Altadena, CA Los Angeles County

Foundation repair, concrete repair and crawl space repair in Altadena, CA

Altadena has about 14,768 households and 13,643 detached single family homes, and Foundation, concrete and crawl space repair is what we are called out for here. The crew comes from our Westlake Village office, about 50 minutes away.

4.9
1,000+ Google reviews
2,000+
Projects since 2011
42,719
People in Altadena
(877) 360-9227
Southern California · Arizona · Nevada Since 2011

Let's take the first step toward solid ground.

A local specialist will evaluate your foundation, walk you through the findings, and send a clear estimate. No cost, no pressure.

Licensed Contractor
1,000+ Google Reviews
CA Lic. #983851 · AZ ROC #330307 · NV Lic. #0089738

Westlake Village office

2945 Townsgate Rd STE 200

Westlake Village, CA 91361

Hours

Monday to Friday, 7:00 AM to 6:30 PM

Getting to you

About 50 minutes from the office, 39 miles.

About Altadena

Altadena in numbers

Altadena sits in Los Angeles County, California. Census figures put the town at about 42,719 residents and 14,768 households. 76 percent of occupied homes are owner occupied, and 13,643 of them are detached single family houses.

The crew that covers Altadena works out of our Westlake Village office, 39 miles away, about 50 minutes on the road. Countywide, Los Angeles County holds 1,726,365 detached single family homes and runs 46 percent owner occupied. Los Angeles County as a whole is about 9,848,406 people and 3,624,084 housing units. Building peaked before 1940 at 5,906 homes, which is why the median year built sits at 1945. The survey reports a median home value of $991,200 and a median household income of $123,869. The split is 11,176 owner occupied to 3,592 rented. 14,065 of those homes were finished before 1980, 95 percent of everything standing.

Population and housing figures: American Community Survey, by way of the Signature Media market data set.

Local conditions

Why foundations move in Altadena

The soil, and what it does

Mapped soil inside Altadena is recorded as disturbed urban ground, so the soil series comes from the wider survey. Across Los Angeles County the USDA survey is Millsholm family at about 9 percent of the survey, with Trigo family and Rock outcrop alongside it. The texture split is 14 percent clay and 16 percent sand. Inside the Altadena city limits, the USDA sample puts weighted linear extensibility at 1.3 percent, which is the figure USDA turns into a low shrink swell rating.

The housing stock

Most of what we walk into here was built before 1940, 5,906 homes, around a median build year of 1945. Pre 1980 construction accounts for 14,065 homes here, and that is the group where original drainage is usually the story. Of the owner occupied homes, 73 percent carry a mortgage.

Soil survey: USDA NRCS Soil Data Access (SSURGO), sdmdataaccess.nrcs.usda.gov.

Around Altadena: Landmarks inside the city limits include Charles S. Farnsworth Park, Charles White Park, Loma Alta Park and The Bunny Museum. They sit between 38 and 40 miles from our Westlake Village office.

ZIP codes inside Altadena: 91001, 91103, 91104, 91107.

Google reviews

What California customers say

No complaints. Jason was very thorough in his assessment of my foundation dilemma and shared with me different solutions. He has been very patient as I weigh my decisions.
MichaelAugust 2026via Google
Making an appointment to have someone come out was super easy and took virtually no time at all. Two weeks later, Brian came out and took measurements and walked me through their process. He explained everything and was done in less than half an hour. He also had a proposal done and sent to me before the end of the day. If you need this type of work done, definitely give them a call.
ScottJuly 2026via Google
Thanks to Dillon and crew from Dalinghaus for doing a great job with the foundation lift. I would definitely call these back for any future work that is needed.
nickNovember 2025via Google

The crew

Some of the crew members who work on jobs like yours

Jose Guerrero, Project Specialist
Jose Guerrero
Project Specialist
Matthew Valls, Project Manager
Matthew Valls
Project Manager
Tom Bartholomew, Project Design Specialist, CA
Tom Bartholomew
Project Design Specialist, CA
Joe Delgado, Foreman
Joe Delgado
Foreman
Mark Sebastian, Apprentice
Mark Sebastian
Apprentice
Thomas Toledo, Project Manager
Thomas Toledo
Project Manager

The same company schedules the evaluation, runs the install, and answers a warranty call later.

Westlake Village office

Where the crew comes from

Our Westlake Village office covers this town. It is 39 miles from the middle of it, about 50 minutes. You will find it at 2945 Townsgate Rd STE 200, Westlake Village, CA 91361.

  • 2945 Townsgate Rd STE 200, Westlake Village, CA 91361
  • (877) 360-9227
  • Monday to Friday, 7:00 AM to 6:30 PM
Dalinghaus Foundation Repair
Westlake Village office
2945 Townsgate Rd STE 200, Westlake Village, CA 91361
Dispatching crews across Los Angeles County
Altadena questions

What Altadena homeowners ask

Don't see your question here? Our team is happy to help. Reach out anytime.

Altadena is worked out of our Westlake Village, CA office. It is 39 miles from the middle of town, about 50 minutes on the road. The office is at 2945 Townsgate Rd STE 200, Westlake Village, CA 91361.

Get a free evaluation. We will come and look.

A Dalinghaus specialist evaluates your foundation in Altadena, takes floor elevation measurements, walks you through what they found, and sends a clear itemized repair estimate. No pressure.

(877) 360-9227
Why Choose Dalinghaus

Care and expertise from a team that's been doing this since 2011.

Dalinghaus Foundation Repair is locally owned and operated, with crews dedicated exclusively to foundation, concrete, and crawl space work across California, Arizona, and Nevada.

01
Specialized expertise.

Foundation repair, concrete leveling, and crawl space repair are our entire focus. Not a sideline.

02
Locally owned since 2011.

More than 2,000 projects on the clay and desert soils of California, Arizona, and Nevada since 2011.

03
Licensed in California, Arizona and Nevada.

CSLB License #983851 in California, ROC #330307 in Arizona, and License #0089738 in Nevada. Look us up with the state before we ever set foot on your property.

04
Warrantied solutions.

Warranty terms come in writing with every proposal, and the terms that apply to your job are stated in that job's paperwork. Ask your project specialist during the free evaluation.

Brian Dalinghaus, co-founder of Dalinghaus Foundation Repair
Brian Dalinghaus CO-FOUNDER · SINCE 2011
Brad Dalinghaus, co-founder of Dalinghaus Foundation Repair
Brad Dalinghaus CO-FOUNDER · SINCE 2011
Our Process

Take the first step toward a healthy home.

A straightforward path from free evaluation to completed repairs.

Step 01

Schedule your free evaluation.

A local specialist visits your home, evaluates the foundation, and answers your questions on site. No cost, no obligation.

Step 02

Receive an estimate based on your needs.

We provide a clear, written estimate with a scope of work tailored to your home's specific issues.

Step 03

Get your repairs.

Our crews complete the work on schedule, with the findings and scope in writing from the first visit.

Customer Reviews

More than 1,000 Google reviews across our offices, averaging 4.9 stars.

A 4.9-star average across Google, with verified reviews from the homeowners we work for.

Free Evaluation

Start with a free evaluation.

Share a few details and a local specialist will follow up as soon as possible to set your evaluation.

What to expect
  • A local foundation specialist on site
  • A complete walk-through of the findings
  • A clear written estimate at no cost
  • No obligation, no pressure
Prefer to call
877-360-9227
Southern California · Arizona · NevadaSince 2011
Dalinghaus Foundation Repair

Let's take the first step toward solid ground.

A local specialist will evaluate your foundation, walk you through the findings, and send a clear estimate. No cost, no pressure.

Licensed Contractor
1,000+ Google Reviews
CA Lic. #983851 · AZ ROC #330307 · NV Lic. #0089738
Southern California · Arizona · Nevada Since 2011

Let's take the first step toward solid ground.

A local specialist will evaluate your foundation, walk you through the findings, and send a clear estimate. No cost, no pressure.

Licensed Contractor
1,000+ Google Reviews
CA Lic. #983851 · AZ ROC #330307 · NV Lic. #0089738