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Avatar for Slabjack Geotechnical
Slabjack Geotechnical
4.7(
76
)

Serving Startup, WA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"2 workers, pleasant manor, very professional, pride in performing a very perfectly leveled entrance. Concrete came up 2 inches on South side, and 2 inches at wood steps. We have carpenters adding Trex and handrails and excited to repaint the trim on the house."
 Residential entry before
 Residential entry after
 Sidewalk after
 Sidewalk Before
 Large Porch before

+2

Response time1 day
71 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Groundworks
Groundworks
4.7(
17
)

Serving Startup, WA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Rainy Day Basement System from my very first contact to office manager, were to most responsive to questions and concerns. Ryan, my first contact was fantastic, Jessica was always available to answer questions and worked with the Swinomish Tribe (permitting agency) to get everything needed. Rainy Day Basement Systems is a company I would recommend to anyone looking for quality, not just in workmanship but also in customer satisfaction."
Foundation
Foundation
Foundation
Concrete
Concrete

+15

56 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for AAA Quality Concrete
AAA Quality Concrete
4.8(
53
)

Serving Startup, WA and surrounding areas

In business since 2010

Free estimates

"‪AAA concrete is an excellent company that strives to fully satisfy. This was the only company that truly listened to my desires and made sure to explain all possible options and limitations that could lie ahead. They have a trustworthy, courteous and hardworking group of craftsman. Noa showed a high level of responsiveness and respect. I enjoyed working with all of you. I would definitely use this company again and would recommend you and your company without reservation.‎‬"
Recommended by97%of homeowners
Avatar for Joseph Concrete Specialist
Joseph Concrete Specialist
4.7(
26
)

Serving Startup, WA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Joseph and his crew were delightful and professional to work with. I wanted a stamped concrete driveway and Joseph took time to throughly explained to me the color and seal options. They came in leveled and graded my drive hauled away some dirt and broken concrete set the forms and finished the site prep all in one day They returned a day later poured and finished my 73 foot long 15 foot wide driveway on one day. They returned a day later to clean up, remove forms and apply the sealer. Upon their departure they left behind nothing but a beautiful Roman slate textured driveway! In the end I could not be happier! My driveway looks great and literally sparkles as if it was natural slate! Just as Joseph promised! You won't be disappointed!"
WALKWay
driveway
patio
Additional Photos
Additional Photos

+58

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

Serving Startup, 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 Startup, 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 Startup, 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."
Additional Photos
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Additional Photos
Additional Photos

+8

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

Serving Startup, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"From the minute they got out of the truck to check our project, to give us a bid we knew they were the company we would hire. They seemed to know what we wanted by way of design and finish, before we spoke. Where other companies had said flat out “We won’t do this.” “Too much work removing old concrete.” Poor access.” Moli said, “Yes, this old concrete gotta go. But, it’s no problem. We bust it up. We take it out.” At the end of the first day all of the old concrete had been removed and taken away. At the end of day two all the forms were set. Day three was rebar and detail work making all ready for the pour. Day four The concrete was poured stamped and finished. On day five everything was picked up cleaned up and they were gone. These are good people. They do good work and they are as honest as the day is long."
Additional Photos
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+29

Recommended by100%of homeowners
Showing 1-10 of 41
Concrete Leveling questions, answered by experts

Mudjacking can be an expensive foundation repair process, but in many cases, it’s well worth the investment. This is especially true if you’re lifting a portion of sunken foundation slab back into place. In that case, mudjacking can help avoid major structural damage and even home collapse by restoring the integrity of your structure with minimally invasive procedures. Mudjacking a concrete patio, walkway, or sidewalk can be worthwhile because it removes tripping hazards and makes your outdoor area more aesthetically appealing.

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.

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The total drying time can vary depending on the size of the project. Because the slurry mixture contains cement, it needs to harden fully to prevent the concrete slab from shifting under added weight. You should avoid walking on the concrete or placing heavy items like furniture or vehicles on the surface until it has fully set. Your concrete contractor can provide a precise timeline. As a point of comparison, if you opt for polyjacking, the polyurethane foam can dry in minutes, but it's recommended to wait about an hour before use.

Mudjacking is your best bet for leveling concrete on a tighter budget. It’s less expensive than foam or grout mixture. For smaller, surface-level issues, you could also use a self-leveling compound, which creates an even surface over existing concrete—it’s a budget-friendly option suitable for DIY enthusiasts.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

The Startup, WA homeowners’ guide to concrete leveling services

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