Guasti Solar - Oak Hills, California

Anthony S.

Guasti Solar help us reduce our stress from off-grid living. We didn't hire Guasti Solar right away. We took their quote to compare to other vendors. What we found is ALL other vendors in Los Angeles, San Bernardino, & Riverside counties wouldn't take our order because we're off-grid. Some vendors (2) even recommended Guasti Solar. After a year of searching for competitors we came back to, and hired, Guasti Solar.

Thank goodness we did. From the very beginning, Guasti Solar did everything they said they would do. This is crucial in todays world. They were on time, and extremely professional.

Joe provided the site-walk and recommended the system build/components while Beverly handled the transaction. Anthony and Luke Guasti handled the installation, turn-up, and worked with the county to ensure our installation passed inspection. We made a couple changes to our system (additional controller and swap a dead battery). Team Guasti rolled with the changes and handled everything without delay and like true pros.

We are completely satisfied and thankful to have found Guasti Solar.

LMR

The Guasti Construction family installed my 5.7KW system over ten years ago which they performed a great job!!! They originally studied my yearly electrical consumption, accordingly designed the system, applied for permits and applications, installed and was present during the final inspection. Later on I did have some minor issues with my Fronius inverter however Guasti was there to troubleshoot and repair under warranty. Staff has always been very courteous and professional. I highly recommend anyone interested in either wind or solar for home or commercial applications to consider Guasti Construction. I'm certainly glad I did.

Pat M.

Our neighbor installed this windmill I’ve lived in my same house for the last 30 years and for the last probably 15 years since they’ve installed, this it’s been nothing but a noisy noise pollution. It’s horrible you can’t enjoy having our front door open on windy days is the most it is a nuisance to the whole neighborhood

John C.

This family business is awesome. They were on time completed the project when they said they would cleaned up after themselves and were very patient and respectful throughout.
My interactions where with Anthony, Luke and Lisa.
They kept me in the loop throughout the inspection and turn up fast.
Time wise I was surprised that Edison allowed turn up so quickly only a coupl of weeks. We are enjoying our system providing safe power and helping us save.
Thanks again to the Guasti family we appreciate your hard work and honesty.

John and Bette Cincotta

Layne M.

Our solar system quit working months ago and we didn’t know it. One huge Edison bill later, we called Guasti Solar on Monday, they fixed it on Tuesday. The Guasti team are great to work with. What else could you ask for? Thanks a million!

Simon M.

Guasti Solar just finished installing solar on my home in Mission Viejo and did an outstanding job. They did everything when they said they would and even managed to finish ahead of schedule. The installation itself is very neat and orderly. I'm an engineer and very picky about things of this nature and I couldn't have done a better job myself. Guasti Solar is a family run business and they are good people. I had four different solar companies bid on this job. Guasti definitely wasn't the highest, nor were they the lowest, but they were the ones that gave me the best feeling. This whole experience has proven that out and I am so glad I chose them.

Valerie J. G.

Joe Guasti is very knowledgeable and passionate about wind and solar energy. He is dedicated to his craft and works hard for his customers.

Nathan L.

Good people. Very helpful. Also related to the founder of the town of Guasti by Ontario airport.