Best solar companies California Paragonsun

Paragonsun Reviews

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

182verified installs in California utility records*
21recent installs, 2025-26 records*
2017first year in county records
8.1/10Solar.com Score · 129 reviews analyzed

Solar.com Installer Score for Paragonsun

One score, computed the same way for every installer. We read the full text of all 129 substantive published Paragonsun 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 129 substantive customer review texts (130 published reviews collected).

Google 4.8★ · 52 reviewsYelp 4.9★ · 78 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.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.6.9

38 reviews speak to this · 36 praise · 2 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.4

19 reviews speak to this · 15 praise · 4 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.9

98 reviews speak to this · 98 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.7.5

57 reviews speak to this · 55 praise · 0 complaints

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

70 reviews speak to this · 70 praise · 0 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.7.5

62 reviews speak to this · 59 praise · 3 complaints

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

How does Paragonsun 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 Paragonsun 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 County781820177.8 kW0.0%below ranking floor (under 250 installs)
Riverside County46120176.1 kW0.0%below ranking floor (under 250 installs)
Los Angeles County33120178.4 kW0.0%below ranking floor (under 250 installs)
San Bernardino County25120177.1 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.

Paragonsun 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 Integrity6.9/10

Reviewers mostly describe PARAGONSUN’s sales process as straightforward, helpful, and low-pressure. The limited complaints center on proposal expectations and clarity, so this reads as generally positive but not spotless.Solar.com's composite of published customer feedback, not a customer quote

Straightforward, low-pressure sales. Reviewers frequently say the team explained options clearly and did not push upsells. Several describe the process as easy to navigate from the first conversation through implementation. Representative review excerpt: "Cori never tried to up-sell at all and she was there for ALL of my questions at any time."

Clear paperwork and approvals. Some reviewers note that PARAGONSUN handled paperwork and utility approvals as part of the process, which helped set expectations for the project flow. Representative review excerpt: "All paperwork is filled out and submitted to the electric company for approvals, and, when necessary, communication and scheduling of roofers like we needed for system 2 (see positive review..."

A few proposal concerns. A small number of reviewers report concerns around initial pricing or expectations and the final outcome, including comments that the quoted price seemed higher than expected even when no added fees were reported. Representative review excerpt: "The initial quote seemed higher than the others, but there were no hidden fees or additional costs, and I was confident they could fix the issue."

Price & financing transparency

Price Transparency6.4/10

Feedback on pricing and financing is mixed. Many reviewers say the company was transparent about costs and walked them through the financial details, but a smaller set of complaints raises questions about pricing expectations, deposits, refunds, or incentive timing.Solar.com's composite of published customer feedback, not a customer quote

Cost explanations were detailed. Several reviewers say the team took time to break down the numbers and explain each part of the project cost, which helped make the financial side feel clearer. Representative review excerpt: "What impressed us most was the depth with which they delved into the cost analysis, not merely presenting figures but walking us through each element, thereby demystifying the financial landscape..."

No hidden-fee reports from some customers. Some reviewers mention that even when the initial quote felt high, they did not encounter surprise charges afterward and felt the pricing was explained up front. Representative review excerpt: "The initial quote seemed higher than the others, but there were no hidden fees or additional costs, and I was confident they could fix the issue."

Some pricing and financing frustrations. A minority of reviewers describe dissatisfaction with aspects of the final pricing experience, including concerns tied to deposits, refunds, or how incentive timing affected the overall cost picture. Representative review excerpt: "I contacted her a handful of times, and she replied quickly, by the end of the day (within the hour in a couple of cases)."

Communication & coordination

Communication7.9/10

Communication is one of PARAGONSUN’s strongest themes in the review set. Reviewers consistently describe responsive follow-up, clear updates, and hands-on coordination across permits, utilities, and post-appointment questions, with no material complaint pattern in this category.Solar.com's composite of published customer feedback, not a customer quote

Responsive and easy to reach. Reviewers repeatedly report quick replies and consistent follow-through from the team, including after initial contact and during active projects. Representative review excerpt: "They even scheduled a follow up call a week after our appointment to confirm that everything was working perfectly."

Good coordination through complex steps. Customers say the company helped manage utility-related issues, handoffs, and scheduling details that came up during the project, which made the process feel organized. Representative review excerpt: "Did a fantastic job handling the swap of my Enphase Gen3 battery system for a Gen4, including managing completely off the script anomalies that the utility invented for my case."

Proactive check-ins. Some reviewers mention follow-up calls and updates after appointments or during system changes, reinforcing a sense of active project ownership. Representative review excerpt: "Our system automatically noticed the alert, immediately charged our batteries to 100%, and sent me an e-mail notification that it was charged and ready in case the winds resulted in..."

Timeline reliability

Timeline Reliability7.5/10

Most reviewers describe PARAGONSUN as dependable on timing, especially around permitting, inspections, and activation. A small number note schedule changes from outside factors such as weather or regulation changes, but the feedback still leans positive overall.Solar.com's composite of published customer feedback, not a customer quote

Projects moved through the process efficiently. Some reviewers say their systems advanced from permitting to final inspection and production in a relatively short period, which they viewed as a strong sign of project management. Representative review excerpt: "From permitting through final inspection to full production, the entire project wrapped up in just 60 days from when we booked — that kind of timeline is remarkable in this..."

Help with permits and follow-ups. Reviewers also mention support with paperwork, photos, app setup, and permit-related steps, which helped keep the job moving. Representative review excerpt: "They were also great with all the follow-ups, paperwork, photos, and getting the app set up, which made things much easier for us."

A few schedule delays were reported. A small number of reviewers say the timeline ran longer than expected because of factors like weather or changing requirements, although they also note that they were kept informed during the delay. Representative review excerpt: "The install ended up taking more time than initially planned due to rain and new regulations, but Victor and Cori kept me updated every step of the way and I..."

Workmanship & site care

Workmanship7.7/10

Reviewers generally praise the quality of the installation work and the professionalism of the crews. Comments frequently mention punctuality, competence, and a smooth jobsite experience, with no material complaint pattern in the evidence set.Solar.com's composite of published customer feedback, not a customer quote

Professional, capable crews. Reviewers say the installers were knowledgeable and handled the work carefully, including projects that involved multiple system components or later additions. Representative review excerpt: "to San Diego), Paragon was the most professional and informed when it came to detecting possible reasons for a panel not working and why my battery would have a "

On-time and efficient work. Some customers specifically mention punctual arrivals and efficient execution during the installation visit. Representative review excerpt: "William showed up on time and did a great job."

Overall satisfaction with workmanship. Reviewers describe the company as professional and trustworthy, and they connect that impression to the quality of the work done on-site. Representative review excerpt: "Based on my experience, I find ParagonSun reliable, very professional, and refreshingly trustworthy, and I would recommend them to anyone who needs quality solar service and professional workmanship."

Long-term support & performance

Long-Term Support7.5/10

Post-install feedback is mostly positive, with reviewers describing strong system performance and helpful service when questions or issues came up. The complaint count is small but worth noting, since a few reviewers raise concerns tied to warranty or ongoing support after installation.Solar.com's composite of published customer feedback, not a customer quote

Support for performance questions. Reviewers say the team helped diagnose system issues and explain possible causes when a panel or battery was not behaving as expected. Representative review excerpt: "to San Diego), Paragon was the most professional and informed when it came to detecting possible reasons for a panel not working and why my battery would have a "

Systems described as working well. Some customers report that their systems were producing as expected and that monitoring or battery behavior was handled satisfactorily after installation. Representative review excerpt: "Our system is no small setup — 21 Hyundai Energy PV panels with Enphase IQ8 microinverters for a rated output of 8.2kW, paired with two Enphase IQ Battery 10C units..."

A few post-install support concerns. A small number of reviewers mention dissatisfaction with warranty-related or after-installation support, indicating that follow-through after the job was not always smooth for everyone. Representative review excerpt: "The company we hired to install solar went bankrupt, leaving all of us high and dry without the warranty they promised."

Bottom line: PARAGONSUN’s review profile is strongest on communication, coordination, and workmanship, with most reviewers describing a responsive and professional experience. Pricing transparency and sales expectations are more mixed, and a smaller set of reviews raises concerns about cost clarity or post-install support. Overall, the review corpus points to a generally positive installer experience with a few recurring watch-outs around financial details and follow-through.

How this is built: category scores and summaries weigh the company's full published rating record (52 Google reviews averaging 4.8 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 Paragonsun

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.
34
2017
32
'18
18
'19
11
'20
9
'21
24
'22
31
'23
8
'24
12
'25
9
'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 Paragonsun

What do customers say in Paragonsun reviews?

We analyzed 129 substantive published customer reviews of Paragonsun 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 Paragonsun installed?

Paragonsun appears as installer of record on 182+ 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 Paragonsun'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.