Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Installation Across Antioch
A new roof over an Antioch home usually runs between $11,500 and $24,800 for a typical production tract house, with larger or steeper homes going higher. That’s the honest range before permits, decking surprises, or optional upgrades like a high-wind nailing pattern. Mercer Roofing has been installing roofs across Antioch long enough to know exactly what the Delta breeze does to a west-facing slope, and we quote accordingly. Call (743) 200-8347 for a written estimate, and we’ll send the tech’s name and photo before anyone rings your doorbell.
Why Mercer Roofing Is Antioch’s Preferred Roof Installation Company
Antioch homeowners have a specific problem, and it’s not just shingles. It’s the moment a stranger shows up at the door and asks to walk your roof. We solved that problem. Every Mercer technician is background-checked and identity-verified under the Threshold Verified standard, and before your appointment we send the name and photo of the person coming. When they arrive, they badge in with a photo ID. You know who’s on your property before they set foot on it.
Roof installation in Antioch comes with local quirks that a regional roof company won’t catch. We know the tract homes off James Donlon Boulevard and the older ranch stock in west Antioch. We know which slopes the Delta breeze beats on, and we write quotes that account for it in writing, before a single nail goes in. Our Roof Installation team has been working these neighborhoods for years, and we stock shingle brands including GAF, Owens Corning, and Tamko locally for Antioch jobs, so supply chain holds don’t stretch your timeline.
Every project starts with a written price. No work begins without it, and that number doesn’t move unless we both sign a change order. It’s the way Grant Whitlock has run Mercer Roofing since 2000, and it’s the only way we’d do an Antioch roof install. Our 365-Day Done Right Promise covers every installation: if something isn’t right within a year, we make it right.
TPO Roofing Installation in Antioch
TPO roofing installation in Antioch is most common on the flat or low-slope additions, porches, and older ranch homes that populate the city’s west side. TPO is a single-ply thermoplastic membrane we heat-weld at the seams to form a watertight, reflective surface. It handles Antioch’s 100°F+ summer heat better than many materials because its light color reflects UV instead of absorbing it, which helps those flat roofs last. TPO installation for a typical Antioch addition or patio cover runs $7,500 to $14,200, depending on square footage and how much of the old roof has to come off.
When TPO Makes Sense
If you own a 1950s – 1970s ranch home in west Antioch, you may have an aged built-up or composition flat roof that was deferred-maintained through the post-2008 foreclosure lull. TPO is often the right replacement: it’s lighter than built-up gravel systems, easier to maintain, and reflects Antioch’s intense inland sun. We’ll inspect the decking under the old membrane before quoting, because years of sun and deferred care often hide rotted sheathing.
What the Installation Includes
We strip the old roof to decking, replace any soft plywood, install a new underlayment or cover board, and weld the TPO membrane with hot air at every seam and penetration. Around pipes, vents, and parapet walls we add preformed TPO flashings so those weak points are never weak. The result is one continuous membrane that sheds water off every flat plane.
Shingle Roof in Antioch
A shingle roof in Antioch is the workhorse roof for the thousands of 1990s – 2000s tract homes across the eastern and hillside neighborhoods; our crews install architectural shingles from GAF, Owens Corning, and Tamko on nearly all of them, because those shingles hold up to Delta-breeze winds far better than the original 3-tab shingles. Shingle roof installation in Antioch typically runs $11,500 to $22,400 for a standard two-story tract home. On a larger hillside home with a steeper or more cut-up roof, expect $20,000 to $29,000. We always quote replaced decking separately, so you know the walk-away number before we start.
Common Shingle Work We Do
Most of the shingle roofs we replace in Antioch are full tear-offs, because the homes were built in waves and the old roofs are reaching end-of-life together. We strip to decking, replace any soft sheathing, lay ice and water shield in valleys and along eaves, then run synthetic underlayment with new drip edge. New architectural shingles go on to a six-nail high-wind pattern on every slope, which matters here.
Why Nail Count Matters in Antioch
The Delta breeze through the Carquinez Strait puts real load on west- and southwest-facing planes. Many of the original 2000s tract-home roofs were nailed at minimum four nails per shingle, and those windward slopes are where we see lifted tabs and granule loss. We quote and install six-nail patterns by default in Antioch, not as an upsell. It’s simply what this city’s wind exposure requires.
Trusted Brands We Service in Antioch
Mercer Roofing installs and services manufacturer-recognized shingle brands including GAF, Owens Corning, Tamko, and IKO, plus TPO membrane systems from leading manufacturers. We stock common materials for Antioch jobs locally in the Bay Area, which keeps replacement and repair timelines short. If your home has an existing GAF or Owens Corning roof, we’ll match the product line and color family so the new roof can handle the Delta sun the same way the original one should have. We don’t push one brand; we quote the shingle that fits your slope, exposure, and budget, and put that choice in writing.
Common Roof Installation Problems We See in Antioch Homes
- Delta-breeze exposure split. On 1998 – 2007 tract homes, west- and southwest-facing planes lose granules and lift tabs years before the north-facing side of the same roof, because the Carquinez Strait wind hits them hardest. Coastal Bay Area cities 30 miles west simply don’t see this failure pattern.
- Minimum-nail original installations. Builders in the 2000s often specified four nails per shingle. Under Antioch’s heat and wind, that’s not enough, and the windward slopes are the first to show it. We re-nail or fully replace with high-wind patterns.
- End-of-life roofs on the same clock. Those production tract homes were built in concentrated waves, so the whole neighborhood’s roofs often reach 25 – 30 years around the same time. Patching one slope while other valleys and flashing seams are aging means more leaks later.
- Deferred-maintenance ranch homes in west Antioch. Many 1950s – 1970s ranch homes carried deferred flat or composition roofs through the post-2008 years. We often find rotted decking and failed underlayment only visible after tear-off, which is exactly why we quote decking replacement before starting.
Pricing for Roof Installation in Antioch, CA
Roof installation in Antioch costs more than a coastal Bay Area roof for two local reasons: the inland Delta sun and wind require high-wind nailing and UV-rated shingles, and tear-off labor is heavier because many 2000s tract homes have cut-up roofs with multiple valleys. A typical shingle roof for a 2,000-square-foot tract home runs $12,000 to $22,000. TPO on a flat addition runs $7,500 to $14,200. Decking replacement, when needed, adds $2.50 to $4.00 per square foot, and we always quote it separately so you’re not surprised mid-tear. We price by the square, written line items, so you can compare bids apples-to-apples. Call (743) 200-8347 for a free, written roof installation estimate in Antioch.
We Also Serve Cities Near Antioch
Beyond Antioch, Mercer Roofing installs roofs for homeowners throughout eastern Contra Costa County. We regularly quote and roof homes in Oakley, Pittsburg, Clayton, and Brentwood, where the same Delta breeze and inland heat patterns apply. If you’re in one of those cities and need a full Roof Installation team that understands the local wind and UV exposure, call us at (743) 200-8347.
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 Installation in Antioch
The Delta breeze through the Carquinez Strait pushes steady afternoon wind against west- and southwest-facing slopes, and on 2000s tract homes originally nailed at four nails per shingle, those windward planes lose granules and lift tabs years before the north-facing side of the same roof. It’s a split-roof condition we see constantly in Antioch. We inspect both slopes separately and quote the fix that addresses the windward exposure, not just the visible damage. Call (743) 200-8347 and we’ll tell you what’s happening on your roof.
Yes. Every Mercer Roofing quote is written in roofing squares (one square equals 100 square feet) with line items for tear-off, underlayment, shingles, flashing, and any decking replacement. That means you can compare our number to another Antioch roofer’s number line by line, not just guess at the bottom line. We also include the high-wind nailing upgrade in the base quote, where some contractors charge it as an add-on.
Yes, if it’s installed correctly. A high-wind-rated shingle installed with a six-nail pattern and proper starter strip will hold up to the Delta breeze far better than a four-nail original. The rating matters less than the fastening; we set high-wind rated shingles with six nails per shingle and check that every tab is sealed to activate the wind warranty. We then put the installation workmanship in writing, covered by our 365-Day Done Right Promise.
The old roof comes off to the decking, we replace any soft sheathing, then install ice and water shield in valleys and along eaves, synthetic underlayment, and new architectural shingles with upgraded flashing at every pipe and penetration. Most of these roofs are on the same clock, so we inspect all slopes, valleys, and flashing seams before quoting. That prevents spending money on one slope while another is two seasons from leaking.
Yes, we install TPO membrane systems on those older flat and low-slope ranch additions across west Antioch. We strip the old built-up roof to decking, replace rotted sheathing if needed, and weld a continuous TPO membrane that handles Antioch’s 100°F+ summers. These roofs usually run $7,500 to $14,200 depending on square footage and condition. Call (743) 200-8347 for a written estimate.
If you live in Antioch and you’re watching the southwest slope of your roof lose granules while the north side still looks fine, it’s time for a real quote, not a door-knock pitch. Call Mercer Roofing at (743) 200-8347 and we’ll send a background-checked, photo-badged technician with a written price before any work begins. We’ll explain the Delta-breeze exposure split, show you what’s happening on your roof, and leave you a line-item estimate you can hold us to.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Antioch, CA since 2000.