Interior Unlock Your Lower Level

Basement Renovation

Your basement is one of the most valuable and underutilised spaces in your home. We transform raw, unfinished lower levels into extraordinary liveable spaces your entire family will love.

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Overview

Why Choose Arete for Renovation?

A professionally finished basement adds significant square footage and value to your home — often the highest return-on-investment renovation you can make. Whether you envision a sleek home theatre, a bright playroom, a productive home office, or an income-generating legal suite, Arete Renovation designs and builds it to code, on budget, and with extraordinary attention to detail.

Our basement specialists evaluate your existing structure, drainage, moisture conditions, and mechanical systems before a single panel goes up. This thorough pre-build assessment ensures your finished basement remains dry, comfortable, and durable for decades to come.

◆Framing, insulation, and drywall installation
◆Drop ceilings, tray ceilings, and exposed beam designs
◆Egress window installation and enlargement
◆Waterproofing systems and moisture management
◆Custom home theatres and entertainment rooms
◆Legal basement suites and in-law apartments
◆Home gyms, wellness rooms, and wine cellars
◆Wet bars and full recreational rooms
◆Bathroom rough-in and complete installation
◆Electrical, plumbing, and HVAC coordination

Year Warranty

Basement Build Process

Our Approach

Moisture-First Approach

Every basement renovation starts with a thorough moisture assessment. We address waterproofing before finishing — ensuring your investment is protected against the single greatest threat to below-grade spaces.

Code-Compliant Builds

We secure all required building permits and ensure every aspect of your basement meets or exceeds Ontario Building Code requirements. Critical for insurance coverage, refinancing, and resale value.

Maximised Natural Light

We integrate enlarged egress windows, glass-panel doors, and strategic lighting design to eliminate the basement feel and create spaces that feel genuinely bright, open, and welcoming.

Complete Turnkey Service

From demolition and framing through flooring, painting, and final touches — Arete manages every trade and every detail under one contract, one timeline, and one point of contact.

Legal Suite Expertise

We specialise in permit-approved, OBC-compliant legal basement suites that generate rental income and add significant, bankable market value to your property.

Structural Knowledge

Our team understands residential structural systems deeply. We work confidently around beams, posts, and mechanical systems to maximise every square foot of usable space.

Project Gallery

Recent Work

Finished Family Room

Home Theatre

Wet Bar Installation

Common Questions

Frequently Asked

Basement renovation costs in Toronto typically range from $40,000 to $100,000 or more depending on size, finish level, and whether a bathroom or kitchen is included. We provide a detailed, itemised quote after your free consultation — no guesswork.

Absolutely. We handle all plumbing rough-in, drain tie-ins, and full bathroom installation. We assess your existing drain line depth to determine the right approach — standard gravity drain or sewage ejector pump.

Yes — significantly. A quality finished basement in Toronto can increase your home's market value by $50,000 to $150,000 or more depending on the finish level and whether it qualifies as a legal suite.

We conduct a thorough moisture assessment as part of every consultation. Common signs include musty odours, visible staining on concrete, efflorescence (white mineral deposits), or visible cracks. We never finish over a moisture problem.