Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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Before
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Before
AfterHow Much Does Roofing Cost in San Jose?
Most San Jose homeowners pay $12,500 to $28,000 for a full asphalt shingle roof replacement on a typical 1,800 to 2,400 sq ft home, while targeted repairs usually run $450 to $1,800 depending on the slope and how far the damage has spread into the decking. A standard 30-year architectural shingle roof lands near $15,000; a standing seam metal roof on the same footprint pushes past $45,000. Those numbers include tear-off, underlayment, flashing, and disposal, because a price that doesn’t include those things isn’t a price – it’s the opening bid.
Few things move a roofing bid in San Jose faster than the age of the house. Roughly half the single-family housing stock here was built between 1950 and 1980, which means we’re often pulling off three or four layers of old shingles before we get to good decking. That’s labor and dump fees you’ll never see on a house built in 2015. We write the price on paper before any work starts, so the number you get on day one is the number you pay – no surprise line items when the crew is already on your roof.
Key Takeaways
- Full asphalt shingle replacement in San Jose: $12,500 to $28,000 for most homes.
- Roof repairs typically run $450 to $1,800; small leak fixes can be under $500.
- Metal and tile roofs cost roughly 2 to 3 times the price of architectural shingles.
- Layer count, roof pitch, and attic access drive most of the swing in price.
- Every Brennan Roofing job comes with a written price before work starts and the 365-Day Done Right Promise.
Roofing Cost Breakdown (2026)
Here’s what real line items cost in the San Jose market this year. These ranges assume a licensed, insured crew doing the work with materials from the major manufacturer lines: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. If a bid comes in well below the bottom of these ranges, ask what got left out – it’s usually the underlayment or the disposal.
| Scope of Work | Typical San Jose Price Range |
|---|---|
| Minor repair (patch, replace a few shingles, reseal a vent) | $450 – $900 |
| Leak diagnosis & flashing repair (chimney, valley, skylight) | $700 – $1,800 |
| Partial re-roof (one slope or section, up to ~600 sq ft) | $3,500 – $7,500 |
| Full tear-off & architectural asphalt shingle replacement | $12,500 – $28,000 |
| Premium designer shingle (Boral, CertainTeed Grand Manor tier) | $22,000 – $40,000 |
| Standing seam metal roof (installed) | $38,000 – $65,000+ |
| Clay or concrete tile re-roof | $30,000 – $60,000 |
| Decking replacement (per sheet of plywood, as needed) | $90 – $180 per sheet |
| New underlayment only (over sound decking) | $2,000 – $4,500 |
What pushes the number up. Old decking is the biggest one. On a 1965 Willow Glen ranch house, we routinely find skip sheathing or rotted plywood under the old shingles, and that wood has to be replaced before anything new goes down. A two-story home adds labor for staging and fall protection, which is a real cost, not padding. Complex rooflines – dormers, valleys, multiple hips – take longer to flash and finish. And if the house sits under mature oak or redwood canopy, expect to pay more for the debris cleaning that happens before a single shingle comes off.
What pushes it down. Access. A single-story home with a clear driveway, easy dumpster placement, and simple gable geometry is a fast job, and faster jobs cost less. Combining a repair with a re-roof you’re already planning also saves money, since the crew is only mobilizing once. If you’re weighing your options, our overview of roof repair services walks through when a fix is the smarter call than a full replacement.
One more thing on pricing: get the number in writing before anyone touches the roof. That’s The Garrison Standard, and it’s the single biggest protection a homeowner has against a bid that grows once the work begins. Brennan Roofing is an independently owned and operated member of the Garrison Partners family, founded in 2000, and we operate under that same written-price rule on every single job.
What Affects Roofing Pricing in San Jose
- How many layers are already up there. Many San Jose homes carry two or three old roofs. Each layer adds tear-off labor and disposal weight, and most cities cap how many layers you can legally stack. We assess layer count during the estimate so it’s priced in from the start.
- Roof pitch and geometry. A steep 10/12 pitch takes longer and requires more fall protection than a low 4/12. Add dormers, multiple valleys, and skylights and you’ve added hours of detailed flashing work – some of the most skilled labor on the job.
- Materials you choose. Architectural asphalt shingles are the value play. Standing seam metal, clay tile, and synthetic slate jump the price two to three times and also weigh more, which may require structural review on older homes.
- Condition of the decking. We can’t see under the shingles until tear-off. On older San Jose homes, plan for some decking replacement; damaged plywood runs roughly $90 to $180 per sheet installed.
- Permits and inspection. Santa Clara County and the City of San Jose require permits for most re-roofs, and inspectors check flashing and underlayment details. Permit fees and inspection time are part of the real cost of doing it right.
- Time of year. Spring and early fall book out fastest here. Scheduling flexibility in the dry summer months can occasionally save you a few hundred dollars because crews move between jobs faster with a clear weather window.
The coastal fog that rolls into neighborhoods like Alum Rock and Alviso matters too. Constant moisture cycling works on flashing and fasteners in ways inland San Jose homes never see, so we spec corrosion-resistant materials on those sides of town. If your home sits in that fog belt, it’s worth reading our notes on roof inspections in San Jose to catch wear before it turns into a leak.
How to Save on Roofing
You don’t have to chase the cheapest bid to save money. The cheapest bid is usually the one that skips the underlayment or vanishes when the guarantee is called on. Here’s what actually keeps the number down without cutting corners.
- Fix small problems before they compound. A $500 repair now beats a $15,000 replacement later. Water that gets past worn flashing into your decking is the single most expensive thing that happens to a roof.
- Get multiple written estimates, then compare line by line. Not just the bottom number – the underlayment, the flashing details, the disposal, the warranty. A bid that’s $3,000 cheaper is often missing $4,000 of work.
- Schedule in the dry season if you can. Late spring through early fall gives crews clean weather windows and can trim labor time and cost.
- Consider a repair-plus-plan approach. If half the roof is sound, a partial re-roof on the failing slope can buy you years before a full replacement. We’ll tell you honestly which one makes sense.
- Ask about manufacturer warranties. Certain material lines from GAF, CertainTeed, and Owens Corning carry stronger system warranties when the whole roof – underlayment, flashing, ventilation – is installed to spec. That’s real long-term value.
- Bundle with other exterior work. If you’re planning gutter replacement or fascia repair, doing it while the crew is already set up saves mobilization cost.
Here’s the part that matters most: no work starts at Brennan Roofing until you have the price on paper. Call (361) 320-9467 for a free estimate, a written number, and a straight answer about what your roof actually needs. A live person answers, day or night – no voicemail, no call-back queue.
Roofing Replacement vs. Repair: Which Costs Less?
A repair almost always costs less up front: $450 to $1,800 versus $12,500 to $28,000 for a replacement. The question isn’t which is cheaper today – it’s which one stops you from paying twice. If your roof is under 15 years old and the damage is isolated to one area, a repair is the right call. If it’s over 20, has multiple leaks, or shows widespread curling and granule loss, repairs become a series of payments on a roof that’s already failing. For a closer look at the decision, see our guide to roof replacement in San Jose.
FAQs – Roofing Cost
How much does it cost to replace a roof in San Jose?
Full asphalt shingle roof replacement in San Jose runs $12,500 to $28,000 for most single-family homes, with the average landing around $15,000 to $18,000. Standing seam metal and tile roofs cost two to three times that. The biggest variables are layer count, roof pitch, and how much decking needs replacing once we tear off the old roof. Call (361) 320-9467 for a free written estimate – the price goes on paper before any work begins.
Is it cheaper to repair or replace my roof in San Jose?
Repairs cost $450 to $1,800 and make sense on roofs under 15 years old with isolated damage. Replacement costs $12,500 to $28,000 and makes sense when the roof is over 20 years old, leaking in multiple spots, or showing widespread granule loss. Patching a roof that’s already failing just means paying again in a year. Call (361) 320-9467 and we’ll tell you honestly which one your roof needs.
How much does a roof leak repair cost in San Jose?
Most leak repairs run $700 to $1,800, depending on where the water’s getting in. Chimney and valley flashing repairs sit at the higher end because they take more detailed work; a resealed vent boot or a patch on a few shingles can come in around $500 to $900. Chasing a leak before it reaches your ceiling and insulation is always the cheaper path. Call (361) 320-9467 and we’ll diagnose it and give you a written number.
Do I need a permit to re-roof in San Jose?
Yes – the City of San Jose requires a permit for most re-roofs, and inspectors check that flashing and underlayment are installed to code before the job closes out. Permit fees typically add a few hundred dollars and some scheduling time to the project, but they also protect you at resale and if you ever file a claim. We handle the permit paperwork as part of the job. Call (361) 320-9467 with questions about your specific property.
How long does a roof replacement take in San Jose?
Most San Jose homes take two to four days from tear-off to final cleanup, assuming no major decking surprises. Larger homes, steep pitches, or heavy tile work can run five to seven days. We stage the dumpster and materials the day before so the crew starts fast, and we clean the site every evening. For exact timing on your roof, call (361) 320-9467 – estimates are free.
Why Homeowners Pick Brennan Roofing
Brennan Roofing operates under The Garrison Standard, a defined set of rules we hold to on every job, not just the ones that are easy. That means a written price before any work starts. Background-checked, uniformed technicians on every call, so you know who’s on your roof. Live phones answered around the clock, no voicemail, no automated system. And the 365-Day Done Right Promise: every repair and installation is guaranteed in writing for one full year, and if it fails inside that period, we come back at no charge.
Our materials come from the major manufacturer lines – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – and we explain your options plainly so you can choose with confidence, not pressure. Brennan Roofing is an independently owned and operated member of the Garrison Partners family, founded in 2000, and every location operates under the same standard. Learn more about Brennan Roofing’s approach to roofing, or explore our full range of services across the South Bay and beyond.
We also work with homeowners across the surrounding area, including roofing in Santa Clara, roofing in Sunnyvale, and roofing in Campbell. If you’re weighing a heavier roofing system, our pages on metal roofing and tile roofing lay out the trade-offs. And when a storm rolls through, our emergency roof repair team is on call to stop the damage fast.
Get Your Written Price Today
Homeowners in San Jose don’t need another vague ballpark over the phone. They need a real number in writing, a crew they can trust on their roof, and a guarantee that holds up if something goes wrong. That’s what we do. Call (361) 320-9467 for a free estimate – a live person answers around the clock, and you’ll have your written price before any work starts.
Written by Travis Oakley, Owner at Brennan Roofing, serving San Jose since 2000.
Pricing reflects the San Jose market as of 2026. Brennan Roofing offers free estimates – call (361) 320-9467.
What Our Customers Say
"Ridge vent added and the attic is cooler. Fair price compared to the other two quotes."
- Vernon C."Neat, quiet, and disciplined crew. Magnet swept the yard after."
- Tonya R."Replaced the underlayment and drip edge as well as shingles. Many roofers skip that. Everything was explained in writing."
- Barry F.