We are the standing seam experts – and we’re not just saying that. We manufacture our standing seam metal roofing right here in Ontario, Canada. With the largest selection of material, profile and colour choices MWI is the leading source of standing seam in the province. MWI’s fleet of standing seam roll formers, product selection and prices are unmatched in the industry.

We install standing seam metal roofs across Ontario every single day.

Why is that so important? Because Standing seam is actually a difficult roof to install properly. Standing seam’s characteristic vertical panels that look so clean and modern are also unforgiving to improper handling and lack of precision. Don’t just trust anyone for your custom new build or metal roofing upgrade contact MWI Metal Roofing & Siding today for a free quote and consultation.

Metal Roofing Services

Standing Seam Installation

Complete standing seam metal roof supply and installation services. From removal of existing roof to on-site product manufacturing and installation, our team specializes in metal roofing so you can rest assured that we will get the job done right and on time.

On Site Material Production

We roll out your standing seam at your home or job-site. That means no extreme delivery fees and low risk of material damage. MWI provides both  Snap Lock Standing Seam and Mechanical Lock profiles with concealed fasteners for outstanding aesthetic and longevity.

Metal Roofing Installation

Supply and installations of made in Ontario Metal Shake, Metal Shingle, Metal Tile and Corrugated Metal Roofing Sheet products.

Standing Seam Applications


MWI metal roofing works with architects and project managers on custom built homes that require premium roofing solutions.  Quoting from plan and standing seam installation services scheduled to work with the exterior construction timelines you need.


Tired of re-roofing every 10 years with asphalt roofing? Our standing seam metal roofing products come with a 40 year limited warranty and are designed to withstand the harsh elements of the Canadian climate.

Standing Seam Roof Local Ontario Brewery

Efficient job site standing seam manufacturing to meet the needs of all scales of commercial metal roofing projects.

Other Services

Metal Siding Installation

Complete metal siding supply and installation services. We specialize in locally made Modern Plank wood grain look metal siding.

Soffit & Fascia Installation

Custom Soffit and Fascia supply and installation services. We specialize in vented wood grain look metal soffit.

Exterior Metal Cladding

Metal cladding installation services for residential, agricultural and light commercial use.


Standing Seam is a type of metal roofing that is characterized by its raised vertical seams that run continuously from the eave (bottom) of the roof to its ridge (top). The 2 most common standing seam designs are Mechanical Lock and Snap Lock.


There are many great metal roofing product options available in Canada for both commercial and residential use. Most metal roofs will have at least a 40 year warranty and provide excellent protection against all elements including fire and falling debris. Standing seam however, is of particular value on low sloped roofs because it is designed to be exceptionally watertight and resistant to ice and snow. In addition to its exceptional strength and durability Standing Seam is known for its exceptional style. This metal roof can enhance classic and rustic architecture when used with exotic metals like copper or zinc or complete the look of a modern home with its striking clean lines. This versatility and durability of roofing product is unique to standing seam and perhaps the reason why architects are specifying it at an increasing rate.