Mold Inspection At Seven Bays, WA

Seven Bays is a marina community on the Lincoln County shore of Lake Roosevelt, north of Davenport off State Route 25. Cabins, park models, RV sites, moorage and a lot of property that is used hard for four months and sits untouched for the rest of the year.

We are based on this lake. Our owner runs boat and RV storage here, which means we understand seasonal property and the specific ways it goes wrong better than a company driving out from Spokane for the first time.

No trip fee to Seven Bays or anywhere else on the lake.

We test only. We never remediate and we take no referral fees from the companies that do.

Park models and small structures

Park models and small cabins concentrate every moisture problem a full-size house has into a fraction of the volume. There is less air, fewer places for moisture to go, and typically no mechanical ventilation beyond a bath fan and a range hood that may or may not vent outside.

Roof and skylight penetrations. Small structures have proportionally more roof penetrations per square foot, and sealant fails.

Under-floor. Units set on blocks with skirting have the same trapped-ground-moisture problem as manufactured housing, often worse because the clearance is lower.

Winterizing. A unit that was not fully drained can split a line and leak all winter into a cavity nobody opens.

Boathouses, moorage and stored gear

Covered moorage traps humid air over water under a roof. Anything absorbent stored in it stays damp: cushions, life jackets, canvas covers, carpet, upholstery.

Boat interiors are a real and separate category. A boat that sat all winter with a cover holding water, or with a bilge that never fully dried, develops exactly the same problem a house does and in a smaller space.

If what you are worried about is a boat or a boathouse rather than a dwelling, say so when you call. Sampling works, but placement and interpretation are different and we would rather set it up correctly.

Opening up in spring

The busiest version of this call comes in April and May. Someone opens a place that has been closed since October and something smells wrong.

That smell has had six months to develop, which means whatever caused it started last fall. Finding the source matters more than the spore count, and that is what the moisture mapping and thermal imaging are for.

Air out the space if you can, but do not scrub or spray anything before we come. Cleaning ahead of a test does not remove the underlying moisture problem and it can make the sample harder to read.

Basalt, thin soil and where the water goes

Most of the building sites around Seven Bays sit on a shallow layer of soil over basalt. That matters more than people expect. Water that falls on the uphill side of a house does not soak straight down the way it would in deeper ground. It runs along the top of the rock, follows the easiest path, and shows up at the low corner of a crawl space or against a footing that was never meant to hold it back. Owners tell us they have no drainage problem because the surface is dry, and they are describing the surface correctly. The water is moving a foot below it.

The tells are consistent. Efflorescence, that chalky white bloom, on one section of foundation wall and nowhere else. A vapor barrier that is dry across most of the crawl space and damp in a single lane. A musty smell that is strong for two or three weeks after a wet stretch and then fades. When we measure, we are looking for that directional pattern, because a wall that is wet on one side and dry on the other tells you where the water is arriving and roughly how to interrupt it. Very often the fix is a swale, a gutter extension, or a short run of drain rock, not a foundation project.

Smoke season and the closed up building

August and early September change how these buildings are used. Windows that would normally be open all summer stay shut for weeks, portable filters run on recirculate, and nobody wants outside air. That is the right call for smoke and it is hard on humidity. Cooking, showering and a few people breathing put a real amount of water into a closed building, and if the only ventilation is a bath fan that vents into the attic, which we find more often than you would like, that moisture goes somewhere you cannot see.

We get a wave of calls in late September from people who did everything right during the smoke and then noticed a smell once the air cleared. If your place was sealed up for a long stretch this summer, the useful thing is to look before the heating season starts, while whatever happened is still measurable in the materials. Air sampling in a closed building is also cleaner to interpret, because you are not fighting a wide open window during the sample.

If you are buying at Seven Bays

Recreational property transactions move fast and the inspection window is usually short. If a general home inspector has flagged a smell, a stain or elevated moisture, you do not need a remediation company to tell you how big the problem is. You need somebody with no stake in the answer to measure it and write it down, which is the whole reason we do not do remediation. We can usually work inside a standard inspection contingency window, and we can coordinate with the general inspector so you are not paying twice for the same crawl space visit.

What buyers actually use the report for is the negotiation and the follow up. A report that says exactly where the moisture is, what the lab found, and what a reasonable scope of work looks like gives you a number to bring to the table. And if the seller has work done before closing, we come back and verify it, which means you are not taking a contractor's word for their own work on the day you sign.

What it costs

$425 standard inspection with one indoor air sample plus an outdoor control plus a same-day outdoor control, lab fees included. $100 per additional sample. $375 flat clearance up to three samples.

No trip fee. If several owners at Seven Bays want testing in the same stretch, mention it and we will group the scheduling.

Common questions

It is a park model, not a house. Do you still test it? Yes. Smaller structures are often easier to read because there are fewer variables, and the causes are usually under the floor or at a roof penetration.

Can you look at a boat or a boathouse? Yes. Tell us that is the concern when you call so we can place samples appropriately. Marine spaces behave differently than living spaces.

Should I clean it up before you come? Air it out, but do not scrub or spray. Cleaning before a test does not fix the moisture source and it makes the result harder to interpret.

Is there a surcharge for coming out here? No. We are on this lake already.

Book an inspection in Seven Bays

Call and tell us what you opened up to and how long the place had been closed. If testing is not going to add anything to what you already know, we will tell you that first.