A Better Way to Power Your Home

Dependable Solar Contractors in Southern California

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Go Green and Save Green!

Reduce your carbon footprint while saving money.

Increase Your Property Value

Boost your home's value by an average of $15,000.

Reliable Energy Solutions

Uninterrupted power with optional battery backup systems

A group of people standing in front of a solar panel.

Serving California Since 1988

Guasti Solar is a family-owned and operated business based in Oak Hills. We provide homeowners and businesses with solar installations in High Desert, including Hesperia, Victorville, Apple Valley, Phelan, San Bernardino, Rancho Cucamonga, Riverside, and surrounding areas. Since 1988, we’ve been committed to providing eco-friendly solar power solutions in Southern California and reliable battery backup systems tailored to your needs.

Go Solar, Save Money

By converting to solar energy, you reduce your reliance on traditional electricity sources, lower your energy bills, and contribute to a healthier planet. Whether you need a complete solar power system or an optional battery backup, Guasti Solar is your go-to resource for custom installations.

A view of the roof top of a building with solar panels.

Increase Your Property Value

Installing solar panels not only helps the environment but can also boost your property’s value by an average of $15,000. With solar energy, you’ll enjoy substantial savings and a sustainable energy solution that enhances your home’s appeal. Learn more about it in detail.

See What We Offer

Client Testimonials

Great family own small business did a wonderful job installing my solar system. I highly recommend Guasti.

Mike M.

Friendly, good people. I went with their company because i believe in supporting local small business. Big companies have no ownership of their work...if you have an issue, you talk with a rep from another state or city. At Guasti, you deal with people directly involved with your project. Joe is considered the godfather of solar and wind. The owners also host a yearly holiday party to keep in touch with their customers and also to show their appreciation for the business.

Jarrod K.

We were so happy with the service we received in getting a new solar panel system installed.

My husband was very apprehensive and had many questions which Mr. Guasti came to our home and explained every one of them. We checked into other solar companies and found that this is the one we wanted to go with.

After the start, they helped us get the loan we needed, the size we wanted, took care of all the permits and anything that came up. The workers are very friendly and explained what they were doing as I went out there peeking at what they were working on.

They made sure to push everything through quickly so we could have it installed before the new year so we could get the tax credit applied for this year!

We recommend them and ask all the questions you want.. We are soooo happy with our "Electric Bill" now!!

Frances G.

Joe came out about 8 years ago to install my windmill. They did a excellent job and I have them do the maintenance when needed this family is so good that they treat their customers like friends they have Christmas party's every year which are really nice.

Carl W.

Just from my Conversations with Joe, Beverly, and even their Daughter Merry, These folks are Very Professional yet polite, and considerate! Customer Service Can Make or Break a Company. Even if what they sell is the Highest quality, a rude service person can bring you down! Try them!

Marvin M.

Joe and Beverly designed and installed my solar system. I have a 7K system that generates all the power we use every year. It has been in operation since 2009. In addition to design and installation, the Guasti's are very up to date on all the regulations and rebates and laws. Beverly did ALL the paperwork. Wonderful, honest, efficient people to work with. P.S. my solar system has required NO Maintenance since installation.

R P.