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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

"Corrected a uneven concrete walkway. Because of the height difference in my concrete walkway it was a dangerous tripping hazard. I am very happy with their work. I highly recommend them!"
 Residential entry before
 Residential entry after
 Sidewalk after
 Sidewalk Before
 Large Porch before

+2

Response time1 day
72 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

"The crew from Groundworks was amazing! Quick, efficient, and very professional. Esteban, Micheal, and Oscar did a great job and were friendly. Esteban did a superior job communicating everything to me including when they would arrive and leave the job and their daily progress. I would highly recommend this company if you need work done."
Foundation
Foundation
Foundation
Concrete
Concrete

+15

63 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

"This place is amazing. Above and beyond all expectations. The job was done with precision and quality, along with 1 week ahead of schedule. They even returned on a national holiday to finish up. The price was great too! It was at the low end of what I thought was possible, and that included stronger concrete and reinforcements than I planned. Very happy to work with these people. Will definitely be my first choice for any future concrete projects. AAA+"
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 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
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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by80%of homeowners
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Concrete Leveling questions, answered by experts

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The exact time can vary depending on the size of the project. Because the slurry mixture contains cement, it must fully harden to ensure that added weight from walking, furniture, or vehicles won't shift the concrete slab. A professional contractor can advise you on when the surface is safe to use. For comparison, if you use polyjacking instead, the polyurethane foam can dry in just a few minutes, but it's best to wait about an hour before use.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

Many contractors offer warranties for their work. Confirm terms before starting the project.

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

Mudjacking is suitable for sidewalks, driveways, patios, and nearly all exterior flat structures. However, it may not suit severely damaged or heavily cracked areas.

The Startup, WA homeowners’ guide to concrete leveling services

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