Flat roofs on commercial buildings deal with challenges residential roofs don't: rooftop HVAC units, exhaust fans, plumbing penetrations, satellite equipment, foot traffic, and ponding water. Mill Valley Roofing has the training and equipment to handle all of it across Mill Valley.
Commercial roof coatings can extend the life of an existing roof by 10-15 years for a fraction of replacement cost. Silicone and acrylic coatings over existing TPO, EPDM, or metal substrates. Not every roof qualifies. We core sample and moisture scan before recommending a coating.
Call (415) 376-6078 for a free commercial roof assessment. We inspect the membrane, flashings, drainage, penetrations, and overall condition. You get a written report with photos and our honest recommendation, repair, coat, or replace.
Our Commercial Roofing Process
Building Inspection
Before we recommend anything, we inspect everything. Membrane, seams, flashings, drains, penetrations, parapet walls, and rooftop equipment curbs. Core samples test for trapped moisture in the insulation. Honest assessment. No scare tactics.
Project Proposal
We present options when they exist: repair vs. replace, TPO vs. PVC, 15-year vs. 20-year warranty. Each option is priced so you can make an informed decision based on your budget and building plans.
Professional Installation
Factory-trained crews using proper equipment, hot-air welders for TPO/PVC, torch equipment for modified bitumen, and adhesive systems for EPDM. Every seam, flashing, and penetration detail inspected before we leave.
Warranty & Maintenance
Manufacturer warranty registered upon completion, 15-20 year coverage depending on system and build-up. We offer maintenance contracts to keep your warranty valid and your roof performing for its full life span.
Why Choose Mill Valley Roofing for Commercial Roofing?
Minimal Business Disruption
We schedule around your operations. Phased installation, noise management, and debris containment. Your tenants and customers barely know we're there.
Emergency Response
Commercial roof leaks damage inventory, equipment, and operations. Emergency response within 24 hours for active leaks on commercial buildings in Mill Valley.
Manufacturer Certified
Certified installer for major commercial membrane manufacturers including Carlisle, Firestone, GAF, and Johns Manville. Factory training and warranty authorization.
Licensed & Insured
Fully licensed commercial contractor in CA. $2M general liability, workers' comp on every crew member. Your property and your business are protected.