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.

Request Received!

We'll contact you within 2 hours. For urgent leaks, call (626) 594-6858.

No obligation · 100% secure · No spam

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.

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.

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.

What Our Customers Say

Real reviews from California homeowners & businesses.

“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.”

Roof Titan commercial roofing contractor providing expert services, showcasing customer satisfaction and quality repairs in Westminster.
Maria R.
Woodland Hills, CA

“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.”

peter nguyen, savannah nguyen
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.”

Leslie Alexander, professional roofing technician from Roof Titan, showcasing expertise in roof repair and maintenance services.
Sandra K.
Rancho Palos Verdes, CA

Complete Roof Waterproofing Services

Roof Waterproofing service
  • 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.

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.

Ready to Fix Your Roof?
We'll Be There Fast.

Free inspection · Same-day quotes · No pressure · Licensed & insured

Or Send Us a Quick Message

We Got Your Message!

We'll call you back within 2 hours. Or call us now: (626) 594-6858