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San Jose's Roofer Since 1952

Roofing Contractor
in San Jose, CA

Keith Roofing Company has been covering San Jose roofs for decades — residential and commercial, tile and shingle, repair and replacement. Family-owned since 1952. BBB A+ Accredited. California Licensed #1118418.

Get a Free Estimate (408) 295-8616
73+Years in Business
1952Family-Founded
A+BBB Accredited
4.7 ★91 Reviews
San Jose Roofing

San Jose's Trusted
Local Roofer

San Jose is our home city. Keith Roofing Company was founded here in 1952 when San Jose was still a town of orchards and canneries with around 95,000 residents. Seventy-three years later, San Jose has become the third-largest city in California with over a million people, and Keith Roofing has been on the roofs of thousands of San Jose homes and commercial buildings across every neighborhood the city has grown to encompass.

Our office at 424 Lano Street in the Willow Glen area has been our base of operations for decades. From there, our crews travel across San Jose every working day — from the Cambrian Park tract homes in the south to the downtown commercial buildings in the center, from the hillside custom homes of Almaden Valley to the rancher neighborhoods of Evergreen and Berryessa. We know which neighborhoods have what roof types, which inspectors care about what details, and which streets are tight enough to need special planning for roofing material delivery.

What makes us different from other San Jose roofing companies isn't marketing — it's time. When you've been roofing homes in one city for seven decades, you see every material performance cycle. You learn which contractors shortcut which details and what those shortcuts cost homeowners 15 years later. You develop relationships with tile manufacturers that give you access to legacy colors discontinued decades ago. You know the permit office staff by first name. Every Keith Roofing San Jose project starts with that institutional knowledge.

Keith Roofing Company project in San Jose CA

What this means for you: When you call Keith Roofing for your San Jose home or business, you're not getting a generic quote from a roofer who works everywhere and specializes nowhere. You're getting contractors who know this specific market — the typical failure modes, the dominant roof systems, the permit process, the HOA and preservation rules, and the pricing that makes sense for your property type and neighborhood.

Local Roofing Context

What We See on
San Jose Roofs

Decades of working this specific market means we know the common failure modes, the dominant roof systems, and what to look for at estimate.

San Jose residential roofing is overwhelmingly architectural asphalt shingle (on mid-century and newer tract homes across the bulk of the city), with significant concentrations of concrete and clay tile (on Spanish Revival, Mediterranean, and custom homes — particularly in Willow Glen, Almaden Valley, and Cambrian). Commercial roofing in San Jose runs the full range — we install TPO single-ply for modern commercial flat-roof systems, silicone restoration coatings for aging commercial roofs, and modified bitumen and BUR for specific applications. Downtown San Jose has small-commercial flat-roof work across its historic storefronts. The industrial corridors along the 101 and 880 have substantial warehouse and logistics building roofing demand.

Aging 1960s-80s Tract Home Re-Roofs

Thousands of San Jose homes built in the post-war residential boom are now on their second or third roof cycle. Original 3-tab shingles replaced in the 1990s are now aging out and due for architectural shingle replacement with proper ventilation upgrades.

Tile Roof Underlayment Failure

San Jose's extensive tile roof inventory — particularly in Willow Glen, Almaden, and Cambrian — is largely running on original underlayment that's 30-50 years old. Lift-and-relay is often the right answer when tile is sound but underlayment has failed.

Wildfire Zone Compliance

Portions of San Jose are in WUI (Wildland-Urban Interface) overlays, including properties near Alum Rock, Silver Creek, and the hillside neighborhoods in south San Jose. Class A fire-rated assemblies are required in these zones.

Commercial BUR Replacement

San Jose has substantial inventory of 1970s-90s commercial buildings with aging built-up roofs ready for TPO conversion or silicone coating restoration.

Our San Jose Specialty

San Jose's Roofing Range: Every Material, Every Neighborhood

Why This Material Works Here

San Jose's sheer size — over 180 square miles and 1 million residents — means we handle the widest range of roof types of any service area. The city spans Spanish Revival historic districts, mid-century tract neighborhoods, custom hillside estates, newer subdivisions, commercial office parks, industrial warehouses, and small retail corridors. Each has its own typical roof system, its own failure modes, and its own material preferences. Our seven decades of San Jose work mean we've installed, repaired, and replaced every one of these systems — many of them multiple times.

Technical Installation Approach

For residential shingle (the dominant San Jose roof type), we're certified contractors for CertainTeed (SureStart PLUS), GAF (System Plus), and Owens Corning (Preferred Contractor) — giving us access to enhanced warranties that roofers tied to just one manufacturer can't match. Typical installations include synthetic underlayment, ice-and-water shield at valleys and penetrations, architectural shingles installed per manufacturer spec, ridge ventilation, and proper flashing renewal at chimneys and skylights.

For tile roofing, we work with Monier Lifetile, Eagle Roofing, and Westlake Tile (formerly Eaglelite), with direct supplier access to legacy color profiles for matching 30-50 year old installations. We do full tear-off and replace, lift-and-relay underlayment restoration, and selective tile replacement for repairs and renovations.

For commercial flat-roof work, we install Carlisle SynTec, GAF EverGuard, and Firestone UltraPly TPO single-ply systems, apply GE and Gaco silicone restoration coatings, and handle modified bitumen and built-up roof installations for specific applications. Commercial work includes structural review coordination, Title 24 energy compliance documentation, and property-manager-friendly scope reporting.

Expected Longevity & Value

San Jose's Mediterranean climate is actually relatively easy on roofing materials — mild winters, modest rainfall, and mostly-dry summers. Architectural shingle delivers 25-35 year service life here. Concrete and clay tile roofs regularly reach 50-75+ years. Commercial TPO delivers 20-30 year warranted service life. For San Jose homeowners planning to stay long-term, material investment typically pays back in avoided re-roof cycles and insurance benefits.

Architectural Shingle, Concrete Tile, TPO & More installation by Keith Roofing in San Jose
Climate-Specific Roofing

San Jose's Climate
and Your Roof

Roofing materials and installation techniques should reflect local climate realities — not generic specifications. Here's what San Jose's specific weather patterns mean for your roof.

Summer Heat & UV

San Jose summers push 88-95°F with significant UV exposure over 250+ clear days per year. Dark-color shingles on south-facing slopes see surface temps exceeding 150°F. Algae-resistant and cool-roof compliant materials are standard recommendations.

Winter Rainfall

Mild wet winters average 15 inches of rainfall concentrated in December through March. Atmospheric-river events can deliver 3-5 inches in 48 hours. Proper flashing and valley detailing handles these events; marginal installations fail.

Fog & Fire Exposure

San Jose has portions in WUI and Fire Hazard Severity Zones — primarily in hillside areas adjacent to open space (upper Almaden, Silver Creek, Evergreen foothills, areas near Alum Rock). Class A fire-rated assemblies are required in these zones. Fog exposure is moderate in central San Jose and higher closer to the Bay and hillside areas.

Practical Implications

San Jose roofing priorities: UV-resistant materials that hold color and performance over 25-35 years, Title 24 cool-roof compliance (enforced by the San Jose permit office), proper flashing for the annual winter storm cycle, and fire-zone compliance where applicable. The city's sheer size means roof recommendations should match the specific neighborhood and property type.

San Jose Neighborhoods

Where We Work
in San Jose

Willow Glen

Our home turf — historic bungalows, Spanish Revivals, Craftsmans, and small-commercial along Lincoln Avenue.

Almaden Valley

Concrete tile country — custom hillside homes with multi-decade Monier and Eagle Roofing installs.

Cambrian Park

1960s-70s tract homes — straightforward architectural shingle re-roofs are our daily work.

Evergreen

Sprawling residential with diverse roof systems and strong solar-retrofit demand.

Berryessa

Established neighborhoods with tile and shingle mix, excellent access to 680.

Rose Garden / Downtown

Historic residential near downtown plus commercial flat-roof work along Santa Clara Street and 1st Street corridors.

Our San Jose Process

How We Handle Roofing
in San Jose

01

Free On-Site Assessment

Our estimator comes to your San Jose property, walks the roof (where safe), inspects the attic, and takes measurements. No high-pressure sales tactics, no overnight decisions required.

02

Written Line-Item Estimate

You receive a detailed written estimate with material options, labor specs, permit fees, warranty information, and timeline. Clear pricing you can compare against other bids.

03

Permit Pull & Scheduling

We pull the San Jose building permit (typically 2-5 business day turnaround), schedule your project start, and coordinate material delivery to your property.

04

Professional Installation

Our W-2 crews perform the installation following manufacturer spec and San Jose building code. We protect landscaping, clean up daily, and document installation details for warranty registration.

05

Warranty & Follow-Up

Final inspection, warranty paperwork delivered to you, manufacturer warranty registration completed, and photographic documentation for your records. We also follow up at 30 and 90 days to ensure everything's performing as expected.

Why Choose Keith Roofing

Why San Jose Homeowners
Choose Us

01

73 Years of San Jose Work

We've been roofing San Jose homes since 1952. Every San Jose roofing contractor with 'Since' language younger than that is claiming a history we've actually lived. Our institutional knowledge of this market runs deeper than anyone else's.

02

Based in San Jose, Not Out-of-Area

Our office is at 424 Lano Street in Willow Glen. We live here, work here, and our crews commute from nearby neighborhoods. You're not hiring a contractor who sends crews in from Sacramento or the Central Valley.

03

Multi-Manufacturer Certification

As CertainTeed SureStart PLUS, GAF System Plus, and Owens Corning Preferred Contractors — plus certified for Monier Lifetile, Eagle Roofing, Carlisle SynTec, and IB Roof Systems — we offer enhanced warranties no single-brand roofer can match.

04

Transparent Business Practices

BBB A+ Accredited. California Licensed (CSLB #1118418). 4.7 stars on Google with 91+ verified reviews. Full insurance documentation available. Clear written estimates. No surprise change orders. The boring stuff other roofers make exciting.

Roofing Services in San Jose

What We Do
for San Jose Homes & Businesses

Willow Glen Craftsman — Full Tear-Off to Architectural Shingle — Keith Roofing Company case study
Featured San Jose Project

Willow Glen Craftsman — Full Tear-Off to Architectural Shingle

Willow Glen / San Jose

A 1948 Craftsman-influenced ranch home in Willow Glen came to us with a 32-year-old asphalt shingle roof installed in 1992. The homeowner had been patching leaks at the chimney flashing for three years and wanted a full solution before the upcoming winter. Our assessment found: original skip-sheathing deck (common for the era), failed chimney flashing with substantial water intrusion, two hidden areas of deck rot, and compromised ridge ventilation. We completed a full tear-off and re-roof: deck rot remediation with new solid sheathing overlay (documented with photos for records), new ridge vent ventilation system, full chimney flashing renewal with proper counter-flashing, synthetic underlayment with ice-and-water shield at all valleys, and installation of CertainTeed Landmark architectural shingles in Weathered Wood with 50-year SureStart PLUS warranty. Project completed in 4 days, final inspection passed first visit, and homeowner received complete documentation package for insurance renewal.

San Jose Roofing Questions

Local Answers
for San Jose Homeowners

Yes. San Jose Municipal Code requires a permit for any roof replacement or significant repair. We pull every permit required and handle inspections — that's part of our standard service, not an add-on. Working without a permit voids most manufacturer warranties and creates serious issues at resale or during insurance claims. The San Jose Building Department is at 200 E Santa Clara St, 4th Floor; typical turnaround on a standard residential roof permit is 2–5 business days.
A standard residential shingle re-roof is typically 2–4 days of on-site work for an average San Jose home. Tile re-roofs take 4–7 days due to the careful tile removal and installation process. Commercial flat-roof projects vary significantly by size and system — we provide specific timelines with every estimate. Permits add 2-5 business days before start; weather during rainy season (December-March) can extend timelines.
It depends on your home's style, HOA rules, and budget. Spanish Revival and Mediterranean homes are best served by concrete or clay tile (Monier Lifetile, Eagle Roofing). Craftsman and mid-century ranch homes look great with architectural asphalt shingles (CertainTeed Landmark, GAF Timberline HDZ, Owens Corning TruDefinition). For homes in wildfire-adjacent areas of San Jose, Class A fire-rated assemblies are essential. We walk through options with samples during the estimate.
For typical 1,600–2,400 sq ft San Jose residential homes, architectural shingle re-roofs run $12,000-$24,000+ depending on pitch, complexity, and material choice. Concrete tile re-roofs run $22,000-$40,000+. Clay tile runs higher. Commercial flat-roof projects vary significantly by size. We provide transparent line-item estimates with all pricing disclosed — no surprise add-ons after signing.
In some cases, California building code allows a roof overlay — but we almost always recommend a full tear-off in San Jose. Overlays add weight to the structure, hide underlying deck damage, can void manufacturer warranties, and typically shorten the new roof's service life by 5-10 years. The cost savings of an overlay rarely justify these trade-offs. A proper tear-off lets us inspect the deck, repair any damage, and install a clean system.
Yes. For active leaks, storm damage, or fallen trees, call (408) 295-8616 — during business hours we prioritize same-day response when possible. After-hours emergencies prioritize active leaks threatening structural damage. We can dispatch crews to tarp or temp-patch quickly to protect your home from further damage while the permanent repair is planned and scheduled.
No — and this matters. California license status, insurance coverage, BBB accreditation, manufacturer certifications, review history, and years-in-business all vary significantly among San Jose roofing contractors. We're BBB A+ Accredited, CSLB Licensed (#1118418), carry full liability and workers' comp insurance, are certified by all three major shingle manufacturers, maintain a 4.7-star rating across 91+ reviews, and have been operating continuously in San Jose since 1952. Verify these credentials with any contractor you're considering.
Yes — substantially. We handle commercial flat-roof systems (TPO, EPDM, modified bitumen, BUR), silicone restoration coatings, and maintenance contracts for San Jose commercial properties. Our commercial work spans downtown storefronts, office parks, industrial warehouses, and retail buildings. Property manager relationships, documented scope of work, photo reports, and clean invoicing are standard.
Depends on material and installer certification. We're CertainTeed SureStart PLUS, GAF System Plus, and Owens Corning Preferred Contractor certified — meaning we can offer enhanced manufacturer warranties (often 30-50 years on shingle systems, 25-50 years on tile, 20-30 years on commercial TPO). Plus our workmanship warranty on top of manufacturer coverage. Specific warranty terms depend on material and system choice.
Yes. We partner with Hearth Financial to offer home improvement financing with soft-pull pre-qualification (no impact to credit) and quick approval decisions. Typical San Jose shingle re-roof financing runs $150-$280/month on 10-year terms, tile re-roofs $250-$500/month. See our financing page for payment examples, or discuss financing options during your free estimate.
Also Serving

Nearby Service Areas

Your San Jose Roof, Next

Trusted Roofing
in San Jose Since 1952

Every Keith Roofing estimate is free and no-obligation. Call or message us and we'll be in touch within one business day.

BBB A+ Accredited · CSLB #1118418 · Based in San Jose · Serving San Jose Since 1952