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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon51
    Verified foundation repairs reviews

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

Avatar for The Foundation Works
The Foundation Works
4.9(
216
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Altadena, CA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"From start to finish our experience with Foundation Works was top notch. We did contract them to bolt the foundation on our 1921 Spanish Bungalow home and repair some minor foundation cracks in a 1950's addition. Prior to calling Foundation Works we had two other estimates for work, one was in line with the quote provided by Foundation Works and one was higher with a few additions to the work. So I would say their price was in parity with others. Myron did our initial inspection and spent a lot of time crawling around under our home and doing a very detailed inspection. He spent a long time sitting with us afterwards discussing what he discovered and what he recommended. He was very patient with our many questions. When we tried to add some additional work reinforcing what looked like some long term slippage on the peers under the house he carefully informed us of the history of how houses like ours were built and why we did not need to spend more money doing this repair as it wasn't slippage but rather just how it was built. Once we accepted the bid FW was able to start work quickly. They worked cleanly and while they don't clean up every day before going home they also don't leave a bad mess and the work was all in the backyard so a few piles of tools was not a big deal at all and was painless. The team that did our work was professional, friendly, and efficient. When we had questions they were always there to answer. When we had one (very small) issue related to the nails originally used in the 1920s to hold the corner floorboards in which had jumped up a bit due to the installation of blocks needed to support the bolting in a few places, they stopped work, immediately fixed the issue and adjusted how they worked so it didn't happen again. When the work was done you wouldn't even have known they were here. The yard and all entry points to the crawl space were spotless. The Burbank city inspection was a few days later, they handled it completely and we never needed to worry about a thing until they handed us approvals. The back office and payment process was professional, pleasant, and very low touch. I can't recommend this company more highly."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - Raise+1 more

Serving Altadena, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for MVP Remodeling
MVP Remodeling
5.0(
48
)
Concrete Foundation - Repair

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"If you are looking for a company that actually answers the phone, shows up on time, and does the job as promised, give these guys a call. MVP Remodeling is without a doubt one of the best contractors in Los Angeles. Josef had our home painted (interior and exterior), Repair foundation, window, replacement, and Solar installed! Highly recommend"
Pavers and Hardscaping Project
Roofing Project
Landscaping Project
Earthquake Retrofitting Project
Foundation Repair Project

+175

2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Golden Retrofit
Golden Retrofit
5.0(
92
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"My home is a bit older and needed the foundation repaired, I put it off for a while because of the price of the project but Jordan came to our home and gave us a great rate and I am very pleased with his services."
Earthquake Retrofit with Cripple wall
Earthquake Retrofit with Cripple wall
Earthquake Retrofit witjh Cripple wall
Earthquake Retrofit with Cripple wall
Earthquake Retrofit with Cripple wall

+27

Response time6 hrs
Response rate98%
25 neighbors recently requested a quote
Avatar for Paramount Pavers & Construction
Paramount Pavers & Construction
4.9(
225
)
Poured Concrete Wall - Repair

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"This company is amazing. from workmanship,knowledge,friendly and efficiency ! they cleaned up as no one was ever here! my husband and i are so satisfied with the block wall and pavers would HIGHLY recommend there services."
Remodeling - General Project
Pavers and pool coping
Hardscape and remodeling
Remodeling - General Project
Excavated and removed old deck and installed traditional gray pavers. By Belgard.

+59

Response time10 hrs
10 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Our kitchen remodel with McCormick Home Builders went beyond our expectations. Leoni and her team took the time to understand exactly what we wanted. The open layout design changed the way we use the space, and it’s been perfect for family gatherings. They were prompt, courteous, and genuinely invested in making sure we were happy. Really impressed!"
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for Just Stamping Concrete
Just Stamping Concrete
5.0(
28
)
Concrete Foundation - RaiseConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Altadena, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

With over three decades of experience Just Stamping Concrete, Inc are second generation contractors that will work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

Concrete
Response time2 hrs
Response rate100%
3 neighbors recently requested a quote
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Foundation Repair FAQs, answered by experts

Always hire a foundation repair contractor the moment you suspect your house doesn't have a good foundation. The longer you wait to address foundation issues, the more likely they can lead to bowing floors, cracks in walls and ceilings, sticking doors and windows, chimney and roof problems, and more. Foundation problems can also let moisture into your home, leading to water damage, mold, and mildew problems.

The foundation repair that will work best varies based on the extent of the damage, the underlying cause, soil conditions, weather conditions, and more. Permanent foundation solutions like underpinning and exterior drainage solutions are better than temporary fixes that don’t address the source of the issue. Some examples of more temporary solutions include mudjacking or slabjacking, waterproof paint, and dampproofing. The best course of action is to have a reliable foundation specialist inspect your issue, treat the underlying problem, and restabilize your foundation.

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.

There are a few ways to reinforce a pier and beam foundation, including installing additional piers and beams for added support and performing underpinning, which redistributes the weight of your home further down into the ground where frost and soil expansion don’t pose a threat to the foundation. The best option for reinforcement varies based on your particular home and the soil conditions beneath it.

Cement companies offer a wide variety of services, including delivering and pouring concrete for home foundations, walkways, patios, driveways, concrete steps, pools, pool decks, and more, plus concrete repair and patching. Most companies also have the ability to demolish and haul away old concrete landscaping features. It’s a good idea to reach out to a few different companies before hiring to make sure you choose one that can tackle the entirety of the project you have from start to finish. This method will typically save you some money over hiring multiple contractors.

The Altadena, CA homeowners’ guide to foundation repairs

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