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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

"Dan was here this morning, showed him where water was leaking in over our slab and ruining the flooring in the master bedroom. He gave me the full range of possible remedies, from installing a eaves gutter on the roofline outside the bedroom to a full (very expensive) sealing of the entire exterior foundation. And actually recommended that we start with the gutter (which I can do myself) and then monitor the area next rainy season and see if that fixes the problem. No pressure to hire them or spend big $$, just good advice. Couldn't have asked for more. Highly recommended- this is real service!"
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 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

"I am very pleased with golden retrofit and foundation repairs work. Tom did a great job working through the process with us. They repaired our foundation within 4 days and the work passed inspection on first try. Thanks golden!"
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%
24 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

"After finding a crack in my drywall I searched for a contractor to inspect my foundation. I spoke with Maya in the office who was pleasant and helpful setting up a meeting. I'm glad I called as after the inspection I learned my home's foundation had deteriorated and I needed repair. Joseph started the project right away and completed my foundation within the time frame agreed. I would definitely use MVP again!"
Pavers and Hardscaping Project
Roofing Project
Landscaping Project
Earthquake Retrofitting Project
Foundation Repair Project

+175

5 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Saber
Saber
3.6(
148
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - Raise

Serving Altadena, CA and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"Would not recommend these people for foundation repair. My appointments were rescheduled 2 times with little to no communication. Took time off of work to be home for the installation and canceled on me that morning. Work quality was ok but definitely too expensive."
REIG Operation Renovation
REIG Operation Renovation
REIG Operation Renovation
REIG Operation Renovation
REIG Operation Renovation

+35

Response time1 day
6 neighbors recently requested a quote
Recommended by75%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

"Very professional paving job on my walkway and driveway. Job was finished at market price and within a week timeframe. Communication very good with project manager. Would recommend company. Had to hire an additional contractor to repair the adjoining damaged concrete sidewalk to the driveway."
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

"After dealing with frequent roof repairs, we finally decided on a complete replacement for our Livermore home. Avi kept us informed every step of the way, and the finished roof exceeded our expectations. It's made a noticeable difference during hot summer days."
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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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Showing 1-10 of 261
Foundation Repair FAQs, answered by experts

Foundation problems are costly to repair, but if you already own the home, you can either handle the issues or allow the property to (literally) sink into disrepair. The opposite is true when buying a home. Walk away if the seller refuses to lower the asking price once foundation issues are exposed or if they refuse to handle the problems before the completion of the sale.

If your foundation repair claim gets denied, the first step is to carefully read over your policy and denial letter so you understand the reason for the denial. Then, gather evidence and documents that can support your case and appeal the denial with your insurance company. If your insurer does not eventually honor your claim, you may want to file a complaint with the insurance department in your state. In some cases, it may make sense to work with an attorney and file a lawsuit.

Foundation repair uses methods such as underpinning, slab jacking, or application of hydraulic piers. Each technique is chosen based on structural needs, soil conditions, and damage extent, ensuring a stable and secure foundation.

Crumbling concrete steps will affect your ability to drill into the material and affix a sturdy railing. If the damage is primarily cosmetic, you might be able to DIY the repair with a patch kit. If the concrete is badly crumbling, hire a professional who specializes in pouring concrete. The average concrete step repair cost is $500 from a professional, but the extent of the damage will determine your actual cost. The professional may recommend a replacement if the damage is extensive.

Signs of structural damage include foundation cracks, roof leaks, bouncy floors, crumbling concrete, and cracked or leaning chimneys. Structural damage can make itself apparent in various ways, and sometimes, there may not be obvious signs. Inspect your foundation and roof annually to stay ahead of potentially serious structural problems. 

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.