Toronto & GTA’s Trusted Commercial Design-Build & Tenant Improvement Contractor

Your Partner in Commercial Design-Build & Construction Across the GTA

With over 40 years of experience, TH Design Build delivers end-to-end commercial construction services across Toronto and the GTA. Our team manages every stage — from space planning, permit drawings, and engineering coordination to construction, finishes, and move-in readiness. We specialize in office renovations, tenant improvements, and landlord upgrades, creating efficient, functional, and visually impressive spaces that enhance property value and elevate client satisfaction.

We work closely with architects, engineers, landlords, and business owners to deliver turnkey solutions that meet deadlines, budgets, and building code requirements.

Our turnkey services include:

• Space planning and design
• Permit drawings and applications
• Electrical, HVAC, and plumbing coordination
• Office build-outs, suite divisions, and reconfigurations
• Landlord upgrades and tenant improvements
• Project and trade management

At TH Design Build, we combine decades of construction experience with a detail-driven approach to create workspaces that inspire productivity and elevate property value. Our team manages every aspect of the project — from mechanical, electrical, and structural coordination to finishes, millwork, flooring, and lighting upgrades — ensuring seamless execution at every stage. Whether it’s reconfiguring an office, refreshing a tenant suite, or revitalizing a building’s common areas, we deliver efficient, cost-effective, and visually impressive results.

We’re known for clear communication, fast turnaround, and uncompromising craftsmanship — values that have earned the trust of landlords, property managers, and business owners across the GTA.

Transforming Commercial Spaces with Expertise & Precision

Comprehensive Commercial Build Solutions

TH Design Build provides complete commercial design-build and renovation services for landlords, property managers, and business owners throughout Toronto and the GTA. Whether you’re dividing a floor for new tenants, modernizing an office, upgrading a lobby, or enhancing the building exterior, our team handles every phase — from design coordination and permits to final finishes — with precision and efficiency.

Design and Planning

Smart space planning and design concepts tailored to your business needs — ensuring flow, functionality, curb appeal, and code compliance.

Construction & Project Management

From demolition to final finishes, we oversee every trade, schedule, and detail — both interior and exterior — to deliver quality results on time and on budget.

Your single point of contact for the entire project — coordinating architects, engineers, and contractors with accuracy and professionalism.

End-to-End Project Oversight

Our Design-Build Process

Our streamlined design-build process keeps your project organized, efficient, and transparent from concept to completion. By combining design, engineering, and construction under one team, we simplify communication, reduce costs, and deliver faster results.

🔹 Step 2: Design Development

Our team prepares detailed drawings, coordinates with engineers, and manages all permit applications for a smooth approval process.

🔹 Step 3: Construction & Coordination

We manage trades, timelines, and materials with precision — ensuring every phase meets our quality standards.

🔹 Step 1: Discovery & Planning

We assess your goals, budget, and space requirements to create a practical plan that meets your objectives.

Step 4: Finalization & Handover

We complete inspections, address any finishing details, and deliver a move-in-ready space that reflects your vision.

Who We Work With

• Property Management Companies

• Office Landlords

• Corporate Tenants & Small to Medium Businesses

• Multi-Residential Owners (apartments, retirement residences) – common areas + turnovers

• Real Estate Agents, Brokers & Tenant Reps

• Developers, Architects, and Engineers

40+

Clients Served

Years in business

40,000+

20,000+

8,000+

Projects Completed

Whether managing suite turnovers, lobby upgrades, or full office build-outs, we take care of every detail — inside and out. From interior renovations and common-area modernizations to exterior facelifts and accessibility improvements, our team helps maximize property value, attract tenants, and deliver exceptional results with minimal disruption.

Our team has successfully delivered projects for leading commercial property groups and building owners across Toronto and the GTA.

Trusted by Leading Property Managers, Developers, and Businesses Across the GTA

Here is what our clients say

They managed our lobby and corridor renovation flawlessly. Minimal disruption to tenants, and the space now feels high-end and cohesive.

- David P., Project Manager

I appreciated how transparent they were throughout the process — every quote, every update, every design choice was explained clearly. The finished space exceeded expectations.

- Clarice K., Property Manager

★★★★★

★★★★★

★★★★★

I can not say enough good things about TH Design - everything was delivered well beyond our expectations, fully on budget and well before our set timeline.

- Jennifer R., Condo Board Member

From initial consultation to final walkthrough, the process was seamless. The communication was consistent and the workmanship top-notch.

- Yona D., CEO

★★★★★