Roofing Contractor in Santa Rosa, CA

Mario Contreras Roofing has served Santa Rosa and Sonoma County homeowners and business owners for over 20 years. From roof replacement and repairs to gutters and skylights, we do the work right the first time — no pressure, no runaround.

• Commercial Roofing

  Durable roofing systems for commercial properties in Santa Rosa. We handle flat roofs, TPO, repairs, and full replacements for business owners across Sonoma County.

• Roof Repair

  Leaks, damaged shingles, flashing issues, and worn-out areas fixed fast. We find the source of the problem and repair it the right way so it does not come back.

• Roof Replacement

  When your roof is past its prime, we handle the full replacement — tear-off, prep, installation, and cleanup — with quality materials built to last through Sonoma County weather.

• Roof Inspection

  Not sure what condition your roof is in? We inspect it thoroughly, explain exactly what we find, and give you an honest recommendation — no upselling, no pressure.

• Gutter Service

  We install and repair gutters to keep water draining properly away from your roof and foundation. Clean drainage protects your home year-round.

• Skylight Contractor

  We install and seal skylights that let light in without letting water in. Properly installed skylights protect your home and add value year-round.

• 

  Mario showed up when he said he would, gave us a fair price, and the crew did excellent work. They cleaned up every day and the new roof looks great. Would not hesitate to call them again.

  Sarah M. Santa Rosa Homeowner
• 

  We had a leak that two other roofers could not figure out. Mario found it on the first visit, explained exactly what was causing it, and fixed it the same week. Honest and skilled — that is rare.

  David R. Sonoma County Homeowner
• 

  I appreciated that Mario did not try to sell me a new roof when I only needed repairs. He was upfront about what was needed, the price was fair, and the work was done well. Very happy with the experience.

  Jessica T. Santa Rosa Homeowner

• What roofing services does Mario Contreras Roofing offer?

  We handle residential roofing, commercial roofing, roof replacement, roof repair, roof installation, roof inspections, roof insulation, composition shingle roofing, tile roofing, metal roofing, flat roofs, gutter service, and skylight contractor services in Santa Rosa and Sonoma County.

• What areas do you serve?

  We are based in Santa Rosa and serve all of Sonoma County. That includes Petaluma, Rohnert Park, Windsor, Healdsburg, Sebastopol, Sonoma, Cotati, Cloverdale, Guerneville, and Glen Ellen. Within Santa Rosa we regularly work in Fountaingrove, Rincon Valley, Bennett Valley, Skyhawk, and Larkfield-Wikiup.

• How do I know if I need a roof repair or a full replacement?

  It depends on the age of the roof, how widespread the damage is, and the condition of the decking underneath. A roof that is under 15 years old with isolated damage can usually be repaired. A roof that is 20 to 30 years old with widespread wear, granule loss, or multiple leaks is typically a better candidate for full replacement. We will inspect your roof, show you what we find, and give you an honest recommendation — no pressure either way.

• How long does a roof replacement take in Santa Rosa?

  Most residential roof replacements in Santa Rosa take one to three days depending on the size of the home, the roofing material, and the condition of the existing deck. We do a full tear-off, inspect the decking, and install the new system in one continuous process. We will give you a realistic timeline before we start so you know exactly what to expect.

• Are you licensed and insured?

  Yes. Mario Contreras Roofing is fully licensed and insured in California. Every job we take in Santa Rosa and across Sonoma County is covered from start to finish. We are also bilingual — Mario and his crew communicate clearly in both English and Spanish throughout the project.

• Do you offer free roofing estimates?

  Yes. We offer free estimates for all roofing work in Santa Rosa and Sonoma County. We come out, inspect the roof, and walk you through what we find before giving you a clear price. No obligation, no pressure. Call us at (707) 540-2592 or fill out our contact form to get started.

• How does Santa Rosa's climate affect my roof?

  Santa Rosa gets hot, dry summers and wet winters — that seasonal swing puts real stress on roofing systems. UV exposure in summer dries out shingles and causes cracking, while heavy winter rain can find its way into any compromised flashing, seam, or worn area. Neighborhoods like Fountaingrove and the hillside areas also deal with wind exposure that accelerates wear. Regular inspections every few years help catch small issues before the rainy season turns them into bigger problems.