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Avatar for Slabjack Geotechnical
Slabjack Geotechnical
4.7(
76
)

Serving Sultan, WA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Slabjack Geotechnical is a very competent, professional, and courteous organization. They did an excellent job stabilizing the concrete front-porch on my rental house and were truly a pleasure to do business with."
 Residential entry before
 Residential entry after
 Sidewalk after
 Sidewalk Before
 Large Porch before

+2

77 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Groundworks
Groundworks
4.7(
17
)

Serving Sultan, WA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Samuel and partner were friendly and did a great job lifting the concrete porch to even up to the foundation. Job was done better Than I had expected. These guys were great and should be commended!"
Foundation
Foundation
Foundation
Concrete
Concrete

+15

56 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for Joseph Concrete Specialist
Joseph Concrete Specialist
4.7(
26
)

Serving Sultan, WA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Joseph is a great guy, hard worker and takes pride in his work. We pulled out all of the grass in our backyard and laid concrete down to extend our existing patio. Joseph showed up on time everyday, did what we agreed to do. No complaints and i would recommend him."
WALKWay
driveway
patio
Additional Photos
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+58

Recommended by95%of homeowners
Avatar for Northwest Poly Services, LLC
Northwest Poly Services, LLC
4.8(
23
)

Serving Sultan, WA and surrounding areas

In business since 2017

Free estimates

Warranties offered

"They did a good job, but do to an unforseen issue we were not able to achieve 100% leveling. This was also discussed during the estimate and before the start of the project, that there may be issues. It is still 99% better than the previous 3 inch sag. Johnny also adjusted his price. These are some good guys trying to make a decent living. Would call again and have recommended them to others."
Small Drill Hole in Concrete
Sunken and Settled Concrete Slab Before
Uneven Concrete Walkway Slab
Level Concrete Walkway Slab
After lifting the concrete walkway slab

+2

Response time1 day
Recommended by90%of homeowners
Palm Construction and Remodeling, Inc.
5.0(
118
)

Serving Sultan, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Response time3 days
Avatar for Nelson's Concrete Designs LLC
Nelson's Concrete Designs LLC
4.1(
121
)

Serving Sultan, WA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Nelson and his crew did a fantastic job! We did a large concrete slab in our backyard garden, 800sf. We wanted a modern look and various shapes to fit our landscaping. Nelson did exactly what we wanted with a very positive attitude. The work was done very professionally and fast as they have all the necessary equipment. They first excavated, then put gravel and compacted it, installed rebar enforcement every 16 inches crossed, and poured the concrete. Everything was leveled, with the proper slope to take water away from home. They finally did a light broom finish. We are glad we found them on Angie's list and highly recommend them."
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Additional Photos

+8

Recommended by80%of homeowners
Avatar for American Concrete N Masonary
American Concrete N Masonary
5.0(
6
)

Serving Sultan, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"We had a huge job in our yard that included several aspects of technical work: walls, leveling, patio floors, drainage, irrigation, lighting, conduits, and more. We were very happy with the overall process of getting it done, efficiency of work, and communication. The finished patio looks great!"
Additional Photos
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Additional Photos
Additional Photos

+29

Recommended by100%of homeowners
Avatar for PolyTech Northwest
PolyTech Northwest
4.9(
18
)

Serving Sultan, WA and surrounding areas

In business since 2003

Free estimates

Warranties offered

"Poly Tech field technician is actually the Owner! He and his assistant were AWESOME ! Definitely went above and beyond in expanding their scope over and above the estimate at no additional charge!! And their work is First Rate and it exceeded our expectations totally! If you need any concrete work done at very reasonable costs don t look any further! Ron and Joy Anderson"
Response time2 days
Response rate91%
Recommended by94%of homeowners
Avatar for Perma-Dry Waterproofing & Drainage, Inc.
Perma-Dry Waterproofing & Drainage, Inc.
4.4(
209
)

Serving Sultan, WA and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"I initially contacted Perma-Dry after seeing that I was still getting water in my garage in an area that had been repaired twice by others.  They sent out an estimator within a few days who gave me lots of good advice on several issues that I was having.  I thought that I could not afford the work this year and let him know.  Then, I changed my mind after we had rain for the first time in months.  Perma-Dry honored my quote from May and did the work in 1 day.  They installed drains in my garage and also put some sealant in the spot where the water was coming in.  Perma-Dry was very responsive to many questions that I had, and the guy in charge that day had me look things over and also warned us to give the wet cement 4 days to dry completely.  It has rained several times since the work was done and the problem seems to be solved.  I like also that the work is guaranteed.
"
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+7

Recommended by90%of homeowners
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Concrete Leveling questions, answered by experts

Concrete leveling can last anywhere from five to 10 years or more, and in some cases, it can be a permanent solution. The longevity depends on the method used and whether the underlying cause of the sinking is addressed. For example, mudjacking typically lasts five to 10 years, while polyjacking can last for 20 years or more. It's best to consult a professional for an accurate timeline based on your specific situation and any factors that could cause the issue to recur.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

The average cost for mudjacking is around $1,200, though prices can range from $300 to $3,400. On a per-square-foot basis, you can expect to pay between $3 and $8, with an average of about $5 per square foot. The final cost depends on several factors, including the square footage of the concrete, the type of slab, its accessibility, whether it is load-bearing, and the type of material used to lift it. Generally, lifting a driveway, small patio, or sidewalk is less expensive than lifting a slab foundation or garage floor.

A slurry of cement, sand, and water is injected beneath the concrete to lift and stabilize it.

Polyjacking can be a permanent solution to sunken concrete if you also address the underlying issue—like poor drainage—at the same time. The polyurethane material itself can last as long as or even outlast the concrete you’re lifting it with. Your sunken concrete issue will likely return if you don’t couple polyjacking with proper drainage to prevent future soil movement and sinking.

The Sultan, WA homeowners’ guide to concrete leveling services

From average costs to expert advice, get all the answers you need to get your job done.