, inspecting and replacing damaged decking, new synthetic underlayment, new drip edge at all eaves and rakes, and architectural shingles from GAF, CertainTeed, or Owens Corning with a manufacturer’s wind rating up to 130 mph. We do not reroof over old shingles on homes in the county’s wildfire hazard zone; the building code requires a full tear-off so we can inspect the decking and install ember-resistant details.
When a tear-off beats an overlay
Older Somis ranch houses from the 1960s through the 1980s often have one layer of composition shingles that has never been removed. We almost always recommend a full tear-off. It lets us see rotten decking, failed flashing at skylights and chimneys, and gaps at the eave edges where embers get in during a wildfire. Overlaying shingles saves a little money up front, but it hides exactly the problems that cause leaks and fire damage later.
Decking and underlayment decisions
Asphalt shingle roof replacement in Somis frequently includes replacing sections of roof decking. The dry summers here can bake OSB to the point where fasteners lose grip, especially on west-facing slopes. We replace those sheets with new plywood or OSB before the underlayment goes down, and we use a high-temperature synthetic underlayment that holds up better than felt during the long install window between tear-off and shingle application.
New Roof Installation in Somis
New roof installation in Somis takes two different forms: a roof on a brand-new custom home or ADU, or a complete structural roof replacement on an existing estate home where the decking and framing need to be rebuilt. New construction roof installation on a detached ADU or workshop typically runs $11,000 to $22,000 for a composition shingle roof, and $20,000 to $40,000 for tile on a primary custom home. The price depends on roof complexity, material, and how far materials have to travel up the driveway. We quote these projects with a written line-item price before any work starts, so you know exactly what the roof costs when the framing goes up.
Outbuildings, ADUs, and shops
Somis acreage properties rarely have just one roof. You’ve got the main house, a detached garage, a workshop, maybe a horse barn or a covered breezeway connecting buildings. We scope all of them in one visit and give you separate line items for each structure. That way you can phase the work if the barn can wait a year and the house can’t. We also handle the decking on patios and breezeways as its own line item, because reusing damaged decking on those connecting structures is a common cause of premature underlayment failure.
New construction on open lots
New roof installation on a Somis new build involves coordinating with the general contractor, the county inspector, and sometimes a truss company. We schedule our work around the framing and window installation so the building gets dried in on time. Grading and drainage on open lots matter for roof performance too; we check that the final grade directs water away from the foundation before we finish the roof, because a roof only works if the water it sheds has somewhere to go.
Trusted Brands We Service in Somis
We install and repair roofs using GAF, CertainTeed, Tamko, and Boral materials, among others. Boral tile is the go-to for Somis estate homes that need mission or barrel tile matched to the original architecture. GAF and CertainTeed architectural shingles offer wind ratings suitable for the Santa Ana gusts that hit the hillsides, and their Class A fire ratings meet Ventura County’s wildfire-resistant building code. We keep common flashing details, ridge vent, and underlayment in our local supply chain so a Somis job doesn’t stall waiting on a single part. Material selection is part of every quote, and we give you the manufacturer’s spec sheet with the written price.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Somis Homes
- Tile slippage on steep hillside slopes. Wind uplift over 50 mph shifts tile, especially on older roofs where the decking fasteners have lost grip from years of expanding and contracting in the dry heat. Once one tile slides, rain gets under the underlayment and the damage spreads fast.
- Ember intrusion at eave and rake edges. Missing or deteriorated drip edge leaves a gap at the roof perimeter. During a wildfire event, embers get pulled into that gap and can ignite the attic. We replace drip edge on every full tear-off, no exceptions.
- Water damage at roof penetrations. Skylights, plumbing vents, and chimney flashings on older Somis ranch houses leak because the original flashing was never replaced when the shingles were. We pull all flashing and replace it with new metal at every penetration, every time.
- Improper decking reuse on patios and breezeways. When a previous roofer left damaged decking in place to save cost on a patio cover or breezeway connecting an outbuilding, the underlayment wears out early. We replace bad decking wherever we find it and note it in the written quote before work begins.
Pricing for Roof Replacement in Somis, CA
Here’s what Somis homeowners should expect to pay. A standard asphalt shingle tear-off and replacement on a single-story ranch runs $14,000 to $24,000. Architectural shingles on a larger two-story home run $22,000 to $38,000. Mission or barrel tile replacement on an estate home runs $30,000 to $75,000 depending on roof size, pitch, and the amount of custom flashing. What changes the price: number of roof penetrations, decking condition, accessibility for material staging, and whether county septic or well setbacks force longer debris hauls. The estimate is free, the price is written before work starts, and the number on the page is the number on the invoice. Call (559) 249-4917 to get one.
For an honest look at what your specific Somis roof needs, call (559) 249-4917. We’ll walk the roof, check the county parcel map, and hand you a written price. No pressure, no change orders.
We Also Serve Cities Near Somis
In addition to Roof Replacement in Somis, our crews cover the surrounding Ventura County communities. We regularly work in Camarillo, Santa Paula, Moorpark, and Newbury Park. If you live on the county line or in one of the neighboring unincorporated areas, call and ask; our dispatch covers most of Ventura County. The same written pricing and 365-Day Done Right Promise apply everywhere we work.
Serving Somis, CA - Our Local Coverage Area
We’re based in the Somis 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 Somis
Yes, Somis falls under Ventura County jurisdiction, and the county requires a building permit for roof replacement even when you’re installing the same material type. The county building department wants to verify that the new roof meets current fire-resistant assembly requirements and that nailing patterns meet wind uplift standards for the hillside zones. We handle the permit application for you, including the parcel-specific documentation for septic and well setbacks, and coordinate the inspection. The permit fee is typically $300 to $900 depending on project valuation, and we include it as a line item in your written quote.
Ventura County enforces minimum setback distances from septic tanks, leach fields, and water wells, and those setbacks apply to construction staging, not just buildings. On many Somis acreage lots, the best place to park a dump trailer or stack material piles is exactly where the county says you can’t. We check the county parcel map before quoting so we know where the setbacks fall. If we have to shuttle debris to a staging area farther from the house, that adds labor hours and we include it in the written price up front. It should never be a surprise on the invoice.
Yes. We install shingles and tile with manufacturer wind ratings up to 130 mph, and we use nail patterns and decking fastener schedules that meet or exceed the county’s wind uplift requirements for hillside exposure zones. For tile roofs, we use wind clips and upgraded underlayment on the ridge and eave edges where uplift forces are highest. The field vignette we shared above, the Boral tile job off Bradley Road, included a ridge vent upgrade and metal valley rebuild specifically because that ridge line catches the full force of the Santa Ana gusts.
A full tear-off removes all existing roofing down to the decking, lets us inspect and replace damaged wood, and allows us to install new underlayment, drip edge, and flashing. Reroofing over existing shingles leaves the old layer in place, which is faster and cheaper up front but hides decking damage and old flashing failures. Ventura County’s wildfire hazard zone code effectively requires a full tear-off for most Somis properties, and we recommend it regardless because it’s the only way to deliver a roof we can stand behind for the full 365 days of the Done Right Promise.
We treat every structure as its own line item in the written quote, with its own material takeoff and its own decking inspection. A detached ADU or workshop usually has a simpler roof shape than the main house, so the cost per square foot is often lower, but it still needs the same permit, the same underlayment, and the same drip edge details to meet county code. Many Somis ADUs were built before current fire-resistant roofing standards, so a replacement often includes upgrading the underlayment to a Class A assembly. We’ll give you a separate price for each building, so you can phase the work or do it all at once. Call (559) 249-4917 for an exact quote, estimates are free.
Written by Dylan Pace, Owner at Crestview Roofing Co Ventura, serving Somis since 2000.