10 Best Roofers in San Mateo, CA

How Much Does a New Roof Cost in San Mateo?

Cost is an important consideration when replacing a major piece of your home like your roof. Below, find the average price range for roof replacement on a 1,500 square foot home in San Mateo, as well as comparisons between different popular roofing 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 when all is said and done. It's crucial to research and find a top quality and trusted local roofing contractor for the job. Here are the key factors to consider when choosing a roofing contractor.

• Detailed written estimate: Trustworthy roofing companies will give you a comprehensive written proposal. This proposal should outline the complete work plan, materials required, and total price without surprise costs. Steer clear of unclear bids, or ones that seem much too low or high.
• References and reviews: Vet companies by checking the latest online reviews on sites like Google, Yelp, or the Better Business Bureau (BBB). Look for a track record of consistently good feedback. Requesting local references is another great way to learn more about the customer experience.
• Roofing materials and products: Reputable manufacturers produce durable roofing materials that can endure San Mateo's weather for years. Steer clear of contractors pushing low-cost or generic products. Review shingle samples before making a decision.
• Responsiveness and communication: Your contractor should keep you regularly updated throughout, from the quote to the completion of the project. A representative should answer questions quickly and resolve any concerns while working.
• Warranties and guarantees: The best roofers provide strong guarantees from the shingle makers covering materials for 30+ years, together with at least a 5-year labor guarantee. Stay away from companies with shorter warranty periods.
• Experience and credentials: Look for companies that have been operating for at least 10 years. These companies' longevity and years in business reflects stability, expertise, and satisfied past clients. Ensure a provider has appropriate licenses, bonds, and insurance before hiring. Also ask about professional certifications, such as those from the National Roofing Contractors Association.

Signs Your Roof Needs Repair or Replacement

Though most homeowners don't think about their roof on a daily basis, it plays a vital protective role for your home. Remain alert for these common signs that your roof may need inspection and repairs from a professional roofer.

Roof Age

Your roof's age and material are key factors. The most common residential roofing material is asphalt shingles, which normally last 20–25 years before requiring replacement. Schedule an inspection if your roof is reaching this age to determine if a full replacement is needed.

Leaks or Water Stains in Your Home

One of the most obvious signs of a roof issue is leaking. Stains on insulation, ceilings, 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 lead to mold growth and roof damage.

Exposed Roof Decking Underneath Shingles

If you can see roof decking or sheathing underneath your shingles, it means those shingles are severely curling or losing their seal, and replacement is required. Shingles should 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 are cracked or are missing granules. Storms can cause roof damage over time. To keep your roof in good condition, replace any missing shingles, or ones that have gaping holes.

Flashing Deterioration Around Roof Penetrations

Roof flashing makes a watertight seal around vents, valleys, chimneys, and other areas where water can penetrate your roof. Peeling, cracked, or deteriorated flashing can allow leaks. We recommend quickly addressing any flashing issues that come up.

Sagging Roof Line

If you notice your roofline sagging or sloping unevenly, it could indicate a problem with the structure that requires professional inspection. A sagging roof deck will worsen over time if not properly supported or replaced.