Commercial Roofing
We've been installing and repairing commercial roofs across Novato since 2007. From flat roofs to metal systems, we handle it all with premium materials and a local crew that cares.
Meet Your Roofers
We’re North Bay Roofing Co., a local crew that’s been working commercial roofs across Novato and the North Bay since 2007. From flat roofs on Grant Avenue to TPO systems near downtown, we’ve done it all. No sales pitches, just honest work from guys who show up.
full liability and workers comp coverage on every job.
25-Year Workmanship Warranty on all commercial replacements, backed by materials from Malarkey, CertainTeed, GAF, and Owens Corning.
we’ve helped businesses on Redwood Boulevard and beyond file fast insurance claims and get back to work.
A+ BBB Rating and 4.9 Google Score from 120+ reviews – real feedback from local commercial property owners.
If your Novato commercial property's roof is leaking or showing wear, you need a crew that knows flat roofs, TPO, and built-up systems inside out. We've been handling commercial roofing across the North Bay since 2007, working with Malarkey and GAF materials. No runaround, just solid work from licensed pros (CA CSLB #1043871).
When you book with us, you get more than a new roof—you get a full-service partnership from a crew that's been working Novato and the North Bay since 2007. Here's exactly what's delivered.
We start with a thorough walkthrough of your commercial property, checking every seam, flashing, and drain. No guesswork—just a detailed quote you can trust.
We use Malarkey, CertainTeed, GAF, Owens Corning, IKO, and Atlas—real manufacturers with proven warranties. Your roof gets the same quality we'd put on our own shop.
Old layers come off completely. We haul everything away and leave your site clean—no debris, no mess, no shortcuts.
Our licensed team (CA CSLB #1043871) handles every step, from underlayment to final flashing. We've been roofing Novato's commercial buildings since 2007—experience you can see.
We stand behind our work with a 25-year warranty on all replacements. If something goes wrong, we fix it—no questions asked.
We sweep, magnet for nails, and review every detail with you before we leave. Your property stays safe and looking sharp.
We know a commercial roof replacement is a big investment for your business. That's why we've honed a straightforward, four-step process that keeps you informed and minimizes downtime.
— We visit your property at 1234 Grant Ave or anywhere in Novato, assess your roof's condition, take measurements, and discuss your options with Malarkey, GAF, or Owens Corning materials. You get a detailed, no-obligation quote within 24 hours.</li>
We walk you through our premium shingle, TPO, or modified bitumen options, explain warranties, and answer every question. Once you're ready, we finalize the contract and schedule your project around your business hours.</li>
— Our crew arrives on time, sets up containment and debris removal, and works methodically from tear-off to underlayment to final flashing. We use CertainTeed and IKO systems for durability, and we clean up every day before we leave.</li>
We inspect every seam, fastener, and penetration together with you. You receive our 25-year workmanship warranty, manufacturer warranties, and a digital photo record of the completed job.</li>
We've seen the results of DIY jobs and cut-rate crews around Novato. Here's how we stack up on real commercial roofing.
| Factor | DIY | Cheap Competitor | North Bay Roofing Co. |
|---|---|---|---|
| Materials | Big-box store, limited warranty | Bargain brands, no manufacturer support | Malarkey, CertainTeed, GAF, Owens Corning, IKO, Atlas — full warranty |
| Workmanship | No guarantee | 30-day warranty, if any | 25-Year Workmanship Warranty on all replacements |
| Licensing & Insurance | None | Often unlicensed or expired | CA CSLB #1043871, full liability & workers comp |
| Experience | Zero | Few years, no local track record | 19 Years in North Bay, locally owned since 2007 |
| Storm & Insurance Help | No help | Limited, slow response | Storm damage specialists, fast insurance assistance |
| Trust Signals | None | No BBB rating, few reviews | A+ BBB, 4.9 Google rating from 120+ reviews |
| Cost | Low upfront, high risk of leaks | Cheap price, hidden fees, poor results | Fair, transparent pricing with free estimate |
| Get Started | Rent tools, watch a video | Call a number, hope they show | Get Your Free Roof Estimate or Call Now for Fast Help |
Here's a recent job we wrapped up on Redwood Blvd. in Novato. It shows how we handle commercial projects from start to finish.
We get a lot of questions about commercial roofing in Novato. Here are answers straight from our crew—no fluff, just the details you need to make a smart decision.
Cost depends on roof size, material, and complexity. For a flat 2,000 sq ft TPO roof, expect $8,000–$12,000. We give free estimates with no hidden fees.
We install TPO, PVC, modified bitumen, and metal roofing from Malarkey, CertainTeed, GAF, and Owens Corning. Each has pros for durability and energy efficiency.
Most replacements take 3–7 days, depending on weather and roof size. We work around your business hours to minimize downtime.
Yes, we fix leaks, punctures, and storm damage fast. Our team responds within 24 hours for emergency repairs in Novato and the North Bay.
Absolutely. We're CA CSLB #1043871, fully insured with liability and workers comp, and we back every job with a 25-year workmanship warranty.
Yes, we're storm damage specialists. We'll inspect your roof, document damage, and work directly with your insurance adjuster to speed up the claim.
We serve all of Novato—including neighborhoods like Ignacio, Hamilton, and downtown—plus San Rafael, Petaluma, and the entire North Bay.
Trust & Expertise
We're a locally owned crew with 19 years of hands-on experience roofing Novato and the North Bay. Our license (CA CSLB #1043871) and 4.9 Google rating back every job.
Final pricing depends on roof size, slope, access, materials, and condition of underlying decking. Ranges below are typical for a single-family home.
| Service | Typical Range | Unit |
|---|---|---|
| Roof Replacement | $9,000–$28,000 | per single-family home |
| Roof Repair | $450–$2,800 | per repair |
| Storm Damage Repair | $800–$12,000 | per claim |
| New Roof Installation | $9,500–$30,000 | per single-family home |
| Metal Roofing | $14,000–$42,000 | per single-family home |
| Shingle Roofing | $8,500–$24,000 | per single-family home |
| Flat Roofing | $6–$14 | per square foot installed |
| Gutter Installation | $850–$3,400 | per home (includes downspouts) |
| Roof Inspection | $0–$450 | per inspection (often free with replacement) |
| Emergency Roof Repair | $600–$3,500 | per emergency call |
| Skylight Installation | $950–$3,800 | per skylight installed |
Transparent Pricing for Your Roof
We know cost is top of mind. Every commercial roof is different, so we give you a clear, line-item estimate after a free on-site inspection. No surprises, no hidden fees.
we install and repair all types, priced by square footage and material grade.
Minor repairs start around $500; full replacements typically range from $5,000 to $25,000 depending on size, access, and tear-off needs.
We include a 25-year workmanship warranty on all replacements, adding long-term value you can count on.
Estimates are based on typical Novato commercial projects. Your actual cost will depend on roof size, condition, and material choice. Call (844) 640-4622 for a free quote.
4.7 stars · 225+ verified reviews
North Bay Roofing Co. replaced our 22-year-old shingle roof in two days flat. The crew was respectful of our landscaping, cleaned up every nail, and the GAF system they installed looks incredible. The price was fair and they filed the permit without us having to chase it. Will absolutely call them again.
After a winter storm tore off two sections of our flashing, North Bay Roofing Co. was on-site within 24 hours. They tarped the exposed decking that same afternoon, walked us through the insurance claim process, and had the permanent repair done by end of week. Honest estimates, no upsell pressure.
I called for a pre-purchase inspection on a home in Petaluma. The inspector found two soft spots the listing agent hadn't mentioned, documented everything with photos, and gave me a written repair estimate I could use in negotiations. Saved me thousands.
We've been installing and repairing commercial roofs across Novato since 2007. Let us give you a free, no-pressure estimate. Call us today — we're local, licensed, and ready to help.
CA CSLB #1043871 | Licensed, Insured & Bonded | Locally Owned & Operated
— Brian Castellano, Founder
Verify our license at www.cslb.ca.gov
225+ verified Google reviews · 4.7/5 average