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Best foundation repair specialists near Sunriver, OR

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Top-Rated Foundation repair specialists in Sunriver - Updated Nov 2026

Avatar for Ram Jack West
Ram Jack West
4.7(
75
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Sunriver, OR and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I'm finally getting around to writing a review, although the work happened awhile ago. When we noticed cracking in the walls at our house, we found three companies to call. I decided to hire the second company because they could do waterproofing in addition to structural repairs. I sure regret that decision! If I had called Ram Jack before hiring the other company, I would have been spared a two-year ordeal and the loss of thousands of dollars. Instead, I ended up calling Ram Jack for a second opinion, after problems developed with the other company. Curt and Ken (the owner) came to do an assessment of our house. They were thorough and looked at the whole picture to determine what issues needed to be addressed, rather than just trying to sell their products and services. Their only recommendations were to replace a rotting support post in the basement and to direct water away from the foundation. When I told Ken what the other company had recommended and that most of the work had already been completed, he seemed shocked but did not use this as an opportunity to trash his competitor. Other people who looked at our house were not as charitable! I think this says a lot about Ken's character. The one recommendation from the other company that I thought might be justified was to pier a corner of the house that had settled about two inches. I was ready to sign off on this work but Ken strongly discouraged me from doing it, explaining that it was purely a cosmetic issue and that future settling was extremely unlikely because the water issue had been taken care of. He told me to at least wait a year and reassess the situation, turning down what would have been a 15-20 thousand dollar job. What I did end up hiring Ram Jack to do, was to correct the problems caused by the other contractor and to get everything up to code. The City scrutinized all of the work done at our house because it was not up to code and the other company did not obtain the proper permits. Ken was willing to collaborate with an engineer and carpenter to get the job done at the lowest cost to me. Although some of the damage caused by the other company could not be remedied, I think he got the best results possible without doing more extensive repairs. Everyone I had contact with at Ram Jack was wonderful. They even offered to haul away debris left from a previous job. I sure appreciate Ken's willingness to take on a relatively small job and to step in and fix someone else's work; many companies are not willing to do that. If I ever have a need for structural repairs in the future, Ram Jack will be my FIRST phone call. I highly recommend this company."
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+10

Response time1 day
Response rate100%
Recommended by96%of homeowners
Avatar for Central Oregon Excavation, LLC
Central Oregon Excavation, LLC
4.3(
66
)
Foundation Drainage - Install or Replace

Serving Sunriver, OR and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"The owner, Bill, sent two of his workers out to grade and gravel out driveway. Bill did come back out the next day to fix some of the shortcomings. The driveway looked good when he was done, but they left a large hole in the yard he said we could fill it up with large rock. We don't have the equipment to move large rocks. Most importantly, we started this project to divert water away from our carport, but after it rained the water ran through the carport. My wife is not happy."
Yard install
Yard grading and sloping
Land clearing
Driveway
Grading

+1

Response time2 days
11 neighbors recently requested a quote
Recommended by79%of homeowners
C&H AG AND EARTHWORKS LLC
New to Angi
Foundation Drainage - Install or Replace

Serving Sunriver, OR and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

2 neighbors recently requested a quote
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
5.0(
11
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Sunriver, OR and surrounding areas

In business since 2005

Free estimates

Warranties offered

"Being on the coast and close to wetlands, there is a ton of water accumulation in my crawlspace. Terra Firma had a ton of work to dig out the drainage trenches but they did a wonderful job! They had a large crew that tackled different projects to get it all done in 1 day. Everyone was professional and very friendly. I will definitely use them again for my continual foundation improvements."
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+11

Response time7 hrs
Recommended by70%of homeowners
Avatar for John's Waterproofing
John's Waterproofing
4.3(
252
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Sunriver, OR and surrounding areas

In business since 1974

Free estimates

Warranties offered

"I was glad John's Waterproofing was recommended to me to resolve the serious water problem in my large crawl space. With Jake's Design and Jeremy's remarkable crew, who were able to efficiently perform the many tasks needed to fix the problem, I now have a dry, clean and healthier crawl space under my home. Thanks to John's superb 5 star Company! Virginia Rossman"
Trim around fireplace was removed and mold found along the base
Fiberglass was drooping away from the home, removing its insulation value
Fiberglass Insulation was falling down in clumps from water weight
This window had been upgraded and given trim to give a clean and finished look
Re removed the below-grade sections of the wall and waterproofed with ThermalDry Radiant vapor barrier and installed a drain system around the interior perimeter

+41

Response time9 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for NW Builders & Renovation
NW Builders & Renovation
4.0(
156
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Sunriver, OR and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"James and his team evaluated my roof, discovered the problem, and fixed it. In addition, he informed me on potential repair locations. I had been attempting to have my roof fixed but had received no response from other contractors. I'm very glad I chose NW Builders, and I recommend them to anybody in need of roof repair."
Deck and Gazebo
Deck and Gazebo
Deck and Gazebo
Deck and Gazebo
Deck and Gazebo

+23

Response time5 hrs
Response rate94%
Recommended by86%of homeowners
Avatar for Sears Home Improvement Products
Sears Home Improvement Products
3.7(
1,712
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sunriver, OR and surrounding areas

In business since 1886

Free estimates

Credit card accepted

"We paid a lot bu they were amazing, just outstanding. We had one small problem and they were back immediately and fixed, and they came out again actually to make sure it was good. We were gone and they waited for us to get home to looked at it and check it. It was pricy. You can get back to the and you can find them. We thought it was worth it."
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Recommended by74%of homeowners
Avatar for Mid Valley Building LLC
Mid Valley Building LLC
3.6(
47
)
Poured Concrete Wall - Repair

Serving Sunriver, OR and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"They had to come back to repair a couple of the leaks they had previously repaired. This time  it was the owner who showed up.This time he stated that we needed a new roof at a pretty considerable cost.I think it wad probably a fair estimate but unable to afford it at this time."
Chesire Home
Eugene Roof
Exposed Aggragate
Paul's Job
Kevin's Job

+5

Recommended by75%of homeowners
Showing 1-10 of 21
Foundation Repair FAQs, answered by experts

Concrete can crack from general wear, improper installation, or in response to uneven support from the soil underneath. Small, thin cracks on the surface of aging concrete are usually a result of normal wear and tear, while cracks on new concrete more likely indicate a problem with installation. Larger cracks or uneven steps can signify a much more severe issue. A concrete contractor should be able to diagnose the cause and repair concrete cracks for you.

Homeowners insurance doesn’t usually cover a sinking foundation. While insurance will cover some kinds of foundation damage, coverage is usually limited to damage from natural disasters, fire, or impact. Foundation sinking is rarely covered by insurance, so it’s a good idea to make repairs early on to avoid costly problems in the future.

Some foundation repairs are permanent, like underpinning and exterior drainage systems like the French drain. These fixes address the underlying problems—insufficient support from the soil and hydrostatic pressure on your foundation walls, respectively—so they can last for many decades, making them “lifetime fixes.” There are other solutions to address these issues that will last for up to a decade, making them temporary. These include slabjacking to raise concrete slabs back into place and dampproofing to reduce the water in the soil that interacts with the concrete foundation.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

Underpinning is a specific type of foundation repair where a specialist installs deep piers under a foundation to provide additional support. This method is often used when the soil beneath the foundation can no longer evenly support the structure. Foundation repair is an umbrella term that includes many methods. Besides underpinning, other common repairs include foundation crack repair, waterproofing, cosmetic repairs, and concrete block wall stabilization. Often, underpinning is accompanied by other work to address the root cause of the foundation issue, such as regrading the yard to ensure water drains away from the house.

The Sunriver, OR homeowners’ guide to foundation repairs

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