Our Partners
Discover how Hartwig Mechanical’s trusted partnerships help us deliver efficient, full-scale mechanical solutions to communities across Northern IL and Southern WI.
Featured Partners and Vendors
At Hartwig Mechanical, our trusted partners and vendors play a vital role in helping us deliver full-scale mechanical solutions throughout Northern Illinois and Southern Wisconsin. These relationships allow us to source high-quality materials, collaborate seamlessly across trades, and respond faster to the evolving needs of our clients and communities.
We’re also proud to be a member of Crete United, a national energy efficiency company that leverages Mechanical, Electrical, and Plumbing (MEP) expertise to improve lives and infrastructure. Through the Crete United network, we offer integrated, multi-service solutions, streamlined customer experiences, and smart, energy-efficient systems that maximize uptime and reduce long-term spend. Together, we’re building safer, stronger, and more sustainable spaces everywhere we go.
