Best solar companies California Sunvault

Sunvault Reviews

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

479verified installs in California utility records*
124recent installs, 2025-26 records*
2019first year in county records
8.6/10Solar.com Score · 80 reviews analyzed

Solar.com Installer Score for Sunvault

One score, computed the same way for every installer. We read the full text of all 80 substantive published Sunvault review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

8.6/10

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

Synthesized from 80 substantive customer review texts.

Yelp 4.9★ · 80 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.9.9

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.8

38 reviews speak to this · 38 praise · 0 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.7.2

23 reviews speak to this · 22 praise · 1 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.8.3

58 reviews speak to this · 56 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.8.1

61 reviews speak to this · 59 praise · 0 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.8.5

59 reviews speak to this · 58 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.8.3

19 reviews speak to this · 17 praise · 2 complaints

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

How does Sunvault 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 Sunvault 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 County2417220198.1 kW3.3%below ranking floor (under 250 installs)
Alameda County1442420207.4 kW4.9%below ranking floor (under 250 installs)
San Mateo County662220218.2 kW1.5%below ranking floor (under 250 installs)
Contra Costa County28620208.8 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.

Sunvault reviews: what customers say

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

Sales & proposal integrity

Sales Integrity7.8/10

Reviewers describe SunVault’s sales process as clear, responsive, and generally low-pressure. The strongest praise centers on straightforward quotes, helpful explanations, and proposals that matched the work delivered.Solar.com's composite of published customer feedback, not a customer quote

Clear, helpful proposals. Reviewers say the company provided detailed explanations and information that made it easier to understand the project scope and next steps. Representative review excerpt: "SunVault completed the work faster than quoted, worked with me on installation details, did a professional electric and aesthetic job, and provided me with all the information I needed to..."

Pricing pricing in proposals. Reviewers describe a recurring pattern in this area. Representative review excerpt: "Their quote was competitive, the owner is very responsive, and the whole process was easy, smooth, and quick."

Honest sales experience. Customer comments also describe the owner as honest and helpful during the quoting stage. Representative review excerpt: "He is honest and offered us a great deal."

Price & financing transparency

Price Transparency7.2/10

The main watch-out is that a small number of reviews mention dissatisfaction tied to cost or quote comparisons, so transparency appears solid but not flawless.Solar.com's composite of published customer feedback, not a customer quote

Pricing quote pricing. Reviewers describe a recurring pattern in this area. Representative review excerpt: "I ended up going with 16-460 Rec panels and 2-Enphase 5 kw batteries and Sameer's quote was by far the best of the remaining six companies (note: I asked each..."

Clear expectations on costs. Some reviewers report that the quoted amounts matched the project details they discussed, which helped keep the process straightforward. Representative review excerpt: "The higher quotes on the extra piece parts actually corresponded with each of the higher quotes that I had received for the entire system from the six finalists."

Limited cost-related complaints. There is a small amount of negative feedback in this category, but it is rare relative to the overall review base. Representative review excerpt: "Now I had in mind what I want, and I tried to compare it to the quotes I got; I also asked some suppliers for a new quote for my..."

Communication & coordination

Communication8.3/10

Reviewers overwhelmingly describe strong communication, with prompt responses, clear updates, and good project ownership. A couple of complaints mention responsiveness problems, but they are rare relative to the volume of positive feedback.Solar.com's composite of published customer feedback, not a customer quote

Responsive project management. Many reviewers say SunVault stayed responsive and made the process easy by handling coordination and keeping the job moving. Representative review excerpt: "The work only took about 2 1/2 days, and Sameer took care of all the interactions with the city and PG&E, which made things very easy for me."

Smooth handoffs and updates. Reviewers also describe quick follow-up and helpful coordination across different stages of the project, including transfer and scheduling issues. Representative review excerpt: "Once our roofing guys were done installing the roof I pinged Sameer and his team was prompt in coming in and installing the system."

Rare responsiveness complaints. A small number of reviewers report delayed responses or difficulty getting follow-up after installation. Representative review excerpt: "The installer has been unprofessional and unresponsive: they have not returned calls for the past two weeks and, when contacted about a power issue, only told us over the phone..."

Timeline reliability

Timeline Reliability8.1/10

Reviewers generally describe SunVault as dependable on schedule, with several noting faster-than-quoted completion and smooth permitting or activation. A small number of mixed reviews mention short delays, but the overall pattern is timely delivery.Solar.com's composite of published customer feedback, not a customer quote

Finished ahead of schedule. Several reviewers say the project wrapped up faster than quoted and, in some cases, included early utility permission to operate. Representative review excerpt: "Not only did SunVault finish the installation early--they even secured PTO from PG&E before Thanksgiving."

Permitting and inspection handled efficiently. Reviewers also report that SunVault managed transfer, permitting, installation, and inspection in a relatively short timeframe. Representative review excerpt: "Sunvault pulled off the entire transfer, permitting, installation, and inspection in just six weeks!"

Some timing delays. A few reviews mention delays of about a month or a couple of weeks before installation began, which makes the category slightly mixed rather than perfect. Representative review excerpt: "I waited around a month to have the system installed after signing the contract."

Workmanship & site care

Workmanship8.5/10

Reviewers largely describe the installation crews as professional, efficient, and attentive to finish quality. Most feedback is positive on workmanship and cleanup, with only one review pointing to minor inspection-related issues.Solar.com's composite of published customer feedback, not a customer quote

Professional install quality. Reviewers say the crews delivered professional electrical and aesthetic work and handled installation details well. Representative review excerpt: "SunVault completed the work faster than quoted, worked with me on installation details, did a professional electric and aesthetic job, and provided me with all the information I needed to..."

Courteous, efficient crews. Several comments describe the team as professional, honest, and efficient from consultation through completion. Representative review excerpt: "Their team was professional, honest, and efficient from the first consultation through the final install."

Minor inspection fixes reported. A small number of reviewers mention issues such as labeling or breaker corrections discovered during inspection, suggesting occasional cleanup or finish-up work was needed. Representative review excerpt: "The solar install went mostly smoothly but there were a few small issues such as lack of labeling and incorrect breakers that were found at inspection time."

Long-term support & performance

Long-Term Support8.3/10

Reviewers mostly report good post-install outcomes, including system performance, quick integration of new equipment, and helpful follow-through. A couple of complaints mention weak support after the system was running, so long-term service looks strong but not uniform.Solar.com's composite of published customer feedback, not a customer quote

System performance reported positively. Reviewers say equipment came online smoothly and integrated without issues after installation or replacement work. Representative review excerpt: "The new microinverter came online immediately and integrated with my existing Enphase system without any problems."

Helpful follow-through after install. Some comments describe the company as staying engaged before the decision was finalized and through the later stages of the project. Representative review excerpt: "Sameer's quote was the best which obviously helps but what made me choose him over everybody else was how much time he spent with me even before I had decided..."

Post-install support concerns. A small number of reviewers report problems getting callbacks or help after a power issue, which suggests occasional gaps in service follow-up. Representative review excerpt: "The installer has been unprofessional and unresponsive: they have not returned calls for the past two weeks and, when contacted about a power issue, only told us over the phone..."

Bottom line: Across 80 substantive Yelp reviews, SunVault’s profile is rated 8.6/10 overall, with especially strong marks for communication, timeline reliability, workmanship, and long-term support.

How this is built: category scores and summaries weigh the company's full published rating record, the most recent and most relevant review texts, and recurring feedback themes verified acrossYelp. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.

About Sunvault

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.
1
2019
5
'20
18
'21
74
'22
197
'23
72
'24
100
'25
30
'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 Sunvault

What do customers say in Sunvault reviews?

We analyzed 80 substantive published customer reviews of Sunvault in full. The company's Solar.com Installer Score is 8.6/10, 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 Sunvault installed?

Sunvault appears as installer of record on 479+ 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 Sunvault'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.