How Much Does a Basement Renovation Cost in Toronto? 2026 Guide

 

So, you’ve decided that your Toronto home needs more useful and functional space, so the first thing that probably came to your mind was the basement. And the main question people search for online in this case is “basement renovation cost.” 

To save you time searching, we’ll start by giving you a general estimate: in 2026, the standard basement renovation cost in Toronto ranges from $65 to $130+ per sq ft, or from $50,000 to $95,000, depending on the size, scope of work, and finish level. Below, you’ll find a complete breakdown of costs based on various parameters.

5 Things That Change Your Basement Renovation Cost

There are a number of factors to consider when estimating the total basement renovation cost:

• The square feet of your basement (the larger the area, the higher the cost);
• Labour cost (the more complex your project, the more you’ll pay to contractors);
• The existence of an escape hatch (installing an egress window for emergency times also increases the total project cost);
• The floor quality (carpet, engineered wood, laminate, or tile all come at different price points);
• Bathroom addition (adding a bathroom to the basement adds a significant price to your basement renovation project). 

Now you have a better understanding of why it’s impossible to provide an exact estimate for the basement renovation cost in Toronto. Depending on your budget, you can play around with various factors to get to a price that works for you. Anyway, the WillFix team is always happy to offer you flexible financing options.

Basement Renovation Cost in Toronto 2026 Breakdown

The phrase “depends on” sounds quite vague and doesn’t really help when preparing a realistic budget, right? We understand this and are ready to help by providing the same basement renovation cost estimates below, but broken down by three criteria: size and scope of work, finish level, and the specific type of room. In addition, we’ve included a basement renovation cost calculator to make the first step toward your project even easier.

Cost by size and project scope

Square footage alone doesn’t determine the price, but it’s the fastest way to get a sense of the price range before considering the cost of finishes or add-ons. We’ve also included examples of the scope of work that usually applies to a basement of this size.

Size	Estimated cost	Typical scope
400-500 sq ft	$40,000-$55,000	A single-purpose room: home office, gym, or small den
500-600 sq ft	$45,000-$70,000	Main room + a compact bathroom
600-700 sq ft	$50,000-$80,000	Family room + 1 bedroom
700-900 sq ft	$60,000-$95,000	Full layout: living room + bedroom + bathroom
900-1,200 sq ft	$80,000-$130,000	Multi-purpose space: 2 bedrooms + bathroom + wet bar

Larger basements cost more not only because there’s more floor to cover, but also because of the addition of plumbing runs for a bathroom, extra doors, and more electrical circuits. All of this pushes the number up faster than you might expect based on square footage alone.

Cost by tier

A $65 per sq ft basement and a $130 per sq ft basement aren’t the same project with different price tags. They’re different finishes entirely. Here’s what separates the tiers:

Tier	Cost per sq ft	What’s included
Budget / basic	$65-$80	Framing, insulation, and drywall, plus standard lighting, paint, basic trim, and laminate or LVP flooring
Mid-range	$80-$110	Everything in Budget, plus upgraded flooring such as LVT or engineered wood, recessed lighting, nicer trim, and a bathroom where the layout needs one
Premium	$110-$130+	Everything in Mid-range, plus custom millwork, upgraded bathroom tile, heated floors, soundproofing, a wet bar, and built-in cabinetry

Notice that the jump between tiers isn’t really about materials. Laminate flooring and engineered wood aren’t that far apart in price. What changes is the labour: more trim work, tighter tile work, and custom builds all take more hours.

Cost by project type

Size and tier tell you the general range, but most Toronto homeowners really ask about one specific room. Here’s the basement renovation cost for the six most common room types our team works on across the GTA.

Family room

Most often, homeowners convert their basement into a family room. This is a straightforward and less expensive project compared to other options. It doesn’t require plumbing, needs minimal permits, and fits into most home layouts without major structural changes.

Line item	Cost range
Framing & insulation	$5,000-$9,000
Drywall & finishing	$4,000-$7,000
Flooring, LVP, 700 sq ft	$3,500-$6,000
Electrical & recessed lighting	$2,500-$5,000
Paint & trim	$2,000-$4,000
Total (700-900 sq ft)	$35,000-$55,000

A family room like this is also the easiest scope to expand later. Plenty of homeowners finish this part first, then add a bathroom or bedroom in a second phase if the budget allows.

Room + bathroom addition

Adding a bathroom changes the entire scope of the project the moment there’s no existing rough-in to build from.

Line item	Cost range
Room scope (above)	$35,000-$55,000
Bathroom rough-in (if none exists)	$8,000-$15,000
Bathroom finishes (tile, vanity, toilet, fixtures)	$7,000-$12,000
Total	$50,000-$82,000

A bathroom without an existing rough-in is the priciest line item on this whole list, and the reason comes down to what’s under the floor. Getting drain lines in means cutting into the concrete slab, and most basements also need an ejector pump to move waste up to the main sewer line since the basement sits below it. Skip that step because a rough-in is already there, and the bathroom cost falls to roughly $15,000 to $25,000.

Room + bedroom addition

A basement bedroom looks simple on paper, but Ontario’s code requirements add a step most homeowners don’t budget for upfront.

Line item	Cost range
Room scope (above)	$35,000-$55,000
Bedroom framing & drywall	$3,000-$5,000
Egress window, required for all basement bedrooms	$3,000-$6,000
Closet, door, light, paint	$1,500-$3,000
Total	$42,500-$69,000

Every basement bedroom in Ontario needs an egress window that meets fire code. The Ontario Building Code sets a minimum clear opening of about 3.8 sq ft, with no side smaller than 15 inches, so someone can actually climb through in an emergency. And this isn’t optional.

Home office

With more Toronto homeowners working from home at least part-time, a basement office has become one of the more requested small-scope projects.

Line item	Cost range
Framing, drywall, flooring (200-400 sq ft room)	$10,000-$18,000
Dedicated electrical circuit, CAT6/data cabling	$1,500-$3,000
Lighting (task + ambient)	$1,000-$2,500
Paint, trim, door	$1,500-$3,000
Total	$15,000-$30,000

Square footage and simplicity keep this one affordable: no plumbing to route, no code triggers like an egress window, and a smaller footprint than a family room or bedroom. It’s also one of the better resale bets on this list, since a dedicated office is still a selling point for GTA buyers who work from home some or all of the week.

Game room

A basement game room adds a step the other small projects don’t need: keeping the noise contained to one part of the house.

Line item	Cost range
Soundproofing (mineral wool + resilient channels)	$3,000-$6,000
Framing, drywall, paint	$6,000-$10,000
Flooring (carpet or LVP)	$3,000-$5,000
Lighting (dimmable with blackout control)	$1,500-$3,000
Wet bar (optional)	$5,000-$12,000
Total without wet bar	$30,000-$57,000

Soundproofing is the line item most homeowners underestimate here. Skipping it saves a few thousand dollars upfront but is often the first thing people regret once the space is finished and sound carries upstairs.

Basement home gym

Of all the room types on this list, a home gym asks for the least construction and delivers one of the fastest turnarounds.

Line item	Cost range
Concrete-levelling or rubber flooring (impact-resistant)	$2,000-$4,000
Framing and drywall (partial)	$3,000-$6,000
Mirrors (one wall)	$800-$2,000
Ventilation (exhaust fan or ERV)	$1,500-$3,000
Electrical (GFCI outlets, upgraded lighting)	$1,500-$3,000
Total	$12,000-$25,000

Flooring and airflow are what actually matter here. Rubber or impact-rated flooring holds up under dropped weights, and a basement without decent ventilation gets stuffy fast once you’re using equipment.

Basement renovation cost calculator

Want to get a number specific to your basement? We’ve developed an easy-to-use basement renovation cost calculator for you. Here’s how to use it:

• Choose your renovation level, from a basic open rec room to a full legal suite with a kitchen and fire separation;
• Then enter your basement’s square footage (from 200 to 3,000 sq ft);
• Add any additional features you want: an extra bathroom, a kitchenette or wet bar, a separate side entrance, or an egress window;
• Get a minimum and maximum cost estimate in Canadian dollars.

That’s easy, right? Let’s get started.

Keep in mind this number is approximate. It gives you a solid starting point for budgeting, but your actual basement renovation cost depends on details a calculator can’t see: wall condition, existing plumbing, etc. For an exact price, contact the WillFix team, and we’ll walk the space with you in person.

How to Save on Basement Renovation Cost

We understand that basement renovation isn’t cheap, so we’ve put together a few tips on how to save money without sacrificing project quality:

• Treat wall painting as a weekend hobby; sometimes there’s no need to hire a contractor for this;
• Trim work. You can also do it yourself; it will take you about three to four weekends, and the tools you’ll need are a mitre saw and a nail gun;
• Be your own general contractor. Coordinate the basement renovation project yourself and save an average of $8,000 to $10,000;
• Consider buying reconditioned tools. This will save you about 30–50% on costs;
• If your basement is too low and you need basement underpinning, take advantage of our financing options to get it done now and pay later.

With these strategies in place, you can reduce your basement renovation costs by about 30%, which is a significant amount. For a 100-square-foot space, that’s roughly $3,000–$5,000, bringing the total cost to $45,000–$47,000.

Why Toronto Homeowners Trust WillFix With Their Foundation

For 20 years, WillFix has been providing turnkey basement underpinning services, helping homeowners throughout Toronto, Mississauga, Hamilton, Vaughan, and other cities across the GTA get their basements ready to renovate. We’re fully licensed and insured in Ontario and handle every stage of the project: from the initial consultation and permits through to the structural work itself. If you’re interested in our basement underpinning services, feel free to contact us for a free, no-obligation estimate.

Basement Renovation Cost FAQ