Mechancial Contractor specializing in pipe welding, including process piping, steam, gas, air, water in the industrial & commercial sectors in Ontario.

TSSA Certified Ontario

Established in 1987, Holloway Mechanical Systems has over 32 years of worldwide experience. Having built manufacturing facilities in Canada, Germany, Spain, Mexico, Brazil, and throughout the USA.  

Holloway Mechanical Systems recognizes the requirement to be constantly improving and innovating to surpass client expectations.

We take great pride in our quality workmanship and our ability to handle any pipe welding project that comes our way. Time and again,  contractors choose us for our ability to get the job done right the first time, and on schedule. Aside from being recognized for delivering quality welds under extreme time constraints, Holloway Mechanical Systems is also known for our commitment to customer satisfaction. No matter what job we take on, we stay in constant communication with our clients to assure them that the job is progressing on schedule and to the highest industry standards.

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High Pressure Piping

We excel in our field by combining a global manufacturing network with extensive, on-the-job contracting experience. We routinely accommodate a large variety of project types. We consistently partner with our clients to manufacture, install, and repair high-pressure piping systems in commercial, industrial settings

Pipe welding, welder Toronto, ontario

Pipe Welding

We have the personnel, experience, and equipment to perform a variety of pipe welding services, including structural and plate fabrication; fabrication, installation, and repair of pressure piping; cement-lined piping fabrication; and inspection and stabilization of pipelines.

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Boiler Installation

Weather it be hot water or high pressure steam Holloway Mechanical Systems Corp will assist in the boiler design and boiler installation for your particular application.

Photo 10 Mechanical Contractor

Custom Fabrication

Holloway Mechanical Systems can engineer or fabricate a custom solution to your needs whether  it be a platform, storage tank, pump skids, storage mezzanines, or any solution to your problem. We have a design team with 35+ years of experience to assist you with creating a solution to your needs.

Servicing Areas

Toronto – GTA area, Vaughan, Markham, Richmond Hill, Newmarket, Brampton, Mississauga, Collingwood, Barrie, Orillia


Process piping, pressure vessels, mechanical piping, gas piping, stainless steel piping, copper piping, aluminum piping, PVC piping, boiler installation, custom metal fabrication, maintenance & repairs

Contact us

email: Holloway Mechanical

Tel: 705-443-0615

Great work! The entire process was seamless.

Zac, 09.21.2019

Exceptional quality work!

Bruce, 12.14.2018