Waterproofing in Santa Ana, CA
Commercial waterproofing seals the vulnerable transitions where most leaks actually start — parapet walls, deck-to-wall joints, plaza decks, and below-grade areas. It uses membranes, sealants, and flashing details engineered for standing water and thermal movement, not the shingles-and-underlayment approach used on sloped residential roofs.
Top Waterproofing Contractors in Santa Ana
Listings updated July 2026
Ocean Roofing Inc
Santa Ana, CA
Ocean Roofing Inc. | Santa Ana, CA — commercial flat, TPO, modified bitumen & metal roofing for retail, warehouse & offi...
Santa Ana Roofing
Santa Ana, CA
Santa Ana Roofing serves commercial property managers in Santa Ana, CA with TPO, EPDM, coatings, and metal roofing acros...
Santa Ana Roof Repair and Installation Services
Santa Ana, CA
Santa Ana Roof Repair and Installation Services delivers commercial roofing — TPO, EPDM, modified bitumen & more — for S...
VCR Roofing Company Inc
Santa Ana, CA
VCR Roofing Co. serves Santa Ana commercial & industrial properties with flat roofs, coatings, metal systems, re-roofing...
AllStar Roofers Santa Ana
Santa Ana, CA
AllStar Roofers Santa Ana provides commercial roofing services in Santa Ana, CA, covering TPO, EPDM, modified bitumen, c...
S New Roof
Santa Ana, CA
Licensed Santa Ana commercial roofer (Lic. #1122623) serving Orange, LA & Riverside counties. Flat roofs, coatings, repa...
SKYZONE Roofing Santa Ana
Santa Ana, CA
SKYZONE Roofing Santa Ana provides commercial roofing installation, repair & maintenance for office, retail, industrial...
Custom Roofing Santa Ana
Santa Ana, CA
Custom Roofing Santa Ana provides commercial flat and low-slope roofing services — TPO, EPDM, mod-bit, coatings — for re...
Pacific LA Roofing Repair
Santa Ana, CA
Pacific LA Roofing Repair provides commercial roof repair in Santa Ana, CA, servicing TPO, EPDM, modified bitumen, and f...
One Stop Roofing
Santa Ana, CA
One Stop Roofing in Santa Ana, CA provides commercial roof repair, replacement & installation across Orange County and L...
Barry’s Roof's LLC
Santa Ana, CA
Barry's Roofs LLC provides commercial roofing installation, repair & maintenance in Santa Ana, CA — serving industrial,...
Luis Mendoza Roofing
Santa Ana, CA
Luis Mendoza Roofing provides commercial TPO, EPDM, and metal roofing for Santa Ana area office, retail, and multifamily...
HD Roofs, Inc
Santa Ana, CA
HD Roofs, Inc. — licensed C-39 contractor in Santa Ana offering commercial roof replacement, maintenance, inspections &...
New Village Roofing
Santa Ana, CA
New Village Roofing in Santa Ana, CA offers TPO, modified bitumen, coatings & metal roofing for commercial & multifamily...
Premium Roofing Systems
Santa Ana, CA
GAF Master Elite certified commercial roofer serving Santa Ana & OC. Repair, replacement, maintenance plans, and energy-...
Pacific Coast Roofing INC.
Santa Ana, CA
Pacific Coast Roofing Inc. in Santa Ana handles commercial TPO, coatings, metal & restoration across Orange County, LA C...
What to Expect from Waterproofing
Initial consultation and site assessment
Leak-source diagnosis (not just the visible interior stain)
Written proposal with detailed scope of work
Repair matched to your existing system to protect the warranty
Final walkthrough and documentation
Waterproofing Pricing in Santa Ana
Pricing varies by contractor and project scope
Request quotes from multiple contractors to compare pricing. Factors that affect cost include system size, building type, equipment brand, warranty terms, and urgency. Always ask for an itemized written estimate before authorizing work.
Get free quotes from Santa Ana contractorsRelated Repair Services in Santa Ana
Frequently Asked Questions — Waterproofing in Santa Ana
How much does waterproofing cost in Santa Ana, CA?
Waterproofing costs in Santa Ana vary based on system size, building type, and scope. Request quotes from multiple contractors through My Roofing Tech to compare pricing. Always ask for itemized written estimates before authorizing any work.
How do I choose the best waterproofing contractor in Santa Ana?
Look for contractors with specific experience in commercial roofing (not just residential). Verify their state license, insurance, and bonding, and confirm they're certified and experienced with your roof system. Check reviews from similar commercial properties. Ask about their workmanship warranty and their typical response time for follow-up issues.
How long does waterproofing typically take?
The timeline depends on the size and complexity of your roof system and the scope of work. Simple repairs often complete in a few hours. Larger installations and replacements may take several days to a few weeks. Emergency service typically stabilizes the problem within hours even when the permanent fix requires returning with materials.
Is waterproofing covered by building insurance?
Generally, sudden storm or accidental damage may be covered by commercial property insurance, while gradual wear and deferred-maintenance issues are not. Contact your insurance provider and ask specifically about coverage for your roof system. A documented inspection report strengthens any claim you file.