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    Average homeowner rating
  • Verified reviews icon24
    Verified structural engineering services reviews

Find Structural engineers in Castaic

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro
Customers say: Super punctual
204 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


Broadside Fabrication

No reviews yet

Broadside Fabrication

No reviews yet
10 years of experience

With over 20 years experience we have developed a valuable skill set providing solutions in the performance motorsports, studio, commercial, residential and manufacturing industries. Everything from restoring 60+ year old vehicles, designing and manufacturing high end parts for luxury brands like Mercedes and Porsche to designing/building massive structural and esthetic components for industrial and residential applications. I will offer expertise and practice in tube and sheet metal forming related to the off road race industries as well as 3D scanning and CAD models for all CNC operations and all welding processes on all materials and applications. I have a large network of friends, clients, partners and associates that have proven valuable with an array of skills and expert level knowledge. Our expertise isn't limited to design, engineering and fabrication. We will also offer a broad range of brokering, consulting, training as well as maintenance, mobile technician and installation services.

With over 20 years experience we have developed a valuable skill set providing solutions in the performance motorsports, studio, commercial, residential and manufacturing industries. Everything from restoring 60+ year old vehicles, designing and manufacturing high end parts for luxury brands like Mercedes and Porsche to designing/building massive structural and esthetic components for industrial and residential applications. I will offer expertise and practice in tube and sheet metal forming related to the off road race industries as well as 3D scanning and CAD models for all CNC operations and all welding processes on all materials and applications. I have a large network of friends, clients, partners and associates that have proven valuable with an array of skills and expert level knowledge. Our expertise isn't limited to design, engineering and fabrication. We will also offer a broad range of brokering, consulting, training as well as maintenance, mobile technician and installation services.


Avatar for Quality Fiberglass Repair LLC

Quality Fiberglass Repair LLC

205 West 4th Street
No reviews yet

Quality Fiberglass Repair LLC

205 West 4th Street
No reviews yet
Free onsite estimate

At Quality Fiberglass we Offer Repair, Restoration, and Fabrication services on any RV, Boat, or Autombile along side many Home Improvement and Repair services. Home Improvement and Repair Services ~ Pool and Spa Repair and Resurfacing ~ Vinyl Pool Liner Instalation and Replacement ~ Pool / Water Slide Repair, Resurfacing, and Custom Fabrication ~ Custom Fountains, Fish Tanks, and Koi Ponds ~ Composit and Fiberglass Furniture, Sculpture, and Art Repair Custom Fabrication ~ Bathroom and Closet Remodels and Custom Fabrication We are a small family owned and operated business with three generations of trade experience and expertise. Our goal is to provide our community with exceptional products that have lasting value. We attain this goal by providing services, sourcing materials, and building products with Integrity, Excellence, and Creativity.

At Quality Fiberglass we Offer Repair, Restoration, and Fabrication services on any RV, Boat, or Autombile along side many Home Improvement and Repair services. Home Improvement and Repair Services ~ Pool and Spa Repair and Resurfacing ~ Vinyl Pool Liner Instalation and Replacement ~ Pool / Water Slide Repair, Resurfacing, and Custom Fabrication ~ Custom Fountains, Fish Tanks, and Koi Ponds ~ Composit and Fiberglass Furniture, Sculpture, and Art Repair Custom Fabrication ~ Bathroom and Closet Remodels and Custom Fabrication We are a small family owned and operated business with three generations of trade experience and expertise. Our goal is to provide our community with exceptional products that have lasting value. We attain this goal by providing services, sourcing materials, and building products with Integrity, Excellence, and Creativity.



Struct 1 Builders Inc

16217 KITTRIDGE ST
No reviews yet

Struct 1 Builders Inc

16217 KITTRIDGE ST
No reviews yet
Free onsite estimate

At Struct 1 Builders Inc, we specialize in providing top-notch general contracting services tailored to meet the diverse needs of our clients. With a keen focus on excellence and efficiency, we offer a comprehensive range of services to ensure that every project is completed to the highest standards of quality and craftsmanship. Specialties and Overview of Services: Our specialties encompass a wide array of construction and renovation projects, including but not limited to: Residential Construction: From custom home builds to renovations and remodeling, we bring expertise and innovation to every residential project we undertake. Renovations and Remodeling: Whether it's updating a kitchen, bathroom, or entire property, our renovation and remodeling services breathe new life into existing spaces, enhancing both functionality and aesthetics. Interior and Exterior Finishing: We offer expertise in interior and exterior finishing touches, ensuring that every detail, from paint to flooring, contributes to the overall appeal and durability of the structure. Value Proposition and Competitive Advantage: At Struct 1 Builders Inc, our commitment to excellence sets us apart from the competition. Here's what makes us stand out: Quality Craftsmanship: We take pride in our workmanship, delivering results that exceed expectations and stand the test of time. Client-Centric Approach: We prioritize open communication and collaboration with our clients, ensuring that their vision is realized and their needs are met at every stage of the project. At Struct 1 Builders Inc, we don't just build structures; we build relationships. Trust us to bring your vision to life with professionalism, integrity, and unparalleled expertise.

At Struct 1 Builders Inc, we specialize in providing top-notch general contracting services tailored to meet the diverse needs of our clients. With a keen focus on excellence and efficiency, we offer a comprehensive range of services to ensure that every project is completed to the highest standards of quality and craftsmanship. Specialties and Overview of Services: Our specialties encompass a wide array of construction and renovation projects, including but not limited to: Residential Construction: From custom home builds to renovations and remodeling, we bring expertise and innovation to every residential project we undertake. Renovations and Remodeling: Whether it's updating a kitchen, bathroom, or entire property, our renovation and remodeling services breathe new life into existing spaces, enhancing both functionality and aesthetics. Interior and Exterior Finishing: We offer expertise in interior and exterior finishing touches, ensuring that every detail, from paint to flooring, contributes to the overall appeal and durability of the structure. Value Proposition and Competitive Advantage: At Struct 1 Builders Inc, our commitment to excellence sets us apart from the competition. Here's what makes us stand out: Quality Craftsmanship: We take pride in our workmanship, delivering results that exceed expectations and stand the test of time. Client-Centric Approach: We prioritize open communication and collaboration with our clients, ensuring that their vision is realized and their needs are met at every stage of the project. At Struct 1 Builders Inc, we don't just build structures; we build relationships. Trust us to bring your vision to life with professionalism, integrity, and unparalleled expertise.


Top Pros Construction, Inc.

16633 Ventura Blvd
4.97(
135
)

Top Pros Construction, Inc.

16633 Ventura Blvd
4.97(
135
)
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

We are Experts in home remodeling, improvements, landscape, roofing and room additions – We are a licensed, insured, and bonded remodeling and construction company, working exclusively in home remodeling and improvements. We are a team of experienced hardworking people, project managers, engineers, architects, and designers ready to work for you. We aim to produce excellent workmanship, top quality labor, and advanced integration and affordable services that meet our clients‘ demands. Top Pros Construction provides services to all inside and outside remodeling needs on the kitchen, bathroom, room addition (ADU), and any custom remodeling you may need.

"I’m beyond happy with our new kitchen. Or at Top Pros Construction made what could have been a stressful renovation so much easier. He communicated clearly and made sure the crew respected our home. We stayed within budget and on schedule, which I know doesn’t always happen with big remodels. Now the kitchen feels open, modern, and perfect for our family dinners. I’d recommend Top Pros in a heartbeat."

John W on July 2025

We are Experts in home remodeling, improvements, landscape, roofing and room additions – We are a licensed, insured, and bonded remodeling and construction company, working exclusively in home remodeling and improvements. We are a team of experienced hardworking people, project managers, engineers, architects, and designers ready to work for you. We aim to produce excellent workmanship, top quality labor, and advanced integration and affordable services that meet our clients‘ demands. Top Pros Construction provides services to all inside and outside remodeling needs on the kitchen, bathroom, room addition (ADU), and any custom remodeling you may need.

"I’m beyond happy with our new kitchen. Or at Top Pros Construction made what could have been a stressful renovation so much easier. He communicated clearly and made sure the crew respected our home. We stayed within budget and on schedule, which I know doesn’t always happen with big remodels. Now the kitchen feels open, modern, and perfect for our family dinners. I’d recommend Top Pros in a heartbeat."

John W on July 2025


Avatar for InnoDez

InnoDez

5777 W CENTURY BLVD
No reviews yet

InnoDez

5777 W CENTURY BLVD
No reviews yet
6 years of experience

InnoDez is a California-based company that offers professional design and engineering services for its clients in commercial, residential, and industrial projects. InnoDez is a passionate group of architects & engineers with over 15 years of experience. We at InnoDez understand the best way to secure building permits for clients & believe in providing a timely, competent, cost-effective & comprehensive plan based on the current codes. We can effectively manage & guide each project from conceptual design through construction & project completion.

InnoDez is a California-based company that offers professional design and engineering services for its clients in commercial, residential, and industrial projects. InnoDez is a passionate group of architects & engineers with over 15 years of experience. We at InnoDez understand the best way to secure building permits for clients & believe in providing a timely, competent, cost-effective & comprehensive plan based on the current codes. We can effectively manage & guide each project from conceptual design through construction & project completion.



Avatar for Cosmic Renovation and Roofing Inc

Cosmic Renovation and Roofing Inc

6300 CANOGA AVE
4.16(
70
)

Cosmic Renovation and Roofing Inc

6300 CANOGA AVE
4.16(
70
)
Customers say: Super punctual
Free onsite estimate

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Cosmic Renovation & Roofing did a great job building our deck. Our deck was over 30 years old. Ben responded immediately to different options and also worked within our budget. We called other deck companies and there were long delays or no call backs. We love our deck and are proud to show it to our neighborhood. We have received many complements regarding the deck. We highly recommend Ben"

Rene R on April 2021

At Cosmic Renovation and Roofing, we offer years of professional experience and product expertise. We specialize in high quality residential upgrades and services such as roof installations, cool roof paint, solar installations, windows, full home remodeling including kitchen, bath and room additions as well as hardscape and historical house renovation. We take pride in combining innovation, industry knowledge and exceptional customer care with every project we do.

"Cosmic Renovation & Roofing did a great job building our deck. Our deck was over 30 years old. Ben responded immediately to different options and also worked within our budget. We called other deck companies and there were long delays or no call backs. We love our deck and are proud to show it to our neighborhood. We have received many complements regarding the deck. We highly recommend Ben"

Rene R on April 2021


Avatar for NS Designs

NS Designs

1245 E Walnut St
No reviews yet

NS Designs

1245 E Walnut St
No reviews yet
Free onsite estimate

NS Designs is an innovative design firm that specializes in an array of interior design and spatial planning projects. We take pride in our ability to exceed expectations in all aspects of business. This company exists because we love seeing projects come to life. What's your vision?

NS Designs is an innovative design firm that specializes in an array of interior design and spatial planning projects. We take pride in our ability to exceed expectations in all aspects of business. This company exists because we love seeing projects come to life. What's your vision?

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Structural Engineering questions, answered by experts

On average, 6 inches of concrete can hold around 150 pounds per square foot, but the exact weight that 6 inches of concrete can hold depends on factors such as the type of concrete, the reinforcement method, soil conditions below, and structural design. If you’re concerned about the longevity of your concrete patio, walkway, or driveway, hire a professional to help you choose an appropriate concrete thickness and reinforcement method for your needs.

Through proper drainage solutions and compacting the foundation soil.

Costs depend on desk size, labor, included features like drawers or motorized height adjustments, and required wall anchoring.

Foundation cracks that are 1/8 inch wide or less, aren’t uneven across the gap, and don’t continue widening over time are usually just normal settling cracks and don’t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.

Precast concrete can be reinforced with rebar, wire mesh, or other materials to improve its strength and add stability. Precast concrete for large construction projects is often pre-stressed as well for greater structural strength. Reinforced concrete is durable and strong, making it an ideal choice for many construction projects.

The Castaic, CA homeowners’ guide to structural engineering services

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