Commercial Contractors in Thunder Bay
Grand Contracting is a professional, reliable, and quality-focused commercial contractor serving Thunder Bay and Northern Ontario. We deliver commercial renovations, tenant improvements, property maintenance, and specialized trades built to commercial-grade standards for our extreme climate — organized into three focused service areas below.
Our Commercial Service Areas
Explore each area in detail — or call us to scope a project that spans all three.
Why Choose Grand Contracting for Commercial Work?
Professional, reliable, and quality-focused, with professional project management built around your timeline and ROI.
Professional Project Management
A single point of contact manages your project from scoping to handover — timelines, budgets, and trade coordination handled professionally so you stay focused on running your business.
Permits & Code Compliance
We pull the permits and build to commercial-grade standards and local code requirements, so your renovation is documented, inspected, and compliant.
Trade Coordination
Our coordinated trades — framing, electrical, plumbing, drywall, painting, and finishing — work to one schedule, reducing downtime and avoiding costly overlap.
Premium Materials
We specify commercial-grade, durable materials built to perform in Thunder Bay's extreme climate and high-traffic commercial environments.
Schedule a Commercial Site Visit
Call (807) 709-7189 or request an estimate online to schedule a commercial site visit. Grand Quality • Fair Price.