San Francisco & Bay Area

Commercial
Roofing
Specialists

Gatana Roofing handles commercial roofing projects of all sizes across San Francisco and the Bay Area — from inspections and repairs to full system replacements. Licensed, insured, and bonded.

Get a Free Estimate Our Services
19+
Years Experience
500+
Projects Complete
100%
Licensed & Insured
Licensed & Insured
Free Estimates
Bonded Contractor
Commercial Focus
Part of Gatana Construction
What We Do

Commercial
Roofing
Solutions

Gatana Roofing delivers complete commercial roofing services across the Bay Area — from flat roof systems on warehouses and retail centers to complex multi-story installations. Every project is backed by professional-grade materials, certified installation, and lasting warranties.

01

Flat & Low-Slope Roofing

TPO, EPDM, and modified bitumen systems for commercial buildings, warehouses, and industrial facilities.
02

Roof Inspection & Assessment

Comprehensive assessments, moisture detection, and detailed reporting to guide your capital planning.
03

Roof Repair & Maintenance

Emergency leak response, scheduled maintenance programs, and targeted repairs to extend roof lifespan.
04

Roof Coatings & Waterproofing

Reflective coatings and waterproofing systems that extend life, cut energy costs, and seal penetrations.
05

Drainage & Gutter Systems

Commercial-scale drainage solutions, scupper installation, and gutter systems engineered for heavy flow.
06

New Construction Roofing

Ground-up commercial roofing coordinated with GC timelines — turnkey installation from framing to final membrane.
Why Gatana

Built on Expertise,
Backed by Results

Commercial roofing — angular metal roof structure against blue sky
01

19+ Years in the Field

Founder Georgio Atana brings nearly two decades of hands-on construction experience across Bay Area commercial and multi-unit properties.

02

Part of Gatana Construction

As a division of Gatana Construction, we offer seamless coordination with other trades — envelope, waterproofing, and structural work all under one roof.

03

Licensed, Insured & Bonded

Fully licensed in California, bonded, and carrying comprehensive commercial liability insurance for total peace of mind on every project.

04

Serving SF & the Entire Bay Area

From San Francisco to the East Bay and Peninsula, our crews mobilize quickly for inspections, repairs, and full installations.

Systems We Install

Roofing Systems
for Every Building Type

TPO Membrane

Thermoplastic polyolefin — the industry standard for energy efficiency and durability on flat commercial roofs.

EPDM Rubber

Proven synthetic rubber membrane ideal for large commercial and industrial flat roof applications.

Modified Bitumen

Multi-ply asphalt systems offering superior waterproofing for demanding low-slope applications.

Metal Roofing

Standing seam and corrugated metal systems offering maximum longevity for commercial buildings.

Our Process

From Assessment
to Completion

01

Site Assessment

Free on-site inspection and condition report of your existing roof system.

02

Scope & Proposal

Detailed written proposal outlining system options, materials, and pricing.

03

Permitting

We handle all necessary permits and coordination with local authorities.

04

Installation

Professional installation minimizing disruption to your operations.

05

Final Inspection

Walk-through, documentation, and warranty package delivered to you.

Ready to Protect
Your Building?

We provide free site assessments for commercial properties across the Bay Area.

Schedule a Free Estimate