KD Exterior Building Products
Premium Canadian-made exterior solutions
Enhancing Homes and Businesses with Quality Windows, Doors, and Siding
History
​
Since 2009, Kevin and Kim Downey have built KD Exterior Building Products on the foundation of honesty, hard work, and family values. What began as a small local company has grown into one of Sarnia-Lambton’s most trusted names for windows, doors, siding, and exterior products.
From the start, Kevin and Kim focused on building relationships with customers, suppliers, and the community. Their dedication has created a reputation for reliability and quality that continues to stand strong today.
With the addition of Ferrera Concrete in 2021 , a company with more than 40 years of expertise, KD Exterior expanded its ability to serve homeowners and businesses with a full range of exterior and concrete solutions.
Now, as a family-owned business deeply rooted in the community, KD Exterior remains committed to providing premium products, professional installation, and personal service for every customer.
Our Commitment
At KD Exterior Building Products, we take pride in being a family-owned business right here in Sarnia. Our roots in the community guide the way we work, with honesty, craftsmanship, and a focus on building long-term trust with every homeowner.
We know that choosing the right windows, doors, siding, and exterior products is a big investment, and our commitment is to make the process simple, transparent, and stress-free. From the first consultation to the final installation, we stand behind our work and the products we supply.
Because we live and work in Sarnia, your home is part of our community too. That means every project is personal, and every customer is treated like family. When you choose KD Exterior, you’re choosing reliable products, professional installation, and a company that truly cares about your home.
