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Business Details
50+ Years
experience
Trusted Roofing Contractors in San Jose Since 1905
Los Gatos Roofing has been a trusted name in the roofing industry for over 115 years, serving the San Jose and South Bay communities with unwavering commitment to quality and customer satisfaction. As a family-owned business, we combine generations of expertise with elite certifications, including Owens Corning Platinum Preferred and CertainTeed Select Shingle Applicator designations. Our team specializes in residential roof replacement, gutter installation, and insulation services, using premium materials and factory-trained techniques.

We prioritize integrity, professionalism, and local knowledge, ensuring every project meets the unique architectural and climatic needs of the region. With awards like the Diamond Certified Award and Angi Super Service Award, we maintain a legacy of excellence while actively supporting community initiatives. Our free estimates, transparent communication, and focus on long-term value have earned us a reputation as a dependable, customer-centric roofing partner.
Services
Roof Replacement Insulation Services Composition Shingles Standing Seam Metal Clay Tile Roofing Concrete Tile Installation Gutter Installation Green Roofing Cedar Shake Roofs Roof Repair
Details
  • Year established: 1905
Highlights and features
  • Over 115 years of experience serving the South Bay Area
  • Family-owned business with generational roofing expertise
  • Free estimates with no-obligation professional advice
  • Elite manufacturer certifications for superior warranties
  • Active community involvement and local knowledge
Associations and certifications
  • Diamond Certified
  • Owens Corning Platinum Preferred Contractor
  • CertainTeed Select Shingle Applicator
  • Angi Super Service Award
What people say
Professional and caring Stellar job Excellent work Smooth process Expertise evident
Services
Roof Replacement
Los Gatos Roofing specializes in complete roof replacement using premium materials like asphalt shingles, clay tile, and cedar shakes. Our factory-trained crews ensure precise installation with proper ventilation and underlayment. We handle permits, inspections, and debris removal, offering free estimates and manufacturer-backed warranties up to 25 years. Our process prioritizes energy efficiency and structural integrity while maintaining clean job sites throughout the project.
Gutter Installation
We provide custom seamless gutter systems fabricated on-site using high-quality aluminum or steel. Our installation includes proper sloping and downspout placement to prevent foundation damage and landscaping erosion. With five profile options and over 20 colors, we ensure aesthetic compatibility with your home. Our team also offers gutter guard installation and repair services for existing systems, maintaining optimal water drainage year-round.
Insulation Services
Our energy-efficient insulation solutions use Owens Corning's AttiCat blown-in fiberglass to achieve R-38 values recommended for California climates. The quick installation process (under 2 hours for 1,000 sq ft) improves energy bills by reducing heat loss. We provide free attic inspections to identify under-insulation issues and use non-settling materials that maintain performance over time, qualifying for federal tax credits and improving overall home comfort.
Standing Seam Metal
We install durable 24-gauge and 26-gauge standing seam metal roofs designed to withstand extreme weather conditions. These modern systems feature concealed fasteners for leak protection and come in multiple color options for aesthetic customization. The lightweight yet robust construction reduces long-term maintenance needs while providing Class A fire resistance. Our team ensures proper installation with integrated ventilation systems for optimal performance in South Bay climates.
Clay Tile Roofing
We offer authentic clay tile roofing solutions with natural color blends and integrated solar options. Our installations meet California's strict building codes while preserving architectural integrity. The durable tiles resist fire, rot, and insect damage with lifespans exceeding 50 years. We provide proper underlayment and flashing installation to prevent water infiltration, ensuring energy efficiency through natural thermal properties while maintaining the classic aesthetic appeal of traditional clay roofing systems.
People
Gary Radonich
Owner
Fourth-generation Los Gatos resident with over 30 years in the roofing industry. Leads the company's commitment to quality craftsmanship and community service while maintaining family traditions established in 1905.
Cameron Radonich
Project Manager
Fifth-generation team member with 15 years of roofing expertise. Oversees project execution from estimate to completion, ensuring seamless communication and adherence to the company's high standards for workmanship and customer satisfaction.
Questions
Does Los Gatos Roofing provide free estimates?
Yes, we offer free in-home inspections and no-obligation estimates for all roofing, gutter, and insulation services with no upfront costs required.
What areas do you serve?
We serve San Jose and surrounding South Bay communities including Los Gatos, Campbell, Saratoga, Santa Clara, and Cupertino with local expertise since 1905.
Are your contractors certified?
Yes, we hold elite certifications including Owens Corning Platinum Preferred Contractor and CertainTeed Select Shingle Applicator with factory-trained installation teams.
Do you handle permits and inspections?
Yes, we manage all permitting requirements, inspections, and paperwork for roof replacement projects to ensure compliance with local building codes.
What payment methods do you accept?
We accept major credit cards, checks, and financing options. No cash payments are required upfront as per California consumer protection laws.
Why are gutters important for my home?
Proper gutters prevent foundation damage, protect landscaping, and avoid water intrusion that can cause structural issues and pest infestations in South Bay climates.
Reviews (4)
R. B.
Dec 30, 2021 Report
Strong experience with Los Gatos Roofing across their team.

There's lots of demand before the next big Bay Area rain front, so we appreciated they made the time when others wouldn't. Cost was at or below other estimates. No fuss, no upselling, no drama. Office staff was quick, competent and clear. Folks arrived when they said they'd arrive, roof fixes were hands-off, and everybody we dealt with at the company was professional. Appreciate the team, would use again ( ... but hope we won't need to).
D. W.
Dec 18, 2021 Report
When Dale told us that Los Gatos Roofing would replace the roof, skylights and guttering on our 3000 square foot ranch house in three days, we were skeptical; but his crew not only completed the task in the time, they did so to a high standard and at a competitive rate. Day 1:
Just before 8am, a crew of about 10 arrived to tear off the roof. Within a couple of hours, the old roof and guttering had been removed and taken away in three trucks that arrived with choreographed precision. As the last of the demolition crew was leaving, a truck carrying the plywood and underlay arrived; what was particularly
John K.
Nov 10, 2021 Report
Last year I called Los Gatos Roofing to repair a leak in my clay tile roof. They took a look and said that there were some other cracked tiles around the roof that needed attention as well. They quoted me $800 to do the work. I agreed. When they arrived, two men were up on the roof for 20 minutes and left. I received the bill for $800. I had agreed to this, of course, but this didn't seem right, so I called to question it. I believe it was Randy who seemed indignant that I had questioned the bill (I told him that I realized that I had agreed to it, but had questions) He went on about
Alan S.
Nov 04, 2021 Report
Good roof but watch the salesman like a hawk

They installed my roof and seemed to do a good job
Now I find if a scrimped on the gutters which I got is a package with the roof
My gutters are 4 inches the narrowest possible high profit margin I'm sure but not a good match for my ranch style house with large roof area

This last rain all the gutters overflowed despite having just clean them

Hope I don't end up with expensive foundation damage
The gutters are clearly too small and they installed one fewer gutter downspouts than before without advising me
Clearly watch the salesman like