PriceBee
Greater Toronto Area · Ontario

Basement Waterproofing cost in King, ON

King homeowners typically pay $4,100 – $16,300 for basement waterproofing. Local labor and materials price 36% above the national average.

King average

$8,850

Typical low

$4,100

Typical high

$16,300

Per linear foot

$54 – $340

Sample ZIP

L7B

What drives King pricing

Local labor

Skilled trades across King are unionised or association-backed, and GTA labour rates run well above the North American average — expect quotes in Canadian dollars roughly 36% higher than the US benchmark once exchange and local wages are factored in. Winter shuts down much exterior work, so the spring-to-fall window is the busiest and priciest.

Permits & code

King issues building permits through its municipal building department under the Ontario Building Code. Electrical work needs an ESA (Electrical Safety Authority) notification and inspection, gas work must be done by a TSSA-certified installer, and HVAC changes should be sized by an HRAI-trained contractor. New-home and major-renovation work may fall under Tarion warranty coverage, and lots near a river or ravine can require Conservation Authority approval before the city will issue a permit.

Climate & conditions

King has a cold continental climate with freeze-thaw cycles, heavy snow load and humid summers. Expect frost-depth footings, ice-and-water shielding on roofs, insulation upgrades to meet Ontario energy requirements, and exterior work scheduled between April and November.

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80 linear feet

Estimated project cost

$544 $1,600

Most homeowners pay around $1,072

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Cost by material in King

Installed King pricing per linear foot.

OptionInstalled cost
Interior sealant$7 – $20
Interior drain tile + sump$54 – $135
Exterior membrane$135 – $340
Crawlspace encapsulation$27 – $82
Wall reinforcement$110 – $270

Where the money goes in King

A typical $8,850 King project, broken down by line item.

  • Labor and excavation50% · $4,425
  • Drainage materials22% · $1,947
  • Sump pump and equipment16% · $1,416
  • Concrete restoration and disposal12% · $1,062

Common add-ons

Extras that show up on King quotes but rarely in the headline price.

Sump pump

$815 – $2,700

Battery backup

$680 – $2,050

Dehumidifier

$1,650 – $4,100

Mold remediation

$2,050 – $8,150

Vapor barrier

Per square foot

$3 – $8

Egress window

$3,400 – $8,150

Ways to save in King

  • Do the cheap exterior fixes first — gutters, downspout extensions and grading solve many wet basements for under $1,000.
  • Choose interior drain tile over exterior excavation unless the wall itself is failing.
  • Get bids from waterproofing specialists and a general contractor; approaches and prices differ enormously.
  • Ask about a transferable lifetime warranty — it holds value at resale.
  • Install the sump and drainage before finishing the basement, never after.

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