About Us

We’ve earned our solid reputation one job at a time.

From One Truck to a Full-Crew Powerhouse

Back in ’97, Jim Harder kicked things off with just a truck, a toolbox, and a no-nonsense work ethic. Fast-forward to today, JWH Mechanical has grown into a crew of 30+ pros tackling everything from leaky taps to commercial mechanical builds across Manitoba and Ontario’s cottage country. We’re proud of our roots—and prouder of the work we do every single day. As a certified participant in the Certificate of Recognition (COR®) Program, we’ve proven our commitment to implementing a comprehensive safety and health program, because getting the job done right also means getting it done safely.

What We handle

residential

Plumbing repairs & installs

Water heater + tank service

Furnace & AC installs/repairs

Water treatment & septic systems

Commercial

Full mechanical design-builds

Large-scale retrofits & renos

HVAC, plumbing & water system installs

Your Kind of Team

With two hands-on owners, a rock-solid service manager, and journeypersons backed by sharp apprentices, we show up, get it done, and treat your project like our own.

We’re a tight-knit team. No corporate fluff. Just real people who take pride in their trade.

We work hard AND we play hard, too. Whether it’s team BBQs, cheering at local hockey games, or jumping in to support community events, we believe a strong crew isn’t just built on the jobsite. A solid foundation starts with shared wins, good laughs, and showing up for each other. This bond makes us a tighter team and a better one for our customers.

Our values are simple: