About C3

Specialty Glazing Solutions

Who We Are.

C3 SGS is Ontario’s leading retrofit and specialty glazing company. We differentiate based on our focus on specialty glazing / custom design work. The means and methods used for these projects vary significantly from typical new construction practices. We design and implement solutions to meet performance, technical and architectural requirements, thereby maximizing your return on investment.

C3 SGS, a C3 Group company, is privately held and has been in business for over 45 years. Since 1973, C3 Group companies have worked to deliver cost effective projects that minimize risk to their clients. The result has been a long list of satisfied customers with a high incidence of repeat business.    

The C3 Group has evolved a unique “business incubator” structure to enable growth while fostering innovation and entrepreneurship. The Group is a network of multiple operating companies supported by a central management company. The central management company provides functional services such as accounting, information technology, and human resources, as well as governance functions such as risk management, strategic planning, and organizational development. This structure allows the operating companies to be technically oriented and market focused, while benefiting from a high level of professional management and infrastructure not normally available to smaller firms.

As a collective, the C3 Group of companies’ expertise extends into many types of restoration contracting, foundation systems, environmental remediation and engineering, building science and structural engineering, industrial maintenance, and advanced materials. Through the C3 Group, C3 SGS has access to a wide range of skilled staff, including over one hundred professional engineers, as well as accounting, HR, and health and safety professionals. The company is fully bondable and carries a minimum of $15,000,000 general liability insurance, which can be significantly increased on a project specific basis


Redefining Project Delivery

Our Mission & Values

C3 Specialty Glazing Solutions’s mission is to be Canada’s leading curtain wall retrofit company. Our focus is on commercial and institutional retrofit work. The majority of this work is completed on occupied buildings. We possess extensive experience working in and around occupied spaces, and understand the importance of effective communication and site control to ensure a successful project. The majority of our site supervisors have worked at C3 Specialty Glazing Solutions for over twenty years. This allows us to maintain a high degree of quality, consistency and greater control over the schedule and safety of our projects.

We believe that success in business depends on evolution, continuously improving your products and services. We believe our customers deserve a better experience – that is why Specialty Glazing Solutions has Redefined Project Delivery. It starts by really listening to you so we can understand your objectives. We measure our customer relationships in decades, not weeks; therefore our work has to last.


We believe that a project experience should be co-operative; we respect your knowledge! By partnering with the client from the start of the project, we define solutions sooner and resolve your problems quicker. Our size means we respond with senior people on site to assess the underlying cause of the problem to ensure you get the right solution, one that lasts. The results are often innovative, and always based on our practical and proven contracting experience. There are no cookie cutter solutions. Each solution is tailored to fit our customers’ needs.


We believe you deserve a solution that is the right solution for your needs! Our professional approach is based on integrity. It is companywide. We have many long-term employees committed to a culture of dependable service. Customers have one point of contact for communication and responsibility, so you get direct and honest answers. This is a big reason Specialty Glazing Solutions has such a high incidence of repeat business.

Let’s Talk About Your Project Needs 

See how our innovative engineering services can bring value to your project.

Case Study

400 University