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
8.8/10Solar.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

8.8/10

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 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.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.8.2

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.7.1

31 reviews speak to this · 29 praise · 2 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.8.7

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.7.9

65 reviews speak to this · 62 praise · 2 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.9.0

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.8.9

59 reviews speak to this · 59 praise · 0 complaints

#18 of 678 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 28, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity8.2/10

Reviewers describe Kingdom Solar’s sales process as clear, knowledgeable, and low-pressure overall. Feedback is consistently positive on proposal quality and expectation-setting, with no complaint pattern showing up in the analyzed reviews.Solar.com's composite of published customer feedback, not a customer quote

Clear, helpful proposals. Reviewers say the initial proposals were informative and helped them understand system design choices. Some also describe adjusting the design after discussing the proposal, which suggests the team was open to customer input. 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..."

Knowledgeable, no-pressure guidance. Customers repeatedly describe the sales conversations as friendly, patient, and easy to understand. Reviewers say the team explained options in simple language and took time to answer questions. 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!"

Honest expectations. Several reviews characterize the company as honest and straightforward during the sales stage, with expectations aligning closely to the final project experience. The evidence set contains praise only for this category. Representative review excerpt: "Kingdom Solar was fabulous--responsive, honest, fairly priced, efficient, crew had great communication and attitude."

Price & financing transparency

Price Transparency7.1/10

Reviewers mostly describe pricing as fair and the overall cost experience as clear, though a small number of complaints raise concerns about billing or post-signature changes. The category is still positive overall, but it is the most mixed pricing-related area in the set.Solar.com's composite of published customer feedback, not a customer quote

Fair pricing. Many reviewers say the pricing felt fair and consistent with what they expected from the proposal. Some also connect the value impression to smooth service and solid system results. Representative review excerpt: "The price was fair and the other big plus was the speed of installation."

Straightforward cost experience for most customers. Several reviews describe the company as fairly priced and transparent during the process, with no surprise issues mentioned in those accounts. These comments suggest the pricing conversation is usually handled clearly. Representative review excerpt: "Kingdom Solar was fabulous--responsive, honest, fairly priced, efficient, crew had great communication and attitude."

Isolated billing and contract concerns. A small number of reviewers report issues tied to billing or changes introduced after signing, including concern about transparent billing and added costs after a contract was already in place. Because complaints are rare but present, this category reads as mostly positive with a limited watch-out. 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..."

Communication & coordination

Communication8.7/10

Reviewers overwhelmingly describe Kingdom Solar as responsive and easy to coordinate with. Customers frequently mention prompt callbacks, clear updates, and hands-on project management from estimate through completion, while only a couple of reviews report missed follow-up or slower communication.Solar.com's composite of published customer feedback, not a customer quote

Fast responses and clear updates. Many reviewers say the team replies quickly and stays easy to reach throughout the project. Several describe Chris and the team as highly responsive and clear in their communication. 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..."

Strong handoff and project ownership. Customers report that the company takes ownership of coordination tasks and helps keep projects moving. Some reviewers note that the team followed through on estimates, scheduling, and issue resolution without needing much chasing. 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 gaps. A small number of reviewers say they had to follow up repeatedly for quotes, scheduling, or status updates. These comments are present but limited relative to the strong positive majority. 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 Reliability7.9/10

Reviewers generally describe the project timeline as well managed, including permitting, installation, and activation steps. A few complaints mention delays or the stress of solar scheduling, but most feedback says the work moved at a steady pace and was completed as promised or sooner.Solar.com's composite of published customer feedback, not a customer quote

Permits and install handled smoothly. Several reviewers say the process from permitting through installation was handled seamlessly. Some also report the project finishing ahead of expected deadlines or moving quickly once the contract was signed. 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."

Fast completion after signing. Customers sometimes describe very short installation windows once the project was ready to move forward. These reviews point to good coordination across related work such as roofing and panel reinstallation. 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."

Occasional delay-related frustration. A small number of reviews mention rescheduling, canceled appointments, or the general stress of managing a multi-step solar project. The complaint pattern is limited, but it shows that timeline management was not perfect in every case. 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

Workmanship9.0/10

Reviewers describe the installation crew as professional, neat, and careful with the property. Praise centers on clean workmanship, quick issue fixes, and solid follow-through when roof work or panel removal/reinstallation was involved, with only one review raising a service-pricing caution.Solar.com's composite of published customer feedback, not a customer quote

Neat, professional crews. Customers repeatedly describe the installation team as professional and pleasant to work with. Reviewers also mention good cleanup and a smooth on-site experience. Representative review excerpt: "The guys who did the install were neat, professional and pretty sweet."

Careful work and clean handoff. Several reviews say the crew handled panel removal, roof-related coordination, and reinstallation without trouble. Others note that the team cleaned up issues from earlier work and kept the job site in good shape. Representative review excerpt: "They respond quickly, fix any issues immediately, and don’t mind cleaning up messes from other failed companies."

One service-billing caution. A single review advises getting the full pricing structure in writing before scheduling service visits. This is a limited caution rather than a broad workmanship concern, given the overwhelmingly positive feedback on installation quality. 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 Support8.9/10

Reviewers report strong post-install performance and supportive follow-up after the system is turned on. The category is consistently positive, with comments about production matching expectations, repairs being handled, and service help when equipment needed attention.Solar.com's composite of published customer feedback, not a customer quote

Strong production results. Customers say their systems are performing well after installation, including reports that generation is meeting estimated output. These reviews suggest the systems are delivering the expected long-term performance for many owners. 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..."

Responsive help after turnover. Several reviewers describe the company as continuing to help after the install is finished, including support with repairs and equipment replacement. The feedback suggests post-install service is part of the positive experience for these customers. Representative review excerpt: "He even got me a brand new solar inverter from the service provider."

Issues worked through successfully. Some reviews mention initial challenges with equipment or manufacturer-related issues, but say Kingdom Solar stayed involved and helped resolve them. The overall post-install pattern remains strongly positive. 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: Across 147 substantive reviews, Kingdom Solar’s profile is strongly positive, especially for communication, workmanship, and post-install support. The main area with any meaningful caution is price and financing transparency, where most feedback is positive but a small number of reviews report billing or contract-related concerns.

How this is built: category scores and summaries weigh the company's full published rating record (95 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 8.8/10, 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.