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TRUSTED BY CLACKAMAS, OR HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon136
    Verified house leveling services reviews

Top-Rated House leveling pros in Clackamas - Updated Nov 2026

Avatar for Ram Jack West - Portland
Ram Jack West - Portland
4.7(
69
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Clackamas, OR and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"We have a cabin on the Northern Oregon coast which rests at the edge of a steep hill. Over the years, we noticed some settling with sloping floors, sticking doors, and a foundation crack. We called Ram Jack West after the local foundation expert in Clatsop County failed to follow up on a promised bid. We are grateful for that lapse because the folks at Ram Jack West were exceptional in the service they provided us, start-to-finish. From the office staff and estimator to the engineer and the team who set the pilings and raised the house in its low spots, we were kept apprised of each step. Communication was excellent. The engineering that goes into a project like this boggles my mind, but everyone we worked with was so confident and knowledgeable, any anxiety I had disappeared fast. We are so thrilled with the top-notch service Ram Jack West provided us and recommend them enthusiastically."
Response time4 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
915
)
Concrete Foundation - RepairConcrete Foundation - RaiseConcrete - Injection Leveling - Mudjacking+1 more

Serving Clackamas, OR and surrounding areas

Approved (Corporate)

In business since 2021

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement
Basement
Basement
Concrete
Concrete

+20

8 neighbors recently requested a quote
Recommended by93%of homeowners
Patrick Masonry & Concrete
4.6(
106
)
Concrete - Injection Leveling - MudjackingConcrete Foundation - RaiseConcrete - Injection Leveling - Mudjacking - For Business+1 more

Serving Clackamas, OR and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"I had some concrete work done a couple years ago, replacing the entire length of sidewalk in front of my house including the cover over the water main, the driveway, and some front walkway. The concrete still looks good and these guys did it right."
Concrete stamp
 Concrete
Concrete
Concrete
 Concrete

+27

Response time6 days
6 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for TerraFirma
TerraFirma
4.1(
100
)
Concrete - Injection Leveling - MudjackingConcrete Foundation - RepairConcrete - Injection Leveling - Mudjacking - For Business

Serving Clackamas, OR and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I have had two issues since they installed the new sump pump and irrigation. Issue number one was water still getting passed the new concrete. The other issue is that the new concrete was not level at all which has caused issues with the new flooring I installed. However, their customer service is top notch and will work hard to take care of you."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time10 mins
Response rate100%
114 neighbors recently requested a quote
Avatar for Concrete By Design
Concrete By Design
4.9(
20
)
Concrete - Injection Leveling - Mudjacking - For Business

Serving Clackamas, OR and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I hired â Concrete by Designâ to complete the first of 3 phases and because they were on time and did a great job, I will continue using them throughout my project. I highly recommend that you consider George and his crew if you need any concrete work done. Even when weather didnâ t co-operate they rebounded very quickly and stayed on schedule"
Wood stamp patio
Colored concrete stamped
Stamp walkway
Random slate stamp
Slate stamp

+8

Response time5 hrs
Response rate90%
13 neighbors recently requested a quote
4-Belt Concrete & Masonry, LLC
4.4(
60
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Clackamas, OR and surrounding areas

Approved

Super Service Award Winner

Customers say: True professional

"Very smoothly. Mulli helped with me the permitting process and they did everything they said they would do when they said they'd do it. Cost was very reasonable. I definitely recommend."
Driveways - Concrete Project
Driveways - Concrete Project
Additional Photos
Additional Photos
Additional Photos

+22

Response time1 day
Response rate100%
1 neighbors recently requested a quote
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House Leveling FAQs, 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 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.

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.

Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.

Polyjacking and mudjacking can both be effective solutions for sinking concrete, but they have key differences. Polyjacking, which uses expanding polyurethane foam, is often considered a better option because the foam is significantly lighter than the cementitious material used for mudjacking. This reduced weight puts less pressure on the underlying soil and lowers the risk of future sinking. Polyjacking is suitable for any sinking concrete slab, while mudjacking is typically only recommended for non-structural concrete, such as sidewalks, patios, pool decks, and driveways. The primary drawback of polyjacking is its cost, which can be up to four times higher than mudjacking—as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.

Most projects take 1-3 hours, with immediate usability after completion.

The Clackamas, OR homeowners’ guide to house leveling services

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