Meet Gilroy Resident’s Premier Choice For
High-Performance Solar + Roofing Solutions

Whether For Your Home Or Business,
Count On Simmitri For The Best, Greenest Systems!

Gilroy is home to the world-renowned annual Garlic Festival and has been a significant farming community since native Ohlone and Costanoan tribespeople roamed the land (and still do to this day).

Gilroy’s location within Silicone Valley is unique because it receives an incredible amount of sunlight throughout the year without the cooler temperatures that a place closer to the ocean would bring.

This not only makes for impeccable garlic farming conditions but also for solar energy consumption. Cloudy or overcast days are a solar system’s worst nightmare — and a rarity for Gilroy residents.

High-quality solar and roofing systems go hand in hand. Combining both makes for an unstoppable high-performance system to improve your home’s energy efficiency, carbon footprint, and curb appeal.

Our Quality-Driven Services For Gilroy Residents

Simmitri’s been serving Gilroy and the surrounding areas for nearly 30 years, and we’re known for our holistic way of going about each home improvement project. You can learn by visiting our Personalized, Holistic Process page.

Knowing the ins and outs of our roofing systems allows us to pinpoint the perfect roofing + solar combination for your home instead of recommending low-performance, cookie-cutter options. Whether you’re a home or business owner in the Gilroy area, we’re in the mix from end to end with your and the planet’s well-being in mind. Learn more on our Community Programs page.

Residential & Commercial Solar

If you’re interested in reducing the carbon footprint of your home or business, our custom-designed systems are the ideal solution. With working on 30 years of experience under our belts, we’ve developed innovative, adaptive solutions to make any structure operate cleaner.

Thanks to an average of 260 sunny days each year, Gilroy home and business owners are in an excellent location to take advantage of a never-ending resource — sunlight! Instead of spending excessive money on cooling costs throughout the year, have the sun’s hot rays work for your building.

Learn more about Residential Solar and Commercial Solar.  Another related resource that you should read is Gilroy California Home Guide to Solar Energy.

“We recently hired Simmitri to replace our roof and install solar panels. They were FABULOUS and PROFESSIONAL. Our salesperson was very patient with our questions and explained things well. Our project manager was excellent at informing us about what would happen and following up on our questions and minor issues. They did what they said they would do when they said they would do it. We HIGHLY recommend them. We wish everyone we worked with were as good as they are.”

Emily Y.

Residential & Commercial Roofing

While “solar” is in our company’s name, Simmitri Solar began as a roofing company and started implementing solar energy systems later at the dawn of the solar industry (you can read more on the Our Story page). With an extreme interest in utilizing solar energy wherever possible, we knew merging our roofing knowledge, and expertise in high-quality energy-saving solutions would be seamless.

As GAF Master Elite Certified roofers, we’re guaranteed to provide your Gilroy home or business with a stunning roof that looks good and can withstand the test of time, backed by iron-clad coverage.

Are you looking for something a little more environmentally friendly? We can implement additional features such as highly-reflective shingles to reduce the amount of heat absorption. Then there are our custom-built rain gutters and gutter guards. These are just a fraction of the different roofing services we provide for all our customers.

Learn more about Residential Roofing and Commercial Roofing.

Residential & Commercial Battery Storage

For your Gilroy home or business to properly manage and utilize solar energy, reliable battery storage is imperative. The last thing you need is to run out of power during an emergency or weather event where the primary grid is down. When it comes to batteries, you can rely on when it counts — lithium iron phosphate is our go-to choice.

Lithium iron phosphate batteries are non-toxic, completely recyclable, and offer superior storage capacity and power limits. Our battery storage options can be fine-tuned to meet the needs of your everyday life.

Learn more about Residential Battery Storage and Commercial Battery Storage.

Residential & Commercial EV Smart Charging

Whether you’re looking for one EV smart charging station to be installed or ten, Simmitri is here to help. Our residential EV charging stations are portable, easy to set up and provide lightning-quick charge times.

You can schedule your charging station only to operate when electricity usage rates are at their lowest to avoid hefty utility bills down the road. Preparing an in-house energy assessment will give us a clear idea of the best resources for your home or business.

Learn more about Residential EV Smart Charging and Commercial EV Smart Charging.

Smart Home Solutions

A green home encompasses many different technologies and best practices to stay this way. No single thing will automatically cut your electric bill in half or eliminate your impact on the environment. It’s about the significant impacts of the more minor, long-term changes, alterations, and automation.

Along with some of the most advanced solar panel systems, we offer many specialized technologies that allow homeowners to control appliances, thermostats, and even total energy output on an as-needed basis.

Learn more about Smart Home Solutions

Commercial Energy Management

We don’t just end our relationship once we’ve installed new solar panels or EV charging stations for your business. When you choose Simmitri, you choose our lifetime commitment to your energy needs. Even when everything is all said and done, we help you monitor your energy intake and output to ensure your business operates as efficiently as possible.

Learn more about Commercial Energy Management.

Corporate Energy Services

Not only do we offer ethically-minded products and services, but we also work with businesses of all sizes to figure out the best way to maximize their environmentally-sound investments — eliminating the ones that aren’t. Additionally, we help companies find partners within their communities that are equally as eco-friendly as they are.

Learn more about Corporate Energy.

“Great customer service and quick turnaround time from the beginning to the end. The staff and the contractors are excellent, and I would highly recommend Simmitri to everyone. They went above and beyond to make sure everything came together. This is one of the best companies with which I have done business. Thank you for such amazing professionalism!!!’”

Thanh B.

Why Choose Simmitri For Your Jump
To A Greener Home Or Business

Unlike many other fly-by-night roofers looking to capitalize on homes struck by natural disasters or in general need of a new roof, we have planted our roots in Silicon Valley since before the company started in 1995.

We’re lucky enough to be where we are today thanks to hard work, a passion for the movement, and our wonderful customers who entrust us with their homes (visit our Customer Reviews page to see what they’ve been saying).

Key elements that compose who were are as a company includes:

Personalized Customer Experience: Our customer service and design team center all of their attention around your needs and how to provide the best value for your home or business. While no two customer experiences are ever the same, we strive to ensure each one is positive and ends with a smile.

Learn more about our Personalized Customer Experience

Modern, Cutting Edge Products

If it’s not the absolute best, we don’t offer it to Gilroy residents. Utilizing state-of-the-art technology and next-level industry innovations steamrolled us to becoming the #1 choice for solar and roofing in the Silicone Valley.

Learn more about our Modern, Cutting Edge Products

Custom, Detailed Workmanship:

Because each home is unique, we tailor our solar and roofing services to perfectly match the home or business we are working on — no cookie-cutter solutions to age-old problems or one-size-fits-all energy efficiency demands. We take a brand-new approach to each project to deliver top results every time.

Learn more about our Custom, Detailed Workmanship

Seasoned, Professional Service

With over 30 years of experience in roofing alone, we are indeed experts at our craft. To make the Simmitri team, all prospective employees must undergo rigorous vetting and training to be sure they are the right fit for our family. At the end of the day, we are here to serve Gilroy homeowners and strive to do just that.

Learn more about our Seasoned, Professional Service


For each solar and roofing project to be pulled off without a hitch, our crew members must adhere to a stringent set of core values. These core values help keep our mission on track regardless of obstacles.

Learn more about how we’re Mission Driven

Active Community Involvement:

We believe in giving back to our community in any way possible, as often as possible. By partnering with various Non-profit Organizations, we can inspire, educate, and assist our local communities in their dreams for a greener tomorrow.

Learn more about our Active Community Involvement

“What a great company to work with! From start to finish, communication was great. The Simmitri team did all the work with PG&E (the headache part) and had everything complete in a timely manner.”

Steffan W.

Simmitri Takes Every Measure To Ensure
Your Gilroy Home Or Business Is Empowered

If your home is in dire need of a new roof, or maybe you’re finally ready to switch to solar, the highly experienced team at Simmitri is on the case (jump to our Meet The Team page to learn more)! With affordable financing options available for qualifying Gilroy customers, switching to solar has never been easier.

Are you ready to get started? Give us a call at (408) 779-3333 to Schedule Your Free Estimate, or you can use our nifty Contact Us form. We look forward to hearing from you!