General Contractor in Markham, Ontario
Renovations, fit-outs and construction in Markham, from a licensed, WSIB registered and insured contractor.
Get a Free QuoteCall (647) 802-0439- 35+ years of experience
- Licensed general contractor
- WSIB registered
- $5M liability insurance
- Serving the GTA and Ontario
Building in Markham
Diamond H&A Builders serves Markham with commercial fit-outs, tenant improvements and residential renovations, delivered by a licensed, insured and WSIB registered team.
Retail and restaurant operators in Markham benefit from our franchise and multi-location experience, including more than 55 Pizza Pizza locations across Ontario. Homeowners can count on the same disciplined approach to interior renovations and additions.
Services we provide in Markham
Commercial Interior Fit-Outs
Office, retail, restaurant and hospitality fit-outs, planned around your opening date and delivered on a clean, protected site.
Franchise and Multi-Location Rollouts
Repeatable scopes, consistent finishes and predictable timelines across every location.
Home Renovations and Additions
Kitchens, bathrooms, full-home renovations and additions, built to last and finished with care.
Washroom and Accessibility Upgrades
Full washroom renovations and accessible entry upgrades, delivered without shutting your building down.
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 doorsCommon questions
Do you work in Markham?
Yes. Markham is part of our service area, and we are licensed, WSIB registered and insured to work there. Send the form on this page or call (647) 802-0439 to start the conversation.
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