Best solar companies California Green Stock Solar

Green Stock Solar Reviews

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

574verified installs in California utility records*
41recent installs, 2025-26 records*
2012first year in county records
8.2/10Solar.com Score · 32 reviews analyzed

Solar.com Installer Score for Green Stock Solar

One score, computed the same way for every installer. We read the full text of all 32 substantive published Green Stock 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

Synthesized from 32 substantive customer review texts.

Google 3.7★ · 3 reviewsYelp 4.7★ · 29 reviews

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

Read what customers actually say ↓
Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.3

18 reviews speak to this · 17 praise · 1 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.7

9 reviews speak to this · 7 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.2

14 reviews speak to this · 13 praise · 1 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.7.2

9 reviews speak to this · 9 praise · 0 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.8.0

22 reviews speak to this · 22 praise · 0 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.7.8

13 reviews speak to this · 12 praise · 1 complaints

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

How does Green Stock 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 Green Stock 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.
Napa County3953620126.5 kW0.0%See county ranking →
Contra Costa County65220126.4 kW0.0%below ranking floor (under 250 installs)
Solano County51020136.2 kW0.0%below ranking floor (under 250 installs)
Alameda County25120124.5 kW0.0%below ranking floor (under 250 installs)
Santa Clara County22120135.0 kW0.0%below ranking floor (under 250 installs)
Sonoma County16120157.5 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.

Green Stock 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 Integrity7.3/10

Reviewers mostly describe Green Stock Solar’s sales process as clear, patient, and low-pressure. People frequently say the team helped them understand options and compare proposals, while one review raises a concern about follow-up around a roof-related sequence of work.Solar.com's composite of published customer feedback, not a customer quote

Clear proposal guidance. Reviewers repeatedly say the team took time to explain options and tailor recommendations to the home and usage needs. Representative review excerpt: "The team at Green Stock spent a lot of time helping me understand my options, and giving me advice based on the size of my house and how much electricity..."

Low-pressure quoting. Several customers describe getting straightforward quotes and feeling confident after comparing proposals. Representative review excerpt: "This year we were determined was the year and did our research, got 4 competing quotes and when we met David with Green Stock we knew we found our guy."

Roof-related follow-up issue. One reviewer reports a problem tied to re-installing rails and panels after roof work, which makes this area feel mostly positive with a small watch-out. Representative review excerpt: "Andy and two of his co-workers returned after the roof was completed to re-install the rails and panels and to re-hook up the system."

Price & financing transparency

Price Transparency6.7/10

Feedback on pricing and financing is generally favorable, with several reviewers saying Green Stock Solar was reasonably priced and transparent about the process. At the same time, a small number of reviews point to timing-related friction, including permit timing and other process expectations.Solar.com's composite of published customer feedback, not a customer quote

Reasonable pricing. Reviewers say the company’s price, service, and installation speed compared favorably in their quotes process. Representative review excerpt: "The other 3 quotes were the typical BIG name companies and none of them could compete with David for his price, service, and speed to install and turning on."

Helpful cost explanations. Customers also describe the team as taking time to walk through options and answer questions clearly. Representative review excerpt: "The team at Green Stock spent a lot of time helping me understand my options, and giving me advice based on the size of my house and how much electricity..."

Timing and expectation watch-out. A small number of reviews mention timing-related concerns, including permit timing and process pacing, which keeps this category from reading fully clean. Representative review excerpt: "He warned me that it might take upto 8 weeks to get the permit because the city of Fremont had a bad reputation for processing speed."

Communication & coordination

Communication7.2/10

Most reviewers describe responsive communication and solid project coordination, especially around updates and handoffs during the installation process. There is one notable complaint about difficulty reaching the company during a roof-related timing question, so the pattern is positive overall but not perfect.Solar.com's composite of published customer feedback, not a customer quote

Responsive guidance. Reviewers often say the team was patient, informative, and easy to work with when explaining next steps. Representative review excerpt: "The team at Green Stock spent a lot of time helping me understand my options, and giving me advice based on the size of my house and how much electricity..."

Good status updates. Customers describe receiving timely updates and clear follow-through as work moved forward. Representative review excerpt: "He said it would take a few days, but he called the next morning and told me Enphase already uploaded the data he provided and I could start monitoring my..."

One contact breakdown. One reviewer reports trouble contacting the company when coordinating around roof timing, which is the main communication concern in the set. Representative review excerpt: "I spoke to David several times about the timing of the new roof and when I was ready I was unable to contact him either by company phone, mobile phone..."

Timeline reliability

Timeline Reliability7.2/10

Reviews describe Green Stock Solar as dependable on scheduling, installation pace, and system activation. The category is strongly positive in the available evidence, with no recorded complaints in this review set.Solar.com's composite of published customer feedback, not a customer quote

Fast install and activation. Customers say the team moved efficiently from quote to installation and turn-on. Representative review excerpt: "The other 3 quotes were the typical BIG name companies and none of them could compete with David for his price, service, and speed to install and turning on."

Returned to finish work. One reviewer notes the crew came back after roof completion to re-install rails and panels and reconnect the system. Representative review excerpt: "Andy and two of his co-workers returned after the roof was completed to re-install the rails and panels and to re-hook up the system."

Schedule reliability. Several reviewers describe the timeline as smooth and say the work was completed as expected. Representative review excerpt: "We have had our system for nine months now and could not be happier."

Workmanship & site care

Workmanship8.0/10

Workmanship is one of the strongest areas in the review corpus. Reviewers consistently describe careful crews, clean installations, and solid follow-through on city or inspection-related requirements, with no complaints in this category.Solar.com's composite of published customer feedback, not a customer quote

Careful around the home. Reviewers say the installation crews were kind, careful around the roof and house, and professional on site. Representative review excerpt: "Also the guys doing the work on and around our home were very kind and careful around the roof and the house and over all did a perfect job !!"

Clean, neat work. Customers describe the finished installation as tidy, including low-visibility conduit and a clean overall appearance. Representative review excerpt: "The installation was clean and neat - no conduit showing on the roof."

Passed requirements. Several reviewers note the work was completed quickly and passed city requirements or inspections. Representative review excerpt: "The arrays used high quality solar panels, the work was done quickly and passed all city requirements."

Long-term support & performance

Long-Term Support7.8/10

Post-install feedback is very positive overall, with reviewers describing good monitoring setup, responsive fixes, and strong ongoing system performance. There is one complaint about maintenance warranty handling after a home sale, so the theme is strong support with a narrow exception.Solar.com's composite of published customer feedback, not a customer quote

Monitoring and visibility. Reviewers say they were able to start monitoring quickly and track system health and production easily. Representative review excerpt: "He said it would take a few days, but he called the next morning and told me Enphase already uploaded the data he provided and I could start monitoring my..."

Quick fixes after issues. Customers report that when a problem came up, the crew returned promptly and resolved it. Representative review excerpt: "The crew came back right away, took care of it, and it has been flawless ever since."

Warranty concern after sale. One reviewer says maintenance warranty coverage changed after a home sale, which is the main post-install complaint in the set. Representative review excerpt: "They will ditch your maintainence warranty if you sell your house to new owner.."

Bottom line: Green Stock Solar’s review profile is broadly positive, with especially strong marks for workmanship, timeline reliability, and post-install performance. The main areas to watch are price/financing clarity and a few isolated communication or warranty-related complaints, though those concerns are uncommon in the analyzed reviews.

How this is built: category scores and summaries weigh the company's full published rating record (3 Google reviews averaging 3.7 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 Green Stock Solar

Company background from published business information and licensing records.

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.
11
2012
19
'13
46
'14
53
'15
47
'16
29
'17
27
'18
42
'19
50
'20
46
'21
69
'22
82
'23
36
'24
23
'25
19
'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 Green Stock Solar

What do customers say in Green Stock Solar reviews?

We analyzed 32 substantive published customer reviews of Green Stock 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 Green Stock Solar installed?

Green Stock Solar appears as installer of record on 574+ 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 Green Stock 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.