About Us

KOSTR Contracting is a locally owned and operated company serving Calgary and the surrounding areas.

We deliver reliable services for both large and small commercial projects. With a skilled team and years of experience, we make sure every job is completed on time and to your satisfaction.

We specialize in a range of services including earthworks, underground stormwater management systems, retaining walls, septic field design, servicing and installation, and private utility work.

We’re proud of our ability to handle the niche jobs others shy away from.

Every project starts with a free estimate — contact us today to get started.

Our Commitment

Quality Workmanship

We take pride in delivering high standards on every project—big or small. Our focus on precision, materials, and attention to detail ensures lasting results that meet or exceed expectations.

Experienced Team

Quality Workmanship

With years of hands-on industry experience, our crew brings practical knowledge and problem-solving skills to every job. We’re equipped to handle complex challenges with efficiency and confidence.

Safety

Quality Workmanship

Safety

Safety is built into everything we do. We follow rigorous protocols to protect our team, clients, and the public—prioritizing a secure work environment without compromise.

About Us

Our Commitment

Quality Workmanship

Quality Workmanship

Quality Workmanship

Experienced Team

Quality Workmanship

Quality Workmanship

Safety

Quality Workmanship

Safety

PROJECT PARTNERS

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