Basement Renovations in Toronto
Most basement renovation contractors in Toronto do the finishing work. VMB Group does the whole job — including the structural work that makes the renovation possible in the first place.
If your basement needs to be lowered, waterproofed, or structurally repaired before it can be finished, you don't need to hire three different companies and coordinate between them. VMB Group handles the entire scope: underpinning, waterproofing, crack repair, and full interior finishing — under one contract, one timeline, one point of contact.
What a Full Basement Renovation in Toronto Involves
A basement renovation in Toronto is rarely just about drywall and flooring. Before a basement can be finished into liveable space, it often needs structural and waterproofing work that finishing contractors aren't equipped to handle. This is especially true in older Toronto homes, where basements were built with low ceilings, aging waterproofing, and foundations that have developed cracks over decades.
A complete basement renovation may include:
Structural and waterproofing work (Phase 1):
- Basement lowering / underpinning — increasing the ceiling height by deepening the foundation
- Foundation crack repair — sealing any cracks before they become a moisture problem behind new walls
- Exterior or interior waterproofing — protecting the space from water entry before it’s finished
- Weeping tile replacement — improving drainage around the foundation
- Sump pump installation
Interior finishing (Phase 2):
- Framing and insulation
- Drywall and ceiling
- Flooring (concrete subfloor prep, LVP, tile, carpet)
- Electrical (pot lights, outlets, panel upgrade if needed)
- Plumbing rough-in (for a basement bathroom or wet bar)
- Bathroom installation
- Egress window installation (required by code for bedrooms)
- Painting and trim
VMB Group handles both phases. If you only need Phase 2, we handle that too — but we'll inspect the basement first to confirm it's ready for finishing.
Why Toronto Homeowners Choose VMB Group
20+ years in business.
VMB Group has been doing structural and finishing work in Toronto and the GTA since the early 2000s — through building code changes, permit process changes, and the full evolution of how Torontonians use their basements.
One company for the whole job.
Most basement renovation contractors in Toronto are finishing specialists. They don't do underpinning, crack repair, or waterproofing — which means you manage multiple contractors. VMB Group does everything in sequence under one contract.
Permits handled.
We manage building permit applications, engineer drawings where required, and all city inspections. We don't encourage skipping permits — and we won't work without them on structural or habitable space projects.
Financing available.
Basement renovations are significant investments. Ask us about financing options that let you start your project now and pay over time.
The VMB Advantage: Structural + Finish Under One Roof
The typical path for a Toronto homeowner renovating a basement looks like this: hire a waterproofing company, then hire a foundation contractor, then hire a finishing contractor. Each handoff creates delays, cost overlaps, and disputes about who is responsible when something goes wrong.
VMB Group's crews do all of this in sequence, with no handoffs:
- We assess the structural and moisture condition of the basement first
- We do any required underpinning, waterproofing, or crack repair
- We frame, insulate, and finish the space
- One contract covers the full scope
- One warranty covers the full job
This matters especially for underpinned basements — the most common reason Toronto homeowners undertake a major basement reno. Lowering a basement to 8 or 9 feet of ceiling height is a significant structural job. The contractor who does the underpinning needs to work seamlessly with the contractor who builds the finished space. When it's the same company, that coordination is built in.
Popular Basement Renovation Types in Toronto
Every basement renovation starts with a question: what do you want this space to become? Here are the most common uses VMB Group builds in Toronto — each has different code requirements, cost ranges, and structural implications.
Family Recreation Room
The most common renovation type. Open-concept space with pot lights, LVP flooring, a feature wall, and sometimes a wet bar. Typically doesn't require an egress window (unless adding a bedroom). Mid-range cost.
Legal Basement Apartment / Secondary Suite
One of the strongest financial cases for renovating in Toronto. A legal basement apartment generates rental income and increases property value. Requirements are strict: minimum ceiling height, separate entrance, fire separation between floors, egress window in bedroom, dedicated ventilation, electrical panel separation, and a City of Toronto permit specifically for secondary suites. VMB Group handles the full permit process for legal suites.
Guest Bedroom or In-Law Suite
A bedroom plus bathroom suite for family or long-term guests. Requires an egress window (Ontario Building Code), a full bathroom, and adequate ceiling height. Popular in East York, North York, and Etobicoke homes.
Home Office
Increasingly popular since 2020. A dedicated work-from-home space typically includes sound insulation between floors, dedicated electrical circuits, data rough-in, a separate HVAC zone, and good lighting design. No egress window required unless a bedroom is included.
Home Gym or Wellness Space
Rubber or foam flooring, reinforced ceiling for pull-up bars or suspension trainers, mirrored wall section, and adequate ventilation. Some homeowners add a sauna or steam shower. Structural floor load should be assessed if heavy equipment is planned.
Home Theatre
Acoustic insulation, stepped or tiered seating platform, projector mount, blackout capability, and dedicated electrical circuits for AV equipment. Requires careful soffit planning around ductwork.
Note:
Many renovations combine uses — a legal suite at one end and a family room at the other, for example. We design around how you actually want to use the space.
Is Your Basement Ready to Renovate?
Before finishing work begins, the basement needs to meet a few conditions:
Moisture:
No active water entry. Any cracks that allow water in need to be sealed before framing goes up — otherwise moisture gets trapped behind the walls, leading to mold within a year or two.
Ceiling height:
Toronto's building code requires a minimum ceiling height of 6'5" (1.95m) for finished basement spaces used as living areas. Most homeowners targeting a functional recreation room, home office, or bedroom suite want 7'6" to 8' or more. If your current basement ceiling is below that, underpinning is required before finishing.
Structural integrity:
oundation walls with active cracking or movement need to be stabilized before framing is attached to them.
We assess all of this at the free estimate and tell you exactly what preparation is needed before finishing can begin — and what that preparation will cost.
Basement Renovation Cost in Toronto
Basement renovation costs in Toronto vary widely depending on the scope of structural work required and the level of finish chosen.
Structural and waterproofing phase:
Work | Typical cost |
Basement underpinning (full perimeter) | $35,000 – $80,000+ |
Partial underpinning / bench footing | $15,000 – $35,000 |
Interior waterproofing + sump pump | $5,000 – $12,000 |
Exterior waterproofing | $8,000 – $20,000+ |
Foundation crack repair | $500 – $5,000 depending on type |
Interior finishing phase:
Finish level | Typical cost per sq ft | Typical total (800 sq ft basement) |
Basic (framing, drywall, flooring, paint) | $60 – $90/sq ft | $48,000 – $72,000 |
Mid-range (+ bathroom, pot lights, egress window) | $90 – $130/sq ft | $72,000 – $104,000 |
High-end (+ wet bar, custom millwork, heated floors) | $130 – $180/sq ft | $104,000 – $144,000 |
Cost to complete a basement in Toronto (structural + finish combined):
Most homeowners undertaking a full renovation — underpinning plus finish — budget $80,000 – $150,000+ for an 800–1,000 sq ft basement. Projects requiring only finishing (no structural work) in a basement that's already waterproofed and at proper height typically run $50,000 – $100,000 depending on scope.
These are ranges. The most reliable number comes from an on-site estimate after we've assessed what the basement actually needs.
Permits for Basement Renovations in Toronto
Most basement renovation work in Toronto requires one or more building permits from the City of Toronto:
Underpinning and structural work
always requires a permit and engineer drawings
Finished basement space
requires a permit when adding bedrooms (egress window required), adding a bathroom (plumbing permit), or making significant electrical changes
Egress windows
required by Ontario Building Code for any room being used as a bedroom; requires a permit
VMB Group manages all permit applications and works with licensed engineers where required. We do not encourage clients to skip permits — unpermitted basement work creates problems at the time of sale (required disclosure in Ontario) and may not be covered by home insurance if something goes wrong.
Basement Renovation Timeline
Phase | Typical duration |
Assessment + permit application | 2–4 weeks |
Underpinning (if required) | 3–8 weeks depending on scope |
Waterproofing + crack repair | 1–2 weeks |
Framing + rough-in (electrical, plumbing) | 2–3 weeks |
Inspections | 1–2 weeks |
Drywall, flooring, fixtures, paint | 3–5 weeks |
Total (structural + finish) | 12–24 weeks |
Total (finish only, no structural) | 6–10 weeks |
These are typical ranges. Timeline depends on permit processing times (which vary), the complexity of structural work, and material lead times for finishes.
Basement Renovations Across the GTA
We serve homeowners across Toronto and surrounding cities:
Toronto · Etobicoke · North York · Scarborough · East York · Mississauga · Brampton · Hamilton · Burlington · Oakville · Vaughan · Markham · Richmond Hill · Pickering · Ajax · Whitby · Guelph · Cambridge · Kitchener · Waterloo
Frequently Asked Questions (FAQ)
How much does a basement renovation cost in Toronto?
Finishing only (no structural work): typically $50,000–$100,000 for a standard 800 sq ft basement depending on scope. Full renovation including underpinning: typically $80,000–$150,000+. The range is wide because basement condition, ceiling height requirements, and finish level vary significantly. We provide free estimates based on your actual basement.
Do I need to underpin my basement before renovating?
Only if the current ceiling height is below code minimum (6'5") or below the height you want to use the space at. Many Toronto homes — particularly those built before 1970 — have basement ceilings of 6' or less. Underpinning adds 1–3 feet of ceiling height and typically takes 4–8 weeks. We assess this at the free estimate.
What permits are needed to renovate a basement in Toronto?
It depends on the scope. Structural work always requires a permit. Adding a bedroom requires an egress window (and permit). Adding a bathroom requires a plumbing permit. Basic finishing (framing, drywall, flooring in non-bedroom space) may or may not require a permit depending on the specific work. We handle all permit applications.
How long does a basement renovation take in Toronto?
Finishing only: 6–10 weeks. Full renovation with underpinning: 12–24 weeks. Permit processing is often the longest variable — the City of Toronto's permit processing times fluctuate. We apply early and plan the schedule around expected approval timelines.
Can I live in my home during a basement renovation?
For finishing work — yes, with minimal disruption. For underpinning, it depends on the scope. Most underpinning projects don't require the homeowner to vacate, but there will be periods of significant noise and dust. We'll walk you through what to expect before work begins.
What is an underpinned basement?
An underpinned basement is one where the foundation has been deepened to increase the ceiling height. The existing footing is excavated in sections and new concrete is poured deeper, effectively lowering the basement floor. It's the standard method for gaining usable ceiling height in Toronto homes with low basements. VMB Group specializes in this work.
Can I convert my basement into a legal rental apartment?
Yes — and it's one of the most financially compelling reasons to renovate in Toronto. A legal basement apartment requires a specific permit (secondary suite permit, separate from a standard renovation permit), minimum ceiling height of 6'5", a separate entrance, fire separation between floors, an egress window in any bedroom, dedicated ventilation, and electrical panel separation. We handle the full permit and construction process for legal suites.
What's included in a basement renovation quote from VMB Group?
Our quotes cover everything in scope: structural work (underpinning, waterproofing, crack repair), framing, insulation, drywall, flooring, electrical (rough-in + fixtures), plumbing rough-in, bathroom installation if applicable, egress windows, painting, and trim. We itemize each phase so you can see exactly what you're getting.
Related Services
- For the interior finishing detail: Basement Finishing Toronto →
- To increase your ceiling height first: Basement Underpinning Toronto →
- To waterproof before finishing: Exterior Waterproofing → · Interior Waterproofing →
- To repair cracks before they’re hidden behind drywall: Basement Crack Repair →
Ready to Renovate Your Basement?
Whether you need structural work first or you're ready to go straight to finishing, VMB Group will assess your basement, tell you exactly what's needed, and give you a written estimate for the full scope.
