Division 7 Contractors in Toronto
Nusite Group is a commercial specialty contractor delivering Division 7 scopes on large-scale building projects across Toronto and the GTA. As one of the region’s leading division 7 contractors, we specialize in the thermal and moisture protection systems that safeguard structural performance and long-term building integrity. General contractors and construction managers engage Nusite Group when a project’s building envelope, waterproofing, and roofing systems demand technical precision and dependable execution rather than commodity labour.
Established in 1990, we operate as a specialty contractor built to integrate into complex construction teams and execute Division 7 work to specification, on schedule, and within demanding site conditions.
Partner with Proven Division 7 Expertise
With 35+ years of experience in the construction industry, Nusite Group is a trusted Division 7 partner for high-rise construction and commercial projects across Toronto, Southern Ontario, and the wider Ontario market. We are fully bonded, licensed across Ontario, and insured to $10 million in liability coverage — credentials that reflect the scale and complexity of the projects we support.
Construction managers, project managers, and property managers partner with Nusite Group for the building envelope, waterproofing, and roofing scopes that demand a proven specialty contractor. To discuss your project’s Division 7 requirements or request a consultation, contact Nusite Group.
Understanding Division 7: Thermal and Moisture Protection
Division 7 is the section of the construction specification system (CSI MasterFormat) that governs thermal and moisture protection — the systems that collectively form a building’s envelope. It encompasses waterproofing and dampproofing, thermal insulation, air and vapour barriers, membrane and steep-slope roofing, flashing and sheet metal, firestopping, and joint sealants and expansion systems. Together, these assemblies control the movement of water, air, vapour, and heat across the building enclosure.
On a commercial project, Division 7 is where the structure meets the elements. A correctly designed and installed building envelope keeps water out of below-grade structures and occupied spaces, manages condensation, supports energy performance, and protects the structural systems beneath it. Because these requirements intersect with the Ontario Building Code and project-specific performance specifications, Division 7 work requires a contractor who understands both the systems and the standards that govern them.
Why Division 7 Specifications Matter for Commercial Projects
Division 7 specifications are not interchangeable line items. They define the standards, materials, and installation methods a project must meet to achieve code compliance and long-term performance. On commercial and institutional builds, these specifications carry direct consequences: envelope assemblies must satisfy the Ontario Building Code and applicable municipal requirements, and they are frequently tied to the approvals and inspections that govern occupancy.
When Division 7 systems are executed to specification, they support a clean path to occupancy approval and protect the owner against premature failure, water intrusion, and costly remediation. When they are not, the outcome is rework, schedule disruption, compliance issues, and risk that carries through the life of the building. For general contractors and project managers, selecting a specialty contractor who treats compliance and specification adherence as non-negotiable is one of the most effective ways to mitigate envelope risk on a project.
How Nusite Group Executes Division 7 Specifications
Nusite Group executes Division 7 scopes as an experienced specialty partner integrated into the broader construction team. Our work spans waterproofing systems, thermal and moisture protection assemblies, membrane and specialty roofing, joint and expansion systems, and the detailing that ties them together. We review the specification, coordinate scope with the general contractor and trades, and apply current materials and installation technology suited to each system and substrate.
Division 7 systems we self-perform include:
- Below-grade and blindside waterproofing
- Podium decks, ramps, and parking structure waterproofing
- Elevator pit waterproofing
- Crack and curtain wall injection systems
- Expansion joint systems
- Traffic coating systems
- Membrane and specialty commercial roofing
- Air and vapour barrier and surface protection systems
As an established division 7 contractor in Toronto, we bring technical depth across below-grade waterproofing, podium decks and parking structures, building envelope assemblies, and commercial roofing — the high-complexity applications where execution quality determines long-term outcomes. Our crews work to defined scopes, document their work, and deliver to the performance standards each specification requires, with disciplined attention to site coordination, safety, and schedule.
FAQ
What is Division 7 in construction?
Division 7 is the section of the CSI MasterFormat specification system covering thermal and moisture protection — the assemblies that form a building’s envelope. It includes waterproofing and dampproofing, thermal insulation, air and vapour barriers, membrane and steep-slope roofing, flashing and sheet metal, firestopping, and joint sealants and expansion systems. Collectively, these systems control the movement of water, air, vapour, and heat across the building enclosure.
What does a Division 7 contractor do on a commercial project?
A Division 7 contractor installs and integrates the thermal and moisture protection systems specified for a project, coordinating that scope with the general contractor and other trades. On commercial and institutional builds, this means executing waterproofing, building envelope, and roofing assemblies to the performance standards defined in the specification — work that protects the structure, supports code compliance, and determines long-term building performance.
How does Division 7 relate to the Ontario Building Code?
Division 7 assemblies must satisfy the Ontario Building Code and applicable municipal requirements, and they are frequently tied to the inspections and approvals that govern occupancy. Because envelope performance carries direct compliance and durability consequences, Division 7 work requires a contractor who understands both the systems and the standards that apply to them.
What types of projects does Nusite Group handle?
Nusite Group focuses on large-scale commercial, institutional, and high-rise construction projects across Toronto, the GTA, and Southern Ontario. We work as a specialty subcontractor integrated into larger construction teams, handling complex Division 7 scopes such as below-grade waterproofing, podium decks and parking structures, building envelope assemblies, and commercial roofing.
How do I engage Nusite Group for a Division 7 scope?
General contractors, project managers, property managers, and facility managers can contact Nusite Group to discuss a project’s Division 7 requirements, request a consultation, or invite us to bid or prequalify. Established in 1990, we are fully bonded, licensed across Ontario, and insured to $10 million in liability coverage.
