Home theatres, gyms & offices
Dedicated zones for AV, fitness, or quiet work — soundproofing and layout planned from day one.
Basement RenovationsBasement Renovations in Toronto
WSIB CertifiedFamily-Run50+ Projects4.9 Google
Basement Renovations in Toronto
— Transform Your Lower Level
Basement renovation Toronto homeowners choose for clear basement renovation cost and fixed pricing — legal secondary suites, moisture management and full finishing. 50+ projects across Toronto; family-run, WSIB-certified, dedicated project manager and 10-year waterproofing warranty on qualifying work.
WSIB CertifiedFamily-Run50+ Projects4.9 GoogleGet Your Free Quote
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Why homeowners choose us
We take the stress out of basement renovations
We design and build complete basement renovations in Toronto, from layout planning and permits to waterproofing and final finishes.
You get fixed pricing, one dedicated project manager, and a proven process built around clear timelines and fewer surprises. That matters when you are investing in a space your family will use for years.
Fixed pricing
Clear breakdowns and no hidden fees. You get a detailed, fixed-price quote before work begins so you know exactly what to expect.
Dedicated project manager
One point of contact from first consultation to final walkthrough. No chasing subcontractors or wondering who to call.
On-time completion
We plan the schedule and stick to it. Milestone-based process with clear progress at every stage so your life isn’t disrupted longer than necessary.
End-to-end service
Design, permits, waterproofing, construction, and inspections under one roof. We handle everything so you don’t coordinate between trades.
What we do
Expert basement renovation services
From family-friendly living spaces to fully legal rental suites, we deliver end-to-end basement renovations designed for comfort, value, and long-term performance.
Custom design & 3D planning
Smart layouts that maximize light, space, and functionality. See your new basement in 3D before construction begins with detailed floor plans and material selections.
Start your designLegal basement apartments
Fully compliant, income-generating secondary suites built to Toronto code. We handle zoning review, permit applications, fire separation, egress, and all inspections.
Learn about suitesWaterproofing & moisture protection
Comprehensive waterproofing solutions including exterior membranes, interior drainage systems, sump pumps, and foundation crack repair. 10-year warranty on all waterproofing.
Protect your investmentAdditional services
Bedrooms & bathrooms
Guest rooms, ensuites, and full baths with proper egress, ventilation, and moisture control to code.
Walk-out basements
Separate entrances, natural light, and graded exits that support legal suites and long-term resale value.
Ceiling height optimization
Headroom strategies, soffits, and bulkheads coordinated around ducts and structure so the space feels open.
Flooring, lighting & finishes
Heated slabs, layered lighting, and durable materials chosen for below-grade humidity and daily use.
Permits & code compliance
Zoning review, building permits, inspections, and fire separation handled with your dedicated project manager.
Portfolio
Recent basement transformations
See how we transform unused spaces into beautiful, functional, and value-adding areas across Toronto.
View more projects →Cost factors
Basement renovation costs in Toronto
Budget ranges in Toronto typically run from $65 to $150+ per square foot depending on scope, finishes, and the existing conditions below grade. The goal is not a low starting number — it is a clear scope that protects you from surprises.
For deeper detail, read our basement renovation cost guide. If you are planning a combined project, explore kitchen renovation and bathroom renovation options under our Toronto home renovations overview.
Typical range
$65–$150+ / sq ft
Driven by scope, finishes, and existing conditions.
Mid-range finish (1,000 sq ft)
$65K–$95K
A finished basement with a bathroom is a common baseline scope.
Legal suite scope
$120K–$200K+
Separate entrance, fire separation, egress, and a full kitchen.
What moves the budget most
- Moisture management: In older homes (common in Forest Hill, Rosedale, and Lawrence Park), waterproofing or drainage work may be required before finishing. We include a moisture assessment and offer a 10-year waterproofing warranty on qualifying work.
- Ceiling height: Low headroom can require careful HVAC coordination — and in some cases, underpinning to meet minimum clear height. Underpinning often adds $30K–$80K, depending on footprint and soil conditions.
- Permits & code: Structural, plumbing, and electrical work require permits. Legal secondary suites add life-safety requirements (fire separation and egress). We manage permits and coordinate inspections end-to-end.
Why Maserat
A Toronto basement renovation done right
We’re a family-run design-build firm with over 50 basement transformations completed. Fewer projects, higher standards. You get a dedicated team and a process built to eliminate surprises.
1
Transparent pricing
Fixed quotes with no hidden fees. Competitors give estimates that change; we give a fixed-price quote you can plan around, with milestone-based payments tied to actual progress. Basement quotes include waterproofing, structural work, finishing, and all permits — with a 10-year waterproofing warranty.
2
One project manager
A single point of contact from consultation to completion. Your dedicated PM is responsive, available, and keeps you updated through every phase of construction. Your PM coordinates moisture assessment, structural engineering, and finishing trades under one timeline.
3
On-time guarantee
We commit to the timeline and keep you updated every step of the way. Clear milestones, regular progress reports, and a 2-year workmanship warranty on every project. Most basement renovations are completed in 4–8 weeks, with a comprehensive 2-year workmanship warranty.
Prefer to talk? Call (416) 876-1052
Our process
From consultation to completion
Our proven step-by-step approach ensures your basement renovation is stress-free, efficient, and tailored to your needs. We guide you through each phase from free consultation to final walkthrough.
Week 0
Free Consultation
Thorough assessment of your basement space, structural considerations, and moisture issues. Custom 3D renderings and floor plans so you can visualize the finished space.
Weeks 1–2
Design & Fixed-Price Quote
Layout, materials, and a fixed-price quote. We handle all City of Toronto permit applications, zoning compliance, and pre-construction site protection.
Weeks 3–8
Construction
Waterproofing, structural work, framing, electrical, plumbing, insulation, drywall, flooring, and fixture installation. Clean site, minimal disruption to your daily life.
Week 8
Final Walkthrough
Meticulous quality checks, municipal inspections, professional cleaning, and a full walkthrough. Handover of warranties and maintenance guidelines.
Testimonials
What Toronto homeowners say
We’ve completed 50+ basement transformations across Toronto. Here’s what clients say about working with Maserat.
He truly listened and understood our project, in terms of what we needed, our budget, our timing and our taste. His suggestions and ideas were extremely helpful and eye-opening from the beginning. He was true to his initial promises with accurate estimates and delivered over and beyond.
From the initial design consultation to the final walkthrough, the attention to detail was impressive. Our basement renovation was completed on schedule and on budget, with no surprises. The space is now our favourite part of the home.
We were hesitant about renovating our old basement due to moisture concerns, but Maserat guided us through every step. The finished space added exactly what our growing family needed — a playroom, guest suite, and home office.
The legal suite conversion was handled professionally from start to finish. Maserat managed all the permits and inspections, and now we have rental income that covers a significant portion of our mortgage.
Our home theatre basement is incredible. The soundproofing, lighting, and built-in storage exceeded our expectations. The fixed pricing meant we could plan confidently with no cost surprises.
Maserat solved our basement moisture problem once and for all. The waterproofing system they installed came with a 10-year warranty, and the finished space feels dry, warm, and inviting. Professional and trustworthy.
Our expertise01 02 03
Specialized basement solutions
Toronto’s climate and older housing stock present unique challenges. We offer specialized solutions backed by 50+ completed basement projects and a 10-year waterproofing warranty.
Waterproofing solutions
Given Toronto’s climate, effective waterproofing is crucial for protecting your investment and ensuring a healthy living environment.
- Exterior waterproofing membranes and weeping tile
- Interior drainage systems and sump pumps
- Foundation crack repair (epoxy and polyurethane)
- Proper grading and downspout optimization
- 10-year warranty against water penetration
Legal secondary suites
Converting your basement into a legal secondary suite is an excellent way to generate rental income or create a multi-generational living space.
- Separate entrance and egress windows
- Fire-rated drywall and doors between units
- Soundproofing between units
- Zoning compliance and permit management
- ROI analysis for your investment
Ceiling height solutions
Lower ceiling heights can make a basement feel cramped. We offer innovative solutions to maximize your usable headroom.
- Underpinning for significant height gains
- Floor lowering and concrete repour
- Strategic HVAC and ductwork rerouting
- Open joist ceilings with modern finishes
- Recessed lighting for visual openness
Pricing
Basement renovation costs in Toronto
Costs vary based on size, layout, finishes, and whether a legal secondary suite is involved. Below is a clear, realistic overview to help you budget with confidence.
Standard Finish
$45K – $65K
4–6 weeks
- Typical range $45–65/sq ft
- Drywall, paint & layered lighting
- Moisture-resistant materials
- Standard flooring & trim
- Dedicated project manager
Most Popular
Complete Renovation
$70K – $100K
6–8 weeks
- Typical range $65–95/sq ft
- Added bathroom or wet bar scope
- Upgraded finishes throughout
- Waterproofing as specified in quote
- Permits & inspections coordinated
Premium Build with Suite
$100K – $150K+
8–12 weeks
- Typical range $95–150/sq ft
- Legal secondary suite path
- Separate entrance & egress where applicable
- Advanced waterproofing & fire separation
- Premium layouts & fixtures
Every home is unique. These are starting ranges to help you plan — your free consultation includes a detailed quote tailored to your specific project, scope, and finishes. We provide transparent cost breakdowns with no hidden fees.
AREAS WE SERVE
Basement renovations across Toronto
Basement transformations across Toronto's most established neighbourhoods — from secondary suites to home offices and entertainment spaces.
View all service areas →Forest Hill
Walk-out basement conversions & media rooms
View projectsRosedale
Heritage home lower-level transformations
View projectsLawrence Park
Family-sized basement finishes & rec rooms
View projectsLeaside
Basement apartments & modern lower-level finishes
View projectsThe Annex
Century home basement conversions & suites
View projectsYorkville
Lower-level storage & utility upgrades
View projectsCasa Loma
Estate-home lower levels & wine cellars
View projectsSummerhill
Compact basement finishes & home offices
View projectsBedford Park
Family basement finishes & secondary suites
View projectsMount Pleasant
Full basement finishes & income suites
View projectsMoore Park
Walk-out basement builds on ravine lots
View projectsMidtown
Urban basement finishes & home offices
View projectsRelated Services
FAQ
Frequently asked questions
Find answers to common questions about basement renovations in Toronto.
Have more questions? Browse our complete FAQ centre →
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What happens next
- We review your project details
- Anna calls to schedule a visit
- You receive a fixed-price quote
Anna MercerClient Journey Specialist