Santa Rosa Based, Serving Sonoma County 
(707) 540-2592 
Mon-Fri: 7AM–5PM | Sat: 8AM–2PM | Sun: Closed
Roofing Contractor in Petaluma, CA
Mario Contreras Roofing has been serving homeowners and business owners in Petaluma for over 20 years. Whether you are in the historic Victorian homes of downtown Petaluma, the newer builds out near Corona Road, or anywhere in between — we know the roofing conditions in this area and we bring the same honest work to every job.
From roof repair and roof replacement to roof inspections and gutter installation, we handle the full scope of roofing work for Petaluma properties — residential and commercial — with clear communication and no pressure.
- 20+ Years roofing homes and businesses throughout Sonoma County including Petaluma.
- Lic. Fully licensed and insured in California on every job we take.
- ES/EN Bilingual service in English and Spanish for Petaluma homeowners.
Why Petaluma Homeowners Choose Mario Contreras Roofing
Petaluma gets a real mix of weather — hot dry summers, wet winters, and coastal fog that rolls in off the bay. That combination puts consistent stress on roofing systems and means the quality of installation and materials matters a lot. Mario Contreras Roofing understands these local conditions and builds roofs to handle them.
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Honest Estimates
We tell Petaluma homeowners exactly what their roof needs — no inflated scopes, no manufactured urgency. If a repair is the right call, that is what we recommend.
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Local Experience
We have been working roofs in this part of Sonoma County for over 20 years. We know the neighborhoods, the housing stock, and the conditions that affect roofs here.
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Licensed and Insured
Every job in Petaluma is covered. Mario Contreras Roofing is fully licensed and insured in California so you are protected from start to finish.
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Clean Job Sites
We protect your property while we work and do a full cleanup before we leave. No leftover debris, no shortcuts on the finish.
Roof Repair, Replacement, and More for Petaluma Homes
Petaluma's housing stock ranges from century-old Victorians in the downtown historic district to mid-century homes in the Westside neighborhoods and newer construction east of Highway 101. Each era of home comes with its own roofing challenges — older homes often have multiple layers of material and aging flashings, while newer homes can have installation issues that show up years later.
Whatever the age or style of your Petaluma home, Mario Contreras Roofing handles the work with the same attention to detail and honest approach on every job.
- Roof repair for leaks, damaged shingles, flashing issues, and worn areas
- Roof replacement for aging or failing roof systems
- Roof inspection to assess condition and catch problems early
- Composition shingle, tile, and metal roofing options available
- Flat roof and TPO systems for commercial properties in Petaluma
- Gutter installation and gutter repair to protect your roofline
Roofing Questions from Petaluma Homeowners
Common questions we hear from homeowners in Petaluma before they get started with a roofing project.
How does Petaluma's coastal fog affect my roof?
The marine layer that rolls in from San Pablo Bay keeps Petaluma roofs damp for longer stretches than inland areas. That persistent moisture accelerates the breakdown of older shingles, promotes moss and algae growth, and can work into compromised flashings over time. If your roof is 15 years or older, a roof inspection is a smart way to catch moisture-related issues before they become leaks.
Do you work on the older Victorian homes in downtown Petaluma?
Yes. Older homes in Petaluma's historic district often have multiple layers of roofing material, original wood decking, and aging flashings around chimneys and dormers. We assess each situation carefully before recommending a repair or full replacement. If the deck is solid and only certain areas are failing, we can often address it with targeted repairs rather than a full tear-off.
Do you serve areas outside Petaluma?
Yes. Mario Contreras Roofing is based in Santa Rosa and serves all of Sonoma County. We regularly work in Rohnert Park, Sonoma, Cotati, Sebastopol, and throughout the county. Call us at (707) 540-2592 to confirm we cover your area.
Roofing Contractor Serving Petaluma and All of Sonoma County
Based in Santa Rosa, Mario Contreras Roofing serves homeowners and business owners throughout Sonoma County. Wherever you are, we bring the same honest work and dependable service.
Protect Your Home With Reliable Roofing Services