Para-Loc Inc. is a professional interlocking and landscape construction company serving residential and commercial clients across Markham, Toronto, and the GTA. Founded in 2018, we specialize in interlocking stonework, concrete installations, fencing, decking, and complete outdoor hardscape design and build services.
As a family-owned business led by father-and-son team Sam and Donny Shen, we combine hands-on expertise, quality craftsmanship, and reliable project management to create durable, functional, and visually striking outdoor spaces. From driveways and walkways to large-scale commercial projects, our goal is to deliver professional results with precision, efficiency, and long-lasting value.
What sets Para-Loc apart is our hands-on approach, strong project management, and commitment to delivering durable, high-quality outdoor construction.
• Family-owned business built on trust, reliability, and craftsmanship
• Experienced interlocking and landscape construction professionals
• Specializing in interlocking stonework, concrete, fencing, decking, and hardscape projects
• Efficient scheduling and organized project coordination
• Focus on proper base preparation, durability, and long-term performance
• Clear communication and personalized service from start to finish
We don’t just build outdoor features... we create functional, long-lasting outdoor spaces designed to enhance your property’s value and appearance.
Not sure which interlocking design, materials, or layout will work best for your property? We provide expert guidance on planning, preparation, and project requirements to help you make the right decision from the start.

Born and raised in the community he proudly serves, Donny has dedicated his career to landscaping and interlocking from day one. With a genuine passion for outdoor construction, he brings hands-on experience, creativity, and attention to detail to every project. Donny loves what he does, and it shows through his commitment to quality craftsmanship and client satisfaction. From initial consultation through final installation, he works closely with clients to turn ideas into functional and visually striking outdoor spaces built to last.

Sam immigrated to Canada in 1998 and has spent his life working hard to build opportunities for his family and community. With a strong work ethic and dedication to excellence, he plays a key role in ensuring every project is completed with care, precision, and integrity. As a father of three, Sam’s commitment to doing his best extends beyond the job site. It’s reflected in the values that guide Para-Loc today: reliability, honesty, and pride in delivering quality work that stands the test of time.
Have questions about interlocking, concrete, fencing, or decking projects? Here are answers to some of the most common questions we receive.
Yes. We complete projects for homeowners, businesses, and commercial properties, ranging from small residential installations to large-scale outdoor construction.
Project timelines vary depending on size, design complexity, and weather conditions, but most residential interlocking projects are completed within a day to a week.
Interlocking offers flexibility, durability, and easier repairs compared to traditional poured concrete. It also provides more design options in terms of colors and patterns.
Yes. Proper excavation and base preparation are critical for long-lasting results, and our team ensures every project is built on a strong foundation.
Absolutely. We work with you to create layouts, select materials, and develop designs that match your vision and property.
Pricing depends on project size, materials, site conditions, and design details. We provide detailed estimates after an on-site consultation.
Spring through fall is ideal for outdoor construction, but booking early helps secure preferred scheduling.