Momentum Solar Review 2026: In-House Crews, But What About the Complaints?

Momentum Solar is a private mid-sized residential solar installer founded in 2009, headquartered in New Jersey with approximately 1,300 employees and operations in 11 states including California. On paper, Momentum has several things going for it: in-house installation crews (instead of a subcontractor network), Tier-1 panels, Enphase microinverters exclusively, and a 25-year workmanship warranty. In practice, the customer reputation is mixed — and the $30 million TCPA class-action settlement from 2025 is the kind of thing California buyers deserve to know about before signing.

Equipment and Installation

Momentum installs Tier-1 panels — typically Qcells, LG, REC, Trina, or Longi depending on availability. Inverters are Enphase microinverters only, which is a genuine quality point: microinverters handle partial shading and panel-level optimization better than string inverters, and Enphase has one of the strongest warranty and reliability records in the industry. Batteries are Enphase IQ units where storage is included.

Installation is primarily handled by in-house W-2 crews rather than subcontractors. That's a real differentiator versus Sunrun or Freedom Forever's dealer-network models. Consistent crew quality is easier to achieve when the company employs the installers directly, and Momentum has built a reputation for relatively smooth install-day experiences.

Pricing and Timeline (California)

Momentum's California cash pricing runs roughly $2.79 to $3.00 per watt, competitive with the mid-market. Install-to-PTO timelines are relatively fast — around 1 to 2 months for physical installation and 2 to 3 months for full Permission to Operate, depending on utility interconnection queues. Financing is all third-party partners (Momentum does not own its own financing product).

The Reputation Problem

Here's where the story gets complicated. Momentum holds a BBB A+ rating, but the same BBB profile lists 642 complaints closed over the prior three years. Trustpilot is notably low at 1.6 out of 5, and SolarReviews sits at 2.78 out of 5. For a company with ~1,300 employees and 11-state operations, that's meaningful volume.

The recurring complaint themes are: aggressive sales tactics (cold-calling, door-to-door, follow-up pressure), post-install service delays, billing issues (especially on financed systems), and occasional roof damage during installation. The installation itself is typically handled well — the complaints tend to cluster around the sales process before and the service experience after.

In 2025, Momentum Solar settled a $30 million class action under the Telephone Consumer Protection Act related to unsolicited marketing calls. That's a specific, verifiable fact that speaks to the sales-side complaint pattern. If you hear from Momentum and you didn't ask them to contact you, that's the pattern the settlement was about.

Warranty

Momentum offers a 25-year equipment warranty paired with a 25-year workmanship warranty, which is a genuine strength on paper. As with any installer warranty, the value depends on the company still being around to honor it in year 18 or year 22. Momentum is private, so you don't have the quarterly financial transparency you get with a publicly traded installer. That's not a red flag by itself, but it is a data point.

When Momentum Makes Sense

Momentum is a reasonable option for California buyers who specifically want an Enphase microinverter system installed by in-house crews at mid-market pricing. The install experience is typically solid and the equipment choices are sound.

It's less compelling if aggressive sales contact has already been a negative signal for you, if you specifically value the financial transparency of a publicly traded installer, or if the post-install service pattern in the complaint data is a concern for a 25-year decision.

Frequently Asked Questions