Westech Roofing Co. is a licensed and insured professional roofing company that has been serving San Francisco and Bay area since 1997. Our Quality roofing installations and workmanships have given us a sterling reputation that is unsurpassed in the roofing industry. We are proud to uphold an A+ reputation with the Better Business Bureau. We offer emergency service and the best warranties in the trade. If you are in need of a new roof or just need a roof repair, call today for a free, no obligation estimate. References are available upon request. .


We aim to provide customers with first-rate roofing services and we strive to complete all assigned projects smoothly and successfully.

We specialize in installing quality roofs for residential, commercial and specialized buildings such as churches and restaurants.

A great roof will always be noticeable, and this is what Westech Roofing Co. aims to provide all our clients.



WESTECH ROOFING CO. aims to provide customers with first-rate roofing services. We strive to complete all assigned projects smoothly and successfully. With each completed project, customers can expect the best of quality, craftsmanship, and cleanliness from our company.

WESTECH takes pride in the number of years we have been in the industry. Our company has a flawless record with the San Francisco Office of Consumer Affairs. In addition, we have managed to maintain an A+ rating with the Better Business Bureau for the last 20 years.

Regardless of the roofing solution or service you need, Westech will always be there to help. We are professional, experienced, knowledgeable, and most importantly, passionate in working to achieve high levels of customer satisfaction.

We understand that home improvement projects can be both exciting and intimidating. This is why we take the time to finish all projects on schedule without compromising quality. As additional benefit, we offer site visits to some of our previous and current projects. This way, you will know more about the quality of work we provide before you sign in with us.

WESTECH has a great eye on detail, especially on our projects. We are available before, during, and after the completion of your roofing project. This is our way of building a long-term relationship with our satisfied customers. Our team stands behind our work and we strive to deliver only the best for your satisfaction. This approach to customer service helped us stay at the top for three generations, and we promise to continue this for generations to come.



We specialize in installing quality roofs for residential,

commercial and specialized buildings such as churches and restaurants.

Pitched Roofs

Westech uses durable, beautiful color-blended line of shingles by CertainTeed Landmark series.

Flat Roofs

Westech offers CertainTeed Flintlastic SA (self- adhering) and GTA (torch down) modified bitumen.


Westech has installed customized galvanized sheet metal and copper skylights, Velux residential and sun tunnel skylights.

  • Downspouts & Gutters

Gutters are troughs that collect rain running off a roof and channel it, with proper slopes, to downspouts that carry the rain water to the ground and away from your siding, windows, doors and foundation. The most commonly used gutter – open gutters – should be regularly cleaned of leaves and debris in order to function properly.

In the course of collecting water, open rain gutters also collect leaves, acorns, pine needles, and other debris which can cause clogs anywhere in the gutter itself or sometimes in the downspouts. In dry conditions clogged gutters are a fire hazard; and during heavy rains, clogged gutters and downspouts can cause rainwater to overflow, potentially causing substantial damage to your building, landscaping and basement.

Westech has installed aluminum, galvanized sheet metal and copper downspouts and gutters.

  • Gutter Guards

A form of leaf protection allows water to flow freely through the gutter bottom, while preventing debris from falling into the gutter and interrupting the flow.

This interest in maintenance reduction through debris filtering has grown more popular in recent years, along with an aging population of homeowners. Though it adds cost to the initial installation, these costs can be mitigated over the years by the safety benefits and /or eliminating costs associated with gutter cleaning which can range from $100 to $400 depending on the size of the house and number of gutters.

There are now many gutter guards or leaf protection products available to the homeowner. They have evolved into several configurations and come in a broad spectrum of materials and prices, and with varying degrees of effectiveness. Many good gutter installers carry all types. Some are add-on devices that fit over existing gutters. Others are complete systems that require replacing existing gutters.


A great roof will always be noticeable, and this is what Westech Roofing Co. aims to provide all our clients. Our company has been a premier provider of topnotch roofing services for over 20 years. We provide slate, tile, and flat roofing for both residential and commercial properties in San Francisco County and beyond.

Satisfaction is not just a promise; it’s our guarantee. Our team always goes the extra mile to exceed client expectations while maintaining exceptional workmanship for every project we handle. Each contractor in our team is highly skilled and experienced so you can expect only the best from our service.

We work with your convenience in mind. Our company offers visits to previous and current roofing projects so you can see for yourself the type of quality service we provide. If you wish to schedule a site visit or inquire about our service, call us at 415-822-3344. We’ve also provided an online form for your convenience. Once we process your request, we’ll send over our team to check on your roof.

WESTECH ROOFING CO. will contact you within 24 hours of business days.

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Westech Roofing Co.

1774 26th Ave. San Francisco, CA 94122

Phone: (415)822-3344 Fax: (415)731-5083 Email: westech@westechroofing.com