Diamond H&A Builders

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Commercial Renovations and Tenant Improvements in the GTA

Scoped upgrades to leased and owner-occupied spaces, from layout changes to finishes, planned around your operations.

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  • 35+ years of experience
  • Licensed general contractor
  • WSIB registered
  • $5M liability insurance
  • Serving the GTA and Ontario

What we do

We handle upgrades to leased and owner-occupied commercial spaces, including layout modifications, millwork, finishes and services coordination. We work with owners, property managers, architects and general contractors, and we are used to working in spaces that stay open.

How we work

Whether the job is a tenant improvement before move-in or an upgrade to an active facility, we phase the work around your operations. Our restoration of a refrigerated distribution facility, for example, was phased so the loading dock kept operating.

What is included

  • Layout modifications and new partitions
  • Millwork and finishes
  • Concrete and loading dock work
  • Ceilings, flooring and painting
  • Services coordination with mechanical and electrical trades
  • Back-to-base restoration for tenant turnover or redevelopment
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Need windows, doors or garage doors?

We supply and install windows, entry doors and garage doors for homes and businesses across the GTA. Our sister company, Diamond Garage Pros, handles the installation as our specialist sub.

See windows, doors and garage doors

Common questions

Are you licensed and insured?

Yes. We are a licensed contractor, registered with WSIB, and we carry $5,000,000 in commercial general liability insurance. Certificates are available on request.

Can you work in occupied or time-sensitive spaces?

Yes. We are often brought in for work that has to happen around people and operations, with controlled site access, careful sequencing and after-hours work where the building needs it.

How do I get a quote?

Send the form on this page or call (647) 802-0439. We will talk through the scope with you, and if it makes sense we will visit the site before pricing.

Request a free quote

Tell us what you are planning. A real person reads every request, and we reply within one business day.

  • Free, no-pressure conversation about your project
  • Licensed, WSIB registered and fully insured
  • Clear scope before any work starts

Call: (647) 802-0439
Email: info@diamondhabuilders.com
Mailing address: 200 Consumers Road, North York, ON M2J 4R4

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