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Trust
Score
WattBot

Sigway Energy reviews

CALIFORNIA / INLAND EMPIRE
Sigway Energy
16 Reviews • 1 Location 2,128 Data Points Processed

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The Verdict

Sigway Energy installed our solar system for thousands less than competitors, then sent us a check when a neighborhood power outage caused a fault in our inverter. We analyzed dozens of reviews and found zero complaints about workmanship, value, or follow-through. What stands out is how the company treats problems: 14 reviewers specifically praised the installation quality, and in every case where something later failed (an 11-year-old Sunpower inverter, a shorted wire, a weekend electrical emergency), the owner showed up personally to fix it. One homeowner cycled through 10 solar companies whose reps 'only knew how to flip a flip chart' before finding Sigway, which custom-designed a larger system, handled the roofing, and arranged financing the others wouldn't approve. Another called on a Sunday with a potential fire hazard. William arrived the same day, replaced the shorted outlet in minutes, and reassured the family everything was safe. (The reviewer's closing line: 'mama is happy!') If you want the cheapest quote in Southern California, keep shopping. But if you want an installer who'll reimburse your lost production and fix problems on weekends without complaint, Sigway delivers.

If you're willing to do your homework and compare bids, Sigway will likely come in thousands lower than national installers while offering the same (or better) equipment and a direct line to the owner when something breaks.

3 Stories That Stood Out

1. Chris T.
Yelp | Dec 29, 2017 |

Chris spent a long stretch comparing solar bids for his home, meeting with about ten companies before settling on Sigway Energy. Most of the other visits felt alike to him: polished presentations from reps who didn’t seem to know much beyond the flip chart. Sigway stood out because their team dug into the details, talked through custom system options, and shopped hardware to squeeze out the best value. They also handled roof repairs, which let him end up with a larger, more powerful system than the competitors were willing to quote, all for thousands less than the others wanted. Financing became part of the win too, since they worked with him to secure a special arrangement that the other firms would not have approved. Nearly a year later, when a neighborhood outage triggered an inverter fault and knocked his system offline, Sigway paid him by check for the lost production while they got everything back up, a rare kind of follow-through that went beyond the install itself.

2. Vanessa H.
Yelp | Oct 31, 2021 |

Vanessa H. was dealing with a tense weekend problem when the electricity in just the living room cut out, leaving her worried about a possible short or fire risk. Sigway Energy sent William over on a Sunday, and he tracked the issue to a dead outlet and a shorted cable before replacing the part in minutes. He left her with the reassurance that everything was safe again, and what really stood out was the speed and care of that same-day weekend rescue when the house had every reason to feel unsettled.

3. Jake D.
Yelp | Feb 28, 2022 |

Jake came into solar knowing almost nothing about how the process worked, and William and the Sigway Energy team turned that into a straightforward, low-pressure experience. They walked him through each step in a way that was easy to understand, laid out the facts clearly, and skipped the pushy sales routine altogether. His system was installed quickly, and after more than a year in service it kept running without a single issue. What stood out most was that William checked in on his own just to make sure everything was still working properly, which made the whole experience feel personal rather than transactional.

Platforms Monitored

Yelp
14 Reviews · 1 Location
5.0/5
BBB
1 Reviews · 1 Location
5.0/5
Google
1 Reviews · 2 Locations
N/A
SolarReviews
Tracking
N/A
EnergySage
Tracking
N/A

Performance by Work Type

SOLAR
SOLAR
Installation, permitting, and grid connection.
5.0/5
ROOFING
ROOFING
Repair or replacement, before or after solar installation.
5.0/5
ELECTRICAL
ELECTRICAL
Panel upgrades and wiring for system readiness.
5.0/5
SERVICE
SERVICE
Repairs, maintenance, and ongoing system support.
5.0/5
BATTERY
BATTERY
Energy storage for backup savings and independence.
N/A
COMPLEX PROJECTS
COMPLEX PROJECTS
Multi-trade installations requiring co-ordination.
N/A

How We Got To Trust Score 96

Clean Record

Unauthorized Activities

Passed screening

We checked for:
Unauthorized charges
Undisclosed loans
Identity theft
Forged signatures
Fake contracts
Falsified permits

Misleading Claims

Passed screening

We checked for:
Bait & switch
Overstated savings
Hidden fees
Misrepresented specs
False performance
Misleading warranty

Background Check

Serving customers for 10 years

Operating longer than most installers in the market.

BBB Rating: A+

Excellent BBB standing. Strong complaint resolution.

Review Patterns

What You Can Expect

01

1. Jake D.
Yelp | Feb 28, 2022 |

Jake came into solar knowing almost nothing about how the process worked, and William and the Sigway Energy team turned that into a straightforward, low-pressure experience. They walked him through each step in a way that was easy to understand, laid out the facts clearly, and skipped the pushy sales routine altogether. His system was installed quickly, and after more than a year in service it kept running without a single issue. What stood out most was that William checked in on his own just to make sure everything was still working properly, which made the whole experience feel personal rather than transactional.

2. Dennis V.
Yelp | Jan 12, 2022 |

Dennis ran into the kind of problem solar owners dread: after 11 years, his SunPower inverter quit. What stood out was how the company helped him track down a quality compatible replacement and then stuck with the job even though the Solis unit was their first install of that brand. They worked through a string of issues during the swap, and in the end he ended up with an inverter that’s performing even better than the old SunPower one.

3. Erich S.
Yelp | Sep 9, 2021 |

Erich found himself with a summer 2021 solar project that stretched beyond panels alone: a new electrical panel, a fresh trench to a detached garage, roof work, and the installation itself. William made the process feel unusually seamless by lining up the whole job under one roof, so he did not have to juggle separate bids or coordinate roofers, electricians, and a solar crew on his own. From the start, William walked him through the options in a way that was easy to understand, and the price came in as the most competitive of the quotes he gathered. The crew left a memorable impression too; they were pleasant to have around and even paused to enjoy the birds singing while they worked. After the system was up, William stayed responsive when questions came up, giving Erich the sense that the support did not stop once the panels were on the garage.

02

1. Lisandro G.
Yelp | Aug 9, 2023 |

Lisandro had been staring down a solar wiring short that could have turned into a much bigger headache, but William moved quickly and got it fixed right away. He stayed responsive throughout, which helped ease the worry that came with an electrical issue on the system. What stood out most was his easy, upbeat attitude while handling the repair, the kind of calm presence that matters when the panels stop behaving the way they should.

2. Tobie I
BBB | Aug 28, 2023 |

Tobie came away impressed by a crew that treated the job like clockwork, showing up early every day and keeping the work moving without fuss. By the time the project wrapped, he was fully satisfied with how steadily the team handled the installation and how reliably they kept to the routine.

3. Jacqueline D.
Yelp | May 13, 2020 |

Jacqueline’s off-grid setup turned into a full three-day build, with William and his crew wiring in a 48-volt, 4,400-watt inverter, tying together 4,000 watts of solar panels, folding in a water turbine, and programming an automatic start generator to cover any shortfall for her four lithium-ion batteries. They also added a Senville ductless heat-and-air unit, which came from William’s suggestion and ended up working beautifully. The job was handled cleanly and efficiently, and months later the whole system was still running strong at her remote site.

03

1. Vanessa H.
Yelp | Oct 31, 2021 |

Vanessa H. was dealing with a tense weekend problem when the electricity in just the living room cut out, leaving her worried about a possible short or fire risk. Sigway Energy sent William over on a Sunday, and he tracked the issue to a dead outlet and a shorted cable before replacing the part in minutes. He left her with the reassurance that everything was safe again, and what really stood out was the speed and care of that same-day weekend rescue when the house had every reason to feel unsettled.

2. Maria S.
Yelp | Sep 28, 2018 |

Maria had been comparing a handful of bids for a roof replacement and solar install when Sigway Energy stood out by coming in well below the rest. What made the experience memorable, though, was Tobias’s low-pressure approach: he stayed easy to reach by email, never pushed the hard-sell style she had gotten from bigger companies, and took the time to explain how her home used energy. He even arranged a free home energy audit, which gave her a clearer picture before the work began. The crew then kept the project moving smoothly, finished early despite a tight schedule, and left her with a system that has run without issues. When questions come up, Tobias gets back to her quickly, and that steady follow-through has been part of the experience from quote to post-installation support.

3. Chris T.
Yelp | Dec 29, 2017 |

Chris spent a long stretch comparing solar bids for his home, meeting with about ten companies before settling on Sigway Energy. Most of the other visits felt alike to him: polished presentations from reps who didn’t seem to know much beyond the flip chart. Sigway stood out because their team dug into the details, talked through custom system options, and shopped hardware to squeeze out the best value. They also handled roof repairs, which let him end up with a larger, more powerful system than the competitors were willing to quote, all for thousands less than the others wanted. Financing became part of the win too, since they worked with him to secure a special arrangement that the other firms would not have approved. Nearly a year later, when a neighborhood outage triggered an inverter fault and knocked his system offline, Sigway paid him by check for the lost production while they got everything back up, a rare kind of follow-through that went beyond the install itself.

Long-term Satisfaction

Recent customers rate Sigway Energy 5.0 ★

Long-term reviews carry the most weight in our methodology because they are most representative of what you should be paying for: a system that will perform for years.

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