
A durable polyethylene vapor barrier over your crawl space floor and foundation walls prevents ground moisture from damaging your Denver home. Serving Denver, Aurora, Lakewood, Arvada, Westminster, Thornton, Centennial, Boulder, Littleton, Broomfield, Castle Rock, Parker, Golden, Englewood, and the surrounding Denver metro area within 100 miles.
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Durable polyethylene barriers (6–20 mil) on floors and walls
Sealed seams and edges for continuous moisture protection
Prevents ground moisture from entering your crawl space
Reduces humidity, musty odors, and mold risk
Affordable alternative to full encapsulation
Can be upgraded to full encapsulation in the future
A proven, methodical approach refined over 20+ years of professional installation.
We assess your crawl space conditions — moisture levels, drainage, existing barriers, and structural condition — to determine the right vapor barrier approach.
The crawl space floor is cleared of debris, sharp objects, and standing water. Existing damaged vapor barriers are removed if present.
Polyethylene vapor barrier is laid over the crawl space floor and up foundation walls, with all seams overlapped and sealed with specialized tape and sealant.
We verify complete coverage, sealed seams, and proper attachment at all edges. The vapor barrier is checked for punctures or gaps before the project is complete.
Ground moisture is a constant threat to Denver crawl spaces. Even in Colorado's dry climate, moisture continuously evaporates from the soil beneath your home, rising into the crawl space and eventually into your living areas. This moisture causes elevated humidity, musty odors, mold growth, wood rot, and pest-attracting conditions that affect your home's health, comfort, and structural integrity. A crawl space vapor barrier is the most affordable and effective first step to controlling this moisture. Sky Insulation installs durable polyethylene vapor barriers (6–20 mil) over the crawl space floor and up the foundation walls, sealed at all seams and edges with specialized tape and sealant. This creates a continuous moisture shield between the soil and your home, dramatically reducing humidity levels in the crawl space. For Denver homeowners who want an effective moisture solution without the full cost of crawl space encapsulation, a vapor barrier installation delivers excellent value. It can be upgraded to full encapsulation in the future by adding insulation, vent sealing, and dehumidification. Sky Insulation helps you choose the right approach for your situation and budget.

A continuous vapor barrier stops ground moisture from evaporating into your crawl space, dramatically reducing humidity levels and musty odors.
Vapor barrier installation is the most cost-effective crawl space moisture solution — providing significant benefits at a fraction of the cost of full encapsulation.
Reducing crawl space moisture prevents mold growth and improves the air quality in your living spaces — up to 50% of your home's air comes from below.
A vapor barrier is the foundation of a future full encapsulation. You can add insulation, vent sealing, and dehumidification later to upgrade when your budget allows.






A crawl space vapor barrier is a durable polyethylene sheet installed over the crawl space floor (and sometimes walls) to prevent ground moisture from evaporating into the crawl space. It creates a physical barrier between the soil and your home.
We recommend a minimum of 6 mil for basic moisture protection, with 12–20 mil for more durable, long-lasting installations. Thicker barriers resist punctures and tears better, especially in crawl spaces that are accessed for maintenance.
A vapor barrier alone is effective for moderate moisture issues and is the most affordable option. Full encapsulation (vapor barrier + wall insulation + sealed vents + dehumidifier) is recommended for severe moisture problems or for maximum energy efficiency. We can help you decide based on your crawl space conditions.
Quality polyethylene vapor barriers last 10–20+ years depending on the thickness, crawl space conditions, and whether the barrier is exposed to physical damage. Thicker barriers (20 mil) offer the best longevity.
Serving Denver, Aurora, Lakewood, Arvada, Westminster, Thornton, Centennial, Boulder, Littleton, Broomfield, Castle Rock, Parker, Golden, Englewood, and the surrounding Denver metro area within 100 miles.
Based in Denver, CO, we provide professional insulation, fireproofing, and waterproofing services to homeowners and businesses within a 100-mile radius.
+ Surrounding communities within the Denver Metro Area