Basements
A damp basement in Spokane is often a water-path problem: rain and spring melt against a wall, a window well that holds water, or a crack that finally opened. It is not automatically a failed foundation. Spokane Foundation Co does not waterproof basements. We send your description to independent contractors who price that work themselves.
Say where the water shows up and whether it follows rain, snowmelt, or a plumbing leak.
Look at the first place it gets wet, not the puddle in the middle of the floor. Water along the joint where the wall meets the slab, a dark line under a window, efflorescence (the white powder on masonry), or a drip from a single crack are different stories. A musty smell with no visible water can be humidity from the concrete, or a slow seep you only catch after a wet week.
Spokane winters include freeze and thaw, and spring brings melt. That is a general climate fact, not a claim that a study measured your block. Poor grading and downspouts that dump next to the foundation make those weeks harder on a basement. Contractors usually look outside before they talk about pumps.
Interior work, in plain terms, manages water that has already reached the inside face of the wall. A common approach is a drainage channel and a sump that lifts the water out. It does not make the soil outside dry. It gives the water a controlled place to go.
Exterior work means excavating along the wall, treating the outside, and usually adding drainage at the footing. It is disruptive and it is priced for that. Fixr's national guide, updated January 27, 2026, lists sealing or waterproofing around $2,400 to $7,000, and notes that a fuller waterproofing approach costs more than a coating. Basement foundation repairs in that guide span about $2,500 to $25,000. Use those as national bands only. The cost page cites the source.
If the wall bows, the crack is horizontal, or the floor has dropped, drainage alone may not be the repair. Say so in the project details and read the notes on foundation cracks. If the floor above a crawl space is what slopes, start with crawl space repair instead of assuming the basement is the source.
Insurance is policy language, not a rule of thumb we can apply from here. Sudden damage from a covered event is treated differently from seepage that has been going on for years. Ask your insurer with photos in hand. Do not expect the contractor to know your policy.
Whoever contacts you is an independent contractor. Ask for their Washington registration and check it on the L&I verify tool. We do not do that check, and we do not pull permits.
Questions
No. Water can enter through a single crack, at the joint where the wall meets the floor, or because the ground outside slopes toward the house. Some of those paths need drainage work. Some also need structural repair. The person who looks at the house should say which one they are pricing.
Interior systems usually collect water that has already reached the wall and send it to a sump. Exterior work means digging down and treating the outside of the wall so less water arrives. They solve different points on the same path, and contractors price them differently.
Fixr's January 27, 2026 national guide lists foundation sealing or waterproofing around $2,400 to $7,000. Broader basement foundation repairs in that same guide run about $2,500 to $25,000. Those are national estimates, not Spokane bids.
Describe the water. A contractor can tell you whether the price is for drainage, a seal, or both.