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Engineer structural pros in Simi Valley

Avatar for RCS Engineering Services

RCS Engineering Services

2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
•Approved Pro

RCS Engineering Services

2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"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!"

Constantine P on January 2020

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"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!"

Constantine P on January 2020

Peter T. Erdelyi & Associates, Inc.

2999 Overland Ave STE 103
4.52(
83
)
•Approved Pro

Peter T. Erdelyi & Associates, Inc.

2999 Overland Ave STE 103
4.52(
83
)
•Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
60 local quotes requested

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

"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."

Dominic M on July 2023

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

"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."

Dominic M on July 2023

Avatar for Standley Structural Design

Standley Structural Design

18757 Burbank Blvd Unit 109
5.00(
5
)
•Approved Pro

Standley Structural Design

18757 Burbank Blvd Unit 109
5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 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

1309 Coffeen Ave STE !200
5.00(
5
)
•Approved Pro

Pac Sands Corp

1309 Coffeen Ave STE !200
5.00(
5
)
•Approved Pro
13 local quotes requested
8 years of experience

We specialize in home designs, architectural plans and structural drawings 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, architectural plans and structural drawings 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 Better Together Builders

Better Together Builders

7026 Rhea Ave
4.87(
135
)
•Approved Pro

Better Together Builders

7026 Rhea Ave
4.87(
135
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1754 local quotes requested

We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**

"I hired Better Together Builders for a major home renovation and have paid over $130K toward the project. While some work was completed, my overall experience has been disappointing due to delays, unfinished tasks, and a lack of attention to detail. I am currently pursuing legal action against this company for their failure to fulfill contractual obligations and for the damages caused. Specific examples from my project: • Electrical work was left incomplete, requiring me to hire a licensed electrician at my own expense to finish it. • Several areas were installed without proper preparation, resulting in chipped slabs, misaligned cuts, unpatched drywall holes, and exposed wiring. • Communication and follow-up became inconsistent, and I often had to chase updates to keep the project moving. • Extended delays caused me to lose months of potential rental income, while I also had to pay for temporary housing. This review reflects my personal experience and is not intended to cause harm, but to inform others. If you decide to work with BTB, I strongly recommend documenting every stage of the project, inspecting work before releasing payments, and ensuring all contracted items are fully completed before signing off."

Jose L on August 2025

We are a full design build firm, specializing in kitchen, bathroom, and complete home remodeling. This also includes additions and ADU's! In the process of creating your dream home, our goal is to provide you with the most up-to-date ideas and solutions. A "one stop shop" for all your remodeling needs. Our team builds and remodels homes with various styles such as: traditional, Spanish, modern, contemporary and beyond. Call us today to get your in-home FREE consultation! Hand in Hand we will make this experience unique and successful. So let's make it Better together! Better Together Builders Lic#1047689 818-858-9840 Info@bettertogetherbuilders.com **Please note: Due to high demand, we are no longer able to do projects that are under a budget of $7000.**

"I hired Better Together Builders for a major home renovation and have paid over $130K toward the project. While some work was completed, my overall experience has been disappointing due to delays, unfinished tasks, and a lack of attention to detail. I am currently pursuing legal action against this company for their failure to fulfill contractual obligations and for the damages caused. Specific examples from my project: • Electrical work was left incomplete, requiring me to hire a licensed electrician at my own expense to finish it. • Several areas were installed without proper preparation, resulting in chipped slabs, misaligned cuts, unpatched drywall holes, and exposed wiring. • Communication and follow-up became inconsistent, and I often had to chase updates to keep the project moving. • Extended delays caused me to lose months of potential rental income, while I also had to pay for temporary housing. This review reflects my personal experience and is not intended to cause harm, but to inform others. If you decide to work with BTB, I strongly recommend documenting every stage of the project, inspecting work before releasing payments, and ensuring all contracted items are fully completed before signing off."

Jose L on August 2025

Avatar for Green Republic Landscape Design Services

Green Republic Landscape Design Services

P.o Box 5477
4.58(
48
)
•Approved Pro

Green Republic Landscape Design Services

P.o Box 5477
4.58(
48
)
•Approved Pro
Customers say: Quality work
761 local quotes requested
19 years of experience

Green Republic Landscapes is a premier landscape design-build firm dedicated to transforming outdoor spaces into stunning, functional environments. We specialize in creating customized landscaping solutions that reflect each client's unique vision and lifestyle. Our comprehensive services include: Garden Design and Installation, Expert Planting, Landscape Lighting, Irrigation Systems, Flagstone & Paver Installation and many other high-quality landscaping services. With extensive industry experience and a passion for excellence, GRL delivers results that consistently exceeds expectations. From the initial consultation to the final reveal, we ensure a smooth , enjoyable process-and an outdoor space you'll love for years to come. Let us bring your dream landscape to life. Minimum project investment: $5,000.00

"We couldn't be happier with our backyard project. Motti and Kimberly were just wonderful to work with. They were professional, knowledgeable, friendly, and attentive all throughout the process. They listened to our thoughts and educated us as to all our possibilities. Motti has a wonderful design eye and is so passionate about his work. We were very happy when we used them for the front of our house 4 years ago, this time around for the back, and we would use them again in the future. We recommend them highly."

Janice L on February 2022

Green Republic Landscapes is a premier landscape design-build firm dedicated to transforming outdoor spaces into stunning, functional environments. We specialize in creating customized landscaping solutions that reflect each client's unique vision and lifestyle. Our comprehensive services include: Garden Design and Installation, Expert Planting, Landscape Lighting, Irrigation Systems, Flagstone & Paver Installation and many other high-quality landscaping services. With extensive industry experience and a passion for excellence, GRL delivers results that consistently exceeds expectations. From the initial consultation to the final reveal, we ensure a smooth , enjoyable process-and an outdoor space you'll love for years to come. Let us bring your dream landscape to life. Minimum project investment: $5,000.00

"We couldn't be happier with our backyard project. Motti and Kimberly were just wonderful to work with. They were professional, knowledgeable, friendly, and attentive all throughout the process. They listened to our thoughts and educated us as to all our possibilities. Motti has a wonderful design eye and is so passionate about his work. We were very happy when we used them for the front of our house 4 years ago, this time around for the back, and we would use them again in the future. We recommend them highly."

Janice L on February 2022

Avatar for 24 Kt Green

24 Kt Green

24 Northam Ave
4.63(
43
)
•Approved Pro

24 Kt Green

24 Northam Ave
4.63(
43
)
•Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
285 local quotes requested

24 Kt Green is a full service landscaping company that specializes in residential landscape design and installation. With over 50 years in business, we are experts in design, planting, irrigation, lighting, water features, drainage, hardscaping and landscape clean-ups. With an extensive knowledge of plants and drip irrigation let us transform your thirsty lawn areas to beautiful, low-maintenance gardens featuring flowering plants that use less water and require minimal maintenance. Award Winning.

"I hired Tom a few times. The largest project he did: plant ground cover and lots of bushes on a pretty steep hill, had to clean it, improve irrigation, etc. also we did a few tune up projects for irrigation and landscape lightning repair as well as build 26” garden retainer wall. I was super happy with the work Tom and his crew did. He is easy to communicate with, punctual, pays attention to details and overall a very pleasant person to do business with. After a large project we followed up with a few smaller ones and plan to do more. I liked his crew as well: attention to details, keeping job site clean during the work and after. Highly recommend!"

Dmytro S on August 2023

24 Kt Green is a full service landscaping company that specializes in residential landscape design and installation. With over 50 years in business, we are experts in design, planting, irrigation, lighting, water features, drainage, hardscaping and landscape clean-ups. With an extensive knowledge of plants and drip irrigation let us transform your thirsty lawn areas to beautiful, low-maintenance gardens featuring flowering plants that use less water and require minimal maintenance. Award Winning.

"I hired Tom a few times. The largest project he did: plant ground cover and lots of bushes on a pretty steep hill, had to clean it, improve irrigation, etc. also we did a few tune up projects for irrigation and landscape lightning repair as well as build 26” garden retainer wall. I was super happy with the work Tom and his crew did. He is easy to communicate with, punctual, pays attention to details and overall a very pleasant person to do business with. After a large project we followed up with a few smaller ones and plan to do more. I liked his crew as well: attention to details, keeping job site clean during the work and after. Highly recommend!"

Dmytro S on August 2023

Avatar for G&L Design Building & Landscape Inc

G&L Design Building & Landscape Inc

6520 Platt Ave #556
4.30(
161
)
•Approved Pro

G&L Design Building & Landscape Inc

6520 Platt Ave #556
4.30(
161
)
•Approved Pro
Customers say: Super punctual
846 local quotes requested
18 years of experience

G&L Design Building and Landscape Inc is a licensed general contractor builder who specializes in the outdoors construction, pool and spa construction , deck, retaining wall, gate and fence ,hardscape, landscape, design & build company that has been servicing residential and commercial clients in the Los Angeles and Ventura counties. Although unique and functional design is our passion, outstanding customer service is our number one priority. Our talented landscape designers will listen to your needs and then use their expertise to develop an architectural quality landscape design that fits your personality and lifestyle. Members with the CLCA and Angelus pavers.

"I recently hired G&L Design Building and Landscape for a major outdoor project, and I couldn't be more thrilled with the results! From start to finish, the experience was seamless, professional, and truly impressive. Dror, the owner, is a visionary. His attention to detail, creativity, and commitment to quality were evident in every phase of the project. He took the time to understand my vision and brought it to life even better than I imagined. His team built a stunning retaining wall, installed lush, vibrant turf, and laid down beautiful interlocking pavers that completely transformed the space. On top of that, they planted an incredible selection of trees and flowers that added the perfect finishing touch—absolutely breathtaking! The crew was punctual, respectful, and worked with great care and precision. It’s rare to find a team so dedicated and passionate about their craft. If you're looking for top-tier landscaping and design, look no further than G&L Design. Dror and his team are the real deal—professional, talented, and a pleasure to work with. Highly recommended!"

iuval h on June 2025

G&L Design Building and Landscape Inc is a licensed general contractor builder who specializes in the outdoors construction, pool and spa construction , deck, retaining wall, gate and fence ,hardscape, landscape, design & build company that has been servicing residential and commercial clients in the Los Angeles and Ventura counties. Although unique and functional design is our passion, outstanding customer service is our number one priority. Our talented landscape designers will listen to your needs and then use their expertise to develop an architectural quality landscape design that fits your personality and lifestyle. Members with the CLCA and Angelus pavers.

"I recently hired G&L Design Building and Landscape for a major outdoor project, and I couldn't be more thrilled with the results! From start to finish, the experience was seamless, professional, and truly impressive. Dror, the owner, is a visionary. His attention to detail, creativity, and commitment to quality were evident in every phase of the project. He took the time to understand my vision and brought it to life even better than I imagined. His team built a stunning retaining wall, installed lush, vibrant turf, and laid down beautiful interlocking pavers that completely transformed the space. On top of that, they planted an incredible selection of trees and flowers that added the perfect finishing touch—absolutely breathtaking! The crew was punctual, respectful, and worked with great care and precision. It’s rare to find a team so dedicated and passionate about their craft. If you're looking for top-tier landscaping and design, look no further than G&L Design. Dror and his team are the real deal—professional, talented, and a pleasure to work with. Highly recommended!"

iuval h on June 2025

Avatar for Green Valley Landscape and Design Inc

Green Valley Landscape and Design Inc

5.00(
7
)
•Approved Pro

Green Valley Landscape and Design Inc

5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
339 local quotes requested

We specialize in all phases of landscaping, hardscaping, and more! 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! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very happy with the business interaction and finished product"

dona s on August 2023

We specialize in all phases of landscaping, hardscaping, and more! 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! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very happy with the business interaction and finished product"

dona s on August 2023

Avatar for Roberto's Landscaping

Roberto's Landscaping

542 Xanadu Way
5.00(
3
)
•Approved Pro

Roberto's Landscaping

542 Xanadu Way
5.00(
3
)
•Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
450 local quotes requested

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"All well and very quickly I had my fountain working again. Should not have waited so long before calling Roberto's."

Nancy H on August 2024

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"All well and very quickly I had my fountain working again. Should not have waited so long before calling Roberto's."

Nancy H on August 2024

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FAQs for engineer structural projects in Simi Valley, CA

The timeframe for installing an LVL beam depends on your project's complexity and scope. Factors affecting the timeline include whether walls need removal, the beam's size, and whether electrical or plumbing modifications are necessary. Your contractor should provide a specific timeline estimate based on your home's unique circumstances and the specific requirements of your installation.

Financing options are available for structural improvements like LVL beam installations. Many homeowners use home equity loans or lines of credit, often offering favorable interest rates for home improvement projects. Some contractors partner with financing companies to provide payment plans directly. When gathering quotes, ask potential contractors about financing partnerships they maintain or recommendations for lenders experienced with home renovation projects.

LVL beams become necessary when you need to span greater distances without support columns or when supporting substantial loads. Traditional lumber can't span more than eight to 12 feet without support, while LVL beams can extend up to 30 feet. LVL provides the necessary strength to create truly open concept spaces or support upper floors without columns. Consulting with a structural engineer helps determine the appropriate beam type for your specific requirements.

Beyond the core installation, the budget for build-back costs totals $400 to $2,000, depending on the extent of affected finishes. If foundation reinforcement becomes necessary, allocate $1,000 to $3,000 per pier. Permit fees ranging from $100 to $500 should also be anticipated. For installations affecting utilities, factor in electrician rates of $50 to $130 per hour and plumber rates of $45 to $200 per hour if rerouting is required.

The Simi Valley, CA homeowners’ guide to engineer structurals

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

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