10 Best Roofers in Mill Valley, CA

How Much Does a New Roof Cost in Mill Valley?

Price is an important consideration when replacing your roof. Below you'll find the average price range to replace a roof on a 1,500 square foot home in Mill Valley. We also compare prices for popular roofing materials.

How To Choose a Roofing Company

A new roof installation is a major home renovation that can cost over twenty thousand dollars total. It's crucial to research and find a highly reviewed and recommended roofing company for the job. Here are some important considerations for selecting a roofer.

• References and reviews: Check companies thoroughly by reviewing their most recent online feedback on Google, Yelp, or the Better Business Bureau (BBB) to look for consistently good feedback over many years. Also request recent local references to find out more.
• Detailed written estimate: Reputable roofing companies will provide a comprehensive written estimate that outlines the full scope of the work, specific materials, and total cost without hidden fees. Avoid vague quotes or ones that seem dramatically high or low.
• Warranties and guarantees: Reputable roofing companies provide strong guarantees that cover your roof. Look for coverage on shingles lasting 30+ years, plus at least a 5-year guarantee on labor. Avoid companies that have shorter warranties.
• Roofing materials and products: Quality roofing materials from leading manufacturers are able to withstand Mill Valley's weather and last for decades. Beware of contractors who push extremely low-cost or generic products. Review shingle samples before deciding.
• Responsiveness and communication: From the time you get a quote to project completion, your roofer should keep you regularly updated. A representative should answer questions and handle any issues during the project.
• Experience and credentials: An established roofing company that has been operating for over a decade demonstrates years of expertise, satisfied customers, and consistent quality work. Ensure the company is fully licensed, bonded, and insured before you hire them. Inquire about any professional certifications relating your project, such as those from the National Roofing Contractors Association.

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 a vital role in keeping a home safe and secure. Be on the lookout for these signs that your roof might need professional attention.

Roof Age

The age and material of your roof are important. Asphalt shingles, the most common roofing material for homes, typically last about around 20–25 years. If your roof is nearing or past this lifespan, schedule an inspection to see if complete replacement is necessary.

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 signal that water is getting through damaged or worn shingles. Even minor leaks should be taken care of right away, as they can result in mold and more damage over time.

Exposed Roof Decking Underneath Shingles

If you can see roof decking or sheathing visible under your shingles, it means those shingles are severely curling or losing their seal and need to be replaced. Shingles should lie flat to prevent water from entering your home.

Cracked, Broken, or Missing Shingles

Carefully examine your shingles from the ground or a safely-placed ladder. Look for any shingles that have cracked or are missing granules. Over time, environmental factors like storms can cause surface damage. To keep your roof in good shape, you should replace any shingles that are no longer attached properly or that have gaps.

Flashing Deterioration Around Roof Penetrations

Roof flashing provides a watertight seal around vents, valleys, chimneys, and other areas where water can leak into your home. Cracked, peeling or deteriorated flashing can allow leaks. We recommend quickly addressing any problems with the roof flashing that come up.

Sagging Roof Line

A structural problem can cause your roof to sag or slope unevenly. If you notice unevenness, schedule a professional inspection. An improperly supported roof deck will only get worse without proper support.