CSL Group Ltd

Established in 1982, CSL Group is your partner for comprehensive property maintenance and construction solutions. We are industry-leading experts in municipal and commercial properties and responsible for many high-profile clients across Ontario.

CSL Group was established in 1982 when Jack Wieske began his career in the landscape industry with a pickup truck and a lawn mower. A few shorts year later the company began to grow and by completing small to medium sized landscape projects.

Today, the company employs over 200 staff members and is represented by the finest team of professionals in the industry. Jack built the company’s reputation on the values of integrity, trust, and passion for 100% client satisfaction.

CSL Construction stands apart in the industry with the professional qualifications and training of our team, coupled with the decades of practical experience in landscape design, horticulture, construction, and grounds care.

Our culture is welcoming and respectful and embodies people of different perspectives, backgrounds, talents, and belief systems. We recognize that it is our diversity in culture and perspective that makes CSL Group a successful organization.

At CSL Group, we also make health and safety one of our top priorities and this is reflected in our company values. The first thing that is required of our team members is to take responsibility for their own safety and the safety of others. We follow COR™ provincial safety standards and work hard to establish a healthy and safe environment on every job site. We strive to eliminate personal injury and workplace illness by ensuring that individual capabilities and limitations are considered in every situation. Each one of our team members is given the right tools, right equipment, and is trained in the right process to complete their work safely and successfully.

CSL Group is partnered with industry association partners including the Ottawa Construction Association, The Horticultural Trades Association of Ontario, ComplyWorks, and ContractorCheck.