Flat & Commercial Roofing in San Jose, CA
TPO, modified bitumen, and low-slope roofing for commercial and multi-unit properties.
About Our Flat & Commercial Roofing Service
Flat and low-slope roofs need different materials and detailing than a residential pitched roof. We install and repair TPO membrane, modified bitumen, and built-up roofing systems for South Bay commercial buildings, retail spaces, and multi-unit residential properties, with attention to drainage, seaming, and rooftop penetrations like HVAC curbs and vents where most flat-roof leaks actually start.
What's Included
Our Process
Commercial Roof Survey
We assess membrane condition, drainage, ponding areas, and every roof penetration (HVAC, vents, drains) since that's where most flat-roof leaks originate.
Scope & Quote
You get a detailed scope covering material, drainage corrections, and any penetration resealing needed, with a firm price before work starts.
Installation or Repair
New membrane is installed or existing roofing is repaired and resealed, with extra attention paid to seams and penetrations.
Drainage Test
We confirm water is draining correctly off the roof surface rather than pooling, which is the leading cause of flat-roof failure over time.
Why Flat & Commercial Roofing Matters
- Prevents costly interior damage to commercial and multi-unit spaces
- Corrects ponding water, the top cause of flat-roof failure
- Reduces emergency repair calls with proactive maintenance
- Energy-efficient membrane options lower cooling costs
- Minimizes business disruption with scheduled, efficient work
Frequently Asked Questions
Why does my flat roof keep leaking around the HVAC unit?
What's the difference between TPO and modified bitumen?
Do you offer maintenance plans for commercial buildings?
Flat & Commercial Roofing Service Areas
We provide flat & commercial roofing across San Jose and the South Bay, including:
Get a Free Quote
Same-day service available
Starting at
$6/sq ft
Based on membrane type, roof condition, and building size. Commercial properties quoted after an on-site survey.
Duration
1 - 5 days depending on roof size
Warranty
Manufacturer membrane warranty + 5-year workmanship warranty
Other Services
Why Choose Us
- Licensed & Insured
- Certified Roofing Crews
- Same-Day Service
- Free Estimates
- Workmanship Warranty
- South Bay Local