How Much Does a Basement Renovation Cost in Canada in 2026?

Basement Renovation Costs: Key Insights

• The average basement renovation cost per square foot ranges from $50 to $100, but full-scope projects with bathrooms, kitchens, or secondary suites can push well above that.
• Adding a bathroom to a basement adds $8,000 to $20,000 to a project, with most of that increase driven by plumbing rough-in when drain lines need to be cut into the concrete slab.
• Home office conversions are among the lower-cost basement projects, typically running $5,000 to $15,000, with most of the budget going to insulation, drywall, flooring, and electrical.
• Secondary suite conversions require an electrical panel upgrade in most cases: budget $2,000 to $5,000 for the panel alone, on top of the general renovation costs.

In this guide, you’ll read about:

1. Basement Renovation Project Costs Across Canada
2. Bathroom Renovations
3. Game Room Renovations
4. Kitchen Renovations
5. Home Office Setup Renovation
6. Whole Basement Renovation
7. Find a General Contractor on HomeStars
8. Frequently Asked Questions

Basement Renovation Costs Across Canada

If you have been thinking about getting a basement renovation done, it's likely that you are trying to make the most of your available space. Whether you are looking for small finished basement ideas or the basement renovation cost, hiring a contractor is the best way to go about this project. As a basement renovation can include bathroom renovations, game room renovations, home office setup, kitchen renovation and whole basement renovation, it is best to hire a professional who has the appropriate licences and equipment to finish the project.

Here are some typical basement renovation costs across Canada:

City	Typical Cost Range
Barrie	$10,000 to $50,000
Calgary	$15,000 to $55,000
Edmonton	$10,000 to $50,000
Hamilton	$5,000 to $45,000
Oshawa	$10,000 to $50,000
Ottawa	$10,000 to $55,000
Toronto	$15,000 to $65,000
Vancouver	$15,000 to $65,000

For more on what drives labour costs on larger renovation projects, see the cost of hiring a general contractor.

Find a general contractor on HomeStars

Bathroom Renovations

Whether you are upgrading or doing a complete renovation, a bathroom upgrade in your basement can have a huge impact on the space. From expanding powder rooms into full bathrooms to redoing the tiles, tubs and toilet, these upgrades can add a new dimension to your space.

If you are doing a complete renovation, you can also check with your bathroom contractor about redoing or upgrading the electrical or plumbing work, to make sure there's no risk and that all safety procedures are followed.

Typical basement bathroom costs:

• Powder room (toilet and sink): $8,000 to $12,000
• Full bathroom with shower or tub: $13,000 to $20,000
• Rough-in plumbing (cutting into slab for drain line, if not already in place): $2,000 to $5,000
• Permit fees: $200 to $600 depending on municipality

Game Room Renovations

If you are wondering how to frame a basement to add an extra game room, your basement contractor can help you find the best way to do the same. From adding a console for your video games to making a full game room with a pool table or other games, they can suggest a floor plan that meets all your needs.

You can also make the most of this space by asking your contractor for ideas that turn game rooms into more functional areas such as an entertainment room.

Typical game room costs:

• Basic game room (flooring, lighting, drywall): $20,000 to $30,000
• Game room with wet bar or built-in cabinetry: $30,000 to $45,000
• Wet bar addition: $5,000 to $15,000 depending on plumbing requirements
• Flooring (luxury vinyl or carpet): $3 to $8 per square foot installed

Kitchen Renovations

If you are planning to rent out your basement or build an intergenerational suite, you will likely need a kitchen renovation. For a basement that functions as a family room or an entertainment zone, a kitchen can come in handy for making quick snacks and drinks. You can also ask your contractor about any home renovation tax credit you can claim for this project.

From upgrading backsplashes or adding modular touches to expanding the kitchen to fit in more appliances, there are many ways to upgrade your basement kitchen. Depending on the available space and needs, your contractor can suggest the best plan for this.

Typical basement kitchen costs:

• Cabinetry and countertops: $5,000 to $15,000
• Appliances (fridge, stove, dishwasher): $2,000 to $6,000
• Plumbing (new drain and water lines): $2,000 to $5,000
• Electrical upgrades: $1,500 to $4,000

The multi-generational home renovation tax credit can provide up to $7,250 back on eligible projects creating a secondary suite for a senior or a family member eligible for the disability tax credit. Confirm with your contractor and a tax professional whether your project qualifies before work begins.

Home Office Setup Renovation

Adding a home office setup is a common trend in basement renovations. With many people moving to remote or hybrid work, having a designated home office to separate your work and leisure is a good idea.

Modern basement renovations often include a home office with a desk, office storage space and comfortable seating. You can talk to your contractor about small office spaces that can fit into any basement. These can include wall storage and modular desks to allow more flexibility of space.

Typical home office costs:

• Framing, insulation, and drywall: $3,000 to $7,000 for a mid-sized room
• Flooring (hardwood or luxury vinyl): $2,500 to $5,000 installed
• Electrical (outlets, dedicated circuits, pot lights): $800 to $2,500
• Built-in storage or modular desk: $1,500 to $4,000
• Egress window (if natural light is a priority): $2,000 to $4,500 per window installed

Whole Basement Renovation

If you are wondering how much does it cost to renovate a basement from top to bottom, your contractor can help you with an estimate based on the work you want to get done.

A basement renovation can include all of the above: bathroom and kitchen renovation, upgrading plumbing or electrical work, and adding rooms or storage with a carefully drawn floor plan. Depending on the projects you get done in your basement, the cost may differ. The average basement renovation cost per square foot for a full project typically runs $50 to $100, or $35,000 to $100,000 for a standard 700 to 1,000 square foot basement.

Cost factors that can push the total higher:

• Ceiling height: low ceilings may require underpinning to meet minimum height requirements, adding $30,000 to $80,000 or more
• Waterproofing: if the basement has moisture issues, addressing them before finishing adds $5,000 to $15,000 on average
• Permits: a full renovation with structural, electrical, and plumbing work typically requires multiple permits, with fees ranging from $500 to $2,500 depending on scope and municipality
• Secondary suite compliance: meeting fire separation, egress, and ventilation standards adds cost but is required to rent the space legally

For a broader view of whole-home project costs, see the home renovation cost guide.

Get matched with basement renovation pros near you

Find a General Contractor on HomeStars

After you receive custom quotes for your project, there are a few more things you can check on the contractor's profile to make sure you hire the right person for the project. HomeStars connects you with general contractors near you so you can read reviews from other homeowners, compare profiles, and make an informed decision before any work starts. Post your project for free, describe what you want to build, and let interested pros respond with their assessments and quotes.

Post your basement renovation project on HomeStars

Frequently Asked Questions

How long does a basement renovation take?

A basic basement finishing project (framing, drywall, flooring, and lighting) typically takes four to eight weeks. A full renovation that includes a bathroom, kitchen, or secondary suite can take three to five months, particularly when permits need to be pulled and inspections scheduled at multiple stages. Your contractor should be able to give you a realistic timeline once they have reviewed the scope.

Do I need a permit for a basement renovation in Canada?

Most basement renovation projects require at least one permit, and larger scopes typically require several: structural, electrical, plumbing, and HVAC permits are all common on full renovations. The specific requirements depend on your municipality. Unpermitted work can complicate your home sale and may need to be redone at your expense, so confirming permit requirements before work starts is important.

What is the return on investment for a finished basement?

A finished basement generally adds between 50% and 75% of the renovation cost back to the home's resale value, according to industry estimates for the Canadian market. A legal secondary suite tends to return more than a recreational space because it generates rental income and appeals to a broader pool of buyers. In markets like Toronto and Vancouver, a well-finished basement suite can recover a larger share of its cost than in smaller cities.

Can I renovate my basement if it has water issues?

Water issues should be addressed before any finishing work starts. Framing, insulation, and drywall over a damp or leaking foundation traps moisture, which leads to mould and structural damage within a few years. A waterproofing assessment is typically the first step, and most contractors will either flag the issue or refer you to a waterproofing specialist before proceeding. This is a service you can find on HomeStars before work begins. For a breakdown of repair options and costs, see our basement waterproofing cost guide.

What affects the cost of basement renovation per square foot?

The basement renovation cost per square foot depends on the finish level, the trades involved, and local labour rates. A basic space with drywall, flooring, and lighting sits at the lower end of the range, while a project that includes plumbing, a kitchen, or a secondary suite adds significant cost per square foot. On HomeStars, you can describe your specific scope when posting your project so that pros can respond with quotes based on your actual situation rather than a generic estimate.