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Basement Renovation

Basement renovation & legal suite construction in Metro Vancouver — waterproofing, permits, fire separation, separate entrance. 2026: $50K–$200K typical, premium legal suites with full ensuite $250K+.

Top-rated Basement Renovation in Vancouver· 5.0★ from 76 Google reviews

Metro Vancouver basement renovations — from finishing an unfinished space to a fully legal secondary suite with separate entrance, full kitchen, and ensuite. We pull permits, handle fire-separation and egress requirements, coordinate the inspection schedule, and deliver a code-compliant, rentable space.

Every basement project includes a written scope, fixed-price contract, BC Building Code §9.36 (low-rise residential) permit package, fire-separation per §9.10, $5M CGL, WorkSafeBC, and our 3-year workmanship warranty.

Real Vancouver Basement Costs (2026)

Tier Scope Total Investment
Basic finishing (no kitchen / bath) Drywall, electrical, lighting, flooring, paint, baseboards, optional rec room $50,000 – $90,000
Finishing + 1 bathroom Above + 3-piece bathroom rough-in + finish $80,000 – $130,000
Legal secondary suite (1 bed) Full kitchen, 3-pc bath, separate entrance, fire separation, egress windows, separate panel $130,000 – $200,000
Legal suite (2 bed) + ensuite Above + 2 bedrooms with code-compliant egress + premium finishes + ensuite for primary $180,000 – $280,000
Premium suite + entertainment area Wet bar, theater room, gym, sauna, premium finishes throughout $200,000 – $350,000+

What's Included

1. Pre-construction

  • Existing-conditions assessment (moisture, ceiling height, wiring age)
  • BC §9.36 + §9.10 code review
  • Permit package (City of Vancouver / Surrey / Burnaby — varies by jurisdiction)
  • Structural assessment if low ceilings (raising the basement floor)
  • Soundproofing planning (especially for legal suites above bedrooms)

2. Critical Code Items (Included in every legal suite)

Item What it does
Fire separation between units 5/8" Type X drywall on ceiling + smoke-sealing penetrations
Interconnected smoke + CO alarms Hardwired throughout both units
Egress windows in bedrooms Min 0.35 sq m clear opening, 0.55m wide, sill ≤ 1m above floor
Separate entrance Direct from outside, no shared corridor with main unit
Separate panel + meter (sometimes) Permits separate billing
Sound transmission rating STC 50+ Floor/ceiling assembly between units
Ventilation per BC §9.32 Bathroom + kitchen exhaust direct to exterior
Heat source Independent thermostat OR shared with proper zoning

3. Waterproofing

Issue Solution Added cost
Existing damp or musty smell Interior dimple board + drainage to sump $4K–$12K
Active leak / efflorescence Interior + spray foam + dehumidifier system $6K–$18K
Major moisture / failed exterior membrane Exterior excavation + new waterproofing $25K–$60K
Slope grading toward house Re-grade + downspout extensions $1K–$3K

4. What Drives Price Up

  • Low ceiling (under 7 ft) → underpinning to lower floor: +$30K–$80K
  • Knob-and-tube rewire: +$10K–$25K
  • Asbestos in popcorn ceiling / pipe insulation: +$5K–$25K
  • Egress window cut in concrete: +$3K–$6K each
  • Separate panel + service for suite billing: +$4K–$8K
  • Underpinning for additional ceiling height: +$30K–$80K
  • Fire suppression (some jurisdictions require for legal suite): +$8K–$15K

5. Timeline

Scope Duration
Basic finishing 6–10 weeks
Finishing + bath 8–12 weeks
Legal 1-bed suite 12–18 weeks
Legal 2-bed + ensuite 16–22 weeks

6. Why Our Floor is $50K and Not $35K

Below $50K in 2026 Vancouver, you're either:

  • Skipping permits (puts your home insurance at risk and kills resale value of any rental income)
  • Cutting fire separation / egress (illegal as a suite, dangerous to occupants)
  • Using uninsured trades

We do permitted, code-legal basements. The $50K floor reflects 2026 BC trade rates + permit cost + minimum code-compliant materials.

7. Free In-Home Quote

Basement projects start with a 90-minute walkthrough — moisture check, ceiling-height measurement, electrical age assessment, scope discussion, and a written estimate.

What We Do

Basement FinishingWaterproofingBasement SuiteHome TheaterEgress WindowsInsulation

Why Us

Free consultation and quote
Licensed and fully insured (CGL + WCB)
$5M CGL insurance, active WCB coverage, up to 3 years warranty
20+ years experience
5-star Google rating
700+ projects completed

Our Projects

Explore our portfolio of exceptional renovation projects across the Lower Mainland.

Frequently Asked Questions

Do I need a permit to finish my basement in Vancouver?+

Yes, basement finishing requires building permits in Vancouver. We handle all permit applications and inspections as part of our service.

How do you handle basement moisture issues?+

We assess moisture levels and implement appropriate solutions including drainage improvements, vapor barriers, and proper insulation before finishing.

Can I add a bathroom to my basement?+

Yes, we can add bathrooms to basements. If below the sewer line, we install sewage ejector systems. All plumbing meets Vancouver building codes.

Get a Quote for Basement Renovation

Let us transform your vision into reality with 20 years of experience.