Crawl Space & Structural Repair Services

Protect what supports your home.

Sound Home Preservation helps homeowners across Greater Seattle and North Puget Sound solve crawl-space moisture, drainage, insulation, and structural wood problems with a clear inspection-first process.

Moisture Control

Crawl Space Encapsulation

Create a cleaner, drier space with a reinforced liner, sealed seams, and humidity control designed around your home.

Crawl Space Waterproofing

Find the path of recurring water and manage it with the right combination of drainage, sump equipment, sealing, and moisture control.

Crawl Space Drainage Systems

Capture water at vulnerable edges and low points, then direct it to a dependable discharge point.

Crawl Space Sump Pump Systems

Install a serviceable basin, correctly sized pump, check valve, and discharge route as part of a complete water-management plan.

Crawl Space Dehumidifier Installation

Control airborne humidity after bulk water and ground vapor have been addressed.

Crawl Space Insulation & Air Sealing

Improve comfort with an insulation approach that works with the crawl space's moisture strategy.

Structural Wood Repair

Structural Wood Repair

Repair damaged framing only after the moisture, pest, or loading issue that caused it has been identified.

Floor Joist Repair

Restore support where joists are cracked, notched, rotted, undersized, or pulling away from their bearings.

Main Beam & Girder Repair

Address sagging, rot, splits, and inadequate bearing in the primary members that carry the floor system.

Rim Joist & Sill Plate Repair

Repair decay and damage at the perimeter where the floor framing meets the foundation.

Crawl Space Support Posts

Replace or improve leaning, corroded, undersized, or poorly supported posts with a properly detailed support plan.

Wood Rot Repair

Remove compromised material, restore structural capacity, and correct the conditions that allowed decay to continue.

Start with a clear diagnosis

Your inspection documents current conditions, likely causes, access constraints, and the repair sequence. You receive a written scope explaining what your home needs—and what it does not.

Final repair limits, equipment, code requirements, and supporting trades are confirmed in the written proposal.