House Extension in the GTA
General information. Reno Rise focuses on basement renovations and legal secondary suites. This page describes work that independent professionals carry out; Reno Rise does not perform it.
House Extension: What to Know Before You Hire
A house extension adds square footage to an existing structure — the same project as a home addition, described the way it's more commonly searched. Cost and complexity scale with how much of the existing structure it ties into, particularly the foundation and roofline.
Professionals typically assess your existing foundation and structure before proposing an extension design, since what's tying into an existing house often costs more per square foot than a stand-alone new structure would.
What This Work Typically Includes
- Foundation and structural tie-in assessment
- Full permit and engineering handling
- Single and multi-storey extension options
- Seamless interior and exterior integration
Independent Professionals
Estimates, contracts, warranties and the work itself come from the independent professional you choose, not from Reno Rise.
Toronto First, GTA-Wide
Reno Rise is focused on Toronto basement projects and can also handle enquiries from across the Greater Toronto Area.
Check Before You Hire
Confirm credentials, insurance, references and who is responsible for permits before you sign a contract.
Ready to Start Your House Extension Project?
Reno Rise focuses on basement renovations and legal secondary suites. If you are planning other work, tell us about it and we will say whether we can point you to a suitable independent professional. Not every project can be matched.