11/09/2026
Here’s a question that probably doesn’t get asked enough when choosing a solar company:
Who are you going to call when your system needs service five or ten years from now?
Solar is a long-term investment. Companies can come and go, equipment eventually needs attention, and sometimes homeowners are left with systems installed by someone who is no longer around to service them.
OnSite has been designing, installing and supporting solar systems across Montana since 2012. More than 1,200 projects later, we’re still here—and we've even stepped in to help service systems installed by companies that aren't.
That longevity matters to us just as much as the installation itself.
It’s also pretty cool to have been recognized as a Top Solar Contractor in the U.S. eight times along the way. ☀️
We’re not interested in simply putting panels on your roof. We want to be the solar company you can still call years later.