Commercial Projects by Weiss-Johnson

Proven Experience. Trusted Results.

At Weiss-Johnson, we don’t just complete commercial HVAC and plumbing projects—we deliver systems that work exactly the way they’re supposed to: efficiently, reliably, and with zero shortcuts.

With over four decades of experience, we’ve partnered with Alberta’s top builders, developers, and general contractors to provide mechanical installations that meet strict timelines, safety requirements, and evolving building codes. From design-build to final inspection, we are your full-service HVAC and plumbing partner across Edmonton, Calgary, and surrounding areas.

Our dedicated commercial team handles everything from multifamily complexes to large-scale retail developments, mixed-use buildings, and institutional facilities.

Whether you’re working on new construction or a retrofit, trust Weiss-Johnson to get it done—right the first time.

Let’s Build Something That Lasts

We know what’s at stake when you’re managing a commercial project. With Weiss-Johnson, you get more than an HVAC or plumbing crew—you get a mechanical partner who understands how to deliver under pressure, meet spec, and exceed expectations.