Installer profile
High Definition Solar
The license side of High Definition Solar is solid. The exact CSLB entity is High Definition Solar Inc, doing business as High Definition Solar Construction, on license 949189, current and active with B General Building, C-39 Roofing, and C-46 Solar classifications, issued June 24, 2010 and expiring June 30, 2028. No CSLB disciplinary disclosure was displayed, no OSHA inspection was found, and BBB has accredited the company since 2010 with an A+ rating. One scope note: it holds no C-10 Electrical classification, and a C-46 contractor's electrical work is limited to the solar system, so ask who performs any broader electrical work.
The complaint record is why this is a C. BBB shows 7 complaints in the last 3 years against 15 years in business. Several allege roof leaks and water damage after installation, including a 2021 installation that allegedly left roof holes and damaged walls, carpets, ceilings, and a bed, and a solar post allegedly causing water damage on two levels; the customers rejected the company's response in both of those. One 2023 complaint alleges a $56,000 contract was declared expired on install day, a PACE loan tied to the mortgage was pushed and refused, and the company threatened a lien for the full $56,000 on a home with no system installed. Another describes a February 2020 system found in January 2023 to be collecting nothing, ending in a refund. None of the published complaints are dated 2025 or 2026, which is worth something, but Yelp sits at 3.4 from 196 reviews.
Know what you are walking into operationally. The careers page advertises door-to-door canvassers, an in-house call center, and in-home sales consultants, and DFPI lists seven enrolled PACE solicitor agents for the company through Renew Financial. PACE financing attaches to your property tax bill, and one of the BBB complaints turns on exactly that. The published warranty terms, 10 year workmanship and 25 year product with a 50 year roofing product on request, sit on a site whose own sitemap dates every page to 2019, so confirm they are still offered. Get a quote if the price is right, but make the roof warranty, the financing type, and the leak remedy explicit in writing before you sign.
The evidence
BBB gives a business start of September 1, 2009 and incorporation on March 23, 2010, the CSLB license issued June 24, 2010, and GAF says in business since 2010, so the sources conflict by a year but agree on roughly 16 years of operation. The company's own site publishes no founding year.
Source: CSLB license 949189
No government enforcement was found: CSLB displayed no publicly disclosable complaint and an OSHA establishment search returned no inspections. The verified adverse record is consumer-side: 7 BBB complaints in 3 years including repeated roof leak and water damage allegations, two responses rejected by the customers, an alleged $56,000 lien threat with no system installed, and a monitoring outage, with none dated 2025 or 2026.
Source: BBB complaints page
No High Definition Solar entry appeared in the populated 2026 Top Solar Contractors, 2025 Top California Solar Contractors, or 2026 Top Solar Installers tables. BBB lists 59 employees and Diamond Certified reports 250 customer surveys, which suggests real activity but is not a published megawatt or project count.
License 949189 is current and active for High Definition Solar Inc, DBA High Definition Solar Construction, with B, C-39, and C-46 classifications but no C-10 Electrical, a $25,000 American Contractors Indemnity bond, and workers comp through February 5, 2027. Qualifying individual Timothy John Netherton certified 10 percent or more ownership and matches the CSLB personnel record and the CEO named by BBB.
Source: CSLB license 949189
The services page states a 10 Year Workmanship Warranty, a 25 Year Product Warranty, and a 50 Year Product Warranty for roofing available on request, with transferable warranties listed as available, but no coverage detail, exclusions, or obligor is published and the site's sitemap dates every page to 2019, so the terms may be stale.
Company facts
| CSLB entity | High Definition Solar Inc, doing business as High Definition Solar Construction, Corporation |
| CSLB license | 949189, B General Building | C-39 Roofing | C-46 Solar, current and active; issued June 24, 2010; expires June 30, 2028; no C-10 Electrical |
| Address | 1190 Burnett Ave Suite F, Concord, CA 94520 |
| Contractor bond | American Contractors Indemnity Company, bond 100124883, $25,000; effective January 1, 2023 |
| Workers compensation | Employers Preferred Insurance Company, policy EIG518019003; February 5, 2026 to February 5, 2027 |
| Founding year | 2009 per BBB business start; 2010 per incorporation, CSLB, and GAF |
| Published warranty | 10 year workmanship, 25 year product, 50 year roofing product on request, per a site last dated 2019 |
| Service area | Per BBB: Alameda, Contra Costa, Marin, Napa, Sacramento, San Joaquin, San Mateo, Santa Clara, Solano, Sonoma, Stanislaus, and Yolo counties; the company site publishes none |
| Sales model | Door-to-door canvassing, in-house call center, and in-home sales consultants, with seven DFPI-enrolled PACE solicitor agents |
Data pulled August 25, 2026 from CSLB license 949189, BBB profile, BBB complaints, High Definition Solar services page and Solar Power World 2026 list.
How to read this
This C separates the state record from the customer record. Nothing in the CSLB or OSHA files works against this company; the drag comes entirely from a BBB complaint pattern heavy on roof leaks and a soft Yelp average. If you shortlist High Definition Solar, make the complaint themes your interview script: who fixes a leak and on what timeline, is the financing PACE or a conventional loan, and does the 10 year workmanship warranty still exist in the current contract. The absence of 2025 and 2026 complaints may mean the pattern is old. Make the company show you that rather than assuming it. Our full rubric, including how our own installation business gets graded on the same scale, is on the methodology page. We are a solar installer and we partner with other solar companies. Grading is structurally separated from revenue; see disclosures.