Commercial flat-roof systems and TPO/EPDM repairs for Modesto. 25 minutes from our Delhi office.
About This Service
Reviewed by Mario Espindola, Founder & GAF Master Elite Installer · Updated
Commercial roofs in Modesto face the same harsh weather as homes. Think offices, retail, warehouses, and farm buildings. They add a twist. Flat or low-slope decks need planned drainage. You can not guess.
For Modesto commercial properties we install TPO single-ply membrane, standing-seam metal, and elastomeric coatings. Active leak? Our Modesto emergency roof team responds same-day.
We plan commercial roof work to keep your doors open. Early starts. Weekend windows. Phased install on big buildings. Whatever your week needs.
Three Central Valley offices serve Modesto
Our Delhi HQ is 20 min from Modesto. Plus two family-owned sister brands. DeHart Roofing in downtown Turlock. NuShake Roofing in Ripon. Same family, three local crews, one shared network. Flat-rate pricing. Maker warranties from Owens Corning and GAF. City of Modesto permits handled by our team.
Local Roofing Knowledge
Six things you should know about commercial roofing in Stanislaus County.
How We Fix It
Modesto commercial buildings need the right roof systems. Built for low slope. Built for drainage. Built for 30+ year life.
Energy-good white membrane. UV-reflective, heat-welded seams, 20-30 year maker warranties.
Flat roofing servicesStanding seam and through-fastened panels. For warehouses, retail, and farm buildings.
Metal roofing optionsRestore aging commercial roofs with elastomeric or silicone coatings. Adds 10-15 years of life.
Roof coating systemsPricing
Real ranges from real projects. Your final price depends on roof size, pitch, material, deck shape, and access.
Roof Repair
Per project · flat-rate
Roof Replacement
Full tear-off & re-roof
Commercial Roofing
Per project · system-specific
See our roof repair cost guide for the full breakdown.
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Modesto roofing economics
Modesto has its own roofing economics. Stanislaus County permits issue in 3-5 business days. Cost runs $280-$420. The real price driver is neighborhood. McHenry-corridor 1980s tract homes need basic asphalt shingle replacement. Budget $9,500-$18,000 for a 2,000 sq ft home. Village One and the Tully Road area lean newer. Most are 1990s-2010s with concrete tile. Tile runs $14,000-$26,000. Tile underlayment needs a full tear-down to deck. It also needs heavier supports.
Old Modesto areas like College Area and La Loma hide 1900-1940 stock. These are Craftsman and Spanish-style homes. They have original 1x sheathing. Decking swap-out is common at $3-$6 per square foot. Budget an extra $2,500-$5,500 on top of the base re-roof. We pull 4-6 sample boards before quoting. That keeps the line item firm. Briggsmore corridor commercial buildings are mostly flat-roof TPO. Commercial pricing follows other rules. We cover those on our commercial roofing page. License #749551, since 1996.
Local detail · Commercial Roofing in Modesto
Modesto commercial roofing covers three big zones. The McHenry-Briggsmore retail corridor. Downtown mixed-use. The industrial parks along Highway 99. Our commercial work in Stanislaus County covers 220+ buildings since 2020 alone. Sizes run from 4,000 sq ft strip-center re-roofs to 60,000 sq ft warehouse coatings. Title 24 compliance is standard. So are NDL warranties. So is after-hours scheduling.
FAQ
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Talk to a senior estimator about your project. No pressure. No scripts.
Project Gallery
Before-and-after photos. Real jobs we did in 2025-2026 across the region.
Learn More
Free in-depth resources from our 30+ years across the Central Valley.
More in Modesto
Already a commercial roofing customer? We handle every other roofing need for Modesto homes. From emergency leaks to full re-roofs.
Leaks, missing shingles, flashing — fast diagnosis with flat-rate pricing.
Learn moreFull tear-off and re-roof with maker-backed warranties.
Learn moreAsphalt shingles, architectural and impact-rated options for tract homes.
Learn moreAnnual inspection, debris clearing, and securing tune-ups.
Learn moreStanding seam and stone-coated steel — new look, 50-year life.
Learn moreNo-obligation on-site assessment with photos — usually within 48 hours.
Schedule free inspectionLooking for more?
Browse our full catalog of services and the cities we cover.
Nearby
We serve commercial roofing clients across Stanislaus County. Plus the wider region.
Central Valley Service Area
Stanislaus, Merced, San Joaquin, Alameda, Contra Costa, Sacramento & surrounding counties.
Systems & Makers
Each maker has its own membrane mix, warranty tiers, and detail kits. We match the system to how the building is used. No single brand fits every job. We pick what fits yours.
Insulation matters as much as the membrane. For Modesto re-roofs, the standard is rigid foam insulation (polyiso) insulation board. It meets Title 24 R-value rules. We mechanically attach or fully adhere it. The choice depends on building height and wind. EPS (expanded polystyrene) and XPS (extruded polystyrene) work for some uses. These include below the membrane or at the edges.
For re-roofs over 50% of the deck, we draw up engineered plans. The California Building Code requires them. We file them with the city. They are part of every permit.
In-Depth Guide
Commercial roofs protect millions in gear and stock. The right system handles foot traffic. It supports HVAC mounts. It drains pooled water. Home roofs never see these loads. For Modesto sites, the math matters more. The Central Valley climate is hard on roofs. Summers top 105°F. UV is strong. Farm dust is heavy. All of it cuts roof life. Add winter tule fog. Add the rare Pacific storm. The result is one of California’s toughest roof climates.
Econo Roofing has worked on Modesto commercial roofing jobs since 1996. Our crews have logged the top failures. The biggest issue is seam splits on aging single-ply membranes. We also see pooled water near drains. Other common problems are blisters in modified bitumen. We see torn flashing at HVAC mounts. We see granule loss on tar surfaces. Each one has a known cause. Each has a known fix. But you must spot the cause first. A repair that hides the symptom will fail in months.
Pricing for commercial roofing in Modesto runs $8 to $15 per square foot. We are OC Platinum Preferred and GAF Master Elite. We are the only contractor in Stanislaus County and Merced County to hold both. That lets us offer maker-backed warranties most local roofers can not match. Owens Corning Platinum Protection covers up to 50 years. It is non-prorated. It includes labor. GAF Golden Pledge gives 50 years on products. Plus 25 years on labor. Both warranties are saved for top-tier certified pros.
Good commercial roofing starts with the right diagnosis. The wrong call leads to bad work. It wastes money. It shortens roof life. Our Modesto approach is simple. We pick a system that fits your loads, traffic, and warranty needs. We log each job with photos and written reports. License #749551, since 1996. Check our reviews on Google, BBB, and GuildQuality.
What to expect
Every commercial roofing job in Modesto follows the same steps. We start with a free on-site check. Our trained inspector walks the whole roof. We check all flashing, vents, valleys, and pipe boots. We also look at the attic for moisture. We log the visit with photos. We send a written report within 24 hours. No pressure. No hard sell. If your roof is healthy, we say so in writing.
Once you sign off, we set the dates. Modesto permits go through the local building office. We pull every permit. We book every required check. We handle all the paperwork. You never deal with the permit office. Most jobs in Modesto take one to three days. The time depends on size and shape. We watch the weather. We move the date if rain is coming. We cover plants with tarps. We clean up each day.
Materials matter. We install only maker-certified products. These come from Owens Corning, GAF, CertainTeed, and other top brands. As OC Platinum Preferred, we install Owens Corning Duration shingles. We use Total Protection parts. As GAF Master Elite, we install Timberline HDZ. We use the full Weather Stopper system. As CertainTeed Select ShingleMaster pros, we install Landmark shingles and the 5-Star system.
After install, we file every warranty with the maker within 30 days. We send you copies of the warranty papers. We send photos of the finished work. We also send a written workmanship warranty. Mario Espindola reviews each scope. He checks the final work himself. Three decades of Modesto commercial roofing work. Three offices in Delhi, Ripon, and Turlock. One phone number for it all: (209) 668-6222.
Materials & methods
The materials we install are not the cheapest. That is by design. As OC Platinum Preferred, we install Owens Corning Duration shingles. We add Total Protection parts. We use the full OC trim line. Together, these qualify your roof for the Platinum Protection Limited Warranty. As GAF Master Elite, we install Timberline HDZ shingles. We use the Weather Stopper system. We use the GAF parts that unlock the Golden Pledge warranty. As CertainTeed Select ShingleMaster pros, we install Landmark shingles and the 5-Star system. These top-tier warranties are not open to roofers without these badges.
Our methods come from 30+ years of Modesto field work. Every job starts with an attic vent check. The attic can add or cut 20 to 30% of a roof’s life. Weak ridge or soffit vents cook shingles from below. We measure air flow. We add vents as needed. We install ice and water shield in valleys. We seal every roof opening. We do this in every climate zone. We use synthetic underlayment rated for high heat. We replace bad deck wood. We never go over it. We seal every fastener with maker-approved sealants. None of this is required by code. All of it adds years and protects your warranty.
The crew matters as much as the materials. Our Modesto crews are W-2 staff of Econo Roofing. We do not use subcontractors. Each crew member finishes yearly GAF Master Elite training. They also earn Owens Corning install badges. Mario reviews every scope before work starts. He checks every finished roof before the crew leaves. We carry $1 million in general liability. We carry full workers comp. License #749551, verifiable at CSLB.ca.gov. Family-owned since 1996. Same family. Same standards on every Modesto job.
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