Commercial roofs fail at seams, drains, and equipment curbs. Roof By Tom inspects those first, then bids a repair or a new roof that matches how the building is actually used. Multi-family and light commercial get the same detailing as a larger flat roof: slope to the drains, flashing that survives foot traffic, and a schedule that works around tenants.
If this is the work your building needs, call (925) 488-1882 or send the form for a written estimate. There is no obligation.
Why commercial roofs leak at seams, drains, and HVAC curbs
Low-slope roofs hold water and take foot traffic from HVAC techs. Open seams, clogged drains, and cracked curb flashing are the usual paths. We find the source, then weld or rebuild that detail instead of coating over a stain we have not explained.
TPO and modified roofing, in plain language
TPO is a white sheet roof that reflects inland heat and is heat-welded at the seams. Modified bitumen is a layered system that can be right on smaller or more complicated roofs. We inspect foam and older tar-and-gravel roofs before we recommend another layer or a tear-off. Tired or wet wood needs a tear-off, not another layer.
Working while the building stays open
Occupied buildings need a clear drop zone, a plan for the dumpster, and a sequence that does not shut the doors. We write that schedule into the estimate so managers and tenants know what to expect. You stay in the building while we work.
What commercial roofing includes
- TPO and layered modified systems
- Tear-off of failed older roofs
- HVAC curb and pipe flashing
- Low wall and side-wall flashing
- Drain and wall-outlet rebuilds
- A written schedule that works around tenants
Commercial roofing questions
Can you work while the building stays open?+
Yes. We plan access, debris, and the work zone so tenants and staff can keep using the building. You get the schedule in writing before we start.
What is TPO, and is it right for my building?+
TPO is a white sheet roof that is heat-welded at the seams and reflects heat. A layered modified system can be right on a smaller or more complicated roof. We inspect first and recommend the system that fits the structure.
Why does my commercial roof leak around the HVAC unit?+
Foot traffic and standing water break curb flashing and seams. We track the leak to that detail, then rebuild it so the patch ties into the existing roof instead of coating over a mystery stain.
Do commercial replacements need a permit?+
Most Bay Area cities require a permit for a full replacement. We pull it when the city asks and build to the inspection. Ask us about your address when you request the estimate.
How do I get a free commercial roof estimate?+
Call (925) 488-1882 or send the form. We inspect seams, drains, and equipment curbs, then send a written estimate. There is no obligation.