Best solar companies California Installation Services of San Diego

Installation Services of San Diego Reviews

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

12verified installs in California utility records*
0recent installs, 2025-26 records*
2013first year in county records
8.1/10Solar.com Score · 96 reviews analyzed

Solar.com Installer Score for Installation Services of San Diego

One score, computed the same way for every installer. We read the full text of all 96 substantive published Installation Services of San Diego review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

8.1/10

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

Synthesized from 96 substantive customer review texts (97 published reviews collected).

Google 5.0★ · 97 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.7.4

53 reviews speak to this · 53 praise · 0 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.7

16 reviews speak to this · 15 praise · 1 complaints

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

62 reviews speak to this · 62 praise · 0 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

38 reviews speak to this · 38 praise · 0 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.7.8

66 reviews speak to this · 65 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.7.0

41 reviews speak to this · 40 praise · 1 complaints

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

How does Installation Services of San Diego 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 Installation Services of San Diego 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.
San Diego County12020133.8 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.

Installation Services of San Diego reviews: what customers say

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

Sales & proposal integrity

Sales Integrity7.4/10

Reviewers consistently describe the sales process as clear, helpful, and low-pressure. The strongest themes are straightforward explanations, fair-appearing proposals, and financing guidance that set expectations well at the start of the project.Solar.com's composite of published customer feedback, not a customer quote

Clear explanations. Reviewers say the team took time to explain the solar process, answered questions thoroughly, and helped set expectations without pushing for a sale. Representative review excerpt: "He took the time to explain every aspect of the solar process, answered all our questions thoroughly, and never once pressured us."

Fair proposal experience. Several reviewers describe the quotes as easy to compare and say the pricing and financing discussion felt reasonable and knowledgeable.

Low-pressure approach. Reviewers also mention that the team stayed away from high-pressure tactics, which made the sales experience feel calmer and more comfortable. Representative review excerpt: "After turning away countless high pressure solar sales people away over the years, I'm so glad that I was recommended to Seth and his team at San Diego County Solar..."

Price & financing transparency

Price Transparency6.7/10

Feedback on pricing and financing is mostly positive, with reviewers saying costs were explained clearly and financing was easier to navigate. This category is a little more mixed than others because there is a small amount of concern around pricing and cost expectations.Solar.com's composite of published customer feedback, not a customer quote

Cost explanations. Reviewers say the team clearly explained the costs involved and helped make the financing conversation easier to understand. Representative review excerpt: "From the first contact Tim was courteous and clearly explained the costs involved in a systems check."

Financing support. Some customers mention getting help through the financing process, which made the purchase feel more manageable. Representative review excerpt: "I wanted to finance the bulk of the cost and Seth helped me understand how to go through that process as well."

Price watch-out. There is a small complaint pattern tied to price and incentive timing, so this area reads more cautious than the strongest categories.

Communication & coordination

Communication7.7/10

Reviews describe responsive communication and steady project coordination throughout the installation process. Customers often mention that the team handled scheduling, handoffs, and follow-up without making them manage the details themselves.Solar.com's composite of published customer feedback, not a customer quote

Responsive support. Reviewers say the team was easy to deal with and provided good communication throughout the project. Representative review excerpt: "Their workmanship was high quality, they were friendly and respectful on-site, and communication throughout the process was very good."

Scheduling help. Customers also report that service managers scheduled work efficiently and kept the process moving. Representative review excerpt: "Once that arrived I contacted Tim the service manager and he scheduled me in time to have the old one removed and have the new one installed."

Direct coordination. Some reviewers note that the company coordinated directly with roofers or other trades, which reduced the burden on the homeowner. Representative review excerpt: "They communicated directly with the roofer (so we didn't have to serve as a middleman in the communications,) and coordinated schedules with them to ensure the mounts for the solar..."

Timeline reliability

Timeline Reliability7.2/10

Reviewers generally say the company handled permits, inspections, and utility coordination smoothly. The overall picture is positive, with several mentions of efficient scheduling and timely activation steps.Solar.com's composite of published customer feedback, not a customer quote

Efficient permitting. Reviewers say the installation and permitting process were handled efficiently, with paperwork and utility coordination completed promptly. Representative review excerpt: "The installation and permitting process were handled efficiently, with paperwork and utility coordination completed promptly and thoroughly."

Inspection success. Customers also report smooth inspection outcomes and timely completion of the activation steps after install. Representative review excerpt: "Passed inspection first time, PTO came through shortly after, and they handled the SDCP rebate paperwork, with the check arriving faster than estimated."

Fast scheduling. Some reviewers mention being scheduled quickly, including same-week timing for certain service visits. Representative review excerpt: "Tim and Mason got me scheduled the same week!"

Workmanship & site care

Workmanship7.8/10

Feedback on workmanship is strongly positive, with reviewers praising professional crews, careful installation, and attention to detail. Customers also describe respectful on-site behavior and good cleanup, while only a very small amount of concern appears in the category overall.Solar.com's composite of published customer feedback, not a customer quote

Professional crews. Reviewers frequently describe the installers as professional, respectful, and careful during the work on site. Representative review excerpt: "Their workmanship was high quality, they were friendly and respectful on-site, and communication throughout the process was very good."

Attention to detail. Several customers say the team handled complex installation details well, including upgrades that involved older equipment and new battery integration. Representative review excerpt: "What truly sets SDCS in a rarefied class of its own is how they professionally dealt with the curveballs integrating a new battery with our older panels and several new..."

Quality-focused work. Some reviewers specifically praise the quality of the materials and the pride the crew seemed to take in the finished job. Representative review excerpt: "I was previously in the construction industry and can attest that the San Diego County Solar team take immense pride in the quality of their work, quality of materials used..."

Long-term support & performance

Long-Term Support7.0/10

Post-install feedback is mostly positive, especially around service follow-up, repair help, and responsiveness after the system is already in place.Solar.com's composite of published customer feedback, not a customer quote

Helpful service follow-up. Reviewers say the service team stayed involved after installation and helped resolve issues or coordinate replacement work when needed. Representative review excerpt: "Once that arrived I contacted Tim the service manager and he scheduled me in time to have the old one removed and have the new one installed."

Fast service response. Customers mention prompt service during hot weather and appreciate that the company was responsive after turn-on. Representative review excerpt: "I was particularly pleased with the fast service during this very hot summer."

Post-install watch-out. There is a small complaint pattern here, so this category is best read as generally strong with limited concerns around longer-term service support. Representative review excerpt: "For home owners like us, whose original solar installation company has vanished, if your system stops working, search no further, San Diego County Solar is the one we strongly recommend."

Bottom line: Solar.com’s review data for INSTALLATION SERVICES OF SAN DIEGO is mostly positive across sales, communication, workmanship, and scheduling. The main areas with a little more caution are price and financing transparency, plus long-term support, where complaint activity is limited but present. Overall, reviewers most often describe a clear, responsive, and professional installation experience.

How this is built: category scores and summaries weigh the company's full published rating record (97 Google reviews averaging 5.0 stars), the most recent and most relevant review texts, and recurring feedback themes verified acrossGoogle. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.

About Installation Services of San Diego

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.
5
2013
2
'15
5
'16

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 Installation Services of San Diego

What do customers say in Installation Services of San Diego reviews?

We analyzed 96 substantive published customer reviews of Installation Services of San Diego in full. The company's Solar.com Installer Score is 8.1/10, 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 Installation Services of San Diego installed?

Installation Services of San Diego appears as installer of record on 12+ 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.

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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.