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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified foundation repairs reviews

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

Avatar for Concrete Innovations, Inc.
Concrete Innovations, Inc.
4.7(
44
)
Concrete Foundation - RepairPoured Concrete Wall - Repair

Serving Sonora, CA and surrounding areas

Approved

In business since 1978

Free estimates

Small jobs welcome

"They did a fantastic job on excavating footings and pouring for a 26 ft retaining wall tied into the existing foundation, a pier for support post, and a large 350 sqft slab! I highly recommend Richard and Michael for your project!"
Driveway Stain
Carved Concrete
Seamless Stamped
Slate Stamp
Stained Driveway

+10

Response time2 days
Response rate87%
39 neighbors recently requested a quote
Palm Construction, Inc.
5.0(
112
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sonora, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

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.

Recommended by100%of homeowners
Avatar for Clear Horizon Home Solutions, Inc.
Clear Horizon Home Solutions, Inc.
4.3(
214
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Sonora, CA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"It was an amazing experience. I dont think there is a better company I could have picked for this job. The contractor was really professional and made me feel comfortable the entire time. They also made me feel part of the project which was awesome they let me get involved as much as I wanted which made this whole thing even better and more enjoyable. They also didnt get frustrated with me at all which i know can be hard at times because I know I can be difficult when it comes to having things how i want them. Thank you for a wonderful service !!"
1
2
3
Kitchen Remodels
2

+2

Recommended by82%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Sonora, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
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+32

Recommended by100%of homeowners
Honest Handyman
4.6(
89
)
Poured Concrete Wall - Repair

Serving Sonora, CA and surrounding areas

Free estimates

Emergency services offered

"Joshua has done a lot of work for us over the last year - from replacing blinds to fixing faucets, toilets and installing light fixtures, smoke alarms, shower fixtures, etc.  His work is always excellent!  He is very prompt, reliable, and does a thorough job.  I was thrilled to find such a great handyman since we had to move and rent out our house.  The only problem is that his schedule is very busy because he's so good!!
"
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Recommended by96%of homeowners
Avatar for Ultimate Concrete Inc
Ultimate Concrete Inc
4.6(
55
)
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Sonora, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Dan came out right away and gave an estimate on replacing our 2 car driveway. We decided to expand the side yard to make a 4 car driveway, and he accommodated the day of the start of work. Gave us an awesome price! He and his son were here 3 days, and finished everything. They are clean, professional and friendly. I would recommend Ultimate Concrete to anyone! They do other types of work as well. Thank you Dan!"
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+5

Recommended by100%of homeowners
DTRDesign and Construction
5.0(
3
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Sonora, CA and surrounding areas

In business since 1990

Free estimates

"Now let me rave about Dave... He was on time if not early, he is a man that can do what he says and does it really fast. The deck repair was above and beyond what we expected. We wanted it it safe and up to code, he made it a work of art. He was knowledgeable of everything we threw at him.  He repaired the window glass so we didn't have to buy a whole new window, squeezed a dishwasher in a tiny kitchen (husband must have dishwasher), did the insulation and did the water shut off replacement. He works quickly and cleanly too, we could not even tell there was work being done. We are so pleased and yes we would hire him again in a heartbeat."
Recommended by100%of homeowners
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Foundation Repair FAQs, answered by experts

Yes, slab foundations can sink just like any other foundation type. Floating slabs are the most prone to differential settlement and foundation sinking because they sit directly on the surface of the earth. Slab foundations that have footings—including slab-on-grade foundations and monolithic slab foundations—get additional support from soil further down and are less likely to sink over time, especially under larger, heavier structures.

Yes, all basement floors crack in response to the natural settlement of the soil around them and from concrete shrinkage as it cures, and you’ll see hairline cracks as a result. However, you should keep an eye on your basement floor to see if cracks continue to lengthen or widen or show signs of water intrusion. In any of these cases, the problem is likely not settling or shrinkage, and a professional repair is necessary.

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

A sinking foundation can be lifted, most often by installing piers to re-level and support the weight of the house. Depending on the cause and extent of the sinking, other methods to lift a foundation include underpinning and mudjacking. Consult a foundation repair pro to determine the best way to lift your sinking foundation. 

Barring extreme home foundation problems, most horizontal foundation cracks are fixable using one or more methods. Most of the repair methods require professional expertise to accomplish, and include plate anchors, steel reinforcement, soil anchors, reconstruction, or carbon fiber strip applications. Contacting a professional to diagnose the problem early can minimize repair expenses.

The Sonora, CA homeowners’ guide to foundation repairs

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