Semper Solaris Review

Semper Solaris reviews: what customers say

Each review site shows its own score; we read them on October 12 and 13, 2026 and do not combine them or add our own rating.

• Google4.8 / 51,401 reviews · El Cajon, CA office listing only, not company-wideRead reviews
• Trustpilot1.4 / 550 reviews · All reviews on its Trustpilot pageRead reviews

The five positive reviews below praise courteous, knowledgeable technicians and helpful phone support. The five negative reviews describe waits of weeks to a month for a service appointment, repeated repair calls, an automated phone line and unanswered emails, and missed callbacks. These are issues to ask about, not a measure of how often they happen. Ask Semper how long service appointments take to schedule after installation.

How we picked these: the five newest 5-star and the five newest 1- or 2-star reviews with written text on Google and Trustpilot, as of October 2026 (249 reviews read, back to Jul 18, 2017). Each quote is one sentence, word for word. Picking the highest and lowest ratings shows the range of experiences; it is not a representative sample, and we did not verify what reviewers describe.

How much does Semper Solaris cost?

Semper Solaris does not publish a system price on its solar financing page or the other pages we read. Ask for an itemized quote showing the cash price, system size and equipment models. For a loan, ask for the lender, financed total, APR and fees; for a PPA, ask for the rate per kilowatt-hour, any yearly increase and the term. For state price ranges, see our solar panel cost guide; for how the plans compare, see loans, leases and PPAs.

Plans as listed on Semper Solaris’s solar financing page, read October 14, 2026. That page does not describe a cash purchase.

Semper Solaris’s warranties page posts maker warranties for Silfab and Q Cells panels, Enphase IQ8 microinverters, Tesla PVI inverters and Tesla Powerwall batteries. Its battery page names Tesla Powerwall 3 and Enphase IQ batteries, and its solar page says customers can choose American-made panels. Your written proposal should list the exact panel, inverter and battery models, the system size in kilowatts (kW) and the forecast yearly production in kilowatt-hours (kWh).

What does Semper Solaris’s warranty cover?

Company-published terms from Semper Solaris’s warranties page, the maker documents it links and its battery page, read October 14, 2026. Your signed agreement decides what applies.

Where does Semper Solaris operate, and which licenses were checked?

Semper Solaris’s locations page lists 15 California offices from San Diego to Sacramento, plus one office each in Phoenix, AZ; Tampa, FL; Downers Grove, IL (Chicago area); and McKinney, TX (Dallas area) (read October 14, 2026). Its solar service page describes service “across California.” The site does not list the cities or counties each office covers. Its claimed Google Business listings (checked October 14, 2026) add some detail: the El Cajon office lists San Diego County communities such as La Mesa, Santee, Lakeside and Mira Mesa, and the Phoenix office lists Maricopa, Gila, Yavapai and Pinal counties. A listed state does not mean every address qualifies or that EcoGen can connect you with Semper there.

• Arizona
• California
• Florida
• Illinois
• Texas

Licenses

We found 1 active license record in state registries (October 13, 2026). Semper publishes license numbers for Arizona, California and Florida that we have not checked in the registry yet. Check the license yourself under the exact business name on your contract. A license check confirms registration, not workmanship quality.

Semper Solaris’s solar service page says it is a Tesla Certified Installer, its financing page says it is Tesla and Enphase certified, and its solar and roofing page says it is an Owens Corning Platinum Preferred contractor. Its homepage says it holds an A rating with the Better Business Bureau. These are company statements; we did not verify them.

Semper Solaris compared with three other installers

Palmetto serves all five of Semper’s states. Solar Optimum and Solaria serve two each and, like Semper, also do roofing. Every fact comes from the company profiles linked below.

*Each Google score is for the company’s head-office listing only, read October 12 and 13, 2026.

Full profiles: Palmetto · Solar Optimum · Solaria Solar & Roofing

Before choosing Semper Solaris

Ask for these in writing:

1. An itemized quote with the cash price and the financed total, including the APR and all fees.
2. The exact panel, inverter and battery models, the system size in kW and the forecast yearly production in kWh.
3. The warranty documents for your payment plan: panels, inverter, labor and roof penetrations.
4. Your local service contact, and who handles utility approval and warranty claims.
5. The exact company on the contract, such as Semper Solaris, and its license for your state.

Before you sign, read the quote line by line and bring our questions to ask a solar installer.

How we researched this profile

We read Semper Solaris’s own pages on October 14, 2026: homepage, about, locations (including its Phoenix, Tampa, Chicago and Dallas pages), warranties and the labor warranty file it links, solar panels, solar financing, battery storage, solar and roofing, solar service and contact. The CSLB result for license 978152 is from a registry check on October 13, 2026. We also checked its claimed Google Business listings for El Cajon, Phoenix and Tampa on October 14, 2026. We did not check its other licenses. We did not buy a system, request a quote, visit an office or interview customers. Semper Solaris did not review this page.

Our installer methodology explains what we check.