4.5/5 – 106 Reviews
A white emblem with a circular design displaying the words "Diamond Certified" around it. A diamond shape is in the center of the circle, giving the impression of a quality or authenticity certification for services like roof replacement or repair.
4.7/5 – 199 Reviews
LICENSE #907116
Mon - Fri: 8:00 - 16:00 (408) 957-0531

Your Trusted Residential Roofing Partner In Los Altos

Roof Replacement, Roof Repairs & Gutter Installation in Los Altos, CA​
A white shield icon with a check mark in the center, symbolizing security or protection for roofing services and gutters, on a light gray background—perfect for Bay 101 Roofing.
10 years of Workmanship Warranty
+ 300
5-Star Reviews from Bay Area Homeowners
30 +
Years of Roofing Experience in Los Altos
What we do

Replace or get a New Roof

At Bay101 Roofing, we’ve been serving homeowners in Los Altos for over 30 years, providing reliable roof replacements, roof repairs, and gutter installations that keep homes safe and beautiful.

Bay101 Roofing is your go-to residential roofing service provider.

A large, modern house with gray roofs, white siding, and several peaked gables, shown in soft, evening sunlight against a pale sky.
Two construction workers wearing helmets and overalls sit on a shingle roof, taking a break from a roof replacement project with tools beside them. The sky is bright and mostly cloudy in the background.
Aerial view of a house roof with gray shingles, two skylights, a chimney, and several roof vents, surrounded by green trees.
10 Year Warranty
Every roof we install in Los Altos comes with a 10-year workmanship warranty, giving you peace of mind and long-term protection
Price Assurance
A new roof not only protects your Los Altos home but also enhances its curb appeal and overall property value.
Financing
We make sure every roof replacement in Los Altos is built to withstand the local climate, keeping your home and loved ones safe year-round.

Our Latest Projects

Testimonials

What clients are saying

I see remarkable attention to detail and good problem-solving. We would use Bay 101 Roofing again in a heartbeat, except we think the roof will outlast us! Many thanks, Jose, Lorena, Juan, Jose, and Adan!

A round icon features a gray, anonymous silhouette centered within a blue circular outline, set against a light gray background. The design is simple, representing Robert G's generic user profile or avatar.
Robert G
Residential Client

”I finally found the trust-worthy roofing company”

”Bay 101 Roofing and did a great job replacing our roof. This company is easy to work with, responsive, competitively priced, knowledgeable and they made the whole process very easy. Highly recommend.”

A person with long brown hair wearing a blue top, smiling. The image, featuring Leonie H, is framed within a circular blue border.
Leonie H
Residential Client

” Remarkable Attention to detail ”

FAQ

A typical roof replacement in Los Altos takes about 2–3 days, though timelines vary based on roof size, complexity, and the materials selected. Smaller homes or simple shingle installations may finish sooner, while larger roofs or unique materials may take longer. Bay101 Roofing prioritizes scheduling, crew coordination, and thorough cleanup to deliver a high-quality roof replacement with as little disruption to your routine as possible.

Bay101 Roofing installs both aluminum and copper gutter systems to protect Los Altos homes from rainwater damage. Aluminum gutters are lightweight, rust-resistant, and cost-effective, while copper gutters are durable and develop a beautiful patina over time. Both options can be customized to match your home’s exterior and ensure effective water drainage away from the foundation and landscaping.

Yes, Bay101 Roofing is fully licensed and insured to provide roofing and gutter services in Los Altos. Licensing ensures the company meets California building codes and industry standards, and insurance coverage protects both homeowners and workers in the unlikely event of damage or accidents during installation or repair. This professional protection gives you confidence throughout your project.

Absolutely, Bay101 Roofing offers a 10-year workmanship warranty on roof replacements in Los Altos, covering the quality of installation and craftsmanship. In addition to this, most roofing materials also come with manufacturer warranties that protect against defects in shingles, underlayment, or other roof components. Together, these warranties provide long-term coverage and peace of mind.

Getting a free roofing estimate in Los Altos is simple. Click the “Get a Free Estimate” button on the Bay101 Roofing website and fill out a short form. A representative will contact you to schedule an on-site inspection. During the visit, a roofing professional assesses roof condition, explains recommended services, and provides a transparent, no-obligation quote tailored to your home.

Bay101 Roofing offers flexible payment options to fit different homeowner budgets in Los Altos. They accept all major credit cards and personal checks and also provide financing plans that let you spread the cost of roof replacement or repairs over time. During your estimate appointment, the team can review available methods and help you choose the best solution for your needs.

Maintaining your new roof helps extend its lifespan and prevent costly issues. Recommended maintenance includes annual professional inspections, clearing debris, cleaning gutters and downspouts, and checking for loose or damaged shingles. Bay101 Roofing also offers scheduled maintenance services to catch early signs of wear and keep your roof performing well in all weather conditions.

Get Your Free Roofing Estimate in Los Altos