Roof Repair
Same-Day Leak Fixes in East Bay

Professional Roof Repair in the East Bay

East Bay Roofers is the East Bay's licensed roofing contractor that homeowners and property managers across 38 cities call for professional roof repair. Since 1988, we've provided leak diagnosis and durable repair for homes and businesses in Walnut Creek and across the entire East Bay. Here's what that looks like in practice:

What Roof Repair Actually Involves

A lot of homeowners think "roof repair" means slapping a new shingle on and calling it done.

Real repair work is diagnostic first, mechanical second. When we show up for a leak call, the first 20 minutes are spent figuring out what's actually failing. The shingle you can see from the driveway is rarely the problem. Our repair scope covers everything short of a full re-roof: isolated shingle replacement, ridge cap repair, valley rebuilds, chimney flashing replacement, skylight reseals on VELUX and Fakro units, vent boot swaps, drip edge repair, soffit and fascia patch-ins, and decking repair where a small section of plywood has rotted. If the fix needs more than about two squares of new material or any structural framing, we shift the conversation toward partial or full replacement because the math changes. We carry GAF Timberline HDZ and UHDZ, CertainTeed Landmark and Presidential, Owens Corning Duration, and Malarkey Vista AR shingles on our trucks in the most common colors. Roughly 70% of East Bay homes use one of those four lines, so we can usually match what's on your roof without a special order. For tile work, we keep a stock of common Boral and Eagle concrete profiles and can source clay replacements within a day or two.

When You Actually Need a Repair

Here's the honest list of things that mean "call a roofer this week" versus "it can wait"

• Active interior leak. Obvious one.

Water on drywall is already past the point of cheap fix.

• Flashing failure. The silvery metal around your chimney has pulled away, rusted through, or separated from the shingles. Chimney flashing is the number one leak source we see in Concord, Pleasant Hill, and Martinez.
• Wind-lifted shingles. After a Diablo wind event, walk your yard. If you find shingle tabs on the lawn, you've got exposed nails up there and rain will find them.
• Valley wear. Dark streaks or bare spots running down a roof valley mean the granules are gone and the mat is next.
• Skylight seal failure. Water staining the inside of the skylight well usually means the flashing kit has failed, not the glass.
• Vent boot cracking. The rubber around plumbing vent pipes UV-cracks at about the 10-year mark. Cheap to fix, expensive to ignore.
• Ceiling stains after storms. Even if the stain dries out, water got in somewhere. It'll come back. We see the same patterns weekly. Wind lifts tabs on the windward slopes in Walnut Creek and Orinda. Chimney flashings fail in the older Lafayette and Moraga homes with brick chimneys built in the 60s and 70s. Skylight seals give up around year 15 on VELUX units installed in the Pleasanton tract builds from the late 90s. If any of those match your house, you're probably due.

Our Repair Process

1. Free inspection. We inspect the whole roof, not just the reported problem.

We've caught a second active leak on the opposite slope more than once because the homeowner only knew about the one over the kitchen. 2. Written estimate. Line-item scope of work with material, labor, and warranty spelled out. No verbal guesses. 3. Scheduled repair. We show up with the right material on the truck. Most repairs wrap in one visit. 4. Water test. Before we leave, we run a hose over the repair for 15 minutes and check the attic or interior for any sign of leakage. If it shows up, we're not done. 5. Documentation. You get before, during, and after photos plus a written workmanship warranty the same day.

Materials and Brands We Use

We're factory-trained, which means we install to the tighter manufacturer spec and your repairs are covered under the material warranty when applicable.

Here's what ends up on our repair trucks: - GAF Timberline HDZ and UHDZ — the workhorse architectural shingle on most Contra Costa County repairs. LayerLock technology and the StainGuard Plus algae warranty make it our default.

• CertainTeed Landmark and Presidential — Landmark for everyday replacement, Presidential for the luxury tract homes in Blackhawk and Danville where the original roof was a high-profile designer shingle.
• Owens Corning Duration — SureNail strip gives it excellent pull resistance, which we rely on for wind-damage repairs.
• Malarkey Vista AR — algae-resistant with a polymer-modified asphalt blend that handles the UV punishment on south-facing Concord and Antioch slopes.
• VELUX and Fakro skylight kits — we stock replacement flashing kits for the most common sizes.
• Boral, Eagle (Malibu and Capistrano), and Redland concrete tile — for the tile repair work we see constantly in the older Walnut Creek and Alamo neighborhoods.
• Henry and Geocel sealants — compatible with all the major shingle and tile lines. If your roof is an oddball color or profile, we'll tell you upfront and either special-order or give you an honest-looking match from our stock.

Code and Permit Requirements

Most repairs fall under CRC Section R105.2, which exempts work under 100 square feet (one roofing square) from the permit requirement.

That covers the vast majority of leak fixes, flashing work, and vent boot swaps. You don't need a permit, and we won't pretend you do. Anything larger triggers CRC R908 (re-roofing provisions), which means we file for a permit through whichever jurisdiction your property sits in — city of Concord, Pleasant Hill, Walnut Creek, Martinez, the unincorporated Contra Costa County portal for Alamo and Blackhawk, or Alameda County for Castro Valley and San Lorenzo. If you're in the Very High Fire Hazard Severity Zone — the hills above Orinda, Moraga, Lafayette, the Berkeley and Oakland ridgelines, and chunks of Danville and Alamo — repairs that expose more than a small area of the roof assembly fall under California Building Code Chapter 7A. That means Class A fire-rated materials, ember-resistant vent treatments, and documented compliance on the permit. We check the CAL FIRE FHSZ map for every address before we quote, so you won't get surprised halfway through the job.

When Repair Leads Somewhere Else

A roof repair call sometimes opens a conversation about roof replacement — particularly on roofs past 20 years where multiple failure points have appeared in the same season.

After storm events, we often follow an emergency repair with a formal roof inspection to document the full scope for insurance purposes. And for properties that also have flat sections, commercial roofing membrane repairs run parallel to the shingle work on the same mobilization. We also handle metal roofing repairs on standing-seam panels — a different skill set than shingle work, and one most East Bay roofing contractors don't cover.

Ready to Stop the Leak?

Call East Bay Roofers at (925) 722-4916 or request a free inspection.

We're CA license (C-39), , and rated. Family-owned, founded in 1988, and based at 2310 Bates Ave in Concord.

What Roof Repair Includes

A repair is only honest if it fixes the cause, not the symptom. We trace leaks to their source — a flashing failure at a wall or chimney, a vent boot collar that's cracked, a drip edge that's missing, or damage where the roof meets the fascia and soffit. Repairs include new flashing where it's failed, replacement of damaged sheathing when water has rotted plywood or osb, underlayment patched to match, and sealant or caulk applied at the repair seams. We also check the ridge vent for blockage while we're up there — a stopped-up vent causes more damage than the leak itself. Repair debris is swept up and hauled off; no nails left on the lawn.

Roof System Details

Beyond the visible work, every roof repair project on a roof touches the same system-level details. Valleys are flashed with corrosion-resistant metal so the heaviest water flow stays off the deck. Ice dams are addressed at the source — ice-and-water shield in the eaves and lower field plus balanced ridge vent and soffit vent airflow keeps the deck temperature even, so snowmelt doesn't refreeze at the eave and push water up under the shingles. The joist and rafter structure is checked for deflection before heavy materials go up. Gutter and downspout connections are confirmed at the eaves so the roof edge drains into the system instead of behind it — a roof and its gutters are one water-shedding assembly, and we treat them that way.

Quality & Materials Standards

Every material we install is specified to a standard, not just a price. Architectural shingles and three-tab shingle options are dimensional fiberglass-backed products with granulated mineral surfacing; standing-seam panel and corrugated panel metal roofs come in steel or aluminum with elastomeric coating options (including acrylic coating and silicone coating where the spec calls for them). TPO, EPDM, and built-up roof membranes are checked for tensile strength and coverage rate before they go up. Adhesive and roof cement are used where the membrane spec requires them, and fasteners are driven to the manufacturer's exact coverage rate — never guessed.

We also inspect for the failure modes that shorten roof life, and we're honest about what we find: blistering and blisters, buckling or warping, delamination and spalling, corrosion and erosion of metal, granulated loss, UV degradation, and deterioration that shows as flaking, cracking, or seepage at seams and eaves. Water that wicks up under a substrate rots sheathing and trusses; we fix the substrate, not the symptom. Drains, downspouts, and gutters are checked as part of the water path — a roof that drains is a roof that lasts.

Storm response is built into our process: hail damage and wind damage assessments document every dent, dislodged shingle, and lifted flashing for the adjuster. We handle claim documentation — including the deductible line items, depreciation schedules, and supplement paperwork insurance companies require — so the scope of work is approved before the crew arrives, and a tarp protects the interior until the permanent repair is scheduled. Crews work to a written scope of work with scaffold and safety harness protocols on every steep roof.