Skip to content
Calculation Machine

Crawl Space Encapsulation Cost Calculator

Vapour barrier, insulation and dehumidifier pricing.

Reviewed by James Whitfield · How we check our maths

Your values

0 to skip

ⓘ Live results

Results
Estimated total
$7,960.00
Vapour barrier
$1,320.00
Wall insulation
$640.00
Labour
$4,200.00
Equipment
$1,800.00
Cost per sq ft
$6.63

Quick answer

Crawl space encapsulation costs about $5–15 per square foot, so a typical 1,200 sq ft crawl runs $6,000–15,000 fully finished.

The formula

cost = area × (liner + insulation + labour) + equipment

Worked example

Worked example

Using the values the calculator loads with.

Inputs

  • Crawl space area1200 sq ft
  • Liner thickness20 mil
  • Wall insulation2 $/sq ft
  • Wall area320 sq ft
  • Dehumidifier1800 $
  • Sump pump0 $
  • Labour3.5 $/sq ft

Result

  • Estimated total$7,960.00
  • Vapour barrier$1,320.00
  • Wall insulation$640.00
  • Labour$4,200.00
  • Equipment$1,800.00
  • Cost per sq ft$6.63

How to use the Crawl Space Encapsulation Cost Calculator

  1. 1Measure the crawl space floor area.
  2. 2Pick the liner thickness — 20 mil is the common standard.
  3. 3Add insulation, a dehumidifier and a sump if the space gets wet.
Wall insulation($/sq ft)
0 to skip

Frequently asked questions

Is crawl space encapsulation worth it?

Yes in humid climates — it stops mould, cuts musty odours and typically trims 10–15% off heating and cooling bills.

Do I need a dehumidifier after encapsulation?

Almost always: a sealed crawl still needs conditioned or dehumidified air to hold below 60% relative humidity.

About this calculator