Basement Renovation North York

MARKHAM · UNIONVILLE · CORNELL · BERCZY · CATHEDRALTOWN

Basement Renovation North York

Finished basements and legal secondary suites across North York — design, permits, waterproofing, framing, bathrooms and full finishing, handled end to end by one team at Razco Renovation.

Get a Free Quote — (647) 561-3333
📝
Permits & Code Handled
💧
Waterproofing Done Right
🛡
Licensed & $2M Insured
✅
1-Year Workmanship Warranty

What We Do in Your North York Basement

🏠
Basement Finishing
Framing, insulation, drywall, flooring, pot lights and trim for a warm, modern living space.
🏷
Legal Basement Apartments
Income-generating second suites built to the Ontario Building Code — separate entrance, egress, fire separation, kitchen and bath.
🚿
Basement Bathrooms
Full three-piece basement bathrooms — proper drains, waterproofing and ventilation.
🍳
Basement Kitchens & Wet Bars
Kitchenettes and wet bars for suites and rec rooms — cabinetry, plumbing and appliances.
💧
Waterproofing & Moisture Control
Interior waterproofing, sump pumps, vapour barriers and insulation to keep the space dry.
📐
Egress Windows & Underpinning
Code-compliant egress windows, plus underpinning to gain legal ceiling height.

Our 6-Step Basement Process

1
Free Assessment & Quote
We check ceiling height, moisture and layout, confirm what North York allows, and give you a clear quote.
2
Design & Permits
Code-compliant drawings prepared and the building permit obtained before any work begins.
3
Waterproofing & Framing
We address moisture, then frame, insulate and vapour-barrier the space into a warm, dry shell.
4
Rough-In
Plumbing, electrical and HVAC roughed in for bathrooms, kitchens and lighting, then inspected.
5
Finishing
Drywall, flooring, trim, doors, pot lights and paint bring the basement to a clean, modern finish.
6
Walkthrough & Inspection
We pass final inspections, walk the space with you and hand over your warranty.

What Does a Basement Cost in North York?

Most finished basements in North York run $40,000–$100,000 (about $35–$75 per sq ft). A legal second suite costs more — around $90–$140 per sq ft — but can earn $1,500–$2,500+ per month in rent.

See the full 2026 basement cost breakdown →

Basement Renovation North York FAQ

How much does a basement renovation cost in North York?
Most basement renovations in North York cost $40,000 to $100,000 in 2026, about $35 to $75 per square foot, or $90 to $140 per square foot for a legal apartment.
Can you build a legal basement apartment in North York?
Yes — we build legal second suites to the Ontario Building Code: separate entrance, egress windows, fire separation, and a full kitchen and bath, and can help with North York second-suite registration.
Do I need a permit to finish a basement in North York?
Yes — finishing a basement, adding a bathroom or building an apartment all require a permit. Razco prepares the drawings and handles the permit and inspections.
How long does a basement renovation take?
A standard finished basement takes about 4 to 8 weeks; legal suites and underpinning take longer.
Do you handle waterproofing and moisture issues?
Yes — we waterproof, install vapour barriers and insulation, and can add a sump pump so your basement stays dry and healthy.

Start Your North York Basement — Free Quote

Finishing & legal suites across North York, Unionville, Cornell & the GTA. Itemized pricing, 1-year workmanship warranty.

(647) 561-3333

Basement Renovation North York — Local, Licensed & Insured

Razco Renovation has spent 10+ years renovating homes across North York, a dense mix of mid-century bungalows, established family homes and modern condos. From finished family basements to legal in-law and rental suites, we handle waterproofing, egress windows and permits — all managed in-house and backed by our 1-year workmanship warranty. We work throughout North York, including Willowdale, Don Mills, Bayview Village, Lawrence Manor and Lansing, and handle the local permit process for you.

Explore More in North York

All work is completed to the Ontario Building Code and local municipal permit requirements.