Basement renovation in Grimsby, Ontario
49 basement renovation projects submitted this week in Grimsby

Basement Renovation
Grimsby

An damp basement in Grimsby is lost monthly income. Our renovation partners plan and execute basements that generate rental income. No-cost estimate within one business day.

$22000
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Basement renovation services available in Grimsby

Basement Finishing

Full basement finishing in Grimsby — framing, insulation, drywall, flooring, lighting and trim. Turn unused space into living space.

Home Theatre & Media Room

Custom home theatre and media room design and installation. Wiring, acoustics and custom millwork in Grimsby.

Legal Basement Suite

Complete legal basement suite construction in Grimsby. Permits, egress, kitchen, bathroom, separate entrance — income-ready.

Basement Bathroom

New bathroom addition in your basement. Full plumbing rough-in, tile, fixtures and ventilation.

Underpinning

Basement underpinning to increase ceiling height in Grimsby. Structural engineering and permit included.

Basement Waterproofing

Interior and exterior waterproofing systems. Sump pumps, drainage membranes, crack injection in Grimsby.

Why choose Basement Quotes Canada for your basement renovation in Grimsby?

Licensed & Insured Contractors

Every renovation partner is fully licensed, carries liability insurance, and has verified references in Grimsby.

100% Free Quote

No fees, no obligation. Compare up to 5 basement renovation quotes in Grimsby — completely free.

Waterproofing Expertise

Proper waterproofing is critical before finishing a basement. Our contractors in Grimsby assess and correct moisture issues first.

Code-Compliant Builds

All basement renovations — including legal suites — are built to code with proper permits in Grimsby.

Basement renovation prices in Grimsby — 2026

Estimates based on size, scope and finish level

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Full Basement Finish

Framing · Drywall · Flooring · Lighting · Bathroom

$23998 – $76795
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🏡

Legal Basement Suite

Permits · Egress · Kitchen · Bath · Full finish

$11519 – $38397
💧

Waterproofing

Interior/exterior membrane · Sump pump · Drainage

$3839 – $15359

🛁 Basement bathroom addition

$1727 — $6719

☔ Interior waterproofing system

$3839 — $15359

🌡️ Basement heating installation

$1727 — $6719

💡 Egress window installation

$1727 — $6719

Estimated prices for Grimsby. Get accurate, free quotes from our verified contractors.

Frequently asked questions — Basement renovation in Grimsby

How much does it cost to finish a basement in Grimsby?
A full basement finish in Grimsby typically costs $23998–$76795, depending on size, bathroom inclusion and finish level. A basic finish with no bathroom starts around $3839–$11519. Get 3–5 free quotes to compare.
How much does a legal basement suite cost in Grimsby?
A legal basement suite in Grimsby typically costs $11519–$38397, including permits, egress windows, kitchen, bathroom and separate entrance. Rental income of $1,500–$2,500+/month is common in larger Grimsby markets.
Do I need a permit to finish my basement in Grimsby?
Yes — basement finishing that includes electrical, plumbing or structural work requires permits in Grimsby. Legal suites require additional permits and inspections. Your contractor handles the permitting process.
How do I know if my basement has a moisture problem?
Signs of basement moisture in Grimsby: water stains, efflorescence (white powder on walls), musty odour, peeling paint, or visible mold. Our contractors assess moisture before any finishing work to prevent future damage.
How long does a basement renovation take in Grimsby?
A full basement finish in Grimsby takes 4–8 weeks. A legal suite with plumbing and permitting takes 8–14 weeks. Underpinning adds 2–4 weeks. Your contractor will provide a detailed schedule.

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