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Roof leaking right now? We answer emergency calls.
24/7 Emergency Response
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(408) 249-4646
Commercial & Industrial Roofing • Bay Area
From emergency leak repairs to cool roof systems and new installations, Just Leaks keeps your facility dry, code-compliant, and running across San Jose, San Francisco, San Mateo, Santa Clara, and from Monterey to Livermore.
Some of our clients that we work with
What We Do
One experienced crew for every roofing need, from a single leak to a full replacement. We specialize in flat and low-slope commercial roofs across the Bay Area.
Time & materials leak service with a $380 minimum per appointment. We find the source, document it, and fix it right.
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Scheduled programs that extend roof life, catch issues early, prevent surprise leaks, and protect your warranty.
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Energy-saving cool roof coatings that lower cooling costs and meet Title 24 requirements.
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New installations for warehouses, industrial buildings, offices, and mixed-use properties.
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Proper waterproofing for new HVAC, solar, skylights, and rooftop equipment. No shortcuts.
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Fix ponding water, undersized drains, and slope problems before they turn into structural damage.
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Durable waterproof membranes for roof decks, walkways, and mechanical platforms.
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Comprehensive condition reports with measurements, photos, and prioritized recommendations.
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From single-ply membranes to specialty coatings and waterproofing. We specify and install the right system for your building.
TPO and PVC single-ply roofing systems for durable, energy-efficient commercial roofs.
AcryPly, AcryShield, urethanes, and silicone coatings that restore and protect existing roofs.
Spray polyurethane foam systems for seamless, high-performance commercial roofing.
Gaco urethane and acrylic waterproofing for common areas and pedestrian walkways.
Cementitious waterproofing with lath and acrylic topcoat for decks and exposed surfaces.
Professional shingle roofing installation and replacement where the building requires it.
Ongoing maintenance programs that keep roofs performing and reduce costly emergency repairs.
Waterproofing for rooftop planters and landscaped areas that must stay watertight below.
Specialized waterproofing for fountains and water features to prevent leaks into occupied space.
Leak service is billed time & materials, with a minimum charge of $380 per appointment.
24/7 Emergency Response
When a leak threatens inventory, equipment, or tenants at 2 AM, you need a crew that answers the phone and shows up fast. Our emergency team responds across San Jose and the Bay Area — day or night, rain or shine.
Leak service is billed time & materials with a $380 minimum per appointment. No surprises.
Why Just Leaks
Commercial roofing is all we do. Since 1995, we've built our reputation one honest repair, one clear report, and one dry building at a time.
Founded in 1995 and 100% dedicated to commercial and industrial roofing. No residential side jobs, just the roofs that keep businesses running.
Our technicians go through ongoing training so every repair, inspection, and installation is done to a consistent, professional standard.
CA Contractor License #712805, classifications B (General Building) and C39 (Roofing). Fully bonded and insured for your protection.
You get clear notes, measurements, and photos with every assessment and repair, so you always know what was done and why.
We serve private property owners, property managers, industrial facilities, and public agencies, including prevailing wage projects.
When a leak threatens inventory, equipment, or tenants, we move fast to stop the damage and stabilize your roof.
Years in Business
Permitted Projects
BBB Rated Since 1993
Counties Served
About Just Leaks
Just Leaks Inc. has been keeping Bay Area commercial and industrial buildings dry since 1995. Headquartered in San Jose, we work from Monterey to Livermore, including San Francisco, San Mateo, and Santa Clara counties.
Our company is led by owner Hector Flores, who joined Just Leaks in 2004 and took over ownership in 2023 after 19 years with the crew. That continuity matters: the same people who inspect your roof today are the ones who'll be here to service it years from now.
Our Work
Real jobs across San Jose and the SF Bay Area: leak repairs, maintenance, cool roofs, and new installations documented in the field.
Save Time & Money
Lower cooling costs, extend the life of your existing roof, and meet California's energy standards. Ask us if a cool roof system is right for your building.
FAQ
Based in San Jose, we serve the entire San Francisco Bay Area, including San Francisco, San Mateo, Santa Clara, and everywhere from Monterey to Livermore.
No. Just Leaks specializes exclusively in commercial and industrial roofing. That focus is how we've stayed sharp on flat roofs, low-slope systems, and rooftop equipment work for 30+ years.
Yes. Licensed in California as both a General Building contractor and a Roofing contractor under CSLB License #712805 (B, C39), fully bonded and insured.
Yes. Call (408) 249-4646 and we'll get someone out to stop the damage.
Absolutely. We regularly work with both private and public sector clients, including projects with prevailing wage requirements.
Leak service is billed time & materials (T/M), with a minimum charge of $380 per appointment.
We install single-ply (TPO and PVC), roof coatings (AcryPly, AcryShield, urethanes, and silicone), SPF foam, Gaco urethane and acrylic waterproofing for common areas and walkways, Westcoat waterproofing systems, shingle systems, planter waterproofing, and fountain waterproofing, plus preventative maintenance programs.
Call us at (408) 249-4646 or request a free roof assessment. We'll schedule a site visit, document conditions, and send a clear written proposal.
Contact Us
Tell us about your building. We'll send an experienced roofer to inspect the roof, document conditions with photos, and give you a clear written proposal. No pressure.
We'll be in touch soon.
