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Our Services

Lifts settled slabs and slab foundations
Lifts and levels sunken sidewalks driveways and patios
Levels concrete steps and landings
Fills sinkholes and other voids
Lifts, levels and stabilizes roadways and airport runways
Strengthen and stabilizes loose soil for preconstruction applications

Our PolyLevel^® Dealers Serving Washington

1912 S 146th St
Seattle, WA 98168

Matvey Foundation Repair, Inc. provides expert structural support solutions for new and existing homes and commercial foundations in the Greater Seattle and Tacoma areas.

Visit us at www.matveyconstruction.com.

TerraFirma Foundation Systems

761 NE Garden Valley Blvd.
Roseburg, OR 97470

932 Industry Drive STE 200
Seattle, WA 98188

13110 SW Wall St
Portland, OR 97223

10111 S Tacoma Way D5
Lakewood, WA 98499

TerraFirma Foundation Systems is Oregon's locally owned and PolyLevel dealer, providing basement waterproofing, crawl space repair, and foundation repair services.

Visit us at www.goterrafirma.com.

Visit us at www.terrafirmafs.com.

Conditions where outdoor concrete has already begun to sink is not uncommon in Washington and is often the result of shifting or a weak soil base or erosion. It causes driveways, sidewalks, walkways, concrete steps or patio areas to become tripping hazards and can effect property value.

Washington, also known as The Evergreen State, hosts a variety of soil types, ranging in density and load-bearing capacities. Topography includes a mix of inlets, bays mountains and a semi-arid basin.

Soil in any environment can change, however. When the weight above the soil exceeds the soil below, the soil will compact and settle. Clay and silt can also cause soil to compact when it becomes dry. Regardless of the reason, once soil becomes compact, heavy concrete above the soil will sink and crack. It's a gravity thing!

While it is a very noticeable problem, with the right contractor, it can have a very simple solution.

Previously, sinking concrete was repaired by a technique called "mud jacking" that uses a thick slurry to fill in the gap underneath the sunken concrete. While effective, it is not the most efficient way to solve the problem, and adds more weight above the compacting soil.

Today, select contractors in Washington are trained and to provide a better alternative to mud jacking. PolyLevel is a less intrusive, lighter weight solution that doesn't add more weight to the problem.

If you are seeing signs of sinking concrete on your property, have a contractor to provide the PolyLevel alternative to mud jacking take a look at it. The following Washington contractors are trained and to provide a free estimate to solve your sinking concrete problem.

Customer Reviews

By Patti L.
Silverton, OR

"I was very pleased with all aspects of the work...I would highly recommend..."

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Customer Review

By Patti L.
Silverton, OR

I was very pleased with all aspects of the work...I would highly recommend your firm to anyone who asked about it!

Click to see why people hire us

Recent work requests in WA S. Tyee in East Wenatchee

Slab is pulling away and sloping away from foundation

Dry Creek Rd in Ellensburg

SE 9th St in North Bend

I have a 10' x 10' concrete patio that has cracked and is offset by about an inch or two. Would like an estimate to repair. Can provide photos and exact measurements.

Manion Way Ne in Duvall

Our walkway in the front of the house has sunk about 9"-10" at the entry porch. I would like a quote and more information on this process of concrete "lifting". Thank you!

189th Ave NE in Sammamish

Front porch slab needs to be raised

Tom Marks Rd in Snohomish

Back patio is sloping and has visible voids underneath. Would like to preserve for 5 years before replacing entirely.

179TH AVE NE in Redmond

We bought a house that was built in 70s, concrete on the drive way is not flat. We would like to have it fix, turn it back to nice and flat. (prefer to contact me via email)

51st Ave NE in Marysville

Part of my front landing is cracking and sinking

SE 46th Pl in Bellevue

Sinking patio concrete at backyard. The siding connected the concrete is bent.

181st Sw in Bothell

Garage slab has settled and want to make sure what is going on? Costs to repair?

Lind Ave NW in Renton

My driveway is about 4" lower than the garage. It has a little crack also. I'd like to raise it or fix it. Thank you!

2nd Pl W in Bothell

I am going to have our driveway replaced and the contractor wanted someone to look at the garage floor and determine whether it needs to be raised.

Gough Street in Sumas

I have a 12 x 12 slab that is needing to be raised. The slab is very bad and is cracked In pieces and it all needs to be raised so it comes together. I would like to get this level to avoid injuries when my son tries to play. Basketball on it.

NE 133Rd Street in Kirjland

20 x 30 shop building with slab on grade that has settled at the rear 50%

31st DR NW in Arlington

Need an estimate on lifting a 96" X 66" concrete slab about 2 to 3 inches.

145th Avenue Ct E in Orting

Need one end of sidewalk raised a couple of inches where it meets front steps.

W MONTLAKE PL E in Seattle

Several sections of front sidewalk have sunk/lifted causing cracks and a tripping hazard.

63rd PL W in Edmonds

Concrete stair's bottom landing slab has settled, also 4 panels of the driveway slabs need to be leveled.

43rd St E in Edgewood

Pool deck needs to leveled

Polo Park Dr in Bellingham

Cracked sinking unlevel patio slab

82nd Ave Ct E in Graham

I'm looking for an estimate to raise/level a settled and cracked patio slab.

Lake Louise Rd in Bellingham

I have a concrete slab approx 8 x 8 that has sunk down hill and i would like to level it to put a hot tub on it versus breaking it up and starting over?

SW 320th Pl in Federal Way

Need small area in concrete driveway jacked and filled with material

W Pacificview Drive in Bellingham

4x4 slab between front steps and driveway is slanting. There is a crack between slab and steps. The slab and steps are covered with a stone aggregate. We would like to have an estimate to have this slab lifted/leveled. The driveway has 5 sections, 2 of which are partially slanting. We would also like to have an estimate for this work as well. Thank you!

23rd Ave Ct E in Tacoma

9'×9' large aggregate concrete driveway slab is beginning to sink. Large void visible from the side.

Pierce Ln Ne in Tacoma

The front right side of my garage slab is sinking

Jefferson Street in Bellingham

I have a decades old driveway that is uneven and cracking in several places. Looking for a quote to level it before I add a deck adjacent to it.

10th Ave Ct S, in Tacoma

NE Ohman Road in Kingston

Garage floor requires to be brought up to grade

Rosedale St. in Gig Harbor

Older house living room add on needing leveling on concrete slab

94th St CT NW in Gig Harbor

Two concrete steps have sunk about 2 inches on one side

SE 10TH STREET in Camas

REAR CONCRETE PATIO 6 SECTIONS, TOTAL PATIO DIMENSIONS ABOUT 20*1. ONE SECTION HAS DROPPED ABOUT 3 INCHES, AS A RESULT WATER IS DRAINING BACK INTO FOUNDATION. 2 SECTIONS HAVE DROPPED ABOUT 1-2 INCHES. NEED QUOTE TO FIX.

Ne 25th Cir in Vancouver

Need to level walkway/driveway.

PO Box 65081 in Port Ludlow

I have a driveway that needs lifting/repair

NE 59TH AVE in Vancouver

Have a 4 piece concrete patio. One of the slabs (6'x6') has sink a few inches and is told toward the house foundation. Would like a quote on poly leveling it.

NE 111th Circle in Vancouver

Half of our garage is settling and cracking. I would like an estimate on repair.

NE 102 St in Vancouver

Settling and cracked patio

Cougar St SE in Lacey

I have an outdoor patio that is several sections of concrete, and a few of the sections have sunk a few inches

Ne 10th Ave in Vancouver

Split level home. sidewalk has cracked and settled towards the basement wall. rain water gathers against the building.

NW 116th Cir in Vancouver

One slab on my driveway has sunk about 1" in a corner. I'd like a quote for lifting it back up level.

Wedgewood Dr SE in Olympia

Multi panel driveway. several areas could use work but one panel is the worst. I have a quote from another company and need to reduce the scope and price. what's a minimum trip and set up cost?

Garrison St Ne in OLYMPIA

Back step slopes to one side. Concerned about potential water damage coming from this.

W. Lynnwood Dr. in Longview

Garage slab has settled about 2" where it connects to the kitchen.

Ammons Dr in Longview

Our patio which our deck sits on is pulling away from the house.

Jennie's Blvd3602077367 in Sequim

Sinking patio. Do you service Sequim, Wa?

Recent job requests for PolyLevel in WA:

Project Location: S. Tyee, East Wenatchee, WA 98802

Search Request: sunken concrete

Comment: Slab is pulling away and sloping away from foundation

Project Location: Dry Creek Rd, Ellensburg, WA 98926

Comment:

Project Location: SE 9th St, North Bend, WA 98045

Comment: I have a 10' x 10' concrete patio that has cracked and is offset by about an inch or two. Would like an estimate to repair. Can provide photos and exact measurements.

Project Location: Manion Way Ne, Duvall, WA 98019

Comment: Our walkway in the front of the house has sunk about 9"-10" at the entry porch. I would like a quote and more information on this process of concrete "lifting". Thank you!

Project Location: 189th Ave NE, Sammamish, WA 98074

Comment: Front porch slab needs to be raised

Project Location: Tom Marks Rd, Snohomish, WA 98290

Comment: Back patio is sloping and has visible voids underneath. Would like to preserve for 5 years before replacing entirely.

Project Location: 179TH AVE NE, Redmond, WA 98052

Comment: We bought a house that was built in 70s, concrete on the drive way is not flat. We would like to have it fix, turn it back to nice and flat. (prefer to contact me via email)

Project Location: 51st Ave NE, Marysville, WA 98271

Comment: Part of my front landing is cracking and sinking

Project Location: SE 46th Pl, Bellevue, WA 98006

Comment: Sinking patio concrete at backyard. The siding connected the concrete is bent.

Project Location: 181st Sw, Bothell, WA 98012

Comment: Garage slab has settled and want to make sure what is going on? Costs to repair?

Project Location: Lind Ave NW, Renton, WA 98057

Comment: My driveway is about 4" lower than the garage. It has a little crack also. I'd like to raise it or fix it. Thank you!

Project Location: 2nd Pl W, Bothell, WA 98021

Comment: I am going to have our driveway replaced and the contractor wanted someone to look at the garage floor and determine whether it needs to be raised.

Project Location: Gough Street, Sumas, WA 98295

Comment: I have a 12 x 12 slab that is needing to be raised. The slab is very bad and is cracked In pieces and it all needs to be raised so it comes together. I would like to get this level to avoid injuries when my son tries to play. Basketball on it.

Project Location: NE 133Rd Street, Kirjland, WA 98034

Comment: 20 x 30 shop building with slab on grade that has settled at the rear 50%

Project Location: 31st DR NW, Arlington, WA 98223

Comment: Need an estimate on lifting a 96" X 66" concrete slab about 2 to 3 inches.

Concrete slab lifting for Commercial Buildings

About Us

PolyLevel uses high-density polyurethane expanding foam to raise settled concrete in residential and commercial applications. The state-of-the-art polymer injection is a cost-effective, advantageous alternative to mudjacking. PolyLevel has been tested under the toughest conditions by the nation's top structural contractors.

Our Services

Our PolyLevel® Dealers Serving Washington

Customer Review

Recent job requests for PolyLevel in WA:

About Us

Our PolyLevel^® Dealers Serving Washington