Asphalt Shingle Roof Replacement cost: Castro Valley vs San Francisco (2026)
There's essentially no price gap here: asphalt shingle roof replacement runs close to $10,950 in both Castro Valley and San Francisco in 2026.
Castro Valley CA
Typically around $10,950
San Francisco CA
Typically around $10,950
Castro Valley vs San Francisco: full breakdown
| Factor | Castro Valley | San Francisco |
|---|---|---|
| Typical 2026 cost | $10,950 | $10,950 |
| Estimated range | $7,150–$14,750 | $7,150–$14,750 |
| Labor index (vs US) | ×1.2 | ×1.2 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | $325 | $325 |
| Labor share | $6,550 | $6,550 |
| Materials/equipment | $4,400 | $4,400 |
These are 2026 planning figures for asphalt shingle roof replacement, localized to each city — not formal quotes.
No real cost edge either way
This is a statistical tie on asphalt shingle roof replacement cost, so let contractor reputation and project timing decide, not geography.
Asphalt shingle roof replacement by type: Castro Valley vs San Francisco
Each asphalt shingle roof replacement option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Castro Valley | San Francisco |
|---|---|---|
| 3-tab shingles | $7,150–$12,350 | $7,150–$12,350 |
| Architectural shingles | $8,750–$14,750 | $8,750–$14,750 |
These are 2026 planning figures for asphalt shingle roof replacement, localized to each city — not formal quotes.
Asphalt shingle roof replacement by roof size: Castro Valley vs San Francisco
Roofing is priced per 'square' (100 sq ft of roof). A roof is bigger than the home's footprint because of pitch and overhangs — a 2,000 sq ft home often has a 2,200–2,600 sq ft roof. Asphalt runs about $3–$5 per sq ft installed.
| Size | Castro Valley | San Francisco |
|---|---|---|
| 1,000 sq ft (10 squares) | $4,900–$8,750 | $4,900–$8,750 |
| 1,500 sq ft (15 squares) | $6,350–$11,750 | $6,350–$11,750 |
| 2,000 sq ft (20 squares) | $7,150–$14,750 | $7,150–$14,750 |
| 2,500 sq ft (25 squares) | $9,350–$17,150 | $9,350–$17,150 |
| 3,000 sq ft (30 squares) | $11,150–$20,750 | $11,150–$20,750 |
| 3,500+ sq ft (35 squares) | $12,950–$24,350 | $12,950–$24,350 |
Asphalt shingle roof replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
What roofing pros earn in each metro
Labor is about 60% of a asphalt shingle roof replacement bill, so local wages drive most of the gap. These are real metro hourly wages for skilled installers (BLS OEWS), not estimates.
San Francisco-Oakland-Fremont metro · about 34% above the US average installer wage.
San Francisco-Oakland-Fremont metro · about 34% above the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for asphalt shingle roof replacement in either city
Storm season pushes demand — and prices — up through summer, since shingles need warm, dry weather to bond correctly. Roofers with open winter calendars will often deal to fill a spring slot.
Where does a smart roofing budget go in 2026?
Tear-off vs. overlay, shingle tier and what's hidden under the deck decide the real number. Our editors on the trade-offs.
The value case
Architectural shingles hit the sweet spot — far more durable than 3-tab for a modest premium, and far cheaper than metal or tile. For most homes they're the right default.
The do-it-right case
Pay for a full tear-off and quality underlayment, flashing and ventilation. An overlay saves money today but traps heat, voids some warranties and costs more at the next replacement.
The risk case
Budget for the unknown: rotten decking found at tear-off is the most common surprise. Get the per-sheet repair rate in writing up front so a "cheap" bid doesn't balloon mid-job.
Insist on tear-off over overlay, get the deck-repair rate in writing before work starts, and lean toward architectural shingles. Skipping any of the three tends to cost more later than it saves now.
Castro Valley vs San Francisco
Is asphalt shingle roof replacement cheaper in Castro Valley or San Francisco?
Not really — both cities land at almost the same number for asphalt shingle roof replacement, around $10,950 each.
Why does asphalt shingle roof replacement cost more in San Francisco than Castro Valley?
It comes down to labor: San Francisco indexes at 1.2 against Castro Valley's 1.2. The mixed-vs-mixed climate difference adds to the gap.
How much is asphalt shingle roof replacement in Castro Valley, CA?
Castro Valley homeowners can expect $7,150 to $14,750 for asphalt shingle roof replacement in 2026, with $10,950 the typical number.
Do roofing pros really charge more in one city?
They do, and the BLS wage data confirms it: installers earn about $41.6/hr around San Francisco-Oakland-Fremont versus $41.6/hr near San Francisco-Oakland-Fremont. With labor making up about 60% of a asphalt shingle roof replacement job, that difference carries straight through to the final price.
When is the cheapest time to buy asphalt shingle roof replacement — and does it differ by city?
No, the seasonal pattern is the same in Castro Valley and San Francisco: book during Late spring to early fall (dry, 45–85°F) for about 5–10% in savings. Mid-winter and the post-storm rush is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on asphalt shingle roof replacement cost?
No — the cost is essentially identical between Castro Valley and San Francisco. Base the decision on the things that actually vary: contractor reputation, scope, equipment tier and timing.
Compare asphalt shingle roof replacement in other cities
Updated June 2026 · By Serhat Özçelik