Spray-On Foam & Coatings provides seawall repair services in Battle Ground, WA. We focus on soil loss behind and under the wall, which is one of the most common causes of seawall instability. For voids, settling and early cracking, polyurethane injection and concrete lifting can often stabilize a wall without tearing it out. If a wall has rotated badly or its panels have broken through, repair may not be enough, and we'll tell you that up front.
Every wall weathers over time. What matters is whether the soil behind it still supports it. These signs point to active failure, not just age:
Surface stains and hairline cracks with no soil movement are usually cosmetic. If that's all you see, watching the wall through the next wet season may be the cheaper choice for now.
The right fix depends on what's failing: the soil, the concrete or the structure itself. We've been in business since 1973, and as a seawall repair company we match the method to the cause rather than selling one answer for every wall.
Most seawall repairs we recommend start below the surface. We drill small holes behind or along the wall and inject polyurethane foam. The foam expands into voids, binds loose soil and hardens into a water-resistant mass. That restores the support the wall depends on, with little disturbance to your lawn, dock or landscaping. This work falls under our soil stabilization services.
When the soil under a cap or the walkway beside the wall sinks, the concrete drops with it. Our concrete lifting service uses the same injection approach to raise settled slabs back toward level and fill the gap beneath them. This often costs far less than removing and repouring the concrete.
Cracks matter because they let water carry soil out from behind the wall. Cracked seawall repair works best when we seal the openings and also stabilize the soil behind them. On suitable concrete surfaces, a polyurea coating can add a protective layer. If your wall isn't a good candidate for coating, we'll say so.
Injection isn't a cure for every wall. A wall that has rotated well out of line, has broken panels or has a failed footing may need an engineered rebuild. If we see that during the inspection, we'll explain why and won't push a repair that won't last.
Battle Ground is a wet place for most of the year. NOAA's 1991 to 2020 normals for the Battle Ground station, summarized by Extreme Weather Watch, show about 52 inches of precipitation a year. December, November and January each average more than 7 inches, while July averages less than an inch. Those long, soaking months keep the soil behind a wall saturated, so water has more chances to push through cracks and joints and carry soil with it. The drier late-summer stretch is usually the easiest time to spot voids and plan repair work.
Rivers add their own pressure. The Lower Columbia Estuary Partnership reports that channelizing the East Fork Lewis River has worsened bank erosion and threatened homes. Some owners along the river say they have lost dozens of feet of property, and the river broke through a levee during the 1995 to 1996 floods. Fast, confined flows during high water can scour soil from the base of waterfront walls. That's why catching voids early matters along rivers, lakes and ponds in the area.
Waterfront work in Washington comes with rules, and a good repair starts with a clear plan. Here's what to expect before and during the job.
The Washington Department of Fish and Wildlife requires a Hydraulic Project Approval for hydraulic projects in or near state waters, including most fresh waters. Local shoreline rules may also apply. We'll talk through what your project likely needs before we schedule it, but the final permit decisions belong to the agencies.
We don't publish flat prices. Reliable local cost data for this work isn't available, and every wall is different. These factors move the price most:
| Factor | Why It Matters |
|---|---|
| Wall length | More wall means more injection points and material. |
| Void size and depth | Large or deep voids take more foam. |
| Wall condition | Leaning or broken sections may need more than injection. |
| Access | Tight yards or water-only access slow the work. |
| Permits | Agency requirements can add time and cost. |
| Added work | Cap lifting, crack sealing or coating adds to the scope. |
Repairing seawalls early usually keeps the job smaller, because voids tend to grow with each storm cycle.
If you're seeing soft ground, gaps or a dropping cap along your wall, the best next step is an inspection before the next wet season. Call Spray-On Foam & Coatings at (360) 667-1993 or email [email protected] for a free quote. We'll tell you what's causing the problem and which fix makes sense.
If the wall is still mostly in line and the problem is soil loss, voids or settling, repair is often enough. Severe leaning, broken panels or a failed footing usually point to replacement.
It starts as a liquid and expands within seconds to minutes. Total job time depends on wall length and how much soil has washed out.
Not reliably. Injection stabilizes the soil and fills voids, which can stop further movement. A wall that has already rotated badly may need structural work.
Often, yes. Work in or near the water may need a state Hydraulic Project Approval, and local shoreline rules can apply. We'll help you sort out what applies before work begins.
In many cases, yes. Concrete lifting can raise a settled cap and fill the void beneath it, which often costs less than replacing it.
Extreme Weather Watch - Battle Ground monthly and annual precipitation from NOAA 1991 to 2020 normals.
Lower Columbia Estuary Partnership - East Fork Lewis River bank erosion, property loss and the 1995 to 1996 levee breach.
Washington Department of Fish and Wildlife - Hydraulic Project Approval requirement for work in or near state waters.