Serving Redmond and King County, WA

Open 7 Days: (425) 522-5235
A worker holding a level staff against the interior wall of an empty room while a rotary laser on a tripod throws a line across the baseboard, taking floor elevations inside an ordinary house.

Foundation Repair in Redmond, WA

The easiest and most trusted way to find out which foundation repair job your property actually needs — and what it costs — before you pay for the wrong one.

Serving Redmond, WA · King County

Get a quick and easy price

Free Inspection The visit costs nothing and books nothing.

Free Estimate No cost, and no obligation to book.

Insured Contractors Ask to see the certificate before work starts. Every contractor we pass an address to carries one.

Local Crews Work is done by a local contractor, not a national call center.

Services

How a foundation repair estimate happens

  1. Request an Inspection

    Send the address, or call. Nothing else is asked for first.

  2. Free Inspection

    The visit costs nothing. The house is measured and the ground around it looked at.

  3. Written Estimate

    A scope and a price in writing. No obligation.

Facts About Redmond and Foundation Repair

The middle Redmond house went up in 1991, which decides what its foundation walls are

The Census puts the median year built in Redmond at 1991, so this describes a great many houses here.

Age matters because it decides what the walls under the floor are made of, whether they enclose a full basement or a crawl space. The oldest houses sit on stone or brick. Many from the middle of the last century sit on concrete block. Poured concrete became the common method after that. Those three crack, bow and get repaired in different ways, and a contractor who has not established which one you have is quoting a method rather than a job.

Ask which it is before anyone prices anything, and ask how they know. A block wall that has cracked along its mortar joints and a poured wall with a crack straight through it are not the same problem, even when the two look alike in a photograph.

25 percent of Redmond sits on soil that sheds water instead of taking it

The USDA sorts soil into four groups by how fast water moves down through it. Group A drains freely; group D holds water at the surface. Measured against the city limits, 25 percent of Redmond is group C or D.

On a foundation that figure is about where rain goes once it lands. Ground that sheds does not take water down quickly, so roof water and runoff stay near the surface and along the outside of the walls — the soil a basement or crawl space wall stands in.

That is also why the cheapest work is outside. A downspout that ends at the wall and ground that slopes toward the house send water to exactly the place it lingers. Ask for those two to be checked before anything inside is priced.

How long the ground stays wet beside a wall decides where to look first

The largest soil mapped in Redmond is rated: Moderately well drained

Drainage class is the USDA rating for how readily water leaves a soil. It is a fact about the ground, not a verdict on any house. It says how long rain lingers beside a basement or crawl space wall, and that is why the first checks on a foundation here are outside: where the roof water lands, and which way the ground falls.

Source: USDA NRCS Soil Survey Geographic Database (SSURGO), via Soil Data Access

How deep a pier has to go is found during the work, not promised in the quote

The shallowest mapped water table reaches the surface

A pier bears on ground that does not move with the season. Where the seasonal high water table comes this close to the surface, the soil above it is saturated for part of the year and is not that ground, so the depth to competent bearing is discovered as each pier goes in. This is the shallowest value among the largest soils mapped here, not a typical one — treat a quote naming a fixed depth as a quote that has assumed one.

Source: USDA NRCS Soil Survey Geographic Database (SSURGO), via Soil Data Access

The age of the house decides what its foundation walls are made of

The median year built in Redmond is 1991

Stone, brick, concrete block and poured concrete walls take different repairs, and which one a house has is a function of when it went up. A block wall cracks along its mortar joints; a poured wall cracks straight through. Ask which construction you have, and ask how they established it.

Source: US Census Bureau, American Community Survey 5-Year Estimates 2023

How foundation repair works

Foundation repair is the business of putting support under a house that has lost it. A pier is driven or drilled down to ground that does not move, the structure above is lifted back toward where it started, and the load is transferred onto the new support. The house is not made new. It is made stable.

Three things decide the price, and none of them is the size of the house. How many support points it needs. How many of those are indoors, because an interior point means opening the floor and closing it again. And how deep each one has to go before it reaches competent ground, which is measured during installation rather than assumed beforehand.

A basement wall can fail on its own, with the footing under it sound. The soil outside pushes in, and a wall that has bowed, leaned or cracked through is held with anchors or bracing, or taken down and rebuilt. A wall that is damp but still straight is a different trade: waterproofing, not foundation repair, and a quote for anchors on it is the wrong job.

Doors and windows that stick

A door that catches at the top corner, a window that will not close square, or a gap that opens along the top of a frame. These are the frame telling you the opening is no longer rectangular. Before booking anything, get relative floor elevations measured across the whole house — a survey costs a fraction of a repair and is the only thing that says whether the movement is 1 inch or 3, and whether it is still going.

Cracks in brick, drywall or the slab

A stair-step crack through brick mortar, a diagonal crack from a door corner, or a line across a slab. Width is the wrong single test: a hairline crack that is growing matters more than a wider one that has been still for a decade. A dated photograph with a ruler in it, taken a few months apart, costs nothing and answers the only question that decides whether to repair or to watch.

Which foundation repair method fits a Redmond house

Foundation Repair Inspection. A foundation inspection takes relative floor elevations across the whole structure and writes them down, so the shape and size of the movement is a measurement rather than a description. Foundation Repair Inspection in Redmond, WA.

Foundation Crack Repair. Cracks are repaired once movement has stopped. Sealing one that is still opening buys a season and removes the only thing telling you how fast the house is moving. Foundation Crack Repair in Redmond, WA.

Foundation Piers. Leveling a house means installing support below the soil that is moving, then raising the structure back toward its original elevation as far as it will safely go. Foundation Piers in Redmond, WA.

Concrete Leveling Repair. Concrete leveling raises a sunken slab by filling the void underneath it, either with a cement slurry or with expanding foam, and the concrete itself is reused. Concrete Leveling Repair in Redmond, WA.

Basement Wall Repair. Basement wall repair holds a wall the soil has pushed inward: anchors tied into the yard, braces set inside, or a rebuild of the section that has failed. A damp wall that is still straight is waterproofing, a different trade. Basement Wall Repair in Redmond, WA.

Foundation Drainage and Moisture Control. Wet soil presses harder on a basement wall than dry soil, and water standing against the wall finds any crack it has, so the work is getting surface water away from the house. Foundation Drainage and Moisture Control in Redmond, WA.

Commercial Foundation Repair. Commercial foundation work is priced from occupancy, phasing and engineered load before it is priced from area, because the building usually has to keep operating. Commercial Foundation Repair in Redmond, WA.

Crawl Space Repair. Crawl space repair covers three separate jobs — sealing the ground so moisture stops rising, supporting the framing so the floor stops moving, and getting water out and air through. Most houses need one of the three, not all of them. Crawl Space Repair in Redmond, WA.

Choosing between two of them

Two questions come up often enough to have their own pages, and both are decided by the site rather than by preference. Push Piers vs Helical Piers in Redmond, WA. Mudjacking vs Foam Lifting in Redmond, WA.

Not sure which of those it is?

The pages above are sorted by what you can see, not by what a contractor would call it. If none of them is obviously yours, the index lists every job a Redmond lot might need and what each one is the answer to. Foundation Repair Services in Redmond, WA.

Read how a Redmond Foundation Repair Co estimate works for the six steps from an address to a written quote. See About Redmond Foundation Repair Co for the arrangement in full, including what this site is not.

When you do not need foundation repair

Two things get mistaken for foundation failure more than anything else. The first is a hairline crack in a poured basement wall or in mortar. If it has been there for years and has not widened, it is usually a shrinkage crack from when the concrete cured, not a structural one. The second is a door that binds through the damp months and swings free in the dry ones. That door is following the season. Wood framing takes on moisture and gives it back, and the door and its frame move with it. Neither one is a reason to put piers under a house or anchors through a wall. A contractor who quotes on either without measuring first is selling you the wrong job.

Two checks worth making before anyone quotes you.

If both checks come back quiet, wait a season and look again before spending anything larger.

Read what a Redmond foundation repair job costs before calling anyone, and check the Redmond Foundation Repair Co service area to see whether your street is covered.

Rather talk it through?

(425) 522-5235

One call about which foundation repair job you actually have in Redmond, before anyone quotes you for one.

Or send your address instead

Service Area

We serve the greater Redmond and King County area.

9.3 miles from Redmond
Median year structure built, Redmond and the towns around itClyde Hill 1973, Medina 1974, Bellevue 1981, Maltby 1983, Cottage Lake 1984, Redmond 1991, Sammamish 1994, Woodinville 1995, Union Hill-Novelty Hill 2001. From the American Community Survey five-year estimates 2023, table B25035.PLATE 1 — MEDIAN YEAR STRUCTURE BUILT19701980199020002010Clyde Hill1973Medina1974Bellevue1981Maltby1983Cottage Lake1984Redmond1991Sammamish1994Woodinville1995Union Hill-Novelty Hill2001
Every mark is one American Community Survey value, with its margin of error and the date it was retrieved. The anchor is drawn in the action color because it is the figure the page argues from. US CENSUS BUREAU, AMERICAN COMMUNITY SURVEY 5-YEAR ESTIMATES 2023 TABLE B25035_001 · RETRIEVED 2026-10-07 · MARGIN OF ERROR ±1 TO ±8 YEARS

Questions people actually ask

What is the process to get an inspection and an estimate?

Send your address and what you are seeing. That goes to a foundation repair contractor working in Redmond, who arranges the inspection directly with you. The inspection takes relative floor elevations across the house and writes them down, which on a typical single-story house takes 1 to 2 hours on site. The written estimate follows from those readings, which is why a number quoted before anyone has measured is a guess.

What does an inspection cost?

It costs you $0, and nothing is booked at the end of it. The point of the visit is the measurement and the written estimate; what you do with that estimate is a separate decision, including taking it somewhere else for a second opinion.

Are cracks in a Redmond house always a foundation problem?

No, and that matters because the cheap answer is common. Drywall cracks from seasonal humidity, settling in the first 2 years of a new build, and framing movement all look similar. What separates them is measurement over time: a crack that is the same width in 6 months is a record, not a problem.

How deep do piers go under a house here?

Deep enough to bear on ground that does not move with the season, which is found during installation rather than promised beforehand. Two houses on the same street can reach it at different depths. Treat any quote that fixes a depth in advance as a quote that has assumed one.

Should I get an engineer or a contractor first?

It depends who asked. If a lender, an insurer or a buyer wants a letter, only a licensed engineer's stamped report closes that file. If nobody has asked and you want to know whether the house is moving, a floor elevation survey is cheaper and gives you a baseline. A second survey 12 months later shows whether it is still moving.

When can foundation work be done in King County?

In any season, because the ground is only the constraint for the part of a job dug from outside. Digging along a wall is slower when the top 1 or 2 feet are frozen or saturated. Bracing set from inside a basement is held up by neither, and neither is a floor elevation survey.

Who pulls the permit?

The contractor doing the work, in their own name, and the requirement varies by jurisdiction rather than being universal. Ask to see it before the first pier goes in. A contractor who suggests skipping it is telling you something about the rest of the job.

What kind of ground is under Redmond?

The largest soil unit mapped here is hydrologic group B. The USDA sorts soil into four groups by how fast water moves down through it: A takes water fastest, and D holds it at the surface. Soil is mapped by the acre rather than by the lot, so one yard can differ from the map unit drawn under it.

USDA NRCS Soil Survey Geographic Database (SSURGO), via Soil Data Access · retrieved 2026-10-07

How old is the typical house in Redmond?

The median year built is 1991. A house of that age was graded to shed water when it went up, so water arriving long afterwards usually points at something that changed outside — a downspout ending too close to the wall, a patio poured to the wrong slope, or soil settled against the footing.

US Census Bureau, American Community Survey 5-Year Estimates 2023 · retrieved 2026-10-07

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