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Find Engineer structural pros in Altadena

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.8(
147
)

Serving Altadena, CA and surrounding areas

Angi Approved

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

+315

Response time10 hrs
Response rate96%
37 neighbors recently requested a quote
Avatar for Alpha Omega
Alpha Omega
4.6(
76
)

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 2003

Free estimates

Small jobs welcome

"After initial consultation by phone we quickly scheduled an appointment. The construction engineer came in 2 days, reviewed our project and provided supporting documentation for our needs. Highly recommend!"
Plot Plan for Auto Dealer
Auto Body Shop
Response time10 hrs
Response rate86%
70 neighbors recently requested a quote
Avatar for Amitygale Design
Amitygale Design
5.0(
5
)

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 2019

Free estimates

Credit card accepted

"I hired AmityGale for my structural engineering home remodel project. I was very pleased with the professionalism and communication . Pricing was competitive and I will definitely recommend them. Thanks again for making this a smooth process in what could have been a stressful experience."
Response time2 days
Response rate91%
3 neighbors recently requested a quote
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 2018

Offers commercial services

Customers say: Quick response

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"
Slab On Grade - Carport
Foundation Underpinning
Existing Wall
Existing Wall/ Form Work
FOundation Underpinning

+15

Response time8 hrs
Recommended by100%of homeowners
CCD - Engineering and Design
4.3(
14
)

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 1986

Free estimates

Offers commercial services

"Miguel is an amazing structural engineer and architect! He did the remodeling plans for our townhome in Marina Del Rey and we were very satisfied. Our HOA gave us a lot of trouble with our plans and they constantly needed to be revised and Miguel revised them speedily and efficiently. He was also very professional and patient with all of our changing needs. He explained things in a calm and informative way so we can fully understand what we can and can't do. He's extremely knowledgeable of city codes and policies. Highly recommended! Thanks Miguel!"
Response time2 days
2 neighbors recently requested a quote
Recommended by71%of homeowners
Terra Nova Engineering & Design LLC
5.0(
1
)

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 2024

Free estimates

Credit card accepted

"He consulted on the project and gave very valuable information and advice that would ensure that my project was safe and up to code. He was quick to arrange a visit to my site where he immediately surveyed the work - you could see his mind actively engaged😊. He is very professional, personable, and he listens intently, and communicates at a level I could understand. I highly recommend him to diyers and pros alike. Louie"
1 neighbors recently requested a quote
Avatar for Standley Structural Design
Standley Structural Design
New to Angi

Serving Altadena, CA and surrounding areas

Angi Approved

In business since 2014

We are a Los Angeles based structural design team of qualified and licensed Civil Engineers. We can assist you in effective assessment and design whether your home is in need of repairs, you are looking to renovate or build an addition, or you are looking to build a new home from scratch. We serve the entire state of California. We have years of experience working directly with contractors, and know that the most important thing we can do is design efficient, easy to construct systems, and get them back to you in a workable amount of time. We pride ourselves in thorough and effective designs returned to you in time so as not to delay your projects. We have aided in the design and safe implementation of thousands of residential and commercial solar (photovoltaic) electrical systems, and are proud to be doing our part for cleaner air, and a healthier earth. If you are a solar contractor, we can help you too!

6 neighbors recently requested a quote
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FAQs for engineer structural projects in Altadena, CA

To determine if a wall is load-bearing, start by checking your home’s original plans or asking a structural engineer. Exterior walls always carry weight, but interior ones only do if they sit over a beam or run perpendicular to floor joists. If a wall lines up with posts in the basement or falls directly under the roof ridge, assume it’s load-bearing and call a professional before attempting to remove it with a sledgehammer.

Calculating the wall load and sizing the beam must be performed by experts to ensure structural safety. You need a structural engineer to evaluate all load aspects and determine the proper beam dimensions. A professional engineer performs precise calculations and advises on any necessary enhancements, such as larger footings for support. An inspector then verifies that the revised structure meets all safety and code regulations before the finishing work begins.

Hiring a structural engineer is essential for ensuring your home remains structurally sound during any major renovation. Their responsibility is to deliver expert assessments and design recommendations for load-bearing modifications. The average cost to hire a structural engineer is $500, with rates ranging from $350 to $800. Consulting a licensed, experienced engineer guarantees that every structural project, whether constructing a new home or remodeling an existing one, is completed safely and efficiently.

Almost all load-bearing wall removals require a permit as they support everything above it, and building departments want proof that the new beam can handle the weight. Pulling a permit triggers plan review and inspections that confirm the work meets local code and safety standards. Skipping this step can lead to fines or being forced to rebuild later, so have your contractor pull the permit before work starts.

Removing a load-bearing wall to create an entrance for a carport or covered patio is a task that comes with defined cost implications. This modification requires extra structural adjustments to ensure safety and proper integration with the adjoining space. When you convert a wall into an entryway, you can expect to pay between $3,200 and $9,500, with an average cost of $6,400. The additional work required for this conversion reinforces the home’s integrity and ensures compliance with applicable building codes.

The Altadena, CA homeowners’ guide to engineer structurals

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