St. Louis, MO Solar Installation Contractors
There are 3 solar installation contractors serving St. Louis, Missouri, with an average customer rating of 4.7★. Local pros here handle Battery Storage, Commercial Solar, EV Charger Installation, Residential Solar and more. Compare St. Louis providers below and request free quotes.
ECOcentrix
📍 St. Louis, MO
ECOcentrix is a St. Louis, Missouri-based contractor that has been helping customers reduce energy costs since 2011. The company provides services across three main areas: building performance, solar, and construction. Its building performance offerings include residential home energy assessments, commercial energy audits, home performance consultations, residential radon testing, and tools such as a home efficiency checklist and a home performance workbook. On the solar side, ECOcentrix handles both residential and commercial solar installation, solar system monitoring, ongoing solar operations and maintenance, Tesla Powerwall 3 battery storage installation, and Tesla EV charger installation. Commercial solar projects are listed for the St. Louis area, while residential solar work is noted in areas such as Wentzville, Missouri. The company's construction division covers residential and commercial roofing, including commercial roof repair in St. Louis. ECOcentrix serves homeowners and commercial property owners alike, and describes its approach as white glove building services with a community focus. The company can be reached at 314-246-0116.
StraightUp Solar
📍 St. Louis, MO
StraightUp Solar is a solar energy company serving customers in the St. Louis City and County area, as well as broader markets in Missouri and Illinois. For residential customers, the company offers solar array installation, battery storage systems, smart panels, and solar inverters, along with guidance on applicable state incentives in both Missouri and Illinois. For commercial customers, StraightUp Solar serves a wide range of sectors including small businesses, nonprofits, government agencies, industrial facilities, schools, agricultural operations, and houses of worship. Commercial offerings also include electric vehicle charger installation. The company operates a dedicated service department that handles residential solar panel service, panel removal and reinstallation, commercial operations and maintenance, monitoring services, and system troubleshooting. StraightUp Solar also participates in the Illinois Solar for All program. Customers can reach the company at (844) 387-1095 or request a free quote online. The company maintains a learning center featuring a blog, case studies, events, webinars, and a frequently asked questions section.
EFS Energy
📍 St. Louis, MO
EFS Energy is a St. Louis, Missouri-based commercial solar company serving businesses and institutions across Illinois and Missouri, with dedicated service areas in St. Louis, MO and Springfield, IL. The company has transitioned away from residential customers and focuses exclusively on commercial clients. Its core services are commercial solar construction management and commercial solar consulting. EFS Energy targets specific sectors including car dealerships, commercial service providers, educational facilities, farms, and manufacturing facilities. The company reports completing over 650 solar projects, constructing more than 15 megawatts of solar capacity, securing over $13 million in customer incentives, and creating more than 100 jobs in the area. Documented projects include Auffenberg Dealerships, which installed over 6,000 panels between 2020 and 2024 and saves approximately $445,000 annually, and Industrial Battery Products in St. Louis, which produces over 145,000 kW of solar energy per year. EFS Energy also maintains a dedicated legacy program for ongoing maintenance and performance monitoring of completed installations.
Solar Installation Services Available in St. Louis
Based on the 3 solar installation providers listed in St. Louis, the following services are offered locally:
St. Louis Solar Installation Contractors — FAQ
How many solar installation contractors are in St. Louis, MO?
Our directory lists 3 verified solar installation contractors serving St. Louis, including ECOcentrix, StraightUp Solar, EFS Energy.
Are St. Louis solar installation contractors well rated?
St. Louis providers in our directory hold an average customer rating of 4.7 out of 5 across 3 listed businesses.
How do I get quotes from St. Louis contractors?
Open any St. Louis listing above and use its free quote form. There's no cost and no obligation to compare local solar installation providers.
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