First Class Remodeling Division

Transform Your Basement Into Premium Living Space

Specializing in custom basement finishing, legal secondary suites, luxury spa bathrooms, and home theaters across the GTA. Built to code, on time, and on budget.

100% Licensed & Insured
Legal Suite Permit Handling

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Custom basement design and framing

Basement Design

Custom layouts tailored to your lower level.

Legal basement suite construction

Legal Suites

Code-compliant secondary dwelling units.

Finishing
basements to the highest standard.

From quality framing and waterproofing to custom finishes, we design and build lower levels that add real living space and lasting value to your home.

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Welcome

About Company

Committed to superior basement craftsmanship.

Custom Built Basements is a specialized division of First Class Remodeling, delivering premium lower-level living spaces across the Greater Toronto Area.

From legal secondary suites to home theaters and spa bathrooms, we handle design, framing, waterproofing, and finishing under one roof, on time and on budget.

About

Our Value

Built on craftsmanship, transparency, and a commitment to doing it right the first time.

Signature

First Class Remodeling Team

Basement Design & Build Specialists

10
+

Skilled Tradespeople

100
+

Satisfied Clients

500
+

Projects Completed

We have 20 years experience in residential basement renovation

Legal Suites
85%
Basement Finishing
78%
Home Theaters
65%
Waterproofing
78%
Wet Bars
95%

Our Mission

Our Services
what we build

From legal secondary suites to luxury media rooms, we design and build basement spaces that are functional, beautiful, and built to last.

Custom Built Basements Mission

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Mission

Our Services

Specialized basement remodeling services, delivered by licensed and insured trades with transparent pricing.

1
Legal basement suite construction

Legal Basement
Suites

Fully compliant second dwelling units with separate entrances, kitchens, and egress windows, engineered for rental income.

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2
Full basement finishing and renovation

Full Basement
Finishing

Complete lower-level transformations, from framing and insulation to drywall, flooring, and custom trim.

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3
Basement home theater build

Basement Home
Theaters

Immersive media rooms with acoustic treatment, tiered seating, and integrated lighting.

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4
Basement bathroom and spa suite

Bathrooms &
Spa Suites

Luxury basement bathrooms and spa suites with heated floors, custom tile, and premium fixtures.

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Services

Let's work together

(647) 424-2491

Greater Toronto Area, Ontario, Canada

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Projects

Client Testimonials

Excellent
Based on 15 Google Reviews
Clients
Color Skin