Careers at Denoco Energy Systems — Smiths Falls
Denoco Energy Systems, Smiths Falls is expanding our team. We're hiring reliable, experienced tradespeople — and motivated apprentices ready to commit — who take pride in clean work, show up when they say they will, and want steady, year-round employment close to home. The application below takes about 10 minutes, and a real person reads every word.

Open roles
We're hiring for the following positions at the Smiths Falls branch:
- Refrigeration mechanic
- HVAC installer
- Gas technician
- Sheet metal worker
- Sheet metal duct worker
- Plumber
- Apprentice
Apply now — complete application
Don't see your exact role? Apply anyway and tell us where you'd be the best fit.
Careers FAQ
Quick answers for candidates researching Denoco.
- Where does Denoco operate?
- Denoco serves South-Eastern Ontario with two branches: Smiths Falls (HQ) and Kingston. Kingston supports additional service lines; Smiths Falls focuses on core HVAC and energy work.
- Is Denoco family-owned?
- Yes. Denoco is family-owned and community-rooted. The second generation is building on that foundation with a sharper focus on systems, documentation, and outcomes.
- What should I include in my application?
- Your trade, years of experience, certifications, service area, and the kind of work you’re best at (diagnostics, install, commissioning, hydronics, controls, etc.). If you have photos of clean installs or documentation habits, include them.