10 Best Roofers in San Jose, CA

How Much Does a New Roof Cost in San Jose?

Cost planning is important when tackling a project as big as replacing your roof. Below, we outline the average price range for replacing a roof on a 1,500 square foot home in San Jose. We also outline price differences between popular roof materials.

How To Choose a Roofing Company

Roof installation is a big home improvement project that can cost an amount in the tens of thousands range in the end. It's crucial to research and find the most skilled and reliable roofing professional for the job. Here are the key factors to consider when choosing a roofing contractor.

• Warranties and guarantees: Reputable roofers provide robust guarantees from shingle manufacturers which protect shingles for over 30 years and workmanship warranties for five or more years. Use caution with roofers offering less coverage than that.
• Responsiveness and communication: Your contractor should communicate consistently throughout, from the quote to project completion. A representative should answer questions promptly and handle any issues while working.
• Roofing materials and products: Reputable manufacturers produce durable roofing materials that can withstand San Jose's weather for years. Steer clear of contractors pushing low-cost or generic products. Check out shingle samples before making a decision.
• Experience and credentials: Providers with a decade or more of experience show stability and expertise. Before hiring, verify that a provider has appropriate licenses, bonding, and insurance. Ask about professional certifications, such as those from the National Roofing Contractors Association.
• References and reviews: Vet companies thoroughly by verifying on review sites such as Google, Yelp, or the Better Business Bureau (BBB) that they have consistently positive feedback. You can also request recent local references to learn more.
• Detailed written estimate: Trustworthy roofing contractors will give you a comprehensive written estimate. This estimate should outline the complete work plan, materials required, and total price without surprise fees. Steer clear of unclear bids, or ones that seem much too low or high.

Signs Your Roof Needs Repair or Replacement

While the average homeowner may not spend a lot of time thinking about their roof, a roof plays an important role in keeping a home safe and secure. Keep alert for these signs that your roof might need professional attention.

Roof Age

Your roof's age and material are key factors. Asphalt shingles, the most popular residential roofing material, normally last about 20 to 25 years before needing to be replaced. Schedule a professional inspection if your roof is approaching or past this lifespan to determine if it needs to be replaced.

Leaks or Water Stains in Your Home

One of the clearest signs of a roof issue is leaking. Stains on ceilings, insulation, and walls — or in your attic — usually indicate that water is seeping through damaged or worn shingles. Don't ignore small leaks, because even these can encourage mold growth and roof deterioration.

Exposed Roof Decking Underneath Shingles

If you can see roof sheathing or decking under shingles, it means that those shingles are curling or losing their seal. This means it's time for replacement. Shingles need to lie flat to prevent water from leaking into your home.

Cracked, Broken, or Missing Shingles

Inspect your shingles closely from a safe ladder or while on the ground. Look for shingles that have cracked or are missing granules. Storms can cause roof damage over time. To keep your roof in working order, replace any shingles that have become detached or are openly gaping.

Flashing Deterioration Around Roof Penetrations

Roof flashing creates a watertight seal around valleys, chimneys, vents, and other areas where water can leak into your home. Peeling, cracked, or deteriorated flashing can allow leaks. We recommend promptly resolving any flashing issues that come up.

Sagging Roof Line

If you notice your roofline showing signs of sagging or unevenness, it could be a sign of a problem with the structure that requires further inspection by a roofer. A sagging roof deck will worsen over time if not given proper reinforcement or replaced entirely.