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

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Concrete Foundation - Repair

Serving Walnut, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Alpha was professional and efficient in getting our earthquake retrofit done and they knew how to work with the earthquake brace+bolt program smoothly. We were very pleased with their work and would recommend them."
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
AJB Concrete & Masonry Construction
5.0(
19
)

Serving Walnut, CA and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

"AJB Construction did a great job. Workers were knowable in all areas of the work performed. Work site was cleaned up at the end of each day, project was started and completed as proposed. I would highly recommend AJB for any concrete or block work needed."
Masonry Project
Driveways - Concrete Project
Masonry Project
Concrete - Pouring & Repair Project
Concrete - Pouring & Repair Project

+48

Response time1 day
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Green Republic Landscape Design Services
Green Republic Landscape Design Services
4.6(
52
)

Serving Walnut, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Our backyard was in need of a redo: We struggled to grow grass, and we wanted a space that would accommodate a trampoline and a small garden, as well as a dining table and sitting area, but still feel green and lush. After meeting with a few landscapers who suggested we get rid of the trampoline, rip up our existing brick patio and put pavers everywhere, we met Alisa from Motti's team. As a landscape designer, she really listened to what we wanted, and had great ideas for how to incorporate it all, as well as suggestions for garden planters and furniture. A week after our meeting, we got detailed plans that showed us just what the yard would look like, as well as what plants would look and work best. We then worked with Motti to tweak the plans, finalize the budget, and pick out materials, etc., and we were able to schedule the project within a few weeks time. Once the job started, Motti's team of workers were professional and efficient, and Motti stopped by daily to check the progress. Our backyard is now a true extension of our living space, and it's welcoming to kids and adults. A great big thanks to Motti and his team!"
Formosa Project
Linda Flora
Allot Ave
Oak Meadow Ln.
Lake Hollywood

+264

Response time4 days
Response rate100%
6 neighbors recently requested a quote
Avatar for Robert A. Garcia Concrete
Robert A. Garcia Concrete
4.8(
64
)

Serving Walnut, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Robert was outstanding! He?s a great communicator - and was attentive to our needs throughout the project. Over three mornings, he removed portions of our old back patio, repaired parts of the remaining concrete, then coordinating and finished the replacement of concrete for a slightly smaller patio. He made sure everything was completed in a timely manner, managed some cost adjustments and made sure to keep the area clean and organized. Exactly what we asked for! We would hire him again!"
Response time9 hrs
Response rate88%
Recommended by85%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Concrete Foundation - Repair

Serving Walnut, 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
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