Basement Renovations in Whitby
Luxury basement finishing for Whitby homes — free 3D design, itemized fixed pricing, lifetime warranty, and a written timeline backed by our $200-per-day on-time guarantee.
Get a Free Quote →VIEW OUR PROJECTSBasement renovation in Whitby, street by street
Whitby runs from historic Brooklin and Port Whitby streets to newer Williamsburg and Taunton North communities — newer basements finish cleanly into theatres, gyms and family space, while mature homes benefit from moisture-first construction.
As one of Durham's most family-driven markets, Whitby basements become playrooms, in-law suites and income units. Whatever your starting point, we turn that lower level into finished, livable square footage — and real value added to your Whitby home.
What we build in Whitby basements
Basement finishing
Theatres, bars, gyms and family spaces — metal studs and moisture-resistant drywall as standard, finished to match the rest of your home.
EXPLORE BASEMENT FINISHING →
Home renovations
Kitchens, bathrooms and whole-home updates for Whitby families, built with the same crew and warranty as our basements.
EXPLORE HOME RENOVATIONS →
Structural & legal suites
Underpinning for ceiling height, waterproofing, and permitted separate entrances for legal Whitby second suites.
EXPLORE STRUCTURAL WORK →Tall basements in Williamsburg and Brooklin, older ones in Port Whitby
Whitby's north end was built for basements. Williamsburg, Taunton North and the newer phases of Brooklin went up from the late 1990s through the 2010s with poured-concrete foundations, ceilings over eight feet, larger windows and, in many homes, a bathroom rough-in already in the slab. That combination lets us skip the structural questions and go straight to design: theatre or open family room, bar size, whether the guest bedroom needs a full bath or a powder room.
Pringle Creek and the streets closer to the lake in Port Whitby are older, with 1960s and 1970s stock, lower ceilings and more moisture history. Nothing there worries us, but it changes the order of work. Drainage and waterproofing come first, then the finishes.
Permits go through the Town of Whitby building department, and a basement with a new bathroom or bedroom needs one. We handle the drawings and the application.
Our recent Whitby project on William Davidson Street finished 1,152 square feet for $90,000 to $100,000. That is the number to hold in your head for a full-width family basement with a bathroom, done to the standard the photos on this page show. From Richmond Hill, Whitby is about 45 minutes via the 407 and the 412, which puts Kam on site for the decisions that matter, not only the final walkthrough.
From our 2026 GTA Basement Cost Report — built from the signed contract values of our completed projects.
A 1,152 sq ft basement on William Davidson Street
- Completed 2022
- 1,152 sq ft
- About 11 weeks
- $90,000 to $100,000
A three-piece bathroom with a custom tiled shower, a bar with four custom cabinets and a ledgestone feature wall under LED crown lighting. Two windows replaced and a new large window added, the popcorn ceiling removed, 53 pot lights, seven doors, on a Dri-Core subfloor.
What a basement in Whitby costs, by scope
The same published rates and itemized add-ons we quote everywhere in the GTA. Permits, inspections, free 3D design and a lifetime warranty are included in every line.
| Scope | Typical cost |
|---|---|
| 1,000 sq ft finished at Essential ($55 per sq ft) | $55,000 |
| 1,000 sq ft finished at Signature ($70 per sq ft) | $70,000 |
| 1,000 sq ft finished at Luxury ($90 per sq ft) | $90,000 |
| The family basement: media wall, full bathroom, laundry, around 1,000 sq ft | $60,000–$85,000 |
| The entertainment build: theatre or media room, bar, gym, spa bathroom, 1,000–1,300 sq ft | $95,000–$130,000 |
| Three-piece bathroom with tiled shower | $18,000–$28,000 |
| Custom wet bar | +$15,000 |
| Home theatre setup | +$20,000 |
| Walkout entrance, permits included | $15,000–$25,000 |
| Full-perimeter underpinning for low ceilings | $60,000–$120,000 |
| Legal basement apartment, purpose-built | $75,000–$110,000+ |
We do not yet publish a separate Whitby median; Whitby projects are quoted against the GTA median of $103,000. Sources: 2026 GTA cost report · cost calculator · bathroom, walkout and underpinning cost guides.