Commercial & Industrial Roofing · St. Louis, MO
Licensed & Insured
24/7 Emergency Response
Free Roof Assessments
Insurance Claims Help
From single-ply flat roofs to emergency repairs, property owners across Greater St. Louis count on San Juan’s to protect their buildings.
Six commercial roofing systems, installed and maintained by one certified team.
TPO & PVC Single-Ply
Energy-efficient flat & low-slope roofs
EPDM Rubber Roofing
Low-maintenance rubber membranes
Metal Roofing Systems
Durable, weather-tight metal
Modified Bitumen & BUR
Rugged multi-layer waterproofing
Roof Coatings & Restoration
Extend roof life, delay replacement
Repairs & Emergency Service
Fast repairs, 24/7 storm response
From the first inspection to the final walkthrough, we keep your project on schedule, on budget, and clearly communicated at every step.
01
Inspection & Roof Assessment
Our certified team inspects your commercial roof, documents the condition with detailed reporting, and identifies exactly what your building needs.
02
Detailed Estimate & Insurance Coordination
We provide a clear, itemized estimate and coordinate directly with your insurance carrier to streamline claims and protect your bottom line.
03
Professional Installation
Our licensed, insured crews install your TPO, EPDM, metal, or coating system using proven methods that minimize disruption to your business.
04
Final Walkthrough & Workmanship Warranty
We walk the completed roof with you, confirm every detail meets our standards, and back our craftsmanship with a workmanship warranty for lasting peace of mind.
Hear from the property owners and managers we have helped protect across the St. Louis metro.
“A storm opened up a section of our office roof overnight, and San Juan’s had a crew on site fast. They handled the emergency repair, walked us through the insurance claim, and kept the building running. Calm, professional, and exactly what we needed.”
Karen Mitchell
Property Manager, St. Louis
“We had recurring leaks across an aging TPO roof on our retail center. Their team inspected everything, explained the options clearly, and completed the work on schedule with no surprises. The crews were licensed, organized, and easy to coordinate with.”
David Reyes
Facilities Director, Chesterfield
“San Juan’s restored our flat commercial roof and saved us from a full replacement. They were responsive, fair, and respectful of our hours so we never had to close. I’d recommend them to any business owner in the area.”
Linda Foster
Retail Owner, Webster Groves
Tell us about your property and a certified, licensed and insured specialist will follow up fast with a no-obligation assessment. Available 24/7 for repairs, restorations, and storm emergencies across Greater St. Louis.
No-obligation, free roof assessment
Certified, licensed and insured crews
Available 24/7 for storm emergencies
Contact Details
What commercial roofing systems do you install and repair?
We work across all major commercial systems, including TPO and PVC single-ply, EPDM rubber, metal roofing, and modified bitumen or built-up (BUR). We also handle roof coatings and restoration plus targeted repairs, so we can match the right solution to your building and budget.
Can you work around our business hours and minimize disruption?
Yes. We schedule around your operating hours, stage materials to keep entrances and parking accessible, and keep the site clean so your tenants, staff, and customers stay safe. Our goal is to protect your building without interrupting the work you do inside it.
Do you handle insurance claims for commercial roof damage?
We do. Our team documents the damage, helps you understand your coverage, and works directly with your insurer to support the claim. That assistance takes pressure off your staff and helps the process move forward with fewer surprises.
How fast can you respond to an emergency roof leak?
We offer 24/7 emergency response across Greater St. Louis. When a leak or storm threatens your property, call (636) 415-9188 and we will move quickly to stop the water, protect your interior, and prevent further damage.
Do you offer commercial roof inspections and maintenance?
Yes. We provide thorough roof inspections and ongoing maintenance to catch small issues before they become costly failures. Regular service helps extend the life of your roof and keeps your property protected year round.
What areas do you serve?
We serve Greater St. Louis, St. Charles County, and Jefferson County, including Arnold, Oakville, Webster Groves, Chesterfield, Cottleville, Clayton, and Saint Peters. Our crews are licensed, insured, and bilingual in English and Spanish for clear communication on every project.