Crawl Space Encapsulation Cost Calculator
Vapour barrier, insulation and dehumidifier pricing.
Enter your values
0 to skip
Results update instantly as you type — no submit needed.
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 $6,000–15,000 fully finished.
cost = area × (liner + insulation + labour) + equipment
At a glance
| What it does | Vapour barrier, insulation and dehumidifier pricing. |
|---|---|
| Category | Home & DIY |
| Inputs needed | Crawl space area, Liner thickness, Wall insulation, Wall area, Dehumidifier, Sump pump, Labour |
| Main output | Estimated total |
| Formula | cost = area × (liner + insulation + labour) + equipment |
| Cost | Free — no sign-up, no download |
How to use the Crawl Space Encapsulation Cost Calculator
- 1Measure the crawl space floor area.
- 2Pick the liner thickness — 20 mil is the common standard.
- 3Add insulation, a dehumidifier and a sump if the space gets wet.
Inputs explained
- Crawl space area(sq ft)
- Enter the crawl space area you are working with.
- Liner thickness
- Choose one of: 12 mil, 20 mil, Reinforced 20 mil+.
- Wall insulation($/sq ft)
- 0 to skip
- Wall area(sq ft)
- Enter the wall area you are working with.
- Dehumidifier($)
- Enter the dehumidifier you are working with.
- Sump pump($)
- Enter the sump pump you are working with.
- Labour($/sq ft)
- Enter the labour you are working with.
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
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
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.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.