• St. Catharines Concrete Services
    DEMCON Design & Build specializes commercial and residential concrete services for driveways, walkways, patios, pool decks, basement floors, curbs and parking lots.
  • St. Catharines Asphalt Contractors
    Professional and affordable asphalt company for driveways and parking lots for home and business owners across St. Catharines, Niagara Falls, Welland, Fort Erie and the surrounding cities.
  • St. Catharines Interlock Company
    We are one of the best interlock companies for driveways, walkways, patios and pool decks serving Southern Ontario communities.

Welcome to DEMCON Design & Build

Transforming Your Spaces with Quality Concrete, Asphalt, and Interlock Services

At DEMCON Design & Build, our company specializes in delivering exceptional craftsmanship and superior service in concrete, asphalt, and interlock installations. Whether you're envisioning a new driveway, walkway, patio, curb, pad, basement floor, parking lot, or pool deck, we have the expertise and dedication to bring your project to life. Over the years, we have become one of the leading asphalt, interlock and concrete companies serving St. Catharines, Niagara Falls, Niagara On The Lake, Welland, Fort Erie, Port Colborne, Dunnville, Stoney Creek, Hamilton, Burlington and the surrounding cities in Southern Ontario.

Why Choose Our Company

Expertise

With years of experience in the industry, we have honed our skills to perfection, ensuring every interlock, asphalt and concrete project meets the highest standards of quality and durability.

Custom Solutions

We understand that each project is unique. Our team of experienced contractors works closely with you to design and customize solutions that fit your specific needs and preferences.

Quality Materials

Using only the high-quality materials, we guarantee long-lasting results that enhance the beauty and functionality of your property.

Professional Team

Our skilled installers are passionate about their work, striving for excellence in every detail from start to finish.

Customer Satisfaction

Your satisfaction is our top priority. Our company aims to exceed your expectations with prompt, reliable service and results that speak for themselves.


At DEMCON Design & Build, our company specializes in delivering exceptional craftsmanship and superior service in concrete, asphalt, and interlock installations. Whether you're envisioning a new driveway, walkway, patio, curb, pad, basement floor, parking lot, or pool deck, we have the expertise and dedication to bring your project to life. Over the years, we have become one of the leading asphalt, interlock and concrete companies serving St. Catharines, Niagara Falls, Niagara On The Lake, Welland, Fort Erie, Port Colborne, Dunnville, Stoney Creek, Hamilton, Burlington and the surrounding cities in Southern Ontario.

TESTIMONIALS

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