Best solar companies California Slingshot Power

Slingshot Power Reviews

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

929verified installs in California utility records*
2recent installs, 2025-26 records*
2008first year in county records
5.2/10Solar.com Score · 21 reviews analyzed

Solar.com Installer Score for Slingshot Power

One score, computed the same way for every installer. We read the full text of all 21 substantive published Slingshot Power review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

5.2/10

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

Synthesized from 21 substantive customer review texts (22 published reviews collected).

Google 1.9★ · 18 reviewsYelp 2.3★ · 4 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.3.5

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.6.4

6 reviews speak to this · 3 praise · 3 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.3

6 reviews speak to this · 2 praise · 4 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.4.4

18 reviews speak to this · 0 praise · 18 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.6.1

6 reviews speak to this · 1 praise · 5 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.6.7

3 reviews speak to this · 2 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.5.7

12 reviews speak to this · 0 praise · 12 complaints

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

How does Slingshot Power 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 Slingshot Power 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.
Santa Clara County491120084.9 kW0.0%See county ranking →
Alameda County173020134.2 kW1.2%below ranking floor (under 250 installs)
San Mateo County86020144.6 kW2.3%below ranking floor (under 250 installs)
Contra Costa County83120144.9 kW0.0%below ranking floor (under 250 installs)
Placer County39020155.5 kW2.6%below ranking floor (under 250 installs)
Fresno County16020165.9 kW0.0%below ranking floor (under 250 installs)
San Joaquin County16020155.7 kW12.5%below ranking floor (under 250 installs)
El Dorado County15020156.3 kW6.7%below ranking floor (under 250 installs)
Santa Cruz County10020143.4 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.

Slingshot Power 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 Integrity6.4/10

Reviewers give Slingshot Power a mixed read on sales and proposal quality.Solar.com's composite of published customer feedback, not a customer quote

Helpful quoting and engagement. These comments suggest the initial presentation can land well with customers looking at multiple options. Representative review excerpt: "Lots of engagement when selling the service and installing."

Proposal and financing concerns. Other reviewers describe confusion or disappointment after signing, including concerns about financing explanations and payment timing. The complaints center on whether the original sales pitch matched what happened later in the process. Representative review excerpt: "Slingshot sales rep convinced me to pay $3500 to bring my interest rate down, which I later came to find out that it was a total lie after I spoke..."

Post-sale expectations not met. A separate complaint pattern describes customers paying early and then encountering delays or a process that did not match the original schedule. This points to a gap between the proposal stage and delivery stage for some reviewers. Representative review excerpt: "They took no time in collecting my money for a solar install, however after that there were so many delays that 3 weeks after my initial install date I decided..."

Price & financing transparency

Price Transparency6.3/10

Feedback on pricing and financing is mixed, with a few reviewers describing good pricing while others report problems around deposits, promised rebates, and follow-through on money-related commitments. The review pattern suggests that financial clarity is an area where some customers felt unsupported after the sale.Solar.com's composite of published customer feedback, not a customer quote

Deposit and refund complaints. Other reviewers report difficulty getting deposits returned after canceling, along with delays or repeated promises when asking about money owed back. The concern is less about the quoted price and more about what happened after payment. Representative review excerpt: "This place is horrible; we called to cancel and have been waiting for a month and there was no refund of our deposit."

Promised incentive timing issues. Reviewers also mention promised rebates or referral payments that were not received when expected. These complaints focus on timing and follow-through rather than the upfront proposal itself. Representative review excerpt: "We referred our neighbor and instead of giving us $500 as promised, they just constantly tell you they just put it in the mail."

Pricing price reports. Some reviewers say the price looked favorable at the time of purchase. These comments are mostly about the initial offer rather than the full payment or refund process. Representative review excerpt: "Good price but very poor after sales support."

Communication & coordination

Communication4.4/10

Communication is one of the weakest areas in the review set. Reviewers repeatedly describe slow replies, missed handoffs, and long stretches without updates, including during active projects and after issues came up.Solar.com's composite of published customer feedback, not a customer quote

Hard to reach after the sale. A common complaint is that calls and messages went unanswered or were only met with delayed follow-up. Reviewers say the company often became difficult to reach once a project was underway. Representative review excerpt: "It’s been such a bad experience with them , they hardly respond to your calls or messages and haven’t done anything so far which has been productive ."

Responsibility passing between staff. Some reviewers describe confusion over who owned next steps, with different contacts passing issues back and forth. That created frustration when customers were waiting for a clear update or action. Representative review excerpt: "Paul and Nadine keep punting things on each other and no response for weeks regarding text messages and calls."

Limited response after issues arise. Several comments say the communication problem continued after installation, including during service or billing follow-up. Reviewers report unanswered emails and repeated waiting for promised callbacks. Representative review excerpt: "They completely stopped responding my email."

Timeline reliability

Timeline Reliability6.1/10

Timeline feedback trends negative, even though there is one positive signal in the review set. Reviewers most often describe permitting delays, missed service visits, and installations or fixes taking longer than expected.Solar.com's composite of published customer feedback, not a customer quote

Permit and activation delays. Reviewers report waiting months for permits or activation-related steps after installation. The pattern suggests that the handoff from install to approval and follow-up can stall for some customers. Representative review excerpt: "Got the solar installed with them and even 4 months still waiting for city permit."

Missed appointments and repeated rescheduling. Other complaints describe repeated schedule changes, technicians not showing up, or parts taking too long to be installed. These reviews point to unreliable completion timing once a project is already in motion. Representative review excerpt: "Every other week they schedule someone to fix it, either they don’t show up or if they do they have no idea what to do."

One positive selection experience. A small number of reviewers describe a smooth decision process and did not raise schedule concerns in their comments. This is the strongest positive note in the timing category. Representative review excerpt: "I contacted multiple solar companies and after all the consultations were complete, I chose Slingshot."

Workmanship & site care

Workmanship6.7/10

Most workmanship comments are positive, but the sample is small. Reviewers mention professional work and solid installation quality, while one complaint raises concerns about cleanup and site damage being left for the customer to address.Solar.com's composite of published customer feedback, not a customer quote

Professional installation reports. Some reviewers describe the crew’s work as professional and the overall installation as good. These comments suggest the physical install itself was satisfactory for those customers. Representative review excerpt: "They have done very good professional job."

Positive equipment and quote experience. A separate reviewer tied a favorable quote to better panels and a strong overall impression. While not a direct workmanship review, it reinforces a generally favorable view in the installation-related feedback. Representative review excerpt: "Andy's quote came in lower than the other 3, while offering better panels."

Cleanup and repair concerns. One reviewer says they were left to deal with broken roof tiles, stucco damage, and permit issues after the work was done. That points to at least one site-care complaint in the installation process. Representative review excerpt: "They make you run around for everything - for fixing broken roof tiles, fixing the hole they created in the stucco, city permit etc."

Long-term support & performance

Long-Term Support5.7/10

Post-install support is a recurring concern in the reviews. Customers report systems not producing, inverter or panel issues, and difficulty getting warranty or monitoring help after the initial installation was complete.Solar.com's composite of published customer feedback, not a customer quote

System production problems. Several reviewers say their systems stopped producing energy or were not working as expected after installation. These comments focus on ongoing performance rather than the original install day. Representative review excerpt: "Our system is not producing any energy since September, and I contacted the installer Slingshot power ."

Warranty service delays. Other reviewers report trying for months to get warranty help or a repair response. The recurring issue is a lack of timely follow-through once service is needed. Representative review excerpt: "Been trying to get warranty service on several bad panels for months but no phone call, text or e-mail ever gets a response."

Monitoring and repair support complaints. Reviewers also mention trouble getting help with monitoring, inverter problems, or parts that needed attention under warranty. The feedback suggests support after turn-on can be inconsistent. Representative review excerpt: "So far Nadine Marcias and Paul Sherer never really help to get the warranty and monitor service."

Bottom line: SLINGSHOT POWER’s reviews are strongest on the initial quote and some installation-quality comments, but the overall profile is pulled down by repeated complaints about communication and post-install support. Reviewers frequently describe delays, hard-to-reach staff, and unresolved service issues after the system was installed.

How this is built: category scores and summaries weigh the company's full published rating record (18 Google reviews averaging 1.9 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 Slingshot Power

Company background from published business information and licensing records.

Also files CPUC records as: Slingshot Power, Pbc, Slingshot Solar.

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.
1
2008
3
'13
84
'14
124
'15
214
'16
95
'17
109
'18
104
'19
104
'20
76
'21
46
'22
42
'23
4
'24
2
'25

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 Slingshot Power

What do customers say in Slingshot Power reviews?

We analyzed 21 substantive published customer reviews of Slingshot Power in full. The company's Solar.com Installer Score is 5.2/10, 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 Slingshot Power installed?

Slingshot Power appears as installer of record on 929+ 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 Slingshot Power'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.