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    Average homeowner rating
  • Verified reviews icon21
    Verified structural engineering services reviews

Find Structural engineers in Winnetka

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

4.67(
231
)
Approved Pro

Alpha Structural, Inc.

4.67(
231
)
Approved Pro
Customers say: Super punctual
195 local quotes requested
33 years of experience

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."

Robert N on September 2024

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."

Robert N on September 2024


Avatar for Eagle View Remodeling

Eagle View Remodeling

4.86(
50
)
Approved Pro

Eagle View Remodeling

4.86(
50
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
772 local quotes requested

We have the experience and dedication to bring your dreams to reality! Specializing in Painting, Flooring and Ceramic Tile services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! Visit our website at https://eagleviewremodeling.com/.

"I was pleased with Amir and highly recommend him. He responded quickly with quotes and the delivery of professionals to my home to get the work done. The jobs were relatively small but he did not hesitate to help me. The quality of the work was excellent."

Susanne S on September 2025

We have the experience and dedication to bring your dreams to reality! Specializing in Painting, Flooring and Ceramic Tile services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today! Visit our website at https://eagleviewremodeling.com/.

"I was pleased with Amir and highly recommend him. He responded quickly with quotes and the delivery of professionals to my home to get the work done. The jobs were relatively small but he did not hesitate to help me. The quality of the work was excellent."

Susanne S on September 2025


Avatar for Harsini, Inc.

Harsini, Inc.

5.00(
6
)
Approved Pro

Harsini, Inc.

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our field and will always keep you informed on your particular task or project in a manner that is understandable to you. We look forward to earning your business!

"Mahyar was knowledgeable and a great communicator. His report was clear and helpful. He was also prompt in responding. All-around pleasant to work with. Highly recommend this firm."

Liz G on April 2023

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our field and will always keep you informed on your particular task or project in a manner that is understandable to you. We look forward to earning your business!

"Mahyar was knowledgeable and a great communicator. His report was clear and helpful. He was also prompt in responding. All-around pleasant to work with. Highly recommend this firm."

Liz G on April 2023


Peter T. Erdelyi & Associates, Inc.

4.53(
84
)
Approved Pro

Peter T. Erdelyi & Associates, Inc.

4.53(
84
)
Approved Pro
Customers say: Quick response
86 local quotes requested
49 years of experience

Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings

"Very professional and prompt. Did a great job"

Henry D on November 2025

Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings

"Very professional and prompt. Did a great job"

Henry D on November 2025


Avatar for Standley Structural Design

Standley Structural Design

5.00(
5
)
Approved Pro

Standley Structural Design

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

Welcome to Standley Structural Design, proudly servicing Sherman Oaks, and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. 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 know 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 gotten back to you in time to not delay your projects.

"punctual . professional and pleasant."

ELLEY L on February 2021

Welcome to Standley Structural Design, proudly servicing Sherman Oaks, and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. 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 know 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 gotten back to you in time to not delay your projects.

"punctual . professional and pleasant."

ELLEY L on February 2021


Avatar for Pac Sands Corp

Pac Sands Corp

5.00(
5
)
Approved Pro

Pac Sands Corp

5.00(
5
)
Approved Pro
110 local quotes requested
8 years of experience

We specialize in home designs, structural engineering, and architectural plans for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Muy buen servicio y excelente compania "

Ernesto M on August 2025

We specialize in home designs, structural engineering, and architectural plans for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Muy buen servicio y excelente compania "

Ernesto M on August 2025


Avatar for Standley Structural Design

Standley Structural Design

New on AngiNew on Angi
Approved Pro

Standley Structural Design

New on AngiNew on Angi
Approved Pro
47 local quotes requested
11 years of experience

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!

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!


Avatar for S&D construction

S&D construction

No reviews yet

S&D construction

No reviews yet

We are a family own construction business focusing in New construction, remodeling, plumbing, roofing, fire restoration and ADU. We have been in business for over 35 years. We are licensed and bonded.

We are a family own construction business focusing in New construction, remodeling, plumbing, roofing, fire restoration and ADU. We have been in business for over 35 years. We are licensed and bonded.


ksmd engineering and construction, inc

No reviews yet

ksmd engineering and construction, inc

No reviews yet

We provide top rate construction service to industry and homeowners. We are specialized in kitchen and bath remodeling, ADU construction, landscaping projects and concrete work. We provide commercial and residential projects with top rated service.

We provide top rate construction service to industry and homeowners. We are specialized in kitchen and bath remodeling, ADU construction, landscaping projects and concrete work. We provide commercial and residential projects with top rated service.


Calebs Imagination

No reviews yet

Calebs Imagination

No reviews yet
5 years of experience

Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!

Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!

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Structural Engineering questions, answered by experts

Structural engineers are necessary for projects involving alterations to load-bearing structures, foundation work, and compliance with safety standards. This includes home expansions, retaining walls, and significant repairs that impact a property's integrity.

Yes. Foundation walls are always load-bearing.

While concrete walls do not need to "breathe" in the traditional sense of the word, they do require waterproofing and dehumidifying methods, particularly in basements below the water table. Concrete both contains moisture from its initial installation and can absorb water when exposed. Ensuring proper basement ventilation , installing a vapor barrier, and controlling water exposure are all important tasks.

A structural engineer’s report includes a professional assessment of a property’s foundation condition, structural elements like roof trusses and floor joists, and the skeleton of the home, including studs, beams, and rafters. It will also usually include an assessment of drainage on the property and any potential issues that could arise from environmental conditions, like extreme weather in the area and even tree placement.

You need to hire a structural engineer when building or modifying any component with a structural load in your home. Common situations where you would need a structural engineer include home inspections when buying or selling a home, investigating possible issues with your foundation, beams, load-bearing walls, or chimneys, breaking ground on a new home or structure on your property, and renovating an old part of your home that could threaten any structural integrity. Home additions and bump-outs also require an engineer.

The Winnetka, CA homeowners’ guide to structural engineering services

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