Best solar companies California Kingdom Solar

Kingdom Solar Reviews

Based in Livermore, CA. This profile is built from public installation records and published ratings, not paid placement.

485verified installs in California utility records*
38recent installs, 2025-26 records*
2017first year in county records
8.3/10Solar.com Score · 147 reviews analyzed

Solar.com Installer Score for Kingdom Solar

One score, computed the same way for every installer. We read the full text of all 147 substantive published Kingdom 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

8.3/10

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

Synthesized from 147 substantive customer review texts (159 published reviews collected).

Google 4.9★ · 94 reviewsYelp 4.9★ · 65 reviews

Updated September 23, 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.10.0

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.5

61 reviews speak to this · 61 praise · 0 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.6

31 reviews speak to this · 29 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.9

88 reviews speak to this · 86 praise · 2 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

65 reviews speak to this · 62 praise · 2 complaints

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

95 reviews speak to this · 94 praise · 1 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.8.1

59 reviews speak to this · 59 praise · 0 complaints

#4 of 1,089 scored in California by Solar.com Installer Score

How does Kingdom 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 Kingdom 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.
Alameda County2692220175.4 kW0.0%See county ranking →
Contra Costa County158520177.2 kW0.0%below ranking floor (under 250 installs)
Santa Clara County31720177.5 kW0.0%below ranking floor (under 250 installs)
San Joaquin County27420187.5 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.

Kingdom Solar reviews: what customers say

An independent synthesis of published customer feedback across Google and Yelp, updated September 23, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity7.5/10

Reviewers describe the sales and proposal process as clear, knowledgeable, and generally low-pressure. The strongest theme is that customers felt listened to and understood the system design and contract expectations.Solar.com's composite of published customer feedback, not a customer quote

Clear, informed proposals. Reviewers say the proposal process was detailed and understandable, with explanations that helped them make design choices. Several note that the sales side felt honest and knowledgeable. Representative review excerpt: "Based on Chris's initial proposal as well as other competing bids, I did a lot of research and ended up changing some of the aspects of the system's design based..."

Responsive, consultative sales. Customers repeatedly describe staff as friendly, patient, and willing to explain solar options in simple language. That pattern suggests a consultative sales style rather than a rushed pitch. Representative review excerpt: "If you are looking for knowledge about the solar world, someone would will listen (however long it takes) explain in simple to understand language and so, so kind!"

Trust in the sales conversation. Some reviewers specifically contrast Kingdom Solar with earlier experiences where important details were not disclosed during negotiations. In those reviews, Kingdom Solar is described as more straightforward about expectations. Representative review excerpt: "Before starting with Kingdom Solar, I was working with SunRun who didn't disclose an important fact during negotiations, even when I pressed for the answer."

Price & financing transparency

Price Transparency6.6/10

Reviewers are mostly positive about pricing, describing bids as fair and the company as honest about costs. Still, a small number of complaints mention billing or contract timing concerns, so this category reads as positive overall but not spotless.Solar.com's composite of published customer feedback, not a customer quote

Fair pricing is a common theme. Many reviewers say the pricing felt fair and the overall value was strong. Several also describe the company as honest and straightforward about the financial side of the project. Representative review excerpt: "Kingdom Solar was fabulous--responsive, honest, fairly priced, efficient, crew had great communication and attitude."

Some review narratives mention cost clarity issues. A small number of reviewers report billing or contract-related concerns, including one account that raises questions about how pricing details were handled after signing. These comments are less common than the praise, but they do appear in the corpus. Representative review excerpt: "The only reason this is not a five star review is that after we had already signed the contract and gone ahead with contracting with the roofer, Kingdom Solar called..."

Positive value perception. Other reviewers connect fair pricing with a smooth overall experience and say they were pleased with what they received for the cost. That suggests the company generally earns trust on price, even if a few cases were disputed. Representative review excerpt: "The price was fair and the other big plus was the speed of installation."

Communication & coordination

Communication7.9/10

Reviewers overwhelmingly describe strong responsiveness, clear updates, and good ownership of the project. The complaint pattern is limited, but a few customers report needing repeated follow-ups or not receiving the expected quote.Solar.com's composite of published customer feedback, not a customer quote

Fast responses and clear handoffs. Many customers say the team responded quickly and handled coordination smoothly from estimate through completion. Some reviewers emphasize that communication felt immediate and easy throughout the project. Representative review excerpt: "While all were easy to work with during the estimation phase, Chris stood out by being the most responsive (generally immediate reply), easy to communicate with, and demonstrated the deepest..."

Helpful project ownership. Reviewers also note that the company stayed engaged when questions or issues came up, including cases where the team fixed problems promptly. That suggests strong follow-through during the job itself. Representative review excerpt: "They respond quickly, fix any issues immediately, and don’t mind cleaning up messes from other failed companies."

A few follow-up complaints. A small number of reviewers report needing to chase updates about scheduling or quotes. Those reports are present but clearly outweighed by the larger pattern of positive coordination feedback. Representative review excerpt: "Communication throughout the process required repeated follow-ups from me regarding scheduling, whether the parts had arrived, and when the installation would actually occur."

Timeline reliability

Timeline Reliability7.3/10

Most reviewers describe the schedule as dependable, with permits, installation, and related steps moving efficiently. A few comments mention delay or stress in the broader solar process, so timing is generally positive but not uniformly perfect.Solar.com's composite of published customer feedback, not a customer quote

Efficient project execution. Several reviewers say the work moved quickly once the project was underway, including installations completed in a short window. Others describe permit-to-install coordination as smooth and on track. Representative review excerpt: "Once I signed the contract, the new roof, contracted with a roofer they worked with regularly, and the new solar panels were up in 4 days."

Permits and inspections handled smoothly. Reviewers also report that the company managed permit and installation steps without major friction. In those accounts, the timeline was described as organized and ahead of changing deadlines. Representative review excerpt: "Their professionalism and service were excellent—every step, from permits to installation, was handled seamlessly, and the project was completed ahead of the upcoming tax changes."

Some timing frustrations appear in the corpus. A few reviewers describe broader scheduling stress, including missed expectations about when work would occur. These complaints are limited but show that timing was not flawless for everyone. Representative review excerpt: "Since SunPower kept rescheduling and canceling appointments over a 5 month period, I needed to go with another firm for the job."

Workmanship & site care

Workmanship8.1/10

Reviewers are highly positive about installation quality, crew professionalism, and cleanup. The main complaint pattern is rare and centers more on service-related pricing clarity than on the physical workmanship itself.Solar.com's composite of published customer feedback, not a customer quote

Clean, professional crews. Customers frequently describe the installation crews as neat, professional, and pleasant to work with. That pattern points to strong site care during the job. Representative review excerpt: "The guys who did the install were neat, professional and pretty sweet."

Installation quality is praised. Several reviewers say the full installation went smoothly and left them satisfied with the finished work. Some also mention that the team handled roof-related steps carefully when solar work overlapped with other home projects. Representative review excerpt: "We recently had a solar system installed by Kingdom Solar with over 30 panels and two batteries, and the entire process was smooth from start to finish."

Rare service-pricing complaint. One reviewer raises a caution about making sure the pricing structure for repeat visits is clear in writing. This is an isolated concern in the workmanship category rather than a broad pattern of poor installation. Representative review excerpt: "The technical work was ultimately completed, but customers should obtain the entire pricing structure in writing before scheduling service--including whether every diagnostic, return, or installation visit will trigger a new..."

Long-term support & performance

Long-Term Support8.1/10

Post-install feedback is strongly positive, with reviewers describing systems that perform as expected and support that remains responsive after the job is done. Customers also mention help with repairs and replacement components, which reinforces the sense of ongoing support.Solar.com's composite of published customer feedback, not a customer quote

Systems keep producing well. Reviewers report that systems are working reliably months after installation and are generating the expected output. That suggests solid follow-through after activation. Representative review excerpt: "Now it's nine months later and the Panasonic panel and Enphase microinverter solar power system is working perfectly, generating the amount of power as estimated - which will cover our..."

Help with repairs and service issues. Several comments say the company stayed involved after turn-on, including cases where support was needed to resolve a service issue or replace a component. Those reviews point to active post-install assistance. Representative review excerpt: "He even got me a brand new solar inverter from the service provider."

Problems were worked through. When reviewers mention early challenges, they generally describe the company as staying engaged until the system was functioning properly again. The overall tone here is durable support rather than one-and-done installation. Representative review excerpt: "There were some challenges initially that were more related to the manufacturer of the solar system, but Kingdom Solar was able to work through those challenges."

Bottom line: KINGDOM SOLAR’s review profile is strongly positive overall, with especially good marks for workmanship, post-install support, and communication. The main softer spots are price transparency and timeline reliability, where most reviews are favorable but a small number of complaints mention billing clarity or scheduling follow-through.

How this is built: category scores and summaries weigh the company's full published rating record (94 Google reviews averaging 4.9 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 Kingdom 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.
7
2017
34
'18
43
'19
38
'20
65
'21
119
'22
153
'23
22
'24
39
'25
5
'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 Kingdom Solar

What do customers say in Kingdom Solar reviews?

We analyzed 147 substantive published customer reviews of Kingdom Solar in full. The company's Solar.com Installer Score is 8.3/10, 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 Kingdom Solar installed?

Kingdom Solar appears as installer of record on 485+ 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 Kingdom 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.