Painting/Refinishing of Metal/Steel/Aluminum Siding on Industrial Buildings, Factories & Plants

Everyone wants a paint job or refinishing job to last as long as possible. This task is made more difficult with exterior exposure, since paint finishes have to deal with sun, rain, temperature fluctuations and more, all of which wreak havoc with a paint finish.

Nowhere is this more of a problem than when refinishing exterior steel/metal clad or aluminum clad siding on a large industrial building, plant or factory. Particularly in the spring and fall when daily temperature variations are the highest, the metal substrate heats up and expands during the day, while at night it cools and contracts considerably when compared to any other painted surface.

Industrial Metal Siding Coating & Refinishing Systems

This means the coating used for industrial building siding refinishing has to be designed for high levels of expansion and contraction, or it will soon crack and fail as it is stretched beyond its capabilities. Highly flexible coatings are required, combined with excellent fade resistance and gloss retention to withstand the sun exposure.

Coating selection becomes even more important when dark colours are being used since they absorb more heat during the day; the dark surface can become over 50 degrees F hotter than a comparable light-coloured surface.As well, fading is more noticeable on dark colours, so colour retention characteristics are more important.

Regular industrial paints generally don’t have the high quality inorganic pigments, resins, or correct gloss levels required to duplicate the original factory finishes. If the refinishing is to match the original factory finish in both gloss and colour, you also need to make sure the gloss of the refinishing enamel is correct.

At Induspray, our refinishing enamels for metal/steel siding applications are custom made for us by the original coil coating manufacturers to the much higher performance criteria of the original coating specifications.

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Photo Gallery

Click to view some of our industrial painting projects for metal/steel/aluminum siding and cladding.

Locations We Service

We are Toronto industrial painters serving Toronto, the GTA, Southern Ontario, Western Ontario, Eastern Ontario and parts of Northern Ontario.

Our territory includes:

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Our Customers

We’ve been in business since 1975, serving over 4,875 satisfied clients while completing thousands of industrial and commercial painting projects. These are just some of our customers:

ABB
Magna Automotive
Molson Coors
Maple Leaf
Emerson Electric
Raymond
Redpath Sugar
STELCO
Cargill
AECON
Johnson Controls
Canada Wire
Celestica
General Electric
Petro Canada

What Our Clients Say

Induspray painted 4 large stamping presses for us and were able to complete the work with minimal disruption to our production schedule. First rate equipment painters.

Andy and his crew cannot be more recommended. In all our dealings, he was professional and honest. The quality of the work was excellent, and the price was reasonable. Thanks again.

A professional painting contractor that I would recommend to anyone.

The crew from Induspray did a great job for us. We had our entire warehouse ceiling painted (at over 85,000 sqft), and they were in and out in less than the originally estimated time. I would definitely recommend them.

All the walls in our plant were painted and it all looks great now. Very happy with the work and the price we obtained.

Your Project

Have questions about painting your metal siding or aluminum siding? We can quickly assess your needs and make cost-effective recommendations. Contact us today — we’re here to help.

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Start your project with expert advice and a great price.

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FAQs for Industrial Metal Siding Painting

The best method for painting metal siding on industrial buildings in Toronto involves professional surface preparation, followed by the application of high-performance coatings like epoxy or urethane. At Induspray, we tailor each project based on your siding’s condition, weather exposure, and industry needs.

In Ontario’s climate, high-quality industrial metal siding paint can last 15 to 20  years, depending on the coating system used and surface preparation. Our durable coatings are designed to withstand harsh winters, humidity, and UV exposure common in Toronto and the GTA.

Yes, you can paint over old metal siding—but only after proper surface preparation, which includes cleaning, rust removal, and priming. Induspray specializes in industrial repaints and ensures adhesion and longevity by using premium industrial-grade primers and finishes.

 In most cases, full shutdowns are not required. Induspray schedules work to minimize disruption, using low-odor and quick-drying coatings when necessary. We also work during off-hours or weekends for businesses in the GTA.

Costs vary based on building size, condition, access difficulty, and coating type. Contact Induspray for a custom estimate based on your building and project scope.

We paint and restore siding on factories, warehouses, industrial units, storage facilities, manufacturing plants, and more across Toronto, Mississauga, Brampton, Vaughan, and Ontario.

Yes, applying reflective or light-colored coatings can reduce heat absorption, improving indoor comfort and potentially lowering cooling costs during Ontario summers. We offer heat-reflective coatings specifically designed for industrial metal surfaces.

Absolutely. We repair and treat rusted or peeling areas through power tool cleaning, sandblasting, or rust-inhibiting primers before repainting. This ensures a smooth finish and long-lasting protection.

Yes, we offer low-VOC and environmentally friendly coatings that comply with Ontario environmental regulations. These coatings deliver the same industrial-grade performance with reduced environmental impact.