Serving Niagara and surrounding area
with quality & service for over a decade 


For over a decade, our extensive experience using skills and trades that were passed down from generation to generation, and have satisfied custom new home builders and homeowners alike throughout Niagara and surrounding areas.

Owner Cornelius Janzen provides accurate, honest advice that will deliver the best service and workmanship at competitive pricing.

In addition to being one of the premiere CertainTeed shingle roofers, D & J Roofing is also a leader in metal roofing offering you peace of mind with the best warranty and longevity in the business.

We encourage you to browse our roofing gallery and see examples of our steel and shingle roofing projects throughout the region

Working with Integrity - The quality of being honest and having strong moral principles; moral uprightness.

Honesty - In principle, an upright disposition; moral rectitude of heart; a disposition to conform to justice and correct moral
principles, in all social transactions. In fact, upright conduct; an actual conformity to justice and moral rectitude.


We specialize in new construction, re-roofing and emergency repairs in both metal and traditional shingle roofing.
 Whether you are building a new custom home or renovating and existing property, there is no job too small and all are done with the highest standard of professionalism, quality and craftsmanship.
  • Free Estimates 
  • Exclusive 10 year labour warranty 
  • Installation standards that exceed manufacturer’s recommendations
  • Serving Niagara and surrounding areas
  • The highest quality of building materials
  • Crew who are courteous and careful with your property
  • Staying within budget and no surprise costs
  • Clear and honest communication
  • Leaving the job site tidy and safe
  • Beautifying your home or business and increasing its value
  • Work to the highest levels of integrity and honesty

Roofing Products

We only use the highest quality roofing materials and accompanying products and have the expertise to handle your project.

Our shingles come in a variety of colors, styles, and textures designed to complement the individual exterior style and decor of your home or building. The three-tab shingles are usually the most cost effective form of shingle, but other designs are available and include more elaborate styles, colors and architectural details that can also provide longer lasting durability.


Niagara Metal Supply is our steel roofing division of D & J Roofing. While metal roofing costs more than composite roofing to install, it is actually much less expensive over the life of you home and can save you a lot of money in the long run. While your neighbours may re-roof their home many times, a high-quality metal roof will likely be the last roof you’ll ever need!

Our Niagara Metal Supply roofs are resistant to cracking, shrinking and erosion and our metal roofing systems can also withstand extreme weather conditions better than any other roofing material. We are the exclusive representative working directly with the metal production facility ensuring you attractive pricing, quality control and best of all … no middleman!

D&J Roofing Asphalt Shingle Roof


Asphalt roofing shingles are one of the most popular choices for roofing in Canada. Asphalt shingles popularity is based on their affordable cost, durability, protection and the wide variety of colors and architectural styles that allow you to customize the look of your home or business.

Installing only the industry’s top-rated CertainTeed line of shingles and their companying line of total roofing system products, you can rest assured you are getting the most reliable, consumer rated, highest quality products for your roofing needs.

Exclusive installers of CertainTeed Landmark Shingles and we
include the right high-quality underlayment for your project:
- Top-of-the-line Ice and Water Shield
- CertainTeed Diamond Deck and RoofRunner 
- Leaf Guards supply and installation

Christ Jesus came to this earth to serve. Taking His example we endeavor to do the same to the people that God brings into our lives.
 Colossians 3:17
And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him.


Request a quote!


1744 Ridgemount Road
Ridgeway ON  L0S1N0


P.O. Box 76
Virgil, ON L0S 1J0


E: DandJRoofingNiagara@gmail.com

T: +1 (905) 651-2503                   
Family Owned and Operated