If you've been looking at your unfinished basement and wondering whether it's worth finishing, you're not alone. For many homeowners in Peterborough, Kawartha Lakes and the surrounding communities, an unfinished basement represents one of the biggest opportunities to add valuable living space without building an addition.

Whether you're creating a guest suite, a teenager's retreat, a home office, or simply adding more room for your family, understanding the true cost before you begin is essential.

At On New Ground Inc., one of the most common questions we hear is:

"How much should I expect to pay for a professionally finished basement?"

The answer depends on many factors, but let's look at a typical project.

For this example, we'll assume an unfinished basement is being transformed into:

• One 10' × 10' bedroom
• Code-compliant egress window
• Three-piece bathroom
• Fully insulated and finished exterior walls
• Drywall throughout
• Interior painting (one colour)
• Standard laminate or luxury vinyl flooring
• LED pot lights throughout
• Electrical upgrades
• Complete plumbing for the bathroom
• Building permit
• Engineering (where required)
• Waste removal
• Final inspections
• 
  

Design, planning & engineering .......$1,500–$3,000

Building permits & inspections ..........$500–$1,500

Demolition & rubbish removal ............$800–$2,000

Framing & insulation ........................$3,500–$6,000

Drywall, taping & finishing ...............$3,500–$6,000

Interior painting ................................$1,200–$2,500

Standard flooring ..............................$3,000–$5,500

Electrical & pot lights ........................$3,000–$6,000

Plumbing rough-in & fixtures ..........$8,000–$15,000

Bathroom finishing ............................$4,000–$8,000

Egress window installation ...............$4,000–$7,500

Interior trim, doors & finishing ...........$2,000–$4,500

Project management & final cleanup $2,000–$4,000

For a professionally completed basement with the features listed above, homeowners in Peterborough and surrounding areas can generally expect to invest:

Homes with easier access, existing plumbing, and minimal structural work typically fall toward the lower end of the range.

Older homes, difficult excavation for the egress window, electrical service upgrades, or premium finishes can increase the investment.

Many homeowners are surprised that the bathroom represents one of the largest expenses.

Installing a bathroom in an unfinished basement often requires:

• Breaking up existing concrete floors
• Installing new drain lines
• Venting
• Water supply lines
• Sewage ejector systems (when required)
• Waterproofing
• Plumbing inspections
• Electrical work
• Waterproof flooring
• Exhaust ventilation

A properly built basement bathroom is far more involved than simply installing fixtures.

Ontario Building Code requires bedrooms to have a legal means of escape.

Installing an egress window often includes:

• Excavation
• Concrete cutting
• Foundation modifications
• Window well installation
• Drainage improvements
• Waterproof sealing
• Interior finishing

Although it represents a significant portion of the budget, it creates a legal bedroom that adds value to your home.

Every basement is different.

Your investment may increase if your project requires:

• Electrical service upgrades
• Additional structural beams
• Low ceiling corrections
• Foundation repairs
• Moisture remediation
• Relocating plumbing
• Custom tile showers
• Premium flooring
• Built-in cabinetry
• Home theatre wiring
• Heated floors
• Wet bar or kitchenette
• 
  

For many homeowners, finishing an unfinished basement is one of the best returns on investment available.

Benefits include:

• Increased home value
• More functional living space
• Additional bedroom
• Modern bathroom
• Better energy efficiency through insulation
• Increased resale appeal
• Space for family, guests or a home office
• Potential for future income opportunities where local regulations permit

A professionally finished basement not only improves your daily living but can also make your property far more attractive to future buyers.

A basement renovation involves multiple trades working together—including framing, plumbing, electrical, insulation, drywall, flooring, painting, and finish carpentry. Choosing an experienced contractor helps ensure the project is completed safely, complies with the Ontario Building Code, and passes all required inspections.

At On New Ground Inc., we manage every stage of the renovation—from planning and permits through construction and final walkthrough—so homeowners have a single point of contact throughout the project.

If you're thinking about finishing your basement, we'd be happy to discuss your ideas, review your space, and provide a detailed, no-obligation estimate tailored to your home.

Serving Peterborough, Kawartha Lakes and surrounding communities.

Ready to unlock the potential beneath your home? Contact On New Ground Inc. today and let's bring your vision to life.