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TRUSTED BY LAKE ARROWHEAD, CA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon27
    Verified structural engineering services reviews

Find Structural engineers in Lake Arrowhead

Avatar for Alpha Omega

Alpha Omega

12940 Excalibur Drive
4.63(
75
)
Approved Pro

Alpha Omega

12940 Excalibur Drive
4.63(
75
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
54 local quotes requested

Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.

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Nissa G on May 2025

Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.

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Nissa G on May 2025


James E. DeGroff, Consulting Engineer

28180 Geneva Lane
4.08(
6
)
Approved Pro

James E. DeGroff, Consulting Engineer

28180 Geneva Lane
4.08(
6
)
Approved Pro
Customers say: Terrific value
25 local quotes requested
57 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Do yourself a favor and find another engineer. James is a nice man but for the rate he charges, i would expect far better service and quality of work. Since day one, i had to continually remind him (more like nag him) to do the things he committed to do (i.e., send proposal, get measurements, send drawings, etc). And when he finally sent a draft of the final drawings (for what is a very simple project), I couldn't believe the poor quality and attention to detail. And with each subsequent draft, it seems he introduced more errors than he corrected. "

Ned J on September 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Do yourself a favor and find another engineer. James is a nice man but for the rate he charges, i would expect far better service and quality of work. Since day one, i had to continually remind him (more like nag him) to do the things he committed to do (i.e., send proposal, get measurements, send drawings, etc). And when he finally sent a draft of the final drawings (for what is a very simple project), I couldn't believe the poor quality and attention to detail. And with each subsequent draft, it seems he introduced more errors than he corrected. "

Ned J on September 2025


Rehab Building Company, Inc.

No reviews yet

Rehab Building Company, Inc.

No reviews yet

Rehab Building Company, Inc. A License - Engineering B License - General Contractor C10 License - Electrical We are a growing company holding three licenses. We have done it all from residential, commercial to government work. As licensed contractor, we are in search of larger size projects using our expertise in engineering. Please contact us for all for major projects where you need seasoned expertise, quality workmanship and very professional contractors from start to finish. With over 80+ years in construction, we pride ourselves in the upmost quality, professionalism and expertise! Please call us for your next project.

Rehab Building Company, Inc. A License - Engineering B License - General Contractor C10 License - Electrical We are a growing company holding three licenses. We have done it all from residential, commercial to government work. As licensed contractor, we are in search of larger size projects using our expertise in engineering. Please contact us for all for major projects where you need seasoned expertise, quality workmanship and very professional contractors from start to finish. With over 80+ years in construction, we pride ourselves in the upmost quality, professionalism and expertise! Please call us for your next project.


Merco Earthmoving and Paving

No reviews yet

Merco Earthmoving and Paving

No reviews yet
6 years of experience

Merco Earthmoving and Paving is a small owner operated business that has been committed to providing customers with the very best in paving and construction. From driveways to backyards and anything in between, we can help to ensure that your property is the best year-round. Any job big or small, we do it all.

Merco Earthmoving and Paving is a small owner operated business that has been committed to providing customers with the very best in paving and construction. From driveways to backyards and anything in between, we can help to ensure that your property is the best year-round. Any job big or small, we do it all.


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.



S&R Design

5632 Van Nuys Blvd #235
No reviews yet

S&R Design

5632 Van Nuys Blvd #235
No reviews yet
9 years of experience

Residential and commercial design, engineering and permit processing for projects in Southern California. New construction / additions and remodels / ADU new and converted / single-family and multi-family / retaining walls and grading / planning department approvals / tenant improvement and change of use. Located in the heart of Van Nuys, project geography spanning from Oxnard to Joshua Tree, from Victorville to Mission Viejo, with other selected remote locations.

Residential and commercial design, engineering and permit processing for projects in Southern California. New construction / additions and remodels / ADU new and converted / single-family and multi-family / retaining walls and grading / planning department approvals / tenant improvement and change of use. Located in the heart of Van Nuys, project geography spanning from Oxnard to Joshua Tree, from Victorville to Mission Viejo, with other selected remote locations.


Shylock Enterprises

No reviews yet

Shylock Enterprises

No reviews yet

For the Hiring of the Services Iam capable of Doing all of any of the home remodeling or renovations, this as well as having many of the materials that will save you money. Iam familiar with the working tools and their use straight-edges, on the level and cost within due bounds all work will be right and exact.

For the Hiring of the Services Iam capable of Doing all of any of the home remodeling or renovations, this as well as having many of the materials that will save you money. Iam familiar with the working tools and their use straight-edges, on the level and cost within due bounds all work will be right and exact.


guilherme engineering

No reviews yet

guilherme engineering

No reviews yet
15 years of experience

we perform concrete work, structural and flat work. drive ways, curb and gutter, etc. also under ground utilities such as water, sewer, and gas. we are a small owner operated company and take pride in every job.

we perform concrete work, structural and flat work. drive ways, curb and gutter, etc. also under ground utilities such as water, sewer, and gas. we are a small owner operated company and take pride in every job.


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.

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Structural Engineering questions, answered by experts

Most lenders and homeowner’s insurance companies don’t mandate a structural engineer’s inspection, so in most cases, it’s not required. However, it’s a good idea to have one done anyway to ensure you know what you’re buying. You can use the report to carry out repairs after closing or even to negotiate the sale price before closing.

Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.

Yes, an LVL beam is more affordable than the cost of a steel I-beam, totaling between $50 and $200 per linear foot as opposed to the $100 to $400 per linear foot you’d pay for a steel I-beam. Not only is the wood material more affordable than steel, but it’s also more similar to traditional wooden beams and doesn’t require as much retrofitting to connect joists.

Building codes for spiral staircases will vary by your location. Most local codes will specify minimum tread width, riser height, handrail requirements, and headroom. These standards help ensure safety and accessibility for all users. Always check local codes before you begin the installation to ensure compliance and avoid costly modifications or fines.

Yes, they offer plans for repairs or reinforcements to address issues.

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The Lake Arrowhead, CA homeowners’ guide to structural engineering services

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