Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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After
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Before
AfterFast, Reliable Roof Replacement Across Antioch
Roof replacement in Antioch runs $9,500 to $18,500 for a typical 1,800-square-foot single-story home, with most jobs landing between $12,000 and $15,000 depending on decking condition, tear-off layers, and the shingle you choose. That’s the honest range in this market, not a national average.
Our crews are on Antioch rooftops every week, from the older three-bedroom ranches off Gentrytown Drive to the bigger two-story builds near Lone Tree Way. If you’re staring at a roof that’s hit the twenty-year mark, or you found granules in your gutter after the last Delta wind storm, call us at (325) 246-5075. We’ll scope it properly, quote a written price before anything starts, and show you photo proof of every step before and after the job.
Why Crestview Roofing Is Antioch’s Preferred Roof Replacement Company
Antioch homeowners keep calling us back for one reason that has nothing to do with shingles: the number on our written estimate is the number on the final invoice. Dylan Pace, who runs Crestview, put that in writing years ago as part of The Relay Visibility Guarantee, and we’ve held to it on every job, including full tear-offs, since founded in 2000.
We service Antioch neighborhoods with crews who know the local housing stock, the permit office routine, and the Delta wind patterns that eat roofs on the north-facing slopes. Our Roof Replacement teams show up in uniforms with background checks on file, and you get a live, trackable arrival time before we pull onto your street. No four-hour windows. No guessing who’s at the door.
Every replacement carries the 365-Day Done Right Promise: if anything we did fails within a year, we come back and fix it at no charge. In writing, on every job, included. If a repair fails, the second visit is free too. No negotiation, no runaround.
Flat Roof Replacement in Antioch
Flat Roof Replacement in Antioch is a different animal than a pitched shingle job, and we treat it that way. A flat roof replacement on a typical Antioch single-story addition, patio cover, or detached garage runs $7,500 to $13,500, with larger commercial-style builds pushing higher. The work means stripping the old membrane or rolled roofing, checking the decking underneath (flat roofs hide water damage faster than sloped ones), then installing new underlayment, a rated membrane system, and proper flashing at every wall junction and penetration.
Why Flat Roofs Fail Here
Flat roofs in Antioch take a beating from the Delta breeze pushing water sideways against flashing, plus the summer heat baking the membrane until seams lift. When we open up a flat roof on a home near the waterfront, ponding water damage is common, and that drives the decking replacement portion of the price. You need a roofer who checks drainage slope as part of the job, not one who just rolls new material over the old problem.
What To Ask Before Repricing
Ask whether the quote includes membrane type and thickness, flashing replacement at the parapet walls, and a drainage check. If the answer is vague on any of those, keep looking. We write all three into every flat roof estimate before you sign anything.
Roof Replacement Contractor in Antioch
A Roof Replacement Contractor in Antioch should be able to explain wind uplift ratings as easily as material pricing, because this city sits in a high-wind corridor where the Delta breeze funnels through the San Joaquin River gap south of town. That’s not roofer marketing talk, it’s physics. Wind peels shingles and ridge caps off Antioch roofs when the nailing pattern and starter strip aren’t installed to the shingle’s rated spec, and a full tear-off is the moment when that gets corrected properly.
The Nailing Pattern Nobody Sees
Architectural shingles from GAF, Atlas, and Tamko are rated up to 130 mph wind resistance, but only when the installer uses the manufacturer’s exact nailing pattern, the right nail count per shingle, and a starter strip laid to spec. Skip that and you’ve bought a 130 mph shingle that fails at 70. We install to the rating, every time, and we document it with photos before the underlayment goes down.
Concealed Decking Is The Real Variable
Antioch’s older three-tab-over-three-tab tear-offs nearly always hide rotted decking at valleys and failed flashing around vents and chimneys. The true scope isn’t known until the old roof is off, which is why our written estimate clearly separates “known work” from “potential decking replacement at market rate” before we start. You’ll never be surprised by a number we didn’t flag first.
Trusted Brands We Service in Antioch
We install and repair with manufacturer-backed materials from GAF, CertainTeed, Owens Corning, IKO, and Atlas. For Antioch homeowners, that matters in two ways: first, you’re never locked into one brand’s price point, and second, we can match the shingle profile already on your roof if you’re doing a partial replacement. When we quote a GAF Timberline HDZ roof, that’s the exact shingle that goes on, backed by the manufacturer’s warranty and our 365-Day Done Right Promise on workmanship.
Common Roof Replacement Problems We See in Antioch Homes
- Delta wind uplift at ridge caps and eaves. The same breeze that makes summer evenings pleasant forces shingles up at the nail line when the fastening pattern is short by even one nail per shingle. We see it most on north- and east-facing slopes near A Street and Hillcrest.
- Rotted decking hidden under multiple old layers. Three-tab-over-three-tab is common in Antioch’s 1960s-80s subdivisions around Gentrytown and the Mira Vista Hills, and the layers trap moisture against plywood that’s been failing for years. You won’t know until the tear-off reveals it.
- Failed flashing at valleys and penetrations. Antioch’s summer heat expands metal flashing, and winter rain contracts it. Over twenty years, that cycle splits old flashing at the chimney and plumbing stack joints. New flashing on every penetration is standard on our replacements.
- Underlayment degradation from heat and rain cycling. Skipping ice-and-water shield at eaves and in valleys on an Antioch roof invites leaks within three to five seasons. We flag underlayment condition in every inspection photo set.
Pricing for Roof Replacement in Antioch, CA
Here’s what a typical Antioch roof replacement costs, per square in our current market:
- Tear-off and disposal: $80 – $110 per square
- Decking replacement (when needed): $65 – $95 per sheet
- Architectural shingle install (materials + labor): $350 – $550 per square
- Underlayment, ice and water shield, drip edge, flashing: $60 – $90 per square
- Ridge vent and penetration re-flashing: $400 – $900 total
A 24-square single-story near the Antioch Marina that needs partial decking replacement lands around $12,500 to $15,500. A 40-square two-story with full decking replacement can run past $20,000. The decking condition is the variable nobody can see until the old roof comes off, which is why our written estimate separates it as a line item before work starts. Call (325) 246-5075 for a free estimate on your specific roof.
We Also Serve Cities Near Antioch
Beyond Antioch, our crews cover Oakley, Pittsburg, Clayton, and Brentwood. The Delta wind patterns shift across the county line, but the pricing structure and written-guarantee standard follow us everywhere.
Serving Antioch, CA – Our Local Coverage Area
We’re based in the Antioch 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 Antioch
Line up the line items, not the bottom line. Compare tear-off depth (one layer vs. three), decking replacement allowance per sheet, underlayment type (synthetic vs. felt), ice-and-water shield coverage at eaves and valleys, and whether new flashing and drip edge are included. Two quotes that look $4,000 apart often gloss over these differences. Call (325) 246-5075 and we’ll walk you through any competitor’s bid next to ours.
Yes. The City of Antioch requires a building permit for roof replacement, including tear-off and re-roof. A proper contractor pulls the permit, schedules the required inspection, and handles the paperwork. We pull permits on every replacement in Antioch and pass the final inspection before we call the job done.
Most single-story Antioch roof replacements take 2 to 4 days from tear-off to final inspection, depending on decking surprises and the size of the roof. Two-story homes and complex valleys push toward 4 to 6 days. Weather delays in winter rain season add time, but the permit inspection is the final gate. Call (325) 246-5075 for a realistic timeline on your specific roof.
Look for an architectural shingle with a wind rating of at least 110 mph, preferably 130 mph, and confirm the installer follows the manufacturer’s nailing pattern exactly. The rating means nothing if the shingle isn’t fastened to spec. We install GAF, Atlas, and Tamko architectural shingles rated up to 130 mph and document the nailing pattern with photos before underlayment goes down.
It can, but only for one reason we flagged upfront: decking replacement. Our written estimate identifies every damage-prone area before work begins, and we photograph the decking the moment the old shingles come off. If we find rot we didn’t see, we show you the photo and the per-sheet price from your original estimate before touching it. The price on your estimate is the price on your invoice, every time.
Written by Dylan Pace, Owner at Crestview Roofing, part of the Relay Home Co. family. Serving Antioch and surrounding East Bay communities with written prices, photo documentation, and the 365-Day Done Right Promise on every job.