Best solar companies California Southwest Sun Solar

Southwest Sun Solar Reviews

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

5,981verified installs in California utility records*
340recent installs, 2025-26 records*
2015first year in county records
7.1/10Solar.com Score · 128 reviews analyzed

Solar.com Installer Score for Southwest Sun Solar

One score, computed the same way for every installer. We read the full text of all 128 substantive published Southwest Sun 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

7.1/10

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

Synthesized from 128 substantive customer review texts (133 published reviews collected).

Google 4.0★ · 65 reviewsYelp 3.6★ · 68 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.8.8

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.5.6

64 reviews speak to this · 40 praise · 24 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.4.5

47 reviews speak to this · 21 praise · 26 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.5.8

56 reviews speak to this · 35 praise · 21 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.7.6

33 reviews speak to this · 32 praise · 1 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.7.7

40 reviews speak to this · 36 praise · 4 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

30 reviews speak to this · 19 praise · 11 complaints

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

How does Southwest Sun 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 Southwest Sun 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.
Orange County2,14117920157.3 kW68.0%See county ranking →
Los Angeles County1,2257820155.6 kW80.0%See county ranking →
Santa Clara County9763020155.9 kW63.6%See county ranking →
San Diego County4411920154.9 kW87.3%See county ranking →
San Bernardino County4131520154.8 kW91.3%See county ranking →
Riverside County2981020155.3 kW92.6%See county ranking →
Alameda County171520154.3 kW74.3%below ranking floor (under 250 installs)
Contra Costa County92320154.7 kW78.3%below ranking floor (under 250 installs)
San Joaquin County63120156.0 kW87.3%below ranking floor (under 250 installs)
Solano County27020164.9 kW92.6%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.

Southwest Sun Solar reviews: what customers say

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

Sales & proposal integrity

Sales Integrity5.6/10

Reviewers are split on sales clarity and proposal quality. Many say the team was professional, helpful, and willing to answer questions, but a meaningful share describe mismatches between expectations and what was delivered, including concerns about added costs or system sizing.Solar.com's composite of published customer feedback, not a customer quote

Helpful, clear sales conversations. Several reviewers say the sales team explained options well, answered questions, and made the buying process feel straightforward. Representative review excerpt: "They were very professional and extremely helpful in answering all the questions we had before we made our decision."

Proposal expectations sometimes missed. Some reviewers report that the final outcome did not match what they thought had been promised, with concerns about system size, contract terms, or follow-through on quoted details. Representative review excerpt: "The solar system does not work as signed in the contract and they ask you to pay more money for additional installation."

Savings and incentive claims questioned. A smaller set of reviewers describe feeling misled by rebate or savings framing, saying the pitch set expectations that did not hold up later. Representative review excerpt: "They lure you in with a $500 rebate and referral, but please, don't sign anything that are from this company."

Price & financing transparency

Price Transparency4.5/10

Feedback on pricing and financing is more negative than positive.Solar.com's composite of published customer feedback, not a customer quote

Higher-than-expected total cost. A recurring complaint is that the final cost or long-term payment burden felt higher than expected, especially when additional installation or financing terms were involved. Representative review excerpt: "The solar system does not work as signed in the contract and they ask you to pay more money for additional installation."

Rebate and payment expectations disputed. Some reviewers say rebate timing or referral messaging made the offer seem more favorable up front than it felt later, with concerns about unexpected charges or payback math. Representative review excerpt: "They lure you in with a $500 rebate and referral, but please, don't sign anything that are from this company."

Pricing rates and financing options. Positive reviews say the company offered attractive pricing, workable leasing or financing choices, and in some cases honored the original quote. Representative review excerpt: "They were able to get me the lowest interest rate and the best option for my home."

Communication & coordination

Communication5.8/10

Communication receives a mixed-to-mildly positive reception. Reviewers often praise follow-up, step-by-step coordination, and turnkey handling, but there are also repeated reports of slow callbacks, limited post-install response, and unresolved service communication.Solar.com's composite of published customer feedback, not a customer quote

Good follow-up during the project. Many reviewers say staff stayed in touch, explained next steps, and kept the process moving through the install and permit stages. Representative review excerpt: "He was very professional and followed up along each step of the process, great communication."

Turnkey coordination praised. Some customers appreciate that the company handled multiple parts of the project from consultation through installation, which reduced the amount they had to manage themselves. Representative review excerpt: "It's also great to know that they handle everything from A to Z from providing the best rates on solar panels to installing it through their in house team too."

Post-install response gaps. A number of reviewers report difficulty getting callbacks or getting issues addressed after the system was already installed, especially when service problems arose later. Representative review excerpt: "Still waiting for at least a courtesy call back, first of two service visits to find the problem with our system, still waiting over a month now, for the new..."

Timeline reliability

Timeline Reliability7.6/10

Timeline performance is a relative strength in the review set. Most reviewers describe projects as on time or moving smoothly through consultation, permits, inspections, and completion, and complaints about schedule delays are rare.Solar.com's composite of published customer feedback, not a customer quote

Smooth permit-to-completion flow. Reviewers frequently say the process moved in a timely manner and stayed organized through consultation, permitting, inspections, and final completion. Representative review excerpt: "The whole process was very smooth and at a timely manner (which includes consultation, permit, inspections, and completion)."

On-time completion reported. Several customers say the work was completed on schedule and that the install or activation process went as planned. Representative review excerpt: "The company came out to install solar panels and the customer service was incredible and the job was completed on time with no issues."

Rare timeline complaint. Only a small number of reviews raise timing concerns, so delays appear uncommon in this sample. Representative review excerpt: "They took advantage of my mother in law."

Workmanship & site care

Workmanship7.7/10

Workmanship reviews are mostly favorable, with many customers praising clean job sites, efficient crews, and solid installation work. A few complaints do appear around cleanup, code-related issues, or roof-related workmanship concerns, but they are not the dominant pattern.Solar.com's composite of published customer feedback, not a customer quote

Clean, organized crews. Reviewers often say the installers worked efficiently and left the jobsite neat and organized. Representative review excerpt: "The installers were very efficient and kept the jobsite clean and organized."

Installation quality generally praised. Many customers describe the install as well handled, with no major issues reported during the work itself. Representative review excerpt: "This company did a great job of installing solar panels for us!"

A few workmanship concerns. Some reviewers report problems such as roof-related concerns, cleanup issues, or questions about how components were placed or inspected. Representative review excerpt: "They re-roofed my house 4 years ago and this year rain really put their poor workmanship to test."

Long-term support & performance

Long-Term Support7.0/10

Post-install performance is somewhat positive overall, with several reviewers saying their systems produce as expected and continue working well over time. At the same time, support-related complaints are meaningful, especially around service follow-up, warranty help, and unresolved issues after installation.Solar.com's composite of published customer feedback, not a customer quote

Systems producing well over time. Positive reviews say the system has continued to work well, with some customers reporting meaningful savings or long-term reliable operation. Representative review excerpt: "I got my 16 panels solar from Southwest Sun solar 7 years ago , working good still ."

Savings and ongoing performance reported. Some reviewers say the system has performed well after activation and that their bills dropped as expected. Representative review excerpt: "Billing is shows how much energy you are using and we save about 30-40% off our electricity bill every month."

Service follow-up concerns. Other reviewers describe difficulty getting help after the system was installed, including slow responses when something needed repair or attention. Representative review excerpt: "Never answering call after work done."

Bottom line: Southwest Sun Solar’s review profile is mixed overall, with a stronger showing in timeline reliability and generally solid workmanship. The most consistent concerns center on pricing clarity, financing expectations, and post-install communication, while many reviewers still describe a smooth install process and functioning systems.

How this is built: category scores and summaries weigh the company's full published rating record (65 Google reviews averaging 4.0 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 Southwest Sun Solar

Company background from published business information and licensing records.

Also files CPUC records as: Swss Electrical, South West Sun 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.
211
2015
723
'16
815
'17
662
'18
563
'19
436
'20
544
'21
703
'22
687
'23
416
'24
255
'25
87
'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 Southwest Sun Solar

What do customers say in Southwest Sun Solar reviews?

We analyzed 128 substantive published customer reviews of Southwest Sun Solar in full. The company's Solar.com Installer Score is 7.1/10, 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 Southwest Sun Solar installed?

Southwest Sun Solar appears as installer of record on 5,981+ 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 Southwest Sun 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.