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WaterproofingIndex

Best Basement Walkout & Separate Entrance Contractors in Toronto and the GTA

Last updated: By Below-Grade Records Desk

14 basement walkout contractors listed across the Greater Toronto Area, compiled August 2026.

482 Google reviews · median 5★ · typical $18,000–$28,000 per project (CNB Renovation (Toronto & GTA)) · 64% of rated companies at 4.8★ or above · scheduling: excavation typically April to November while the ground is unfrozen

Ranking

Who ranks highest for basement walkout and separate entrance work in the GTA?

  2. SB Excavation2

    SB Excavation

    73/100 WaterproofingIndex Score

    1.4 km from Mimico centre

    MimicoBasement Walkouts & Entrances
    • Says it is insured
    • Says it carries WSIB coverage

    Its own website describes below-grade water work

    Request a quote
  3. JKRC Group Ltd3

    JKRC Group Ltd

    69/100 WaterproofingIndex Score

    0.9 km from Islington-City Centre West centre

    Islington-City Centre WestBasement Walkouts & Entrances
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  8. Northcon Corp8

    Northcon Corp

    60/100 WaterproofingIndex Score

    7.0 km from Burlington centre

    BurlingtonBasement Walkouts & Entrances

    Listed under Basement Walkouts & Entrances

    Request a quote
  9. Lion parging9

    Lion parging

    58/100 WaterproofingIndex Score

    1.6 km from Richmond Hill centre

    Richmond HillBasement Walkouts & Entrances

    Its own website describes below-grade water work

    Request a quote
  12. Concrete Master12

    Concrete Master

    53/100 WaterproofingIndex Score

    0.6 km from Mimico centre

    MimicoBasement Walkouts & Entrances
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote

14 companies are filed under basement walkout and separate entrance work in the Greater Toronto Area, holding a median 5★ across 482 Google reviews. 10 of them describe this work on their own website; for the other 4 we go on the category Google files them under and say no more than that. Budget $18,000–$28,000 per project for side entrance, complete, the GTA figure CNB Renovation (Toronto & GTA) publishes. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is. Nobody buys a place on it.

Prices

What does basement walkout and separate entrance work cost in the GTA?

CNB Renovation (Toronto & GTA) puts side entrance, complete at $18,000–$28,000 per project. CNB Renovation (Toronto & GTA) prices walk-up stairwell entrance, complete at $22,000–$45,000 per project. Ontario charges 13% HST on top, and GTA contractors quote before tax. 8 line items are broken out below, each credited to the source that published it.

GTA basement walkouts & entrances prices as published, August 2026. Every row names its source.
ItemTypical rangeUnitSource
Side entrance, complete (36" door cut through the foundation wall with exterior stairs)$18,000–$28,000per projectCNB Renovation (Toronto & GTA)
Walk-up stairwell entrance, complete (concrete stairwell excavated in the front or side yard, door at the bottom)$22,000–$45,000per projectCNB Renovation (Toronto & GTA)
Walkout basement, complete (rear yard grade already slopes away, door at grade with no stairs)$12,000–$22,000per projectCNB Renovation (Toronto & GTA)
Separate basement entrance in Toronto, all in (second opinion on the same scope)$15,000–$35,000per projectMS Builders (Toronto & GTA)
Excavation for the walkout and backfill$5,000–$5,000line itemRock Basements (Toronto)
Cutting the door opening in the existing foundation wall$1,000–$1,000line itemRock Basements (Toronto)
Exterior waterproofing of the new opening (membrane plus weeping tile, 8 linear ft)$4,200–$4,200line itemCNB Renovation (Toronto & GTA)
Drainage installation with materials$2,000–$2,000line itemRock Basements (Toronto)

Open the full basement walkouts & entrances cost guide

Coverage

Which part of the GTA is the job in?

Pick the city or neighbourhood to narrow the list to companies working there. 1 areas have enough listed basement walkout contractors for their own ranked page, each built from that area's own listings alone.

Ranking

How is this ranking built?

Position starts with an adjusted Google rating, which weighs how many people reviewed a company as well as what they scored it, so a 5.0 resting on three reviews does not sit above a 4.8 resting on three hundred. Added to it: what each company states on its own website, read off the page and stored with the sentence it came from, and how complete and reachable its record is. 64% of the rated basement walkout contractors here reach 4.8★, so the gaps between neighbouring positions are narrow and worth reading. Positions move as new reviews land, and no company is told about it in advance. Read our full methodology.

Frequently asked questions

What does basement walkout and separate entrance work cost in Toronto and the GTA?

CNB Renovation (Toronto & GTA) publishes $18,000–$28,000 per project for side entrance, complete, and CNB Renovation (Toronto & GTA) publishes $22,000–$45,000 per project for walk-up stairwell entrance, complete. Those are pre-tax figures, so add 13% HST. The basement walkouts & entrances cost guide on WaterproofingIndex sets out every line item beside the source that published it.

How do I pick a basement walkout contractor in the GTA?

Three written quotes, each naming the same wall and the same scope, is the only comparison that means anything below grade: one firm can price an interior drain while another prices an excavation, and the totals will not be comparable. The shortlist above is every basement walkout contractor on record here, 14 of them, sitting at a median 5★ on a median of 28 Google reviews apiece. Ask each one for proof of insurance and for two addresses within a few streets where it did the same job.

When can basement walkout and separate entrance work be scheduled in Toronto?

Excavation typically April to November while the ground is unfrozen. Frozen ground is what fixes the calendar: anything needing an open trench waits for the thaw, while work done from inside the basement carries on all winter. Ask each quote which parts of its scope need the ground open, because that single answer decides your start date.

Do these jobs need a permit, and does the quote include HST?

Ontario charges 13% HST on plumbing and waterproofing work, and GTA contractors publish their ranges before tax, so add it before comparing. Permits follow the scope, not the price. The City of Toronto requires a building permit and an inspection for a backwater valve, and charges an underpinning permit fee for lowering a basement or cutting a new below-grade entrance. Where a permit applies, the basement walkouts & entrances cost guide prices it as its own line with the City's own figure.

Do I need a permit for a basement walkout or separate entrance in the GTA?

Yes. Cutting an opening through a foundation wall is structural, so a building permit and engineered drawings are the normal path, and the stairwell brings excavation, grading and drainage that get reviewed alongside it. Zoning is a separate question from the permit and it is the one that catches people out, particularly where the plan is a second unit, along with lot lines, easements and conservation authority rules. Ask your municipality's building department before the design is finalised, and put responsibility for the permit in the contract in writing rather than leaving it as a conversation.

Can a company pay WaterproofingIndex for a higher position?

No, and there is nothing to buy. The order comes from a published score out of 100: an adjusted Google rating, what a company states on its own website, and how complete its record is. With 64% of rated basement walkout contractors at 4.8★ or better, positions here separate on narrow margins. The methodology page sets out the formula.

Questions to ask your contractor

  • Who pulls the building permit, and is the engineered drawing inside your price?
  • How is the opening supported once the wall is cut?
  • How is the stairwell drained, and where does that water go? Sourced project pricing
  • Is the new opening waterproofed and flashed, and with what?
  • Have you checked zoning and the lot lines for this, or is that on us?

Coverage

Where to go next

Below-grade problems rarely stay in one category. These are the other Greater Toronto Area rankings and guides on WaterproofingIndex.