Best solar companies California Guyou Construction

Guyou Construction Reviews

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

1,330verified installs in California utility records*
49recent installs, 2025-26 records*
2014first year in county records
7.9/10Solar.com Score · 1,065 reviews analyzed

Solar.com Installer Score for Guyou Construction

One score, computed the same way for every installer. We read the full text of all 1,065 substantive published Guyou Construction review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

7.9/10

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

Synthesized from 1,065 substantive customer review texts (1,430 published reviews collected).

Google 4.9★ · 1,430 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.9.7

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.6.4

43 reviews speak to this · 37 praise · 6 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.6.0

27 reviews speak to this · 20 praise · 7 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.4

373 reviews speak to this · 362 praise · 9 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

248 reviews speak to this · 236 praise · 8 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.7.9

690 reviews speak to this · 685 praise · 5 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.7.9

133 reviews speak to this · 126 praise · 7 complaints

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

How does Guyou Construction 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 Guyou Construction 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 County2961020147.1 kW0.3%See county ranking →
Riverside County2911820158.6 kW4.1%See county ranking →
San Diego County259520145.4 kW4.2%See county ranking →
San Bernardino County235720168.2 kW6.4%below ranking floor (under 250 installs)
Los Angeles County213720147.5 kW3.3%below ranking floor (under 250 installs)
Fresno County23020177.1 kW13.0%below ranking floor (under 250 installs)
Ventura County13220157.0 kW15.4%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.

Guyou Construction 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 Integrity6.4/10

Reviewers most often describe the sales process as clear and helpful, with follow-up that left them feeling informed. Still, a smaller set of customers says proposal expectations or contract terms did not line up well with what they believed was promised, so the category reads as mixed-positive overall.Solar.com's composite of published customer feedback, not a customer quote

Clear, helpful sales process. Many reviewers say the initial consultation and proposal process felt straightforward, with staff following up to make sure they understood the system and were satisfied. Representative review excerpt: "Once completed they did a follow up to ensure my understanding of how the new solar system would work and made sure everything was done to my complete satisfaction."

Consultative guidance. Some customers describe sales staff as willing to advise on what fit the project best rather than pushing a one-size-fits-all approach. Representative review excerpt: "And a very special Thank you to salesman Grady DenBoer in Utah who helped us with advice and helped us with the sale of our roof."

Promise and contract concerns. A smaller group reports disappointment that expectations around the proposal or contract did not match the final experience, including feeling pressured or not fully informed. Representative review excerpt: "And when I asked for a copy of proposal his response “I am here to close deal but looks like you are not ready for Solar”."

Price & financing transparency

Price Transparency6.0/10

Overall, this category trends mixed, with praise outweighed by a notable set of transparency concerns.Solar.com's composite of published customer feedback, not a customer quote

Upfront or Pricing pricing. Reviewers describe a recurring pattern in this area. Representative review excerpt: "Recently had them come out to service my solar, they provided up front pricing and were on time."

Good value for the project. Several customers describe the overall price as fair and the process as a strong value proposition for their project.

Cost and warranty complaints. Some reviewers report feeling misled about costs or seeing charges they did not expect, including service-related fees or transfer-related pricing. Representative review excerpt: "Most never returned a requested quote and the one who did wanted $300 to transfer my panel system to their company."

Communication & coordination

Communication7.4/10

Communication is one of the more consistent strengths in the review set, with many customers praising responsiveness, updates, and project follow-through. Complaints are relatively rare, but the negative reviews point to missed responses, scheduling hiccups, and occasional gaps in follow-up.Solar.com's composite of published customer feedback, not a customer quote

Responsive and well-coordinated. The dominant review pattern is that staff stayed in touch, answered questions, and kept projects moving with clear coordination between office and field teams. Representative review excerpt: "Professional, communicated well with their front office and project manager."

Strong follow-through. Customers also describe quick responses to issues and good communication during installation or service work. Representative review excerpt: "At one point when the solar was initially installed there was a glitch and I emailed the company at midnight as I was relying on the solar to power my..."

Follow-up gaps and missed scheduling. A smaller number of reviewers say they were promised follow-through that did not arrive, or that scheduling and callbacks were not handled smoothly. Representative review excerpt: "Although, their triage person responds and promises follow through, I have yet to receive any further response or assistance."

Timeline reliability

Timeline Reliability7.2/10

Most reviewers describe the timeline as managed well, with smooth installation and scheduling that stayed on track. The main complaints involve waiting on inspections, utility permission, or late notice about delays, which suggests the weak spots are concentrated in approval steps rather than the field work itself.Solar.com's composite of published customer feedback, not a customer quote

On-schedule completion. Many customers say the work finished as planned and that inspections or closeout steps were handled efficiently. Representative review excerpt: "They left the site clean and all inspections were completed as scheduled."

Fast, steady project flow. Some reviewers describe the installation as moving quickly and being completed without much disruption. Representative review excerpt: "Guyou installed 16 solar panels on two roof faces on my home roof."

Approval and inspection delays. A smaller set reports waiting longer than expected for city or utility approval, or learning about inspection issues only after a delay. Representative review excerpt: "When city came to do inspection it did not initially pass due to placement of AC disconnect and I was not informed until I had to call about 3 weeks..."

Workmanship & site care

Workmanship7.9/10

Workmanship receives very strong feedback overall, with reviewers frequently praising professional crews, careful execution, and clean job sites. Complaint volume is low, but the few negative comments that do appear focus on debris left behind or expectations around system output after installation.Solar.com's composite of published customer feedback, not a customer quote

Professional installation. Reviewers commonly describe the crews as professional, knowledgeable, and communicative throughout the job. Representative review excerpt: "From the initial consultation to the final installation, their team was professional, knowledgeable, and communicative every step of the way."

Clean finish and careful work. Customers also note that the team explained the work and left the site clean after installation or repair. Representative review excerpt: "Explained what was being done and left the job clean."

Cleanup issue on a few jobs. A small number of reviews mention leftover debris or trash on the roof after the work was finished. Representative review excerpt: "The roofers and the solar install crews both left quite a bit of trash on the roof, which obviously blows off eventually."

Long-term support & performance

Long-Term Support7.9/10

Post-install feedback is largely positive, with many reviewers saying their systems continued to work well and that service help was effective when needed. Rare complaints focus on unresolved equipment issues or difficulty getting after-sales support, but those comments are a small minority of the evidence reviewed.Solar.com's composite of published customer feedback, not a customer quote

Systems working well. Many customers say their solar systems or batteries performed as expected and delivered noticeable savings or reliable operation. Representative review excerpt: "System works as expected, great savings on my monthy electric bill."

Responsive repair or reset help. Some reviewers mention quick service visits that restored operation and confirmed everything was working correctly. Representative review excerpt: "He finished the repair quickly, verified everything was working correctly, and cleaned up everything when he finished."

After-sales support concerns. A few customers say they had trouble getting help for equipment or maintenance issues after the install was complete. Representative review excerpt: "Guyou did a commendable job with the installation of our solar panels but have completely disappeared when it to after sales service."

Bottom line: GUYOU CONSTRUCTION’s review profile is strongest in workmanship, communication, and post-install performance, where praise is frequent and complaint rates are low. The main softer spots are sales/proposal clarity and price transparency, where a smaller but meaningful share of reviewers describes expectations that did not fully line up with the final outcome.

How this is built: category scores and summaries weigh the company's full published rating record (1,428 Google reviews averaging 4.9 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 Guyou Construction

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.
6
2014
16
'15
45
'16
51
'17
93
'18
156
'19
217
'20
295
'21
185
'22
185
'23
69
'24
34
'25
24
'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 Guyou Construction

What do customers say in Guyou Construction reviews?

We analyzed 1,065 substantive published customer reviews of Guyou Construction in full. The company's Solar.com Installer Score is 7.9/10, 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 Guyou Construction installed?

Guyou Construction appears as installer of record on 1,330+ 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 Guyou Construction'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.