Spot On Pest Control (618) 417-7050

Crawl space encapsulation

Southern Illinois homes deal with humidity, seasonal rain and temperature swings that create moisture problems underneath. Over time that moisture feeds mold, wood rot, higher utility bills and pests. We seal the crawl space with a durable vapor barrier to protect your home from the ground up.

or call (618) 417-7050

A crawl space sealed with a white vapor barrier.
A sealed crawl space.

What it is

Crawl space encapsulation seals your crawl space to create a clean, dry environment beneath your home. It typically includes:

  • Installing a heavy-duty vapor barrier.
  • Sealing foundation vents.
  • Closing gaps where moisture and pests get in.
  • Controlling humidity levels.
  • Helping prevent mold growth and wood rot.

Unlike a basic plastic liner, professional encapsulation creates a long-term moisture control system that protects the whole home. We also offer vapor barrier installation, moisture control, mold treatment and spray attic insulation.

A bare dirt crawl space under a home, lit by a flashlight.
A bare dirt crawl space.
An encapsulated crawl space, with the vapor barrier running to the far wall.
An encapsulated crawl space.

Signs you need it

  • Musty odors inside the home.
  • Excess humidity, or standing water after heavy rains.
  • Mold and mildew growth.
  • Damaged insulation or cold floors.
  • Rodent or termite activity below the floor.

What to expect

  1. Tell us what you are seeing

    Talk to our assistant, call, or send the form. Say what you have found and where.

  2. A free crawl space inspection

    Every crawl space is different, so the most accurate estimate comes from an on-site inspection: moisture levels, mold, pest activity, access, repairs and drainage.

  3. Your plan and quote

    We build a treatment plan for your property and give you a free quote before any work starts.

  4. Encapsulation

    Quality materials and proven installation methods, with any repairs done first so the system performs properly.

What encapsulation does

A large share of the air inside your home can come up from the crawl space. When the space below is sealed and dry, the whole house benefits.

  • It creates a cleaner, drier space under your home.
  • It improves indoor air quality.
  • It improves energy efficiency and comfort through the year.
  • It limits the moisture that draws termites, rodents and spiders.
  • It protects the value of your home.

Spraying attic insulation boosts energy efficiency, lowers costs and helps prevent mold growth, while treating common entry points and insulation areas.

Reviews that mention it

Mike H.

★★★★★

Highly recommend SpotOn. They encapsulated my crawlspace and remediated mold and termite damage. They also treated the perimeter of my house with termite prevention. Great staff and overall experience! Definitely recommend them for anyone needing pest or crawlspace issues.

Nicolaas B.

★★★★★

The guys are priced reasonable. Not like another service provider I tried. I got full encapsulation of my crawl space from them and fungus treatment. Their quality of work is excellent, I crawled in under the house to see it myself. I can attest to their work. My crawl space has never looked this good. Their service is friendly and timely. They deserve to get 5/5 stars. I worked with Noah. He is a great guy, he comes across very well and communicates well and reponds well to inquiries about the job. They did fungus treatment for me and then a complete 20mil vapor barrier encapsulation. Trust worthy, quality, timely and service delivery. Wonderful. You can not say this of many these days. But you can say so of Spot On. You guys were spot on guys. Well done. Thanks. I will certainly use them again and recommend them as your first choice.-Nic

Janette C.

★★★★★

They cleaned out old insulation that had fallen down under the house. Found fungus and mold they are treating and termite damage I thought was taken care of by another service. Thankful I had them do an inspection. I plan to have the plastic barrier installed to keep moisture at bay later. Very nice and did great job. Update. They did the plastic barrier and even glued back pipe in 2 places they found leaking. Repaired termite damaged board. Excellent work.

Questions

Is crawl space encapsulation worth it?

For many homeowners, yes. Encapsulation gives long-term benefits, including moisture control, better energy efficiency and less pest activity.

How long does crawl space encapsulation last?

A high-quality vapor barrier, professionally installed, can protect your home for many years when it is properly maintained.

Can crawl space encapsulation help with pests?

Yes. Encapsulation reduces moisture and limits the conditions that attract termites, rodents, spiders and other pests.

Does crawl space encapsulation improve indoor air quality?

Air from the crawl space can circulate through the home, so reducing moisture and contaminants below the house can help improve the air you breathe.

How do I know if I need crawl space encapsulation?

Signs include musty odors, moisture problems, pest activity, mold growth, cold floors and high humidity.

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