Skip to main content

R.O.I. Solar Inc.

Get Quotes
Solar, storage, and roofing from one licensed contractor. If your roof needs attention before it can carry a system for the next 25 years, we can handle both — something a solar-only company can't offer.
R.O.I. Solar Inc. logo
Approved EnergySage badge
Approved Installer
Screened & Verified

Get free solar quotes from local installers on EnergySage

Our pre-vetted network of installers compete for your business, which allows us to give you more options and the best deals.

Get Quotes
EnergySage

About R.O.I. Solar Inc.

Overview

R.O.I. Solar Inc. is a licensed solar, battery storage, and roofing contractor serving California's Central Valley and greater Sacramento region, including Lodi, Stockton, Modesto, Atwater, Sacramento, and Fairfield. As a licensed roofing contractor as well as a solar installer, we can address the whole roof — not just the panels on top of it. That means when a roof needs work before solar, we handle both under one roof, on one timeline, with one point of accountability. We install across PG&E, SMUD, and community-choice territories and offer multiple ways to go solar: power purchase agreements, cash purchase, and financing. Our goal is straightforward — a system sized to your actual usage, installed to code, that does what we said it would do.
Year Established
2010
Phone Number
(209) 600-4433
Reasons Why You Should Work With Us

  1. We're a licensed roofing contractor and solar installer — so if your roof needs repair or replacement before solar, we do both as one project, on one timeline, with one company standing behind it.

  2. We design to your real usage and walk you through every option — PPA, cash, or financing — so you can choose what actually fits your situation, not just what's easiest to sell.

  3. Local to the Central Valley and Sacramento region, with in-house design, permitting, and install crews — you're working with the people who are accountable for the finished job, not a call center.

Approved EnergySage badge

Approved installers passed our rigorous screening criteria for experience, licensing, and positive reviews.

We speak

English

We're a licensed roofing contractor as well as a solar installer, so if your roof needs work before solar, we handle both under one contract and timeline. Design, permitting, and installation are all in-house — one team, fully accountable.
We offer three ways to go solar: a power purchase agreement (PPA), cash purchase, or financing. We walk you through the tradeoffs of each based on your usage and goals, not just what's easiest to sell.
Yes, we design and install battery backup and storage alongside solar, or as a standalone addition to an existing system. Storage lets you use your panels' daytime power in the evening and keeps essential circuits running during an outage.
We size systems to your actual electricity usage, not a generic estimate — reviewing your utility bills and rate structure (PG&E, SMUD, or community-choice) so your system matches what you truly consume, not just what fits on your roof.
We install throughout California's Central Valley and greater Sacramento region, including Lodi, Stockton, Modesto, Atwater, Sacramento, and Fairfield, across PG&E, SMUD, and community-choice territories.
Because our design, permitting, and installation teams are all in-house, the people who built your system are the same people you call if an issue comes up — no call center, no third-party subcontractor hand-off.

R.O.I. Solar Inc. installs residential solar photovoltaic systems, battery backup and storage, and provides full roofing services — repair and replacement — as a licensed roofing contractor. We serve PG&E, SMUD, and community-choice (MCE and others) territories across the Central Valley and Sacramento region. We offer power purchase agreements, cash purchase, and financing, and we handle roof-plus-solar bundles as a single project so homeowners aren't coordinating two separate contractors. In-house design, permitting, and installation.

Services Offered

  • Installation
  • Financing
  • Energy Auditing
  • Construction
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance
  • Commercial Solar

R.O.I. Solar Inc. is a California-based team of solar and roofing professionals led by owner Sean Matthews. Our people handle design, permitting, engineering, installation, and post-install support in-house, so the crew that sells your system is accountable for the one that gets installed. We serve homeowners across the Central Valley and Sacramento region and pride ourselves on straight answers and clean workmanship.

Workmanship Warranty

10-year workmanship guarantee and 25 year product warranty

Licenses

CSLB #1082435 — California solar and roofing contractor

Certifications

Tesla certified, Enphase certified, solar edge certified, OSHA 30-hour National Fire Protection Agency (NFPA) certification SigEnergy diamond certified .

Manufacturer Certifications

  • Sungage Financial Certified Partner

Location

Headquarters

States Served

Make an impact.
It's never been easier.
We developed our one-of-a-kind marketplace with funding from the U.S. Department of Energy to make clean home energy solutions affordable and accessible to all.
EnergySage

ENERGYSAGE is a registered trademark and the EnergySage logo is a trademark of EnergySage, Inc. Other trademarks are the property of either EnergySage, Inc. or our licensors and are used with permission.

© Copyright 2009-2025 EnergySage, Inc. All rights reserved.

Terms of use
Privacy policy
Messaging terms and conditions
Non-discrimination policy

Learn more about our success working with the U.S. Department of Energy.