Our Services

Sheet Metal / Manufacturing Fabrication

Boiler and Heating Systems

Industrial Process Piping

Custom Fittings

Medical Gas Systems

registered with Service NL

Pipe Brazing

registered with Service NL

Boiler Pressure Vessel Installation / Repair

registered with Service NL

Pipe Welding and Fabrication

registered with Service NL

Waste Water and Water Treatment

Refrigeration / HVAC Systems

BMS Control & Automation Systems

Pipe Insulation


Why Choose Us?

Our labour force consisting of non-union certified Plumbers, Pipefitters, Sheetmetal Workers, Electricians, Welders, and Technicians safely deliver a quality service to our customers in the Commercial and Industrial sectors. TML has a long-standing reputation of providing a safe and unparalleled level of Quality compliant with all applicable construction / building codes, keeping the best interests of our clients at the forefront. We take pride in working with the overall construction team to deliver a quality production on schedule.

We are members of the following associations:

Merit Contractors Association

We take care of the needs of our workers so that we can effectively meet the needs of your project, whatever they may be.

🌐 Merit Website
Merit Contractors Association

St. John’s Board of Trade

When you Choose Tristar Mechanical, you are supporting a local business in St. John's, NL, and together we help our province thrive.

📃 See Our Listing
St. John's Board of Trade


As a member of the American Society of Heating and Air-Conditioning Engineers, we maintain access to the latest technical resources, industry news, and a vast network of HVAC engineers around the world.

🌐 ASHRAE website


We hold a current letter of good standing under the Newfoundland & Labrador Construction Safety Association's Certificate of Recognition Program.

🌐 NLCSA website
COR logo

Contact Us

Online or by Phone