Construction and Renovation Across the GTA and Ontario
Diamond H&A Builders is a general contractor delivering commercial, industrial and residential projects. Renovate. Innovate. Elevate.
Get a Free QuoteCall (647) 802-0439- 35+ years of experience
- Licensed general contractor
- WSIB registered
- $5M liability insurance
- Serving the GTA and Ontario
Who we are
Diamond H&A Builders is a licensed general contractor and interior fit-out company. We build and renovate for businesses, property owners and homeowners, and we take on everything from a single structural opening to a rollout of dozens of locations. Our leadership brings over 35 years of hands-on construction experience.
You get a clear scope, a fixed point of contact, a site kept clean and safe, and a schedule we stand behind. Insurance and WSIB certificates are available on request.
Why clients choose us
- Licensed general contractor
- WSIB registered, $5M liability insurance
- Work planned around your operations
- Design-build and GC support under one roof
- We reply within one business day
Our services
Commercial Interior Fit-Outs
Offices, retail, restaurants and hospitality, built to brand standard.
Commercial Renovations
Tenant improvements and upgrades around your operations.
Design-Build
One team from concept to handover.
Franchise Rollouts
Consistent delivery across many locations.
Home Renovations
Interiors, additions, decks and exteriors.
Multi-Unit Residential
Suites, halls and lobbies in occupied buildings.
Structural Repairs and Steel Lintels
Engineered openings and reinforcement.
Washroom and Accessibility Upgrades
Compliant, durable and tidy.
Mould Remediation and Restoration
Contained removal and full restoration.
Flooring and Epoxy
Garages, shops and commercial floors.
Exterior and Site Maintenance
Concrete, stucco, drainage and line painting.
Construction Management
GC support and trade coordination.
Featured projects
Pizza Pizza: 55+ Locations Across Ontario
Over 55 locations across Ontario, involving full-scale interior and exterior renovations, remodeling, and custom millwork.
Steel Lintels for Custom Homes
Structural steel lintels built to engineered drawings, with temporary shoring and masonry re-instatement.
Dolan Foods Facility Restoration
Urgent masonry, structural and cosmetic repairs to a refrigerated distribution facility after a truck collision, phased to keep the dock operating.
House Renovation, Richmond Hill
New interiors, deck construction and landscaping in a full-scale home transformation.
Lavazza Coffee Shops
Interior design and fit-out of 7 coffee shop locations in Dubai, UAE, with consistent branding and high-end aesthetics.
20-Storey Apartment Building Renovation
Suite upgrades plus hallway and lobby improvements in a multi-residential building.
How we work
Talk and walk the site
Tell us what you need. We visit, measure and ask the right questions.
Scope and quote
A clear written scope, schedule and price, with no vague allowances.
Build
Permits, trades and materials coordinated, with your site protected and tidy.
Handover
Walk-through, deficiencies closed and documents delivered.
Where we work
We work across the GTA and throughout Ontario.
Windows, doors and garage doors
We supply and install new windows, entry doors and garage doors. Our sister company, Diamond Garage Pros, handles the installation as our specialist sub.
See windows, doors and garage doorsCommon 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.
Where do you work?
We work across the GTA and throughout Ontario, on residential, commercial, industrial and institutional projects.
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