Metal Roofing in San Jose, CA
Metal roofing is a long-lasting, low-maintenance roofing system for San Jose homes that reflects heat, survives winter storms, and protects your property for 50+ years. It's a smart upgrade for homeowners in Willow Glen, Almaden Valley, and across the city who want to stop worrying about shingle wear, leaks, and energy bills. South Bay Roofing CO installs and repairs standing seam and screw-down metal roofs with the precision your home deserves.
Call 6504471464What Does Metal Roofing Involve?
Metal roofing is a complete roofing system using steel or aluminum panels, underlayment, and flashing to replace or cover your existing roof. Unlike asphalt shingles that degrade in San Jose's intense sun, metal panels reflect UV rays, resist wind, and shed water quickly. We install two main types: standing seam (hidden fasteners, best for steep slopes) and exposed fastener (screw-down, cost-effective for lower pitches). Both start with a solid deck and a self-adhered underlayment that seals around every nail.
The job isn't just screwing panels down. It's measuring, cutting, and fitting each panel to your roofline, valleys, and chimneys. We use ring-shank nails for any wood-to-metal attachments, and we hand-seal every exposed fastener. The starter course and field course are laid in staggered courses so water never finds a straight seam. A proper metal roof is a puzzle—each piece locks with the next, and the flashing directs water away from walls and skylights.
Metal roofing is not a DIY project. It requires specialized tools (shears, brakes, seamers), safety equipment, and knowledge of thermal expansion. Panels expand and contract with temperature swings—San Jose can see 100°F days in summer and 40°F nights in winter—so fasteners must be placed to allow movement without stripping. We account for that in every install.
How Much Does Metal Roofing Cost in San Jose?
Metal roofing costs more upfront than asphalt but saves you money over time. In San Jose, expect to pay $12 to $20 per square foot for materials and labor. That's $18,000 to $30,000 for a typical 1,500-square-foot roof. Standing seam runs $15–$22 per square foot; exposed fastener runs $10–$14. The price includes tear-off of old shingles, underlayment, flashing, trim, and cleanup.
Why the range? Panel thickness (24-gauge vs. 26-gauge), finish (galvalume vs. painted), and roof complexity. A simple gable roof in East Side costs less than a roof with multiple valleys and dormers in Los Gatos Hills. We give a free estimate after measuring your roof, checking decking condition, and noting any rot or sag that needs repair first.
Financing helps. Many homeowners spread the cost over 5–10 years. And the energy savings are real: a metal roof with a cool-coating can cut cooling costs by 10–25% in San Jose's dry summers. Over 50 years, that's thousands in utility savings—plus no replacement costs like you'd have with shingles every 15–20 years.
When Do You Need Metal Roofing?
You need metal roofing if your current roof shows end-of-life wear: granule loss, widespread cracking, curled shingles, or leaks that keep coming back. If you see rot or decay in the decking, or water wicks into your attic during winter storms, it's time to replace—not patch. Metal roofing also makes sense if you're tired of cleaning moss or algae (San Jose's low humidity helps, but shade still grows it).
Consider metal roofing for a new roof on a home you plan to keep for decades. It's an investment that pays off in durability and resale value. If you live in a wildfire-prone area near Mount Hamilton or the hills, metal roofing is Class A fire-rated—it won't ignite from embers. That's peace of mind no shingle can match.
Our Metal Roofing Process
1. Inspection and Estimate
We inspect your roof, measure every plane, and check for rot, sag, or deck damage. You get a written quote with material options and a timeline—usually 2–3 days for a typical home.
2. Tear-Off and Deck Prep
We strip old shingles, inspect the deck, and replace any rotted plywood. We install self-adhered underlayment and drip edge at all eaves and rakes.
3. Panel Fabrication and Installation
Panels are cut to length on-site or pre-ordered. We lay the starter course, then field courses in staggered courses, securing with clips (standing seam) or screws (exposed fastener). Every seam is sealed, and flashing is hand-formed around pipes, chimneys, and valleys.
4. Trim and Cleanup
We install ridge caps, gable trim, and any wall flashing. We sweep for nails, magnet-sweep the yard, and haul away all debris. You get a clean site and a roof that's ready for decades.
Warranty and Insurance
Metal roofing comes with two warranties: the manufacturer's (30–50 years for paint finish, lifetime for substrate) and our workmanship warranty (typically 10 years). We're licensed and insured, and we handle any permit required by San Jose. Our work is backed by a satisfaction guarantee—if we miss a nail, we fix it.
Insurance often covers metal roofing if your old roof was damaged by storm or fire. We document the damage, work with your adjuster, and make sure the claim covers materials and labor. We've seen too many homeowners underpaid—we make sure you get what you're owed.
Why San Jose Homeowners Choose Metal Roofing
San Jose's climate is hard on roofs. Dry summers with intense sun bake asphalt, causing granule loss and cracking. Winter rain storms stress flashing and valleys. Metal roofing handles both: it reflects heat, resists UV, and sheds water fast. With low humidity, algae and moss aren't a big issue, but metal's smooth surface makes them easy to clean if they appear.
We're a local San Jose roofing contractor, not a national chain. We know the neighborhoods—Willow Glen's craftsman bungalows, Almaden Valley's hillside homes, Downtown's mixed-use roofs. We've seen what works and what doesn't. Metal roofing is the right choice for many, and we'll tell you if it's not right for yours.
What's Included
- Full tear-off of existing shingles and deck inspection for rot or sag
- Self-adhered underlayment and drip edge installation
- Standing seam or exposed fastener metal panels (26-gauge steel or aluminum)
- Custom flashing for valleys, chimneys, skylights, and pipe boots
- Color-matched trim, ridge caps, and gable flashing
- All fasteners, clips, and sealants rated for San Jose weather
- Manufacturer's warranty (30–50 years) plus 10-year workmanship warranty
- Complete cleanup with magnet sweep and debris removal
Our Metal Roofing Process
- Inspection and Estimate: We walk your roof, measure every plane, check decking for rot or sag, and note any issues. You get a written quote with material choices and a timeline—usually 2–3 days for a typical home.
- Tear-Off and Deck Prep: We strip old shingles, haul them away, and replace any rotted plywood. We install self-adhered underlayment and drip edge at eaves and rakes to keep water out.
- Panel Installation: Panels are cut to length on-site. We lay the starter course, then field courses in staggered courses. Standing seam uses hidden clips; exposed fastener uses screws with hand-sealed washers.
- Flashing and Trim: We hand-form flashing around valleys, chimneys, skylights, and pipes. Ridge caps and gable trim are installed to shed water and look clean.
- Final Inspection and Cleanup: We check every seam, fastener, and seal. We magnet-sweep the yard, remove all debris, and walk you through the finished roof. You get a warranty card and peace of mind.
Signs You Need Metal Roofing
Signs You Need Metal Roofing
- Your asphalt shingles show granule loss—grit in gutters or bare spots on the roof.
- Water stains on ceilings or walls after winter storms, indicating a leak that wicks along the decking.
- Shingles are curling, cracking, or buckling—end-of-life wear from San Jose's intense sun.
- Your roof is 15–20 years old and you're planning to stay in your home another 20+ years.
- You see rot or decay on the decking or rafters in the attic.
- Your energy bills spike in summer—a metal roof's reflectivity can cut cooling costs.
- You live near wildland areas (Mount Hamilton, Los Gatos Hills) and want a Class A fire-rated roof.
- You're tired of patching leaks and want a one-time, 50-year solution.
Don't just take our word for it — hear from our satisfied customers.
"Our 1970s ranch in Willow Glen had a leaking roof for years. South Bay Roofing CO replaced it with standing seam metal. They found rot in the decking that two other companies missed. The crew was clean, fast, and the roof looks sharp. No more leaks through the rainy season." — Mark T.
"I was skeptical about metal roofing on our Almaden Valley home, but the heat reflection is amazing. Our upstairs is cooler, and the roof survived the last winter storms without a drip. The team explained every step and the cost was fair." — Sarah L.
"After a storm damaged our old shingles, we called South Bay Roofing CO. They handled the insurance claim, replaced the roof with metal, and even fixed a sagging section on our East Side home. Professional from start to finish." — David R.
Ready to get started? Call us today at 6504471464 for a free estimate.
Free estimates · GAF Master Elite certified · 25-year warranty
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