Solar installers with Flatirons in background

About Custom Solar

Custom Solar is a renewable energy design/build contractor providing high value, reliable solar solutions for residential and light commercial customers in the Boulder, Denver and Colorado area since 2008.

  • Turnkey residential and commercial solar PV and battery backup solutions
  • Consultation, design, and engineering services for architects, builders, developers, and municipal entities.
  • Comprehensive solar PV and backup battery services– with in-house engineering, design, permitting, and installation.
  • We help diverse clients save money on the highest-quality custom renewable energy systems.
ground mount

Customer service, integrity, and professionalism are the cornerstones of our business.


We are a local Boulder company, serving the community for over 15 years. We understand the climate, the permitting process and codes, the inspectors, and understand the the local, state, and federal incentives.


We carry the top renewable energy products with the most up-to-date technologies to help you craft an efficient and streamlined solar energy and backup system. We’ve been working with your neighbors and local businesses, municipalities, and educational institutions for a long time, so we’ve seen it all.


We’ve been around for a long time, and we plan on being around for longer. We want you to feel confident and comfortable knowing we’re in it for the long haul. Let’s create your energy independence with a system built to last.

Let’s Talk About Going Solar

Get clean energy with solar energy plus battery backup for mitigating costs, extending solar energy at night, and security in an emergency.