Best solar companies California West Coast Solar

West Coast Solar Reviews

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

7,431verified installs in California utility records*
385recent installs, 2025-26 records*
2009first year in county records
8.6/10Solar.com Score · 2,516 reviews analyzed

Solar.com Installer Score for West Coast Solar

One score, computed the same way for every installer. We read the full text of all 2,516 substantive published West Coast 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

8.6/10

Synthesized from 2,516 substantive customer review texts (2,955 published reviews collected).

Google 5.0★ · 2,732 reviewsYelp 4.2★ · 223 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.8.4

385 reviews speak to this · 360 praise · 22 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.7.0

181 reviews speak to this · 137 praise · 43 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.7

720 reviews speak to this · 619 praise · 96 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

295 reviews speak to this · 243 praise · 48 complaints

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

915 reviews speak to this · 890 praise · 22 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.8.5

493 reviews speak to this · 413 praise · 76 complaints

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

How does West Coast 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 West Coast 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.
Contra Costa County2,6217920097.3 kW1.6%See county ranking →
San Diego County1,94314720105.6 kW0.3%See county ranking →
Yolo County1,0439820126.1 kW0.0%See county ranking →
Alameda County5222420095.6 kW3.8%See county ranking →
Santa Clara County400520113.1 kW12.8%See county ranking →
San Joaquin County267520127.3 kW1.5%See county ranking →
Solano County144520115.8 kW7.6%below ranking floor (under 250 installs)
San Mateo County118520125.0 kW39.8%below ranking floor (under 250 installs)
El Dorado County71220138.4 kW1.4%below ranking floor (under 250 installs)
Orange County54020126.3 kW3.7%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.

West Coast 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 Integrity8.4/10

Reviewers most often describe the sales process as clear, knowledgeable, and low-pressure. A smaller set of complaints mentions warranty clarity, estimate accuracy, and occasional mismatch between expectations and what was ultimately delivered.Solar.com's composite of published customer feedback, not a customer quote

Clear, low-pressure sales. Many reviewers say the proposal process was straightforward and easy to understand, with staff explaining options clearly and without heavy pressure. Representative review excerpt: "He was great - clearly had lots of experience in this space, explained everything clearly, and didn’t make it feel like a high pressure sales experience."

Helpful quoting and follow-through. Customers also report that quotes were handled responsively and that questions were answered in a practical, informative way. Representative review excerpt: "Because I was genuinely curious about lowering my electrical costs with a more efficient unit, he kindly sent over a replacement quote by email for me to look over at..."

Watch-outs on expectations. A smaller number of reviews describe confusion around warranty details, contract language, or what was included in the original proposal, so some customers say they needed clarifications before or after signing. Representative review excerpt: "Equipment warranty needs to be clarified before signing on the dot."

Price & financing transparency

Price Transparency7.0/10

At the same time, complaints are material enough to note, especially around unexpected charges, service-item pricing, and payment or refund-related friction.Solar.com's composite of published customer feedback, not a customer quote

Pricing quotes. Reviewers describe a recurring pattern in this area. Representative review excerpt: "West Coast gave me a very competitive price (I had 3 quotes) and their salesman Mike Johnson is the best."

Helpful payment setup. Some customers mention that payment and financing steps were handled in a workable, practical way once the job was underway. Representative review excerpt: "In the end they had someone make a special trip to my home to take the credit card through an app payment system."

Pricing concerns to watch. Other reviews report charges that felt high or unexpected, including specific service items and add-on work, which left them feeling that pricing was not fully transparent. Representative review excerpt: "Overall, WC was a strange interaction, I was expecting a way more efficient process here, they also charged me an exhorbitant fee to replace a $10 hose."

Communication & coordination

Communication7.7/10

Reviewers frequently praise responsiveness, proactive updates, and helpful follow-up after installation. The main complaints involve missed appointments, slow replies, and occasional breakdowns between office and field teams.Solar.com's composite of published customer feedback, not a customer quote

Responsive follow-up. Many customers say staff were easy to reach, answered questions, and followed through with timely callbacks and updates. Representative review excerpt: "After installation I had a lot of questions about the system and the Installation Manager Alexey called me to go through and answer each of my questions."

Good handoffs and support. Reviews also note that concerns were communicated well to the installation team and that crews stayed on top of the job once work began. Representative review excerpt: "He addressed specific concerns I had with the install and it was clear he communicated those concerns to installation team."

Coordination gaps. A smaller set of reviews describe delayed responses, unanswered emails, or scheduling confusion, suggesting that communication can be inconsistent when issues need extra follow-up. Representative review excerpt: "Documents arrived with no explanation and nobody bothered to call us to tell us what they were, nor did they answer our emails."

Timeline reliability

Timeline Reliability7.2/10

Customers often report timely starts, efficient work, and generally smooth permit handling. There are still complaints about delays, missed windows, and slower activation or paperwork steps, so the timeline experience is not uniform across reviews.Solar.com's composite of published customer feedback, not a customer quote

Timely work and scheduling. Many reviewers say crews arrived on time and completed work efficiently, with projects moving along as expected. Representative review excerpt: "On time and took ti.e to itemize work performed."

Permit handling support. Some customers specifically note that permit paperwork and city communication were handled for them, which helped keep the process organized. Representative review excerpt: "Thankfully west coast solar submitted all of our permit paperwork for us and did all of the communicating with the city."

Delays and activation friction. Other reviews describe postponed appointments, slower parts or paperwork timing, or activation steps taking longer than expected, especially when outside agencies or handoffs were involved. Representative review excerpt: "It took 5 weeks for the part to be ordered and to have a technician deliver and install the equipment."

Workmanship & site care

Workmanship9.0/10

Workmanship is a major strength in the review corpus, with frequent praise for professional crews, clean job sites, and careful treatment of the home. Complaint volume is low relative to the very large set of positive comments, though a few reviewers do mention post-install issues or follow-up concerns.Solar.com's composite of published customer feedback, not a customer quote

Professional, careful installs. Reviewers repeatedly describe the crews as skilled, courteous, and attentive to keeping the work area clean and protected during installation. Representative review excerpt: "The crew from West Coast did an excellent job installing our new AC and heat pump."

Strong attention to detail. Customers also mention thorough installation work and clear explanations after the job, which adds to the sense of professionalism. Representative review excerpt: "From the time of first contact and estimate (where Sergy spent almost 2 hours evaluating our home and duct work to get central air and heat) to the delivery and..."

Occasional follow-up issues. A small number of reviews mention later-discovered issues or gaps that needed additional attention after the initial install was completed. Representative review excerpt: "They just installed it last October l, but he discovered that there was a leak and the charge was low as was the refrigerant."

Long-term support & performance

Long-Term Support8.5/10

Post-install feedback is largely favorable, with many reviewers saying systems operated well and service follow-up was helpful when issues came up. Still, some customers report unresolved technical problems, warranty frustration, or difficulty getting support after the system was up and running.Solar.com's composite of published customer feedback, not a customer quote

Helpful post-install service. Many reviewers say technicians returned promptly, explained system behavior clearly, and provided maintenance or troubleshooting support after installation. Representative review excerpt: "They perform bi-annual maintenance for us and even when we encountered some technical issues with our system, they send their techs out right away (shout-out to Christian Collins for being..."

Systems running well. Several customers report that their systems were operating properly and, in some cases, efficiently after the work was completed. Representative review excerpt: "Our system (installed by West Coast) is operating perfectly and so efficiently."

Support issues to note. A smaller set of reviews describe systems that needed repeated attention or support that felt slow to resolve, especially when a problem appeared after the initial install. Representative review excerpt: "The sales and installation process were fine, but since my solar system stopped working months ago, the customer service has been completely unresponsive, with many false promises regarding fixing my..."

Bottom line: WEST COAST SOLAR’s review profile is strongest in workmanship and generally positive in sales, communication, and long-term support. The most consistent caution areas are price transparency and timeline reliability, where reviewers describe occasional surprises, delays, or follow-up friction. Overall, the corpus suggests a mostly favorable customer experience with a few recurring watch-outs around expectations, scheduling, and post-install responsiveness.

How this is built: category scores and summaries weigh the company's full published rating record (2,518 Google reviews averaging 5.0 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 West Coast Solar

Company background from published business information and licensing records.

Also files CPUC records as: West Coast.

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
2007
5
'09
29
'10
15
'11
79
'12
150
'13
274
'14
425
'15
708
'16
523
'17
630
'18
931
'19
638
'20
661
'21
789
'22
967
'23
305
'24
311
'25
76
'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 West Coast Solar

What do customers say in West Coast Solar reviews?

We analyzed 2,516 substantive published customer reviews of West Coast Solar 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 West Coast Solar installed?

West Coast Solar appears as installer of record on 7,431+ 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 West Coast 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.