Best solar companies California Sonomarin Solar

Sonomarin Solar Reviews

California installer. This profile is built from public installation records and published ratings, not paid placement.

245verified installs in California utility records*
47recent installs, 2025-26 records*
2018first year in county records
8.2/10Solar.com Score · 53 reviews analyzed

Solar.com Installer Score for Sonomarin Solar

One score, computed the same way for every installer. We read the full text of all 53 substantive published Sonomarin Solar review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

8.2/10

Blends the six category scores (70%) with the recency-weighted star record (30%).

Synthesized from 53 substantive customer review texts (55 published reviews collected).

Google 4.6★ · 9 reviewsYelp 4.8★ · 46 reviews

Updated September 28, 2026 · No installer can pay to change this score · How scores work →

Read what customers actually say ↓
Review star recordRecency-weighted star ratings across platforms, converted to a 0-10 signal before it is blended into the headline Solar.com Score.9.8

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.2

15 reviews speak to this · 13 praise · 2 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.9

12 reviews speak to this · 10 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.8

34 reviews speak to this · 30 praise · 4 complaints

Timeline ReliabilityHow well the company manages the path from contract through permits, installation, inspection, and turn-on — without the customer having to chase it.7.3

26 reviews speak to this · 23 praise · 2 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.8.1

35 reviews speak to this · 33 praise · 2 complaints

Long-Term SupportHow well the system performs after turn-on, how the company handles monitoring, warranty claims, and service calls — and its staying power to honor them.7.9

17 reviews speak to this · 16 praise · 1 complaints

#186 of 678 scored in California by Solar.com Installer Score

How does Sonomarin Solar compare where you live? Rankings are local; an installer that leads one city can trail in the next. See how they rank in your city →

Why this differs from star ratings: most five-star reviews say “great company” and stop, and star averages reward that. These category scores only count reviews with concrete evidence, weighted by recency and the reviewer’s track record. A company can hold a strong star average while specific categories score lower; that gap is usually where the real story is. Categories with more complaints than praise are the questions worth asking any bidder, not necessarily dealbreakers.

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Where Sonomarin Solar builds

County-by-county activity from CPUC records through May 2026.

What this data covers: *Counts on this page, including the totals up top, come from investor-owned-utility interconnection records (SCE, SDG&E, PG&E). Work in municipal-utility territory, such as LADWP or city utilities, and outside California does not appear here, so this company's true totals are higher than shown. Unlike the county rankings, this profile also shows counties below the 250-install ranking floor.

CountyVerified installsRecent 2025-26Active sinceMedian system% leasedCounty rankingLink to the county ranking page. This company's rank on this page is its Solar.com Installer Score rank, shown above.
Marin County1864120196.3 kW0.0%below ranking floor (under 250 installs)
Sonoma County59620186.9 kW0.0%below ranking floor (under 250 installs)

% leased counts systems recorded as third party owned (lease or power purchase agreement); the remainder are customer owned. Median system size is the middle system this company installed in that county. Star ratings and review counts are from Google.

Sonomarin Solar reviews: what customers say

An independent synthesis of published customer feedback across Google and Yelp, updated September 28, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity7.2/10

A smaller number of complaints mention poor helpfulness or communication around initial questions, so the category reads positive overall with a few watch-outs.Solar.com's composite of published customer feedback, not a customer quote

Clear, Pricing proposals. Reviewers describe a recurring pattern in this area. Representative review excerpt: "We did get a few quotes, and at the end of the day, Avner's prices were very competitive, and his service felt more personalized than some of the other, bigger..."

Promises matched delivery. Reviews also describe the team as delivering what was promised, including work completed on schedule and within budget. Representative review excerpt: "Nick and his team at SonoMarin delivered everything that they promised on time and on budget."

Limited help for some inquiries. A small number of reviewers report difficulty getting useful information before becoming customers, which suggests the early sales experience was not consistent for everyone. Representative review excerpt: "Again, if you need a solar system go somewhere else and dont even try to ask them for any helpful information, I was told that I wasnt even a customer..."

Price & financing transparency

Price Transparency6.9/10

There are also a couple of complaints tied to billing or reimbursement, so the section is positive overall but not spotless.Solar.com's composite of published customer feedback, not a customer quote

Fair and Pricing pricing. Reviewers describe a recurring pattern in this area. Representative review excerpt: "I must also mention that his prices are very competitive, we had 3 bids and there was no doubt that he offered the best value for the price."

Straightforward cost expectations. Some customers say the work was presented as fair-priced and cleanly executed, with no major surprise in the way the job was described. Representative review excerpt: "He offered a fair price for the work, and went above and beyond by thoroughly cleaning the panels after they were reinstalled."

Billing issues reported by a few reviewers. A small number of reviewers mention billing or reimbursement problems, including duplicate charges or a payment dispute, which points to occasional transparency concerns. Representative review excerpt: "We were being billed for an invoice of the total cost from both payments but also billed a 2nd time for the first payment SonoMarin made."

Communication & coordination

Communication7.8/10

Communication is a clear strength in the review set. Most reviewers describe the team as responsive, easy to reach, and proactive with updates through permitting, scheduling, and installation. A few reviewers report unhelpful responses or unresolved issues, but those complaints are uncommon relative to the positive feedback.Solar.com's composite of published customer feedback, not a customer quote

Responsive and easy to work with. Many reviewers say the team was knowledgeable, responsive, and followed through well from start to finish. Representative review excerpt: "After the experience I had with the original contractor, working with a company that was knowledgeable, responsive, and actually followed through made a huge difference."

Frequent status updates. Customers also describe being kept informed about background steps like permits and scheduling, which helped the process feel coordinated. Representative review excerpt: "Throughout the entire process, our delightful guide, Ayelet, kept us continually updated on everything that was going on in the background, from permit pulls to scheduling."

Some support gaps reported. A small number of reviewers say they had trouble getting useful answers or resolving issues, suggesting communication was not perfect in every case. Representative review excerpt: "I asked multiple times for any information they might give me on generators they use and he continued to tell me he wouldnt help me because they dont sell individual..."

Timeline reliability

Timeline Reliability7.3/10

Most reviewers describe timelines as dependable, with work completed on time and permitting or utility steps handled with persistence. There are a few complaints tied to inspection or permit resolution, so timing appears solid overall but not universally smooth.Solar.com's composite of published customer feedback, not a customer quote

On-time installation work. Several reviewers say installation and electrical work were completed on schedule, reinforcing a generally reliable pace once the job was underway. Representative review excerpt: "All installation and electrical work were done extremely well and on time."

Helpful with permit and utility steps. Reviewers also mention support with permit pulls, inspections, and utility-related hurdles, including difficult application situations that were eventually resolved. Representative review excerpt: "On top of that, they were able to resurrect our NEM2 application with PG&E which we thought was a lost cause when Tesla walked away from the installation."

Inspection delays on a few jobs. A small number of reviewers report permit or inspection setbacks, including cases where inspections had to be repeated before approval. Representative review excerpt: "When alerted to this, SonoMarin agreed to close the permit out and resituate the generator but failed the inspection twice on multiple counts before it was finally approved."

Workmanship & site care

Workmanship8.1/10

Workmanship is another strong area in the reviews. Customers commonly describe the crew as professional, careful, and tidy, and several mention cleanup or follow-up touchpoints after the install. A couple of complaints point to wiring or repair issues, but the overall pattern is strongly positive.Solar.com's composite of published customer feedback, not a customer quote

Professional crews and clean installs. Reviewers frequently praise the crew for professional behavior and a smooth installation experience, with several noting that the finished work looked neat and well organized. Representative review excerpt: "From start to finish the team was professional, focused and super easy to work with."

Good site care and follow-through. Some customers also mention attention to cleanup and post-install care, including roof panel cleaning and general help after the initial job. Representative review excerpt: "Recently we needed our roof panels cleaned to try to wring a few more kw out of the system -- on short notice Ray came out went up the roof..."

Occasional installation defect reported. A small number of reviews describe workmanship problems such as a faulty wiring connection, which suggests issues were reported in isolated cases. Representative review excerpt: "Even then I had to hire my solar panel company to correct a faulty wiring connection with the generator which had caused me to lose solar power for several days."

Long-term support & performance

Long-Term Support7.9/10

Long-term support and system performance are described very positively in most reviews. Customers mention strong production, helpful service after turn-on, and support with warranty-related questions or maintenance. There is one complaint about a post-install wiring issue, but it is rare in the sample.Solar.com's composite of published customer feedback, not a customer quote

Strong system performance. Reviewers say their systems are producing well, including comments that output improved more than expected or that the system has continued running reliably over time. Representative review excerpt: "System out put increased 15% , better than I expected"

Helpful post-install service. Customers also describe getting support after activation, such as roof panel cleaning, inverter-related follow-up, and warranty coordination. Representative review excerpt: "Plus they made sure that the warranty from the battery company would be in good standing even though it was being hooked up to an older system."

Rare post-install problem report. A small number of reviewers mention a repair issue after installation, which indicates some service needs extended beyond the initial handoff. Representative review excerpt: "Even then I had to hire my solar panel company to correct a faulty wiring connection with the generator which had caused me to lose solar power for several days."

Bottom line: SONOMARIN SOLAR’s review profile is strongest in communication, workmanship, and long-term support, with most customers describing a responsive team and solid post-install results. Sales, pricing, and timeline reliability are still positive overall, but a few reviews mention billing, permit, or inspection hiccups, so the experience appears good more often than not rather than perfect.

How this is built: category scores and summaries weigh the company's full published rating record (9 Google reviews averaging 4.6 stars), the most recent and most relevant review texts, and recurring feedback themes verified acrossGoogle and Yelp. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.

About Sonomarin Solar

Company background from published business information and licensing records.

Also files CPUC records as: Sonomarin Solar & Electric.

Products

Solar

Service area

California. Note: the install counts on this page cover California investor-owned-utility records only.

Work for this company or see something out of date? Profiles can be claimed and corrected: contact partners@solar.com. Placement on solar.com is never for sale.

Recorded installs by year

Residential interconnections statewide in PG&E, SCE, and SDG&E records through May 2026.
6
2018
19
'19
11
'20
20
'21
33
'22
88
'23
30
'24
32
'25
16
'26

Important context: this chart shows investor-owned-utility records only. Companies that shift work toward municipal-utility territory (LADWP and city power departments) or other states will show declining bars here even while building steadily elsewhere, and 2025-26 records also lag real installation dates. Treat this as a partial window, not the company's full trajectory.

FAQ about Sonomarin Solar

What do customers say in Sonomarin Solar reviews?

We analyzed 53 substantive published customer reviews of Sonomarin Solar in full. The company's Solar.com Installer Score is 8.2/10, with category-level detail on this page covering sales integrity, price transparency, communication, timeline reliability, workmanship, and long-term support.

How many solar systems has Sonomarin Solar installed?

Sonomarin Solar appears as installer of record on 245+ residential systems in California investor-owned-utility interconnection records through May 2026. Work in municipal-utility territory or other states does not appear in those public records.

How can I compare Sonomarin Solar's pricing?

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How we built this data

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.