Best solar companies California San Bernardino County Fontana
Verified Fontana installs, review-backed Solar.com Scores, and the broader county market in one place. Public data, not paid placement.
What this data covers: counts come from investor-owned-utility interconnection records for Fontana service addresses. Homes served by municipal utilities interconnect through their city utility instead and do not appear here. Companies with fewer than 10 recorded local installs are not listed; many also build across San Bernardino County and beyond. See the full San Bernardino County ranking →
| # | Installer | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | Option One Solar1 recent installs30 verifiedActive since 20153.3% leased | 1 | 30 | 2015 | 3.3% | 9.1 | Get a direct bid | |
| 2 | Peak Power Solutions0 recent installs18 verifiedActive since 20155.6% leased | 0 | 18 | 2015 | 5.6% | 8.5 | Get a direct bid | |
| 3 | Orange County Contracting Services6 recent installs14 verifiedActive since 202128.6% leased | 6 | 14 | 2021 | 28.6% | 8.4 | Get a direct bid | |
| 4 | Guyou Construction2 recent installs18 verifiedActive since 201716.7% leased | 2 | 18 | 2017 | 16.7% | 8.4 | Get a direct bid | |
| 5 | Blalock Electric0 recent installs29 verifiedActive since 201820.7% leased | 0 | 29 | 2018 | 20.7% | 8.4 | Get a direct bid | |
| 6 | Evolution Energy3 recent installs16 verifiedActive since 20140.0% leased | 3 | 16 | 2014 | 0.0% | 8.4 | Get a direct bid | |
| 7 | Citadel Roofing And Solar0 recent installs20 verifiedActive since 20230.0% leased | 0 | 20 | 2023 | 0.0% | 8.4 | Get a direct bid | |
| 8 | Forme Solar Electric1 recent installs10 verifiedActive since 20210.0% leased | 1 | 10 | 2021 | 0.0% | 8.2 | Get a direct bid | |
| 9 | Solar Optimum Design & Electrical8 recent installs57 verifiedActive since 20150.0% leased | 8 | 57 | 2015 | 0.0% | 8.2 | Get a direct bid | |
| 10 | Powur Home Construction9 recent installs110 verifiedActive since 202015.4% leased | 9 | 110 | 2020 | 15.4% | 8.0 | Get a direct bid | |
| 11 | Jdc Energy Solutions2 recent installs15 verifiedActive since 20140.0% leased | 2 | 15 | 2014 | 0.0% | 7.9 | Get a direct bid | |
| 12 | Pell Solar3 recent installs92 verifiedActive since 201119.5% leased | 3 | 92 | 2011 | 19.5% | 7.9 | Get a direct bid | |
| 13 | Apollo Home Power11 recent installs11 verifiedActive since 202590.9% leased | 11 | 11 | 2025 | 90.9% | 7.8 | Get a direct bid | |
| 14 | Grid Alternatives17 recent installs70 verifiedActive since 201492.9% leased | 17 | 70 | 2014 | 92.9% | 7.8 | Get a direct bid | |
| 15 | Simply Solar2 recent installs43 verifiedActive since 20160.0% leased | 2 | 43 | 2016 | 0.0% | 7.7 | Get a direct bid | |
| 16 | La Solar Group1 recent installs28 verifiedActive since 201417.9% leased | 1 | 28 | 2014 | 17.9% | 7.6 | Get a direct bid | |
| 17 | Current Home18 recent installs85 verifiedActive since 2021100.0% leased | 18 | 85 | 2021 | 100.0% | 7.6 | Get a direct bid | |
| 18 | True Power Solar0 recent installs39 verifiedActive since 201338.5% leased | 0 | 39 | 2013 | 38.5% | 7.5 | Get a direct bid | |
| 19 | Pacific Allied Group2 recent installs34 verifiedActive since 202247.1% leased | 2 | 34 | 2022 | 47.1% | 7.5 | Get a direct bid | |
| 20 | Sunlux3 recent installs61 verifiedActive since 201618.0% leased | 3 | 61 | 2016 | 18.0% | 7.5 | Get a direct bid |
Solar.com Scores are live for 65 of the 100 listed companies. Companies marked “Not yet scored” have fewer than 20 analyzed review texts or are still being analyzed; scores appear as each company's full review record is processed. Select up to 4 companies to compare them category by category.
% leased counts systems recorded as third party owned, meaning a lease or power purchase agreement. The remainder are customer owned. Active installer counts include every company that filed an interconnection that year, down to small and occasional operations. Counts come from PG&E, SCE, and SDG&E interconnection records; homes served by municipal utilities like LADWP, SMUD, and city power departments interconnect through their local utility instead, so companies focused on those territories show fewer records here. The Solar.com Score is computed from the full text of each company's published customer reviews (star ratings and review counts sourced from Google and Yelp), plus verified public-record track record; it drives the default ranking for scored companies and is never for sale.
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The table ranks scored companies by Solar.com Score, computed from customer review evidence and verified track record; 65 companies in this city currently carry a score. Companies not yet scored remain visible below the scored cohort by recent Fontana install activity. The best company for your home also depends on your roof, utility, and bid, which is why the same companies compete on price through solar.com.
Companies with enough review evidence are ranked by Solar.com Score. Not-yet-scored companies show a dash in the rank column and sit below them, ordered by recent 2025-26 installation activity recorded for Fontana addresses in CPUC interconnection records. No company can pay for placement.
Where a company clears the 20 analyzed-review floor, its Solar.com Score summarizes substantive customer review texts, weighted by reviewer credibility and recency. Select companies in the table to compare their review scores category by category, from sales integrity to long-term support.
Run your address through solar.com. Vetted installers compete on one identical scope for your home, pricing is locked online, and the Best Price Guarantee backs the winning number in writing.
Methodology: Counts are residential PV interconnections in investor-owned-utility territory (PG&E, SCE, SDG&E) per CPUC Rule 21 public records through May 2026. Postal and name variants are merged. Municipal utility territory such as LADWP, Glendale, Pasadena, Burbank, Anaheim, and Riverside Public Utilities is not included in those CPUC counts. Counts show recorded installations, not quality ratings. Reported costs are self-reported on owned-system interconnections. No installer can pay for placement.
Who we are: Solar.com is a solar marketplace — we connect homeowners with installers and earn a fee when projects move forward. These rankings and scores are computed from public installation records and published customer reviews. No installer can pay for placement, and no installer — including those we work with — can pay to change a score.