Crawl Space Encapsulation
Seal and Protect Your Home
From the Ground Up
An unsealed crawl space affects your whole home: up to 50% of the air you breathe upstairs rises from below, carrying moisture, allergens, and radon with it. We install durable vapor barriers, fix moisture problems, and integrate encapsulation with your home's energy efficiency and air quality goals, quoted free for your exact space.
Why It Matters
The most overlooked space in the house does the most damage
Without proper sealing, crawl spaces trap moisture, foster mold growth, and create an entry point for radon and pests. Because so much of your indoor air originates down there, these problems spread through the entire house. Encapsulation creates a sealed, controlled environment that stops them at the source.
Moisture protection
Keep humidity and mold at bay before they reach the living space.
Healthier air
Cleaner indoor air with fewer allergens and pollutants circulating upstairs.
Lower radon risk
Sealing a major radon entry point, with full mitigation-system integration available.
Energy savings
A thermal barrier that lowers bills through improved insulation and sealing.
Long-term structural results
Durable materials that protect the foundation from wood rot and damage.
How It Works
What our encapsulation process includes
Durable Vapor Barriers
Heavy-duty liners installed across floors and walls to seal off the crawl space completely.
Custom Sealing & Insulation
Vents, gaps, and cracks closed, with spray foam insulation where it improves performance.
Moisture & Drainage Solutions
Standing water and humidity addressed before sealing, with drainage, sump, or dehumidification as needed.
Radon & Air Quality Integration
Encapsulation designed to complement radon mitigation systems and whole-home air quality.
Benefits
An investment that pays four ways
Energy efficiency & comfort
Fewer drafts, warmer floors, and heating and cooling systems that no longer fight the ground under your house.
Healthier indoor air
Moisture, mold, and soil gases blocked out means allergens, humidity, and radon stay in check.
Structural protection
The foundation and framing stay dry, avoiding the slow, costly damage moisture causes.
Stronger resale value
A sealed crawl space is a documented selling point for increasingly radon-aware and efficiency-aware buyers.
Where We Do This Work
Crawl space encapsulation across the Front Range
Vapor barriers, sealed vents, and conditioned crawl spaces for the Front Range’s wettest basements and lowest lots.
Whole-Home Approach
Encapsulation works best as part of the whole system
Crawl space work pairs naturally with insulation, radon mitigation, and an energy audit that measures the payoff.
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Frequently Asked Questions
What is crawl space encapsulation?
Encapsulation seals your crawl space with heavy-duty vapor barriers across floors and walls, closes vents, gaps, and cracks, and addresses moisture before sealing. The result is a controlled environment that keeps moisture, drafts, and soil gases out of your living space.
How much does crawl space encapsulation cost?
It depends on the size of the space, vapor barrier quality, insulation, and any moisture control equipment needed, so every project gets a free upfront quote. Rebates through Xcel Energy and Colorado programs can offset part of the work, and we confirm what applies.
Does crawl space encapsulation reduce radon?
It can meaningfully help. Sealing the crawl space closes one of radon’s main entry paths, and encapsulation integrates directly with a radon mitigation system for the strongest result. In Colorado’s uranium-rich soils that combination matters.
Why does my crawl space affect the rest of the house?
Up to 50% of the air in your home rises from the crawl space. Whatever is down there, moisture, mold spores, radon, pest debris, ends up in the air your family breathes upstairs.
Will encapsulation lower my energy bills?
Yes, in most homes. The thermal barrier beneath your home reduces drafts and keeps conditioned air from escaping, so your heating and cooling systems work less for the same comfort.
Can encapsulation stop cold floors in winter?
That is one of its most noticeable effects. Sealing and insulating the crawl space removes the cold air layer under your floorboards that makes them chilly all winter.
What about standing water or high humidity down there?
We address moisture and drainage first, before any sealing. Depending on conditions that can include drainage solutions, sump pumps, or dehumidifiers, then the vapor barrier goes in.
Does encapsulation protect my foundation?
Yes. Persistent crawl space moisture leads to wood rot and structural damage over time. Encapsulation safeguards the structure and helps you avoid much more expensive repairs later.
Does a sealed crawl space help resale value?
Buyers are increasingly aware of radon, moisture, and efficiency issues. A professionally encapsulated crawl space is a real selling point that sets a home apart in a competitive market.
Where do you offer crawl space encapsulation?
Across the Colorado and Wyoming Front Range, including Fort Collins, Wellington, Boulder, and Denver, where we also maintain a dedicated Denver crawl space encapsulation service.
Get Started Today
Take the first step toward a safer, healthier home
If your crawl space is damp, drafty, or unsealed, now is the time to act. PowerHouse provides professional crawl space encapsulation that protects your home from moisture, radon, and poor air quality.
970-594-8280