Top 5 Basement Renovation
in Toronto
We compared 5 Basement Renovation serving Toronto, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include Basement lowering, Basement underpinning, and Bench footings.
★ Toronto’s featured basement renovation have the highest score among the nearby FiveBest markets compared.

True North Underpinning is a strong fit for basement-renovation projects that require basement lowering, crawl-space conversion, waterproofing, plumbing, in-floor heating or a new walkout in Toronto.
Basement underpinning · Bench footings · Crawl-space conversions

Alongside its restoration work, CD Flood & Sewer Water Damage Cleanup documents basement finishing and remodeling for Toronto projects. Its services page describes custom design-and-build work plus project management and consultation, and cites conversions of dark or cluttered basements into functional living areas such as game rooms or home theatres.
Basement finishing and remodeling · Custom design and build · Project management and consultation

Royal Work Basement Waterproofing Toronto documents basement lowering and underpinning work that can create additional usable space in older Toronto homes. Its renovation-relevant services also include concrete floor installation, egress windows, and interior or exterior waterproofing where structural excavation and moisture control are part of the project.
Basement lowering · Foundation underpinning · Concrete floor installation

Aquamaster Basement Waterproofing Toronto supports basement-renovation projects by addressing structural and moisture-control work before finishing. Its Toronto office and official project pages document basement underpinning and floor lowering, bench footing and walkout basement construction, alongside interior basement waterproofing.
Basement underpinning and floor lowering · Bench footing · Basement walkout construction

Direct Basement Waterproofing Toronto is relevant to Toronto basement renovation projects requiring structural space creation or moisture control. Its documented basement-lowering work uses underpinning or bench footings to increase basement height, alongside interior and exterior waterproofing that can address leaks and dampness before finishing a space.
Basement lowering · Underpinning and bench footings · Interior basement waterproofing
Toronto basement renovation lead nearby FiveBest markets
Featured basement renovation in Toronto have a median FiveBest Score™ of 84/100, compared with 69/100 for featured basement renovation across Ontario.
Among nearby FiveBest markets, those in Mississauga (77/100) and Vaughan (74/100) and Markham (73/100) score below Toronto.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched Basement Renovation in Toronto
FiveBest reviews publicly available information for Basement Renovation serving Toronto.
- Google rating and review history
- Documented services
- Years in business when available
- Toronto and surrounding service coverage
- Business website and online presence
- Independent reputation signals when available
Research last updated: September 2026
Typical Basement Renovation Price Ranges
Price ranges are based on typical industry averages. Actual costs may vary depending on basement size, existing conditions, project scope, materials, plumbing, electrical work, insulation, flooring, permits and local market conditions.
- Basic basement finish $25,000–$55,000
- Full basement renovation $55,000–$120,000+
- Bathroom addition $12,000–$35,000
- Flooring $4–$12/sq ft
- Drywall & finishing $8,000–$25,000+
Common Services
- Basement renovation in Toronto
- Basement finishing in Toronto
- Basement remodeling in Toronto
- Basement bathroom renovation in Toronto
- Basement bedroom construction in Toronto
- Basement family room renovation in Toronto
FiveBest Match™
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FiveBest Match™ — Coming Soon 🔒How to Choose a basement renovation contractor in Toronto
Compare basement renovation contractors in Toronto for finished basements, family rooms, bedrooms, bathrooms, home offices, flooring, insulation, drywall, ceilings and complete basement remodeling. FiveBest helps homeowners compare selected local contractors based on relevant services, reputation and local presence.
Compare selected basement renovation contractors in Toronto for finished basements, family rooms, bedrooms, bathrooms, flooring, insulation, drywall and complete basement remodeling.
Investigate leaks, foundation moisture, drainage or dampness before covering walls and floors.
Ask about permits, bedroom egress, ceiling height, alarms and other requirements relevant to the planned use.
Compare insulation, air sealing and wall assemblies appropriate to the existing basement conditions.
Confirm framing, insulation, drywall, ceilings, flooring, electrical, plumbing and finishing allowances.
Confirm regulated electrical, plumbing or HVAC work is completed by the appropriate qualified trades.
Ask how unexpected moisture, foundation, plumbing or framing issues will be documented and priced.
What Affects Basement Renovation Costs
- Basement size
- Existing condition
- Moisture or water issues
- Framing and insulation
- Electrical and lighting
- Plumbing and bathroom work
- Flooring and ceilings
- Bedrooms and egress requirements
- Permits and inspections
- Level of finishes
Questions to Ask a Basement Renovation Contractor
- Have moisture or water issues been assessed?
- What insulation and wall assembly will be used?
- Are permits or inspections required for the planned work?
- If adding a bedroom, how will egress requirements be addressed?
- Who performs electrical, plumbing and HVAC work?
- What is included for flooring, ceilings and finishes?
- How are hidden conditions and change orders handled?
- What workmanship warranty is provided?
Frequently Asked Questions
Basement renovation costs in Toronto depend on the size and existing condition of the space, project scope, materials, flooring, insulation, electrical and plumbing work, bathrooms, structural changes and finishing requirements.
A basement renovation can include framing, insulation, drywall, ceilings, flooring, lighting, electrical work, plumbing, bathrooms, bedrooms, storage and living areas. The exact scope depends on the existing basement and intended use.
Permit requirements depend on the municipality and the work involved. Structural changes, plumbing, electrical work, new bedrooms and changes to exits or occupancy may require permits or inspections. Confirm local requirements before work begins.
A basement may be suitable for a bedroom when applicable requirements for ceiling height, ventilation, smoke and carbon monoxide alarms, emergency egress and other building-code provisions can be met. A contractor can help assess the existing space.
Existing leaks, moisture, drainage issues or signs of water infiltration should be investigated before finishing the basement. Covering an unresolved moisture problem can lead to damage to new materials and finishes.
Compare experience with basement projects, project scope, materials, permits, insulation and moisture considerations, written estimates, timelines, warranties and recent local reviews.