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*The Angi rating for Concrete Mudjacking companies in Saint John, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Mudjacking needs.

*The HomeAdvisor rating for Concrete Mudjacking companies in Saint John, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Mudjacking needs.

Last update on May 10, 2025

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Avatar for MTU Services LLC
MTU Services LLC
5.0(
5
)

Serving Saint John, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We’ve had a lot of crews in our home for various projects over the years, and I have to say this was one of the most courteous. They worked hard, navigating through our kitchen to access the basement and I really appreciated their efforts. Thank you MTU, we now have safe walls in our cellar and fresh beams to keep the house standing ;)"
Elevator pit waterproofing and sealing
Piers under an existing home
Piers under an existing homes middle wall
Solutions/Answers
Response time1 day
Response rate100%
13 neighbors recently requested a quote
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Streamline Industrial
5.0(
4
)

Serving Saint John, WA and surrounding areas

In business since 2020

Free estimates

"Streamline Industrial Corp. was quick, prompt, and performed superior work. Their estimate was very accurate on price as well as time. The employees were polite, knowledgeable, and professional. I’m extremely happy with how my deck turned out. Truly quality craftsmanship throughout as well as quality materials used. I would absolutely hire them again. 10/10 would recommend."
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Recommended by100%of homeowners
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All Points Construction
1.0(
26
)

Serving Saint John, WA and surrounding areas

In business since 2000

All Points Construction is experienced in assisting customers with all aspects of the construction process. Keen attention is paid to the customers needs and budget during the beginning design stage. All options are presented to our customer so that they can have the best design for their particular project. All-Points Construction can finish your project in a timely manner while maintaining the highest quality possible. In addition, you can rest assured that our projects will stand the test of time with our 3year workmanship warranty.

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Concrete Mudjacking questions, answered by experts

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 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.

On average, a mudjacking repair lasts between five and 10 years, though it can sometimes last for well beyond a decade under ideal conditions. Its longevity depends heavily on several factors, including the condition of the underlying soil, environmental conditions like freeze/thaw cycles and erosion, and whether the root cause of the sinking, such as drainage issues, is resolved. Because it doesn't always fix the underlying problem of loose soil, mudjacking is often considered a temporary solution. Proper maintenance and evaluation can help extend its lifespan.

Mudjacking restores level surfaces, prevents further damage, and is more cost-effective than a full replacement.

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

The Saint John, WA homeowners’ guide to concrete mudjacking services

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

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