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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon52
    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

"They were good. Matt was our inspector. We needed to get an inspection done on a new home and they came out with little notice and gave us a great breakdown and report. We are looking to hire them for the foundation repairs so I will let you know how the service goes beyond the inspection!"
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Concrete Foundation - RepairFoundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation+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%
10 neighbors recently requested a quote
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

"Their service and quality was top notch. After having various companies come out to try to repair a tricky foundation problem, Golden Retrofit did it without issue. Very happy with their work."
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%
21 neighbors recently requested a quote
Avatar for MVP Remodeling
MVP Remodeling
5.0(
53
)
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

3 neighbors recently requested a quote
Recommended by89%of homeowners
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

"Paramount Pavers and Construction's team are Amazing, an absolute "10"in every stage of our project from the beginning first phone call to the last day. They were extremely respectful, and always took the time to answer all of my questions, and offered good suggestions when I couldn't decide on the color. They cleaned up the project site every day, they even compacted and leveled out the dirt in front of the ADU, which wasn't even part of project, but it sure made it look better. Along with the beautiful paver driveway and walkways, there was repair and detail work I needed to be done on my block wall and around my front porch, it was also done beautifully. I can't say enough about them, they are the most professional, knowledgeable, kind, patient, and hard-working contractors I have ever worked with, and after being married to a contractor for almost forty-years, I have worked with a lot, but Rudy, Issac, and their team led by Jose are Number 1!"
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
9 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

Yes, you can replace a cinder block foundation. If a block foundation is too severely damaged to repair cracks and other issues, replacing the entire foundation is a viable option. The job will require a professional and can take between one to seven days on average to complete, depending on how complex the problem is.

Addressing gaps and cracks reduces heat loss and improves energy use.

The average home foundation lasts between 80 and 100 years, but some can last much longer with proper maintenance and routine inspections. The lifespan depends on the foundation type, soil conditions, climate, and construction quality. Poured concrete walls can last up to 200 years, brick or stone foundations over 100 years, cement block foundations 80 to 100 years, and pier foundations about 75 years. Factors that can shorten a foundation's life include expansive clay soil, poor weather conditions, low-quality building materials, improper construction, and tree roots. Signs of damage include sloping floors, bowing walls, cracks, and doors or windows that stick.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

Concrete pools are very durable but can crack if not properly maintained. The most significant risk is winter weather and low temperatures when water can seep into crevices and freeze. To avoid damage, use the proper winterization chemicals, and don’t completely drain your pool. Concrete pool repairs cost around $75 per linear foot for small cracks.

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.