How much should I budget for drywall work in a Toronto triplex conversion to maximize rental income?

Budget $15,000-$35,000 for the drywall scope of a Toronto triplex conversion, but the total project cost will be $150,000-$400,000+ depending on the building's condition and your finishing level. Drywall represents roughly 10-15% of your total renovation budget, but it's critical for maximizing rental income because tenants judge apartment quality primarily on wall and ceiling finish quality.

Drywall-Specific Costs for Triplex Conversion

Fire separation requirements will drive your highest drywall costs. Ontario Building Code requires 1-hour fire separation between dwelling units, which means double layers of 5/8-inch Type X drywall on all party walls and ceilings. This fire-rated assembly costs $6-$10 per square foot installed versus $3-$5 for standard walls. A typical triplex has 800-1,200 square feet of fire separation surfaces, so budget $5,000-$12,000 just for fire-rated drywall assemblies.

Sound isolation is equally important for tenant satisfaction and rental income. Toronto tenants expect quiet units, and poor sound control leads to complaints, turnover, and lower rents. Install resilient channel with double 5/8-inch drywall on party walls and ceilings between units. This assembly achieves STC 55-60 (exceeding the code-minimum STC 50) and costs $8-$12 per square foot. For premium units, consider QuietRock soundproof drywall at $55-$90 per sheet — expensive upfront but justifies $100-$200 higher monthly rent per unit.

Finish level directly impacts rental rates. Level 4 finish with smooth ceilings commands $200-$400 more monthly rent than textured walls and popcorn ceilings. Budget $3-$5 per square foot for Level 4 finish throughout, or $4-$6 for Level 5 in living rooms and bedrooms where tenants notice imperfections under raking light from windows.

Unit-by-Unit Breakdown

Each 600-800 sq ft unit typically requires:

• 1,200-1,600 sq ft of wall drywall: $3,600-$6,400


• 600-800 sq ft of ceiling drywall: $2,100-$4,400


• Fire separation assemblies: $1,500-$4,000


• Total per unit: $7,200-$14,800

Basement unit considerations: If converting the basement to a third unit, you'll need moisture-resistant drywall throughout and proper vapour barrier installation. Basement units require minimum 1.95-metre ceiling height under Ontario Building Code — factor in bulkheads around ductwork and beams that reduce rentable space but require additional drywall finishing.

Maximizing Rental Income Through Drywall Choices

Smooth ceilings are non-negotiable in today's Toronto rental market. Removing popcorn/stipple texture and achieving smooth Level 4 finish adds $2-$4 per square foot but increases rental appeal dramatically. Tenants associate textured ceilings with outdated, low-quality units.

Bathroom and kitchen drywall should be mould-resistant (purple board) rather than standard green board. The $4-$6 per sheet premium prevents moisture damage that leads to expensive repairs and tenant complaints. Use Level 5 finish in bathrooms where steam and humidity highlight imperfections.

Condo-quality finishing in living areas justifies premium rents. This means Level 5 smooth finish, rounded corners instead of sharp metal corner bead, and perfect paint lines. The additional $1-$2 per square foot finishing cost can increase monthly rent by $150-$300 per unit.

GTA Market Realities

Permit requirements add complexity and cost. Triplex conversions require building permits, fire department approval, and multiple inspections. The fire separation drywall must be inspected before concealment — any shortcuts discovered during inspection require complete removal and reinstallation.

Seasonal timing affects costs and scheduling. Winter drywall work in unheated buildings requires temporary heating ($200-$500/month) to maintain proper compound curing temperatures. Summer work in poorly ventilated spaces may require dehumidification to prevent mould growth behind new drywall.

Toronto's housing shortage means quality rental units command premium rents, but tenants have high expectations. Visible drywall imperfections, uneven textures, or poor corner details immediately signal "cheap renovation" and justify tenant demands for lower rent.

Professional installation is essential for triplex conversions. Fire-rated assemblies must meet exact specifications — a single incorrectly placed screw can void the fire rating. Sound isolation assemblies require precise installation where one mistake eliminates the acoustic benefit. DIY drywall work in rental properties often fails inspection and requires complete professional re-work.

The drywall scope represents your most visible investment in the triplex conversion. Quality finishing directly correlates with rental rates, tenant satisfaction, and long-term property value in Toronto's competitive rental market.

Need help finding experienced drywall contractors familiar with multi-unit fire separation requirements? Toronto Drywall Installers can match you with professionals through the Toronto Construction Network who understand the specific demands of rental property conversions.