Man using welding torch to cut metal sheet in workshop.


The name “Tin-Knockers” is a historically established construction slang name for sheet metal workers as they “knocked on tin” when working with sheet metal and installing it particularly as duct work and ventilation.

Tin Knockers Custom Ltd is a fast growing company providing their clients with intelligent, cost effective solutions for their unique challenges for over 20 years. Tin Knockers Custom offers a full range of Metal Services, including all types of CWB Welding, Custom Cutting, Shearing and Folding.  We have experts in HVAC supply, Maintenance and Repair, Large and Small Scale Duct Replacement and Air Handling/Balancing that perfectly compliment the Metal and Fabrication division. Tin Knockers Custom also provides proactive services that seamlessly partner with maintenance staff and building operators to handle any issues with HVAC or Structural needs.

Tin Knockers Custom is CWB (Canadian Welding Bureau) and TSSA (Technical Standard and Safety Association) as well as Red Seal certified.

Tin Knockers Custom offers expert fabrication of metal structures and duct work in both high and low volumes. The fabrication division is a sprawling 10, 000 sq. ft facility that provides immediate access to complete custom solutions.

Shipping and Receiving are made easy with:

  • Exterior dock level doors – 8ft wide x 14ft high.
  • Drive-in level door – 14ft wide x 14ft high
  • Pick up and delivery flatbed truck
  • Toyota forklifts – 4, 0000 lbs. capacity.
  • Caterpillar forklift – 14, 000 lbs. capacity.


To be deemed 'exceptional' by the customers we serve and an employer of choice by the employees we rely on.

Our Values

We operate in a professional manner
We perform our duties in a professional manner and take pride in all aspects of our work and working environment.

We are accountable for our actions
We accept our individual and team responsibilities and we meet our commitments. We take responsibility for all our decisions and actions.

We strive for quality outcomes
Our stakeholders demand high-quality products and services and we will consistently strive to deliver to the highest standards.

We believe safety is paramount
We strive to create and maintain a safe working environment for all stakeholders.

We embrace change
Change is constant - we accept this and have a passion for using progressive methods to achieve great results.

Canadian Welding Bureau certified experts

Tin Knockers Custom

Serving Toronto | Mississauga | Scarborough | Etobicoke | Vaughan | North York | York | Oakville | Burlington | Hamilton | Barrie | Milton | Ottawa | London | Brampton | Windsor | Markham | Guelph | Oshawa | Kingston | Sudbury | Newmarket | Peterborough | Whitby | Sarnia | Georgetown | Orangeville | Woodstock | Cornwall | Lakefield | Bancroft | North Bay | Huntsville | Callander

Service solutions


1201 Nicholson Road,
Newmarket, ON L3Y 9C3

Phone: 416-502-2878

Red Seal Clear