“Roof Titan was incredibly responsive. They answered on the first call, came out the next day, and had our leak fixed by the end of the week. Fair price, great work.”
Maria R.
Woodland Hills, CA
Permanent Waterproofing — 10-Year Warranty
Roof Waterproofing
Permanent waterproofing for flat and low-slope roofs in . Stop recurring leaks for good with a 10-year warranty.
★★★★★
4.9 Rating
5,000+ Customers
Licensed & Insured
Residential & Commercial
Get Your Free Roof Inspection
We'll respond within 2 hours during business hours.
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Warning Signs
Signs You Need Roof Waterproofing
Don't wait for small issues to become expensive disasters. Here's what to watch for:
Recurring Leaks After Patch Repairs
If you've had the same roof patched 2-3 times, the membrane itself has failed. Waterproofing is the permanent fix.
Seam and Joint Failures
Flat roof seams, pipe penetrations, and wall junctions are the most common waterproofing failure points.
Aging Membrane Near End of Life
Roofing membranes have a 15-25 year lifespan. Before failure, waterproofing extends protection at a fraction of replacement cost.
Mold or Moisture Damage Inside
Interior mold or damp insulation is a sign that water has been infiltrating through the roof membrane for months.
How It Works
Simple. Fast. Guaranteed.
Getting your roof fixed is easier than you think. Here's our 4-step process:
Schedule
Schedule your inspection online or by phone — we confirm within 2 hours.
Inspect
Our licensed roofer thoroughly assesses every inch of your roof and documents all findings.
Quote
Receive a clear, itemized quote the same day. No hidden fees. No pressure.
Complete
We complete the work to code, clean up fully, and back everything with our workmanship warranty.
See Our Work
Watch Roof Titan in Action
See how we handle roof repairs from start to finish.
Quick Clips
Blocked Valley & Slipped Tiles! 15.4K viewsA blocked valley filled with debris prevents proper water flow, causing leaks.
Hidden Leak Was the Skylight! 5.9K viewsTracking a hidden leak to its source: the skylight.
Flashing Issue & Leak Tracking! 4.7K viewsTracking a leak to a flashing failure and sealing the entry point.
Primed for Silicone Coating! 3.1K viewsPrepping and priming a roof for professional silicone coating application.
Testimonials
What Our Customers Say
Real reviews from California homeowners & businesses.
“After three roofers ghosted us, Roof Titan showed up on time, gave an honest quote, and did excellent work. They've earned a customer for life.”
James T.
Corona, CA
“Professional from start to finish. The inspection was thorough, the quote was detailed, and the repair looks perfect. Highly recommend Roof Titan.”
Sandra K.
Rancho Palos Verdes, CA
What's Included
Complete Roof Waterproofing Services
- Full moisture scan and waterproofing assessment
- Elastomeric waterproofing membrane application
- Silicone-based roof waterproofing (ideal for ponding areas)
- Seam, flashing, and joint waterproofing reinforcement
- Penetration waterproofing (pipes, vents, HVAC units)
- Parapet wall cap and base flashing waterproofing
- Interior drainage and slope correction
- 10-year waterproofing system warranty
2-Hour Response
We call back within 2 hours — not days.
Same-Day Quotes
Detailed written quote on the day of inspection.
No Subcontractors
Our own licensed crew — nobody outsourced.
Warranty Backed
2-yr workmanship + manufacturer guarantees.
FAQ
Common Questions
Waterproofing focuses on permanent sealing of the membrane, seams, and penetrations to prevent all water intrusion. Coating adds a protective layer on top for UV and weather resistance. Most quality systems combine both.
Yes. We first locate and address the active leak source, then apply waterproofing to create a permanent barrier. Same-day emergency service is available for active leaks in your area.
A professionally installed elastomeric or silicone waterproofing system lasts 10-20 years depending on the product and roof conditions. We back our work with a 10-year warranty.
We waterproof flat roofs (TPO, EPDM, modified bitumen, BUR), low-slope roofs, and concrete/metal decks. Not appropriate for steep-slope asphalt shingle roofs — those require shingle repair or replacement.
Most residential waterproofing projects range from $1,500–$6,000 depending on roof size and condition. Commercial projects are priced by square foot. Free estimate always included.
If the roof deck and structure are sound, waterproofing is 40-70% less expensive than replacement and just as effective. Our free inspection determines if your roof is a good waterproofing candidate.
Get Started TodayReady to Fix Your Roof?
Ready to Fix Your Roof?
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Free inspection · Same-day quotes · No pressure · Licensed & insured
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We'll call you back within 2 hours. Or call us now: (626) 594-6858