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One of the province’s top commercial roofing contractors, Nedlaw Roofs services all of Ontario and also does work nationally. Since 1988, Nedlaw has been recognized for its leadership in project excellence and safety standards. Nedlaw Roofs strives to lead the Ontario commercial roofing industry with customer-driven problem solving, the highest safety protocols and market-leading techniques and systems.

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Nedlaw Living Walls eclipses the global green wall industry with a superior living wall biofilter technology that cleans indoor air and improves building performance. Nedlaw Biofilters combine three technologies – biofiltration, phytoremediation, and hydroponics – into a unique system designed specifically to deal with issues of indoor air quality.


Today, living roofs are integral to urban planning. Nedlaw has extensive experience in green roof systems and installations. 

Established in 2005, Nedlaw living Roofs provides a gratifying option to our flat-roof markets in the institutional, commercial and industrial sectors. 


Since 1972, D.J. Peat Roofing and Sheet Metal has proudly served Southwestern Ontario as a trusted roofing contractor. We stand by our credo – Quality Above All and guarantee our work. D.J. Peat offers decades of experience in commercial, industrial and residential roofing solutions, as well as the highest level of safety policies and procedures.


Since 1988, Nedlaw has accomplished an impressive portfolio of work, often involving out-of-the-ordinary projects. It’s frequently been remarked: What others can’t do, we’ve probably already done. And done quite well.

We confidently offer a diverse range of services, from minor roof repair and maintenance programs to complete re-roofs and new roof installations, in a diverse range of settings, from institutional and retail to multi-unit residential high-rise. Our large capacity enables us to handle multiple projects at the same time, to meet and advance schedules proficiently and to respond quickly to emergencies and service calls.

Nedlaw Group of Companies


"All of your crews have done an impressive job...organized, efficient, professional...very considerate of the homeowner...everything tidied when they finish....can’t think of any way they could have been better!

Thank you again John!"

Nick & Janet

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