Finished basement in Renfrew — open concept design
23 basement renovation projects submitted this week in Renfrew

Basement Renovation
Renfrew

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

Licensed & Insured Contractors

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

100% Free Quote

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

Waterproofing Expertise

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

Code-Compliant Builds

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

Basement renovation services available in Renfrew

Basement Finishing

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

Basement Bathroom

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

Home Theatre & Media Room

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

Basement Waterproofing

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

Underpinning

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

Legal Basement Suite

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

Frequently asked questions — Basement renovation in Renfrew

How much does it cost to finish a basement in Renfrew?
A full basement finish in Renfrew typically costs $21328–$67864, depending on size, bathroom inclusion and finish level. A basic finish with no bathroom starts around $3393–$9694. Get 3–5 free quotes to compare.
How much does a legal basement suite cost in Renfrew?
A legal basement suite in Renfrew typically costs $9694–$33932, including permits, egress windows, kitchen, bathroom and separate entrance. Rental income of $1,500–$2,500+/month is common in larger Renfrew markets.
Do I need a permit to finish my basement in Renfrew?
Yes — basement finishing that includes electrical, plumbing or structural work requires permits in Renfrew. 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 Renfrew: 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 Renfrew?
A full basement finish in Renfrew 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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Basement renovation prices in Renfrew — 2026

Estimates based on size, scope and finish level

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Full Basement Finish

Framing · Drywall · Flooring · Lighting · Bathroom

$21328 – $67864
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🏡

Legal Basement Suite

Permits · Egress · Kitchen · Bath · Full finish

$9694 – $33932
💧

Waterproofing

Interior/exterior membrane · Sump pump · Drainage

$3393 – $13572

🛁 Basement bathroom addition

$1454 — $5816

☔ Interior waterproofing system

$3393 — $13572

🌡️ Basement heating installation

$1454 — $5816

💡 Egress window installation

$1454 — $5816

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

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