10 Best Roofers in Los Altos, CA

How Much Does a New Roof Cost in Los Altos?

Cost is a major consideration when replacing your roof. Below you'll find the typical price range to replace a roof on a 1,500 square foot home in Los Altos. We also compare prices for common roofing materials.

How To Choose a Roofing Company

Roof installation is a major home improvement project that can cost tens of thousands of dollars. It’s crucial to do your research and find the top-rated company for the job. Here are the key factors to consider when choosing a roofer.

• Responsiveness and communication: From the time you get a quote to project completion, a roofing contractor should maintain regular contact. A representative should answer questions and resolve any issues during the project.
• Roofing materials and products: Leading manufacturers produce durable roofing materials that can withstand Los Altos' weather for years. Avoid contractors pushing low-cost or generic products. Inspect shingle samples before making a decision.
• Experience and credentials: An established roofing company that has many years of experience in business demonstrates years of expertise, satisfied customers, and consistent quality work. Ensure the company is fully licensed, bonded, and insured before you hire them. Ask about any professional certifications relating your project, such as those from the National Roofing Contractors Association.
• Warranties and guarantees: Reputable roofers provide strong manufacturer warranties covering shingles for 30+ years and workmanship warranties for five or more years. Use caution with roofers offering shorter warranties.
• 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 positive reviews. You can also request recent local references to learn more about the customer experience.
• Detailed written estimate: Quality roofers will provide detailed written bids. These estimates should outline the full project scope, materials required, and total cost without hidden fees. Avoid vague bids or quotes that seem much too high or low.

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. Be attentive 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. Asphalt shingles, the most common residential roofing material, generally last around 20–25 years before needing replacement. Schedule a professional inspection if your roof is nearing or past this lifespan to determine if it needs to be replaced.

Leaks or Water Stains in Your Home

Leaks are a definite sign that your roof needs repair. Stains on walls, ceilings, or insulation, or in your attic often mean that water is getting through deteriorating shingles. Even small leaks need to be taken care of promptly, as they can lead to mold and more damage over time.

Exposed Roof Decking Underneath Shingles

If you can see your roof deck boards underneath your shingles, it means those shingles are severely curling or losing their seal and need replacement. Shingles should lie flat to prevent water from getting into your home.

Cracked, Broken, or Missing Shingles

Examine your roof shingles from the ground or a safe ladder. Look for cracking or loss of protective granule coating. Storms that bring strong winds can cause surface damage over time. To keep your roof in good shape, replace any shingles that have come loose or have open gaps.

Flashing Deterioration Around Roof Penetrations

Metal flashing on your roof creates a watertight barrier around chimneys, vents, valleys, and other areas where water can penetrate the roofing system. If the flashing is developing cracks, peeling away, or deteriorating over time, it may leak. Promptly take care of any flashing issues.

Sagging Roof Line

If your roof shows signs of sagging or unevenness, schedule a professional inspection. These issues could signal a structural problem. A sagging roof that's not properly supported or fixed will worsen over time.