Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
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Before
AfterFast, Reliable Roof Replacement Across San Leandro
Roof replacement in San Leandro typically runs $11,500-$21,000 for a standard asphalt shingle tear-off on a postwar ranch, with architectural shingles adding roughly $1,800-$3,400 to the total. The quote moves because of what we find once the old roof comes off: stacked shingle layers, decking rot from the marine layer, and rusted flashing. We price the unknowns in writing before we start, and we walk you through the allowance process so nothing changes without your signature. Greg Holloway leads our San Leandro crews, and you can reach us at (945) 303-9821.
Why Tilehurst Roofing Is San Leandro’s Preferred Roof Replacement Company
We answer the phone. That sounds basic, but if you’ve already been burned by a no-show roofer, you know it’s the first test. A live person picks up 24/7, including evenings and weekends, and you get a written price before any work starts. Not a ballpark. A line-item number you can hold us to.
Our crews know San Leandro’s housing stock because they work on it every week. The ranch homes off Bancroft Avenue, the minimal traditional bungalows near Estudillo Estates, the flat-roof additions on Davis Street commercial buildings. Each one ages differently, and we quote accordingly. When you call (945) 303-9821, we schedule a roof inspection that fits your window, not ours.
Every Tilehurst Roofing job carries the 365-Day Done Right Promise. If something isn’t right, we make it right for a full year after we finish. That guarantee is written and handed to you before the crew leaves, not mailed later.
Reroofing in San Leandro
Reroofing in San Leandro almost always means a full tear-off, not an overlay. The city’s postwar ranch stock, especially in Washington Manor, was built between 1953 and 1960. Many of those homes got a second roof layered over the first during the 1980s and 90s. Those second roofs are now failing on the same schedule, so when we open them up, two or three stacked shingle layers are common. That’s dead load the original 3:12 framing was never designed to carry, and local code requires us to remove it all before installing anything new.
A full reroof on a typical San Leandro ranch runs $10,500-$19,500, depending on square footage, pitch, and what we find underneath.
Full Tear-Off vs. Overlay
Most San Leandro homes cannot legally take another overlay. Once you hit two layers, code says stop. We tear down to the decking, inspect the framing, and build back with a clean substrate. It costs more, but it’s the only way to see what the marine layer has been doing to the wood.
Decking Inspection and Replacement
When the old roof comes off, we walk the decking with you before anything gets covered. If we find rot, we price the repair per sheet and put that number in writing before we touch the framing. No surprises billed after the fact.
Flat Roof Replacement in San Leandro
Flat roof replacement in San Leandro covers a different world than the shingle ranches: bungalow additions, carports, and the flat-roof commercial stock along Davis Street and the I-880 frontage. These roofs fail differently. Ponding water, failed seams on old built-up roofs, and TPO membranes that have baked in the East Bay sun. If your flat roof is over a part of the house you actually live in, a leak here shows up on the ceiling fast.
Flat roof replacement in San Leandro typically runs $9,000-$16,500 for a single-family residential section, stripping to the deck and applying a new TPO or modified bitumen membrane.
TPO Membranes
For San Leandro’s climate, we often recommend TPO. It’s a white single-ply membrane that reflects heat, welds at the seams, and handles the salt air better than older asphalt-based systems. We stock TPO locally for fast turnaround on San Leandro jobs.
Built-Up Roof Replacement
Older San Leandro additions and commercial buildings still carry built-up roofs: layers of felt and asphalt with a gravel cap. When those go, we remove the old system to the deck, repair any water-damaged sections, and install the membrane that matches the building’s slope and use.
Trusted Brands We Service in San Leandro
We install materials from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. You choose the product that fits your home and your budget, not whatever happens to be in the truck. Most San Leandro ranch owners pick GAF architectural shingles for the look and the wind rating. CertainTeed Landmark is a close second. Owens Corning Duration gets called for when homeowners want the SureNail strip. We stock common colors locally in the San Leandro market so lead times stay short.
Common Roof Replacement Problems We See in San Leandro Homes
- Stacked shingle layers from 1980s-90s re-roofs. Washington Manor and other mid-century tracts got overlaid roofs decades ago. Two or three layers are common, and they must be torn off before new roofing goes on. That’s a code issue and a weight issue on 3:12 framing.
- Marine-layer granule loss on west- and north-facing slopes. Fog off San Francisco Bay keeps roofs wet longer than homeowners expect. Granules wash into gutters. Algae streaks form. The roof looks fine from the street but is at end-of-life on the shaded slopes.
- Corroded fasteners and rusted drip edge. Salt-laden air from the bay eats galvanized fasteners and flashing faster than inland East Bay cities. We regularly replace rusted drip edge and corroded connectors that would have lasted another decade in Pleasanton or Livermore.
- Rot at the eaves from the San Leandro Hills moisture trap. The hills east of town hold fog and morning moisture over the flatlands. West-facing eaves stay damp. By the time a leak reaches the ceiling, the decking at the eave has been softening for years.
Pricing for Roof Replacement in San Leandro, CA
Here’s what you can expect in San Leandro’s market. A standard tear-off and asphalt shingle replacement on a 1,200-1,600 square foot ranch runs $11,500-$16,800. Architectural shingles from GAF or CertainTeed push that to $13,300-$21,000 depending on the profile you pick. Flat roof sections run $9,000-$16,500. A full decking replacement, if rot is widespread, adds $2,800-$6,000. Washington Manor homes with triple shingle layers cost more to tear off than a single-layer home in Oakland. The labor is heavier and disposal fees climb. Call (945) 303-9821 for a free estimate. You get a written price before any work starts.
We Also Serve Cities Near San Leandro
Our Roof Replacement team covers San Leandro and the surrounding East Bay, including San Lorenzo, Castro Valley, Oakland, and Alameda. If you’re in one of those cities and need a roof inspection, the process is the same: San Leandro crews schedule the visit, you get a written price, and we handle the job from tear-off to final cleanup.
Key Takeaways
- Roof replacement in San Leandro runs $11,500-$21,000 for most asphalt shingle ranch homes.
- Washington Manor homes routinely carry two or three stacked shingle layers from 1980s-90s re-roofs. Full tear-off is required.
- The marine layer and salt air shorten shingle life and corrode fasteners faster than inland East Bay cities.
- Every Tilehurst Roofing job comes with a written price before work starts and the 365-Day Done Right Promise.
- Call (945) 303-9821 for a free roof inspection and line-item estimate.
Serving San Leandro, CA - Our Local Coverage Area
We’re based in the San Leandro 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 San Leandro
Most Washington Manor homes were built between 1953 and 1960 and re-roofed once in the 1980s or 90s. That second layer is now failing. Local code allows a maximum of two shingle layers, so when a third was added or when two are already failing, a full tear-off is required before new roofing can go on. We also find that stacked layers hide soft decking and add dead weight to 3:12 framing that was never designed for it. Call (945) 303-9821 for an inspection and a written tear-off price.
Yes. San Leandro sits at the western edge of the East Bay flatlands, directly adjacent to the bay. Persistent fog and salt-laden air cause algae growth, accelerated granule loss, and fastener corrosion, especially on north- and west-facing slopes. The San Leandro Hills east of town trap moisture over the flatlands, keeping roofs wet longer into the morning than in Pleasanton or Livermore. A roof that might last 25 years inland can hit end-of-life at 18-20 years here. Call (945) 303-9821 to have your roof assessed against San Leandro’s actual conditions.
We price it in writing before we touch the framing. Our process is simple: tear off the old roof, walk the decking with you, and identify every sheet that needs replacement. We give you a per-sheet price and a written allowance estimate before work starts, so you know the range. If we find rot, you approve the exact dollar figure in writing before we cut anything. No surprises at the end. Call (945) 303-9821 to discuss how we handle decking allowances on San Leandro homes.
We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For San Leandro’s 3:12 and 4:12 ranch pitches, GAF architectural shingles and CertainTeed Landmark are the most common picks for their wind ratings and algae resistance. Flat roof sections get TPO or modified bitumen depending on the use. You choose the product. We stock common colors locally so San Leandro jobs don’t wait on shipping. Call (945) 303-9821 to see material options and pricing side by side.
Line them up against four things: decking, underlayment, flashing, and warranty. Does the bid include a tear-off to the deck or an overlay? What underlayment is specified? Does it cover drip edge and flashing replacement or leave the old metal in place? What’s the workmanship warranty, and is it in writing? We give you a line-item bid that spells out each piece, including a written allowance for decking, so you can compare it honestly. Call (945) 303-9821 and we’ll walk you through your existing bid line by line.
What a San Leandro Roof Replacement Actually Turns Up
Opening up a 1950s San Leandro ranch is not like opening up a newer home. You find outdated things. The roof decking may be 1×6 plank with gaps that never met code. The drip edge is rusted through at the eaves. The valleys were flashed with whatever was on the truck in 1987. And in Washington Manor especially, you find two or three shingle layers stacked on framing that was never meant to carry that load.
This is why our process starts with inspection, not a bid. One of our crews tore off a Washington Manor ranch off Marina Boulevard and found three shingle layers plus rot in the decking at the west-facing eave. A classic marine-layer result: granule loss and fastener corrosion had gone unnoticed for years. We replaced the compromised decking, laid ice and water shield through the valleys, and set GAF architectural shingles with a starter strip and ridge vent, pricing the decking repair in writing before we touched the framing. That’s how we handle every San Leandro roof: what we find, you approve, in writing, before we proceed.
The single biggest reason a roof replacement quote moves in San Leandro is the tear-off reality. Stacked 1980s-90s shingle layers, marine-layer granule loss on west- and north-facing slopes, salt-corroded flashing. Our estimate includes a written allowance for decking and framing repairs because we know what this housing stock looks like under the shingles. You’ll never pay for a change order you didn’t approve.
Schedule Your Free Roof Replacement Estimate in San Leandro
If your San Leandro roof is approaching twenty years old, don’t wait for a ceiling stain. Greg Holloway and our San Leandro crews inspect roofs every week across Washington Manor, Estudillo Estates, and the flatlands. We’ll climb the roof, document what we find, and hand you a written line-item price before any work starts. Every job carries the 365-Day Done Right Promise and a written guarantee you receive before the crew leaves. Call (945) 303-9821 today to schedule your free estimate. A live person answers, day or night.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving San Leandro and the East Bay.