Crawl Space & Basement Moisture Experts in Spokane, WA

Damp, musty crawl spaces and wet basements cause mold, wood rot, and higher energy bills. Encapsulation, waterproofing, and vapor barriers from vetted local specialists — starting with a free inspection.

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How Encapsulation Protects Your Home

Step 1

Heavy-duty vapor barrier

A thick liner seals the crawl space floor and walls, blocking ground moisture at the source.

Step 2

Dehumidifier & sealed vents

Closing the vents and controlling humidity keeps the space dry all year — no more mold or musty air.

Result

Ground moisture stays out

A dry, sealed crawl space protects your framing, lowers heating bills, and improves indoor air.

Why Spokane Homes Have Crawl Space & Basement Problems

Spokane's older housing stock, snowmelt, and ground moisture push dampness up through crawl spaces and basement walls. Left unsealed, that moisture rots framing, feeds mold, and makes your whole house harder to heat. Encapsulation and waterproofing stop it at the source.

Our Services

Most requested

Crawl Space Encapsulation

Full vapor barrier, sealed vents, and dehumidification to lock out moisture for good.

Basement Waterproofing

Interior drainage, wall sealing, and sump systems to keep basements dry.

Vapor Barrier & Moisture Control

Heavy-duty liners that stop ground moisture from rising into your home.

Sump Pump Installation

Reliable pumps and battery backups to move water out before it pools.

Mold & Wood Rot Treatment

Address the mold and rot that moisture leaves behind, then seal it out.

Crawl Space Insulation

Insulate a sealed crawl space to cut drafts and lower heating bills.

Areas We Serve

Spokane and the surrounding communities: Spokane Valley, Liberty Lake, Mead, Cheney, plus Airway Heights, and all of Spokane County.

Why Homeowners Choose Us

Free, Honest Inspection

A real look under your home with photos and a clear plan — no scare tactics.

Licensed & Insured

Every specialist we match you with is fully insured and does permitted work.

Fixes the Root Cause

We stop moisture at the source so mold and rot don't come back.

See how much crawl space encapsulation costs in Spokane →

Signs You Have a Moisture Problem

Musty Smell

That damp, earthy odor upstairs usually starts in the crawl space or basement.

Cupping Floors

Hardwoods that cup or buckle are reacting to moisture rising from below.

High Humidity & Pests

Sticky indoor air, condensation, and bugs all point to an unsealed crawl space.

See all the warning signs →

Built for Spokane's Climate — and Its Radon

Crawl space work in the Inland Northwest is not one-size-fits-all, because the local conditions are specific. Winters here drop well below freezing, so an open, vented crawl space bleeds heat and puts pipes at risk. Spring snowmelt moves groundwater up through the soil, and homes in low areas or near Liberty Lake and the river sit over a high water table. And critically, Spokane County is an EPA Radon Zone 1 county — the highest-risk category — so a bare-dirt crawl space is a radon pathway as well as a moisture one. Sealing, insulating and, where needed, draining the crawl space addresses all of it at once: a drier, warmer, healthier home. It is exactly what the specialists we match you with are set up to do.

Our Work

From damp, dirt-floor crawl spaces to clean, sealed and dry — the kind of work we do around Spokane.

Dirt-floor crawl space before encapsulation
Before: damp dirt crawl space
Technician installing vapor barrier
Installing the vapor barrier
Sump pump installed in a sealed crawl space
Sump & drainage installed

Spokane Crawl Space & Basement Questions

How much does crawl space encapsulation cost in Spokane?

Most full encapsulation projects in the Spokane area run $4,000 to $12,000 depending on square footage, moisture level, and whether insulation, drainage or a dehumidifier is included. A basic vapor barrier starts around $1,500-$3,500. Every inspection and quote is free.

Does encapsulation help with radon in Spokane?

It can. Spokane County is an EPA Radon Zone 1 area — the highest-risk designation — and a bare-dirt crawl space is a direct radon pathway. Sealing the ground reduces it, and homes that test high pair encapsulation with a radon vent. Only a radon test tells you your level.

Why are crawl space problems so common in Spokane?

A combination of older vented housing stock, cold winters, spring snowmelt, and a high water table in low areas and near Liberty Lake and the river. Warm summer air also condenses in cool vented crawl spaces. Together these drive the moisture, mold and cold floors homeowners notice.

Will sealing my crawl space lower my heating bill?

Usually. An open, vented crawl space lets winter cold soak up into your floors and forces the furnace to work harder. A sealed, insulated crawl space keeps floors warmer, protects pipes from freezing, and typically reduces heating costs.

Are your specialists licensed and insured?

Yes. We only match you with vetted crawl space and basement specialists who are licensed and insured, so your home is protected during the work. The initial inspection is always free and no-obligation.

See more FAQs →

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