Basement Renovations · Aurora & York Region
Basement Renovations in Aurora & the GTA
Basement renovation and finishing in Aurora, Newmarket, Richmond Hill, and York Region. From legal secondary suites to custom family spaces — structural-first basement builds by Greyfield Construction.
Basement Renovations
A Basement Built to the Same Standard as the Rest of Your Home
A finished basement adds living space, increases your home’s value, and — if designed correctly — can generate rental income as a legal secondary suite. The difference between a basement that delivers on that potential and one that causes ongoing problems comes down to how the structural and building envelope work is handled from the start.
At Greyfield Construction, every basement renovation begins with a structural assessment. We confirm ceiling heights, identify any foundation concerns, and plan the mechanical and waterproofing requirements before framing begins. This is the same structural-first approach we bring to every project, and it is what separates a basement that performs long-term from one that develops moisture issues or fails inspection.
Basement Renovation Services
- Basement design and layout planning
- Underpinning and basement lowering where ceiling height is insufficient
- Framing, insulation, and vapour barrier installation to Ontario Building Code
- Egress window installation
- Electrical, plumbing, and HVAC rough-in coordination
- Legal secondary suite and income suite construction
- Full finishing — drywall, flooring, trim, doors, and hardware
- Permit application and inspection management
Legal Secondary Suites in Aurora & York Region
A legal secondary suite requires compliance with both the Ontario Building Code and local zoning bylaws — including minimum ceiling heights, proper egress, fire separation between units, separate utility metering in some cases, and specific ventilation requirements. Greyfield Construction understands these requirements thoroughly and builds secondary suites that pass inspection every time.
If your basement ceiling is currently too low to meet minimum height requirements, we can assess whether underpinning is the right solution before the renovation begins. Many homeowners in Aurora and Newmarket have been able to create legal income suites by combining underpinning with a full basement renovation — a project that pays for itself over time.
Structural Considerations Before You Renovate
Before any finishing work begins, structural issues must be identified and addressed. Cracks in foundation walls, evidence of water infiltration, inadequate footing depth, and aging drainage systems are common in older York Region homes. Discovering these issues mid-project delays timelines and increases costs significantly. Greyfield’s pre-renovation structural assessment catches these issues upfront so your project runs on schedule and on budget.
Serving Aurora, Newmarket, Richmond Hill & the Surrounding Area
We serve homeowners throughout Toronto, Aurora, Newmarket, Richmond Hill, King City, Stouffville, and the broader York Region. Our team is based in Aurora and familiar with the permitting requirements and building conditions across the communities we serve.
Request a Basement Renovation Consultation
Tell us what you want to achieve with your basement — whether it is a family room, a rental unit, a home gym, or a multi-purpose space — and we will assess your existing conditions and put together a clear plan. Contact Greyfield Construction to get started.