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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 home and commercial foundations in the Greater Seattle and Tacoma areas.

Visit us at www.matveyfoundationrepair.com.

Visit us at www.matveyconstruction.com.

TerraFirma Foundation Systems

761 NE Garden Valley Blvd.
Roseburg, OR 97470

10111 S Tacoma Way Suite D5
Tacoma, WA 98499

13110 SW Wall St
Portland, OR 97223

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..."

View Review

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 Mt.Baker Hwy in Deming

We have 9 8x8 agraget squares that need to be lifted back to level with county requirements. Squares are no more than 1 half inch low. Thank You.

SE 38th St. in Issaquah

Hi, I need Slab Jack / mud jack for the backyard concrete patio.

228th Ave Ne 3c in Sammamish

Front porch has sunk about 1-2 inches. it's about 12 x 8 slab. 7 year old home.

170th CT NE in Redmond

Want to level concrete at multiple places

in Bellevue

The foundation is good. the Front concrete slob is sinking. Can you give us a quote?

SE 185th PL in Renton

Need to level entry walk and stairs. No posts or walls

259th ST NW in Stanwood

Front porch has settled and is slanted. Porch is exposed aggregate

181st Sw in Bothell

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

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%

NE 135th Place in Kirkland

Slab on an aggregate walkway has sunk and needs to be releveled to the other slabs

43rd St E in Edgewood

Pool deck needs to leveled

10th Ave E in Seattle

One section of lifting sidewalk about 3-4 inches

Polo Park Dr in Bellingham

Cracked sinking unlevel 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?

23rd Ave Ct E in Tacoma

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

E 56th St in Tacoma

Concrete porch is sinking towards the house

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.

Glacier Peak Drive in Camano Island

Areas of driveway have to be raised as well as entrance porch slab

NE Ohman Road in Kingston

Garage floor requires to be brought up to grade

Steamboat Loop SE in Port Orchard

My aggregate driveway is made up of sections and I have 3-4 sections that have cracked and sunk due to soil erosion.

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

Gamble Ln in Port Ludlow

I have four 4x4.5' slabs and one 4x7' slab that need to be raised. Additionally parking slab was poured in '91 with wood dividers for expansion. These are mostly rotten and I am looking for a solutions to fill or replace.

29th Street in Port Townsend

Patio is 31'x16', constructed with 7" x 9" pavers that are cemented together. A sewer line runs diagonally under the patio and the backfill was apparently not properly compacted before the pavers were laid and cemented. Is it possible to lift the sunken areas, or would replacement be better?

NE 111th Circle in Vancouver

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

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.

Hazel Dell Road in Castle Rock

Concrete porch is sinking and pulling roof down with it. Can you fix?

Denmark St. in Rochester

Cracked Cement slab and corner of slab broke and sunk. The porch is sagging in the middle as well. crawled under home and there is a large hole in that area as well as underneath the concrete. Small hole forming in front of concrete in the driveway area. We have taken pictures underneath the porch if you would like us to send them to you. The concrete appears to be very thick.

Recent job requests for PolyLevel in WA:

Project Location: Mt.Baker Hwy, Deming, WA 98244

Comment: We have 9 8x8 agraget squares that need to be lifted back to level with county requirements. Squares are no more than 1 half inch low. Thank You.

Project Location: SE 38th St., Issaquah, WA 98029

Comment: Hi, I need Slab Jack / mud jack for the backyard concrete patio.

Project Location: 228th Ave Ne 3c, Sammamish, WA 98074

Comment: Front porch has sunk about 1-2 inches. it's about 12 x 8 slab. 7 year old home.

Project Location: 170th CT NE, Redmond, WA 98052

Comment: Want to level concrete at multiple places

Project Location: , Bellevue, WA 98006

Comment: The foundation is good. the Front concrete slob is sinking. Can you give us a quote?

Project Location: SE 185th PL, Renton, WA 98055

Comment: Need to level entry walk and stairs. No posts or walls

Project Location: 259th ST NW, Stanwood, WA 98292

Comment: Front porch has settled and is slanted. Porch is exposed aggregate

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: 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: NE 135th Place, Kirkland, WA 98034

Comment: Slab on an aggregate walkway has sunk and needs to be releveled to the other slabs

Project Location: 43rd St E, Edgewood, WA 98372

Comment: Pool deck needs to leveled

Project Location: 10th Ave E, Seattle, WA 98102

Comment: One section of lifting sidewalk about 3-4 inches

Project Location: Polo Park Dr, Bellingham, WA 98229

Comment: Cracked sinking unlevel patio slab

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