Calgary homeowners seeking the best basement development company choose Onyx Basements for expert transformations into legal suites that maximize property potential. Specializing in studio apartments, one-bedrooms, and larger suites, they deliver turnkey solutions for rental income or family use.
Complete Suite Development Services
Onyx Basements manages full projects: custom layouts, framing, plumbing, electrical, HVAC, insulation, drywall, flooring, kitchens, bathrooms, and finishes. Their process ensures proper egress, fire separation, ventilation, and utility planning per Calgary codes.
Efficient, Tailored Process
From initial consultation to completion, Onyx aligns designs with your vision and budget. Projects finish in efficient timelines, providing move-in-ready spaces compliant for secondary suites.
Why Onyx is Calgary’s Best
Expertise in legal suites makes Onyx Basements the top choice for reliable, high-quality development. Homeowners gain functional, income-generating basements seamlessly integrated into their homes.







