Port Costa Roofing Services
Port Costa Roofing & Maintenance provides residential and commercial roofing services throughout Port Costa and Grass Valley, Klamath River, March Air Reserve Base, Novato, San Mateo. Free estimates on every service listed here.
Roof Replacement
After tear-off, we always check decking and replace what's needed. Soft spots mean moisture intrusion. The old roof was leaking longer than you realized. We use 7/16" or 15/32" CDX plywood depending on rafter spacing. New decking costs $75-$120 per sheet installed. We only replace what's actually damaged.
Get a Free Quote →
Roof Repair
Emergency roof repairs in Port Costa within 24 hours for active leaks. We tarp the area to stop immediate water entry, then schedule the permanent fix. Weekend and holiday emergency service available. Call (877) 586-1316.
Get a Free Quote →
Storm Damage Repair
After a major storm in Port Costa, we mobilize quickly. Emergency tarping within 24 hours to prevent secondary water damage. Then a full damage inspection once conditions allow. We use drone photography on larger commercial roofs to document everything the adjuster needs.
Get a Free Quote →
New Roof Installation
New construction means we get to do everything right from scratch. No compromises, no working around someone else's mistakes. Ice and water shield where it belongs, properly lapped underlayment, correct nailing patterns, and ventilation sized to the space. That's a roof that lasts.
Get a Free Quote →
Metal Roofing
Color options in metal roofing are virtually unlimited. Matte black, charcoal, forest green, copper penny, barn red, slate blue. We order custom colors from Sheffield Metals and McElroy Metal with 40-year fade warranties. Your house, your style.
Get a Free Quote →
Shingle Roofing
Shingle color matters more than you think. Dark shingles absorb heat. Great for cold California winters, harder on cooling bills in summer. Lighter colors reflect heat. Algae-resistant granules prevent black streaking. We bring shingle samples to your Port Costa home so you can see them against your siding and trim.
Get a Free Quote →
Flat Roofing
PVC membrane for Port Costa restaurants, commercial kitchens, and facilities with rooftop grease exhaust or chemical exposure. PVC resists oils and animal fats that destroy TPO and EPDM membranes. We install IB Roof Systems and Duro-Last PVC with factory-fabricated accessories for watertight penetration details. Built-up roofing (BUR) uses 3 or 4 plies of fiberglass felt in hot asphalt with a gravel or cap sheet surface. Oldest proven flat roof system, with 30+ year service life in California. We still install BUR when the application calls for it.
Get a Free Quote →
Commercial Roofing
Need a commercial roof coating? Silicone coatings over existing TPO, EPDM, or metal extend life 10-15 years for a third of replacement cost. Not every roof qualifies. The existing membrane needs to be in decent shape. We core sample and moisture scan to verify before we recommend it.
Get a Free Quote →
Gutter Installation
Half-round copper gutters with round downspouts are the premium install for historic and high-end homes in Port Costa. We solder every joint on-site with 50/50 tin-lead solder. Copper weathers to a green patina in California's climate over 5-7 years. For modern aluminum installs, we use Spectra Metals .027 gauge seamless stock in 25+ color options with Raytec hidden hangers rated to 25 lbs per linear foot of combined debris and ice load.
Get a Free Quote →
Roof Inspection
After a storm, our inspection documents hail hits, wind damage, lifted shingles, and cracked components for your insurance claim. We take measurements, count damage per test square, and prepare a report your adjuster can use. Free for Port Costa homeowners. We only charge if you hire us for the repair.
Get a Free Quote →
Emergency Roof Repair
Storm, wind, hail, or fallen tree. We've handled every kind of roofing emergency in Port Costa. First priority is always preventing further water damage to your interior. Second priority is documentation for insurance. Third is the permanent fix.
Get a Free Quote →
Skylight Installation
We install three types of skylights: fixed (sealed, just for light), vented (opens for airflow. Great for bathrooms and kitchens), and tubular (flexible tube through the attic. For tight spaces where a standard skylight won't fit). Each serves a different purpose.
Get a Free Quote →