Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Thousand Oaks
Roof replacement in Thousand Oaks typically costs between $14,500 and $28,000 for a standard single-family home, with most architectural shingle tear-offs landing in the $18,000 to $24,000 range. That’s the number before any decking replacement, which is the single biggest wildcard on older Conejo Valley homes. We schedule most Thousand Oaks replacements within two to three weeks of the signed quote, and the actual tear-off and install runs four to seven working days depending on roof size, pitch, and decking condition. Call (325) 246-5075 and Dylan Pace or one of our Thousand Oaks project leads will walk your roof line-by-line before you ever see a number.
We know the difference between a 1964 ranch in Wildwood and a 2008 stucco two-story off Lynn Road. Those two roofs demand different scoping, different decking budgets, and different permitting conversations. That’s why we send a background-checked, uniformed technician who photographs everything, writes the price before work starts, and gives you a live arrival time you can track. No four-hour windows. No quote that changes at the door.
Why Crestview Roofing Is Thousand Oaks’s Preferred Roof Replacement Company
Thousand Oaks homeowners call us because our Roof Replacement team puts every promise in writing. The price you approve is the price on the final invoice. Before work starts, you get a line-item quote covering tear-off, decking estimate, underlayment, shingles, flashing, ventilation, haul-away, and permit fees. After the job, you get before-and-after photos and a digital invoice texted to your phone. That’s the Relay Visibility Guarantee, and it’s how we’ve run every job since 2000 as part of the Relay Home Co. family.
We answer calls with a live person 24/7. Not a voicemail loop. Not a call center script. When you call about a ridge vent question or a decking allowance, you reach someone who can actually answer you. For Thousand Oaks homeowners comparing bids, that matters when the second roofer hasn’t returned a call in three days.
Every replacement is covered by a 365-Day Done Right Promise: if anything we installed fails within a year, we fix it at no charge. That’s in writing, included with every job, no negotiation required. Dylan Pace built this company on the belief that a roofer should be judged by what happens after the invoice is paid, not before.
We serve all of Thousand Oaks including Newbury Park, Lynn Ranch, Wildwood, and the Los Robles corridor. Our crews know the hillside wind patterns off the 101 and the 23, and we scope every roof accordingly.
Asphalt Shingle Roof Replacement in Thousand Oaks
Asphalt Shingle Roof Replacement in Thousand Oaks runs $14,500 to $22,000 for a typical 1,800 to 2,400 square foot single-story home using architectural shingles from GAF, CertainTeed, or Owens Corning. The job starts with a full tear-off down to the decking, because you can’t properly inspect what’s underneath a 40-year-old roof until you remove it. Then we re-nail or replace damaged sheathing, install new drip edge and underlayment, lay the shingles with starter strip and proper nailing patterns, flash every penetration, and finish with ridge cap and ventilation.
Architectural Shingles vs. Three-Tab
Architectural shingles carry a 30 to 50 year manufacturer warranty and add about $2,500 to $4,000 over three-tab on a typical Thousand Oaks roof. They hold up better against the wind-driven rain that hits hillside homes in Wildwood and Lynn Ranch. Most Thousand Oaks homes we replace get architectural shingles, and we’ll show you the exact price difference in writing before you decide.
Flat Roofing and Modified Systems
Some Thousand Oaks mid-century homes and additions have flat or low-slope sections over patios and carports. We handle those with fully adhered modified bitumen or single-ply systems, and we always inspect the transition flashing where the flat roof meets the pitched shingled field. Water intrusion at that transition line is one of the most common callbacks on Conejo Valley homes, so we detail it carefully on every job.
New Roof Installation in Thousand Oaks
New Roof Installation in Thousand Oaks for new construction or large additions runs $16,000 to $32,000 depending on roof complexity, pitch, and material choice. This is a different job than a re-roof because there’s no old roof to tear off, so the schedule is faster, but the framing, decking, and ventilation have to be planned from scratch. We work directly with your general contractor or architect, or we can manage the roofing scope independently with a full materials list, written price, and permit-ready drawings.
Decking and Sheathing for New Construction
On new construction we typically specify 7/16-inch OSB or 1/2-inch CDX plywood, depending on rafter spacing and roof pitch. For Thousand Oaks hillside lots with high wind exposure, we may recommend upgraded fastening patterns or thicker decking to meet current code. We’ll put that in the written quote so there’s no surprise when the lumber order goes in.
Permits and Rough-In Coordination
Every new roof in Thousand Oaks needs a building permit, and many need a final inspection sign-off before the project closes. We pull the permit, schedule the inspection, and coordinate with your GC if other trades are sequencing through the roof. You’ll see the permit line item on your written quote, not buried in an “allowance.”
Trusted Brands We Service in Thousand Oaks
We install and repair roofs using manufacturer-backed materials from GAF, CertainTeed, and Owens Corning. That means your shingle warranty sits with the manufacturer, not just with us. For Thousand Oaks homes in high wildfire severity zones, we often pair GAF Timberline architectural shingles with Class A fire-rated underlayment and ember-resistant ridge vent details. We keep standard shingle colors in regional stock so a typical replacement in the Newbury Park or Wildwood area doesn’t stall waiting on a truck from out of state. If you have a specific color or profile in mind, tell us when you call and we’ll confirm availability before the first truck rolls.
Common Roof Replacement Problems We See in Thousand Oaks Homes
- Delaminated 1960s-70s decking. Original 3/8-inch plywood sheathing is common across Thousand Oaks tracts. We find it delaminating under the old shingles on nearly half the tear-offs we do, which means budgeting for new 7/16-inch OSB from day one, not discovering it mid-job.
- Wind-driven rain on hillside exposures. Homes in the Los Robles, Wildwood, and Lynn Ranch corridors catch strong wind patterns that drive water under shingle edges. Twenty-year-old flashing gets reused by some roofers. We replace it. New drip edge and ice-and-water shield in valleys and penetrations is the difference between a roof that lasts 25 years and one that leaks at year 8.
- Baked-out underlayment from inland heat. The Conejo Valley runs hot and dry. Old felt underlayment cracks and tears apart under decades of sun. We lay full synthetic underlayment on every Thousand Oaks replacement, which handles temperature swings better than traditional felt.
- Missing ridge ventilation. A surprising number of 1980s and 1990s Thousand Oaks homes lack adequate ridge or eave venting. Trapped attic heat shortens shingle life regardless of brand. We evaluate ventilation on every quote and include ridge vent or balanced intake if the attic needs it.
Pricing for Roof Replacement in Thousand Oaks, CA
Here’s what you’ll see on a written Crestview Roofing quote in Thousand Oaks. A standard architectural shingle tear-off on a 2,000 square foot single-story runs $18,000 to $24,000. Decking replacement, if needed, adds $2,800 to $5,500 for a partial re-sheet and $6,000 to $11,000 for a full re-deck. Flat roof sections add $1,200 to $3,000. Skylight replacement, if you have them, runs $800 to $2,400 per unit. Permit fees and haul-away are line items, never buried. Every quote is free, written, and honored as the contract price. Call (325) 246-5075 to book your roof walk-through with Dylan Pace or a Thousand Oaks project lead.
We Also Serve Cities Near Thousand Oaks
Our Thousand Oaks and Conejo Valley crews cover homes in Westlake Village, Oak Park, Newbury Park, and Agoura Hills as well. Ask about scheduling when you call, or mention your development when we walk the roof together. We’re a Los Angeles-coordinated team with crews stationed locally across the area.
Serving Thousand Oaks, CA – Our Local Coverage Area
We’re based in the Thousand Oaks 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 Thousand Oaks
Yes. Thousand Oaks requires a building permit for a full roof replacement, and most jobs need a final inspection sign-off from the city. We pull the permit, schedule the inspection, and show you the line item on your written quote. Some overlay jobs (where shingles go over existing shingles) have different rules, but we rarely recommend overlays because they hide decking problems.
Line up the following line items side by side: decking allowance, underlayment type, shingle brand and line, flashing scope, ventilation, permit fees, haul-away, and warranty terms. The roofer who writes “decking TBD” is the one who hits you with a change order on day two. Ask both roofers to walk the decking with you. Call (325) 246-5075 and we’ll give you a written quote you can hold against anyone else’s.
We install GAF, CertainTeed, and Owens Corning shingles, and we can match most existing profiles if you’re repairing half a roof. For new full replacements we recommend architectural shingles from any of these three, and we’ll explain the price and warranty differences before you pick.
A standard single-story home takes four to seven working days from tear-off to final inspection. Decking replacement extends that by one to two days. Weather delays are the biggest wildcard in the Conejo Valley, especially winter rain, so we build a small buffer into the schedule and tell you upfront what day the crew starts and what day we expect to finish.
It can help. We replaced a 30-year-old three-tab roof on a 1968 ranch in the Wildwood area where the old dry decking was delaminating. We re-laid 7/16-inch OSB, ran ice and water shield in the valleys and along the eaves, then set GAF Timberline architectural shingles with new drip edge and a ridge vent. The homeowner had a signed-off final inspection and a 50-year system warranty inside four days, and used the documentation to support their insurance review. We’ll provide the paperwork you need for your carrier. Call (325) 246-5075 for a free roof walk-through and written quote.
Written by Dylan Pace, Owner at Crestview Roofing, serving Thousand Oaks and the Conejo Valley with written quotes and the 365-Day Done Right Promise.






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