What the price covers
A new below-ground entrance: digging a stairwell, pouring concrete stairs, cutting the foundation for a door, and drainage.
Basic, mid-range and premium
The same range split by finish level, as the basement calculator does: the lower half, the middle and the upper half of the published range.
| Project | Basic | Mid-range | Premium |
|---|---|---|---|
| Separate entrance (walk-up) median of 5 companies | $18,000 – $24,000 | $21,000 – $27,000 | $24,000 – $30,000 |
What each company publishes
The 5 GTA companies behind this range, cheapest first, in their own words. Our range is the middle (median) of their lows and highs.
| Company | Their price | What their page says |
|---|---|---|
| Desire Basements (Toronto) | $15,000 – $25,000 | “Walkout basement entrance $15,000 to $25,000 All in: excavation, concrete, door, railings, permits.” |
| Maserat Developments (Toronto) | $15,000 – $30,000 | “Walkout stairs added to existing foundation (excavate, pour new stairs, waterproof): $15,000 – $30,000” |
| RenoEthics (Richmond Hill / GTA) | $18,000 – $35,000 | “Separate entrance (walk-out excavation) | $18,000–$35,000” |
| CNB Renovation (Toronto) | $22,000 – $45,000 | “Walk-up (stairwell) — concrete stairwell dug into the front or side yard with a door at the bottom. Common in older Toronto stock. Cost: $22,000–$45,000 due to excavation volume.” |
| Harmony Basements (Toronto) | $28,700 | “a separate entrance at $7,800 above grade or $28,700 as an excavated walk-down” |
Prices read on each company’s own page; newest read Oct 15, 2026. This is a budget range, not a written estimate or quote. Your exact price comes in a written estimate after a free in-home visit.
Our promise on every job
- Fixed price. Your written price won’t go up unless you sign a change.
- Finish date in writing. Late? We take $100 a day off your final payment.
- 10% to book. Then pay for each stage as it starts. Never more than one stage ahead.
- 5-year warranty. On our workmanship, in writing.
More basement prices
- Legal basement apartment$102.50 – $127.50 per sq ftMid-range
- Basement finishing$40 – $50 per sq ftMid-range
- Underpinning$45,500 – $72,000Extra, mid-range
- Basement bathroom$17,500 – $22,500Mid-range
- Egress (escape) window$3,700 – $5,500 per windowMid-range
- Your own basementAnswer a few questions for your range. No email needed.
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