Lorenzo Tijerina
Working with James has been a blessing. Honest , fair and has become one of my Friend . Thank you for sending him to us.
Business ProfileSolar Companies in Danville, California
SameDay Solar
SameDay Solar
SameDay Solar is a California-based company specializing in residential solar installations. It is based in Danville, and William J. Anderson is its founder and CEO.
Last Updated October 2, 2026.
Business Highlights
- SameDay Solar says it is committed to being the fastest solar company in the industry.
Service Area
Based in Danville.
Active Business Listing
SameDay Solar is one of 7 solar companies ProsGrade lists in Danville, California.
Active
Public local listing
Listing details
1 service listed: Solar installations. Rated 4.6 from 17 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How SameDay Solar compares with the other 6 solar companies on ProsGrade in Danville, using public Google ratings and review counts.
- One of 7 Danville solar companies on ProsGrade.
Services Covered
- Solar installationsResidential
Reviews
What customers say
Customers praise the team's professionalism and helpfulness. One customer describes James as honest and fair. A homeowner says SameDay Solar installed roof panels and a Tesla Powerwall 3 in one day; another says the company completed a project in about a month.
Customer Reviews
Jaime Fajardo
James was incredible to work with. Would highly recommend him. Very good at helping us out with everything. Great experience.
Joaquin Costa
I’ve spoken with a lot of companies and Sameday Solar is the best by far. Their employees are very professional and responded to my requests quickly. Save yourself time and stress with Sameday.
Michael Frank
About 9 months ago Same Day Solar installed panels on the roof and a Tesla Powerwall 3 on the back wall of our house. The installation was uneventful, took only one day and worked as expected - about 3 months months after the initial installation we added a battery extension to the Powerwall. Same Day Solar was delivering what they promised and they took care of all paperwork required for the installation. They also replaced one panel that had been damaged on delivery without any problems. So far the system has been up and running for 10 months, 24/7 without any issues and we have been very happy with the results.
I would recommend Same Day Solar to anyone.
Arthur Amelio
These people are great!
We experienced over two years of starts and stops. Two companies even declared bankruptcy after completing only part of of job!
SameDay Solar completed the entire job in about a month. They had to reapply for expired permits, and remove 24 Solar panels, replacing them with their own more efficient ones. The actual installation took only 2 days for a good size system that included 2 Tesla batteries.
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Frequently Asked Questions
Has SameDay Solar handled permits and installation paperwork?
One customer says the company handled installation paperwork; another says it reapplied for expired permits.