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    Verified structural engineering services reviews

Find Structural engineers in Sonoma

Avatar for ProStruct Engineering, Inc.

ProStruct Engineering, Inc.

450 Folsom Street,
5.00(
1
)
Approved Pro

ProStruct Engineering, Inc.

450 Folsom Street,
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.

"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."

Karishma S on August 2023

ProStruct Engineering offers professional structural engineering services for residential building permits at reasonable prices. Our licensed and insured engineers have over 35 years of experience with 2,000+ completed projects, including new homes, additions, remodels, ADUs, retaining walls, load-bearing walls, seismic retrofits, foundation design, outdoor living spaces, and more. Our core values of integrity, responsibility, reliability, and ethics ensure affordable and high-quality services. We aim to make the home-building experience of California homeowners as stress-free as possible by delivering compliant and high-quality structural plans. We are committed to being cost-effective, with quick delivery in 2-3 weeks for most projects.

"Prompt customer service and delivery. Worked with a very knowledgeable and experienced structural engineer."

Karishma S on August 2023


Avatar for Groundworks

Groundworks

2333 Courage Dr Ste C
4.33(
12
)
Approved Pro

Groundworks

2333 Courage Dr Ste C
4.33(
12
)
Approved Pro
Super Service Award
Customers say: Quality work
77 local quotes requested
20 years of experience

Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054

"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."

Dominick M on June 2025

Groundworks, formerly Bay Area Underpinning, specializes in helping homeowners with their residential and commercial foundation repair and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across the Sacramento and San Jose areas. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation. Schedule your FREE inspection today! 1116054

"We hired Groundworks CA (fka Bay Area Underpinning) for what we understood was a full foundation repair. We paid $42K. They only worked on the rear and never informed us that the front wasn’t included. Months later, while selling our home, a third-party engineer found $189K in unaddressed issues at the front. We were blindsided, lost our buyer, and suffered major financial and emotional stress. Groundworks later admitted they hadn’t measured the front. Their rushed “final inspection” months later felt reactive, not professional. When asked for a partial refund, they refused. We feel misled and abandoned. Avoid."

Dominick M on June 2025


Vista Foundry

Based In
5.00(
1
)

Vista Foundry

Based In
5.00(
1
)
3 years of experience

Fire Rebuild & Recovery Services — Helping You Recover, Rebuild, and Move Forward If your home was affected by the recent LA fires, Vista Foundry is here to help you rebuild smarter and safer. With 48 years of experience, we specialize in guiding homeowners through the recovery process with precision and expertise. Our services include: 3D Scanning & Design Recreation: Recreate your home as it was or enhance it with smarter, safer designs. Insurance Advocacy & Claim Negotiation: Maximize your payout with detailed, accurate rebuild cost estimates and expert guidance during claim negotiations. Cost-Effective Design & Engineering Solutions: We create efficient, budget-conscious plans without compromising safety or quality. Code-Compliant Structural Engineering: Ensure your new home meets today’s safety standards. Permitting & Legalization Support: Simplify the approval process and avoid delays. We focus on giving you the tools, strategies, and advocacy to restore your property, protect your investment, and rebuild with confidence. Let us help you turn a challenging situation into an opportunity to rebuild stronger and more resilient. Schedule Your Free Consultation Today → https://www.vistafoundry.com/booking

Fire Rebuild & Recovery Services — Helping You Recover, Rebuild, and Move Forward If your home was affected by the recent LA fires, Vista Foundry is here to help you rebuild smarter and safer. With 48 years of experience, we specialize in guiding homeowners through the recovery process with precision and expertise. Our services include: 3D Scanning & Design Recreation: Recreate your home as it was or enhance it with smarter, safer designs. Insurance Advocacy & Claim Negotiation: Maximize your payout with detailed, accurate rebuild cost estimates and expert guidance during claim negotiations. Cost-Effective Design & Engineering Solutions: We create efficient, budget-conscious plans without compromising safety or quality. Code-Compliant Structural Engineering: Ensure your new home meets today’s safety standards. Permitting & Legalization Support: Simplify the approval process and avoid delays. We focus on giving you the tools, strategies, and advocacy to restore your property, protect your investment, and rebuild with confidence. Let us help you turn a challenging situation into an opportunity to rebuild stronger and more resilient. Schedule Your Free Consultation Today → https://www.vistafoundry.com/booking


Wing Lee Architects Inc

No reviews yet

Wing Lee Architects Inc

No reviews yet
22 years of experience

Wing Lee Architects Inc was founded in 2003 by Wing Lee, AIA, LEED AP. We are a small, full serviced architecture firm based in San Francisco and Sonoma. The firm provides complete architectural services including programming, feasibility studies, conceptual design, schematic and design development, construction documents, assistance with permitting processes and bidding, contract administration, and LEED certification and coordination. We also provide interior design for a plethora of project types, that range from single family to public scale, with a concentration on commercial, institutional, transportation, and public sector work. We understand the pivotal role projects will play in creating a well-built environment that has its own sense of place in the community. For us, exceptional and successful design is derived from a balance of considered responses to climate, technology, culture, and site. We welcome open collaboration with clients, trusting that the final work benefits from a free flow of dialogue and ideas. The creation of each project is the result of a rigorous investigation and understanding of our client's vision.

Wing Lee Architects Inc was founded in 2003 by Wing Lee, AIA, LEED AP. We are a small, full serviced architecture firm based in San Francisco and Sonoma. The firm provides complete architectural services including programming, feasibility studies, conceptual design, schematic and design development, construction documents, assistance with permitting processes and bidding, contract administration, and LEED certification and coordination. We also provide interior design for a plethora of project types, that range from single family to public scale, with a concentration on commercial, institutional, transportation, and public sector work. We understand the pivotal role projects will play in creating a well-built environment that has its own sense of place in the community. For us, exceptional and successful design is derived from a balance of considered responses to climate, technology, culture, and site. We welcome open collaboration with clients, trusting that the final work benefits from a free flow of dialogue and ideas. The creation of each project is the result of a rigorous investigation and understanding of our client's vision.



Tangent Design & Engineering, Inc.

4095 Delmar Ave
5.00(
1
)

Tangent Design & Engineering, Inc.

4095 Delmar Ave
5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Structural Engineering, Civil Engineering, New Custom Home Design, Architectural Plans, Title 24, Solar Design, Submission and Coordination with HOA, City Design Review, Building Department Agencies. Start a new project here -> https://www.tangentde.com/contact

"They were professional, organized, and had a great communication. The pricing that they gave was better than the other company around the area. Overall the quality of the work was good."

Dani G on June 2022

Structural Engineering, Civil Engineering, New Custom Home Design, Architectural Plans, Title 24, Solar Design, Submission and Coordination with HOA, City Design Review, Building Department Agencies. Start a new project here -> https://www.tangentde.com/contact

"They were professional, organized, and had a great communication. The pricing that they gave was better than the other company around the area. Overall the quality of the work was good."

Dani G on June 2022


TEAL Engineering, Inc.

647 Tain Ct
No reviews yet

TEAL Engineering, Inc.

647 Tain Ct
No reviews yet
Free onsite estimate

TEAL Engineering offers structural design and solutions for a wide range of projects, from additions and remodels to custom homes and retaining walls. We have over 20 years of experience in the industry and provide contractor and framer friendly construction documents that save immensely in construction cost while giving effective designs to minimize the permit process. We are an owner operated business and limit the number of projects we take on in order to give every project the in-depth attention and detailing that makes us successful, no matter the size of the structure.

TEAL Engineering offers structural design and solutions for a wide range of projects, from additions and remodels to custom homes and retaining walls. We have over 20 years of experience in the industry and provide contractor and framer friendly construction documents that save immensely in construction cost while giving effective designs to minimize the permit process. We are an owner operated business and limit the number of projects we take on in order to give every project the in-depth attention and detailing that makes us successful, no matter the size of the structure.


RestoreX, LLC

450 Lakeville St
5.00(
9
)

RestoreX, LLC

450 Lakeville St
5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

RestoreX, LLC is a locally owned and operated Disaster Restoration Company specializing in water damage and flood removal, sewage cleanup, fire/smoke/odor cleaning services, mold inspections and mitigation for both residential and commercial properties. If you have any one of the following issues or any others please reach out for immediate assistance: Water damage Fire damage Water leak Flood Flooding Basement or crawlspace flood Roof leak Mold Extraction Wall and carpet drying Water leak Fire, smoke and odor cleanup Crawlspace moisture barriers Commercial water damage Direct insurance billing Work with all insurance companies Free inspections 24/7 Call or text: 844-MADEWHOLE (844-623-3936) Price beat guarantee! Immediate response 24/7!! http://restorex.biz

"Vendor was very responsive and professional."

JOHN L on August 2022

RestoreX, LLC is a locally owned and operated Disaster Restoration Company specializing in water damage and flood removal, sewage cleanup, fire/smoke/odor cleaning services, mold inspections and mitigation for both residential and commercial properties. If you have any one of the following issues or any others please reach out for immediate assistance: Water damage Fire damage Water leak Flood Flooding Basement or crawlspace flood Roof leak Mold Extraction Wall and carpet drying Water leak Fire, smoke and odor cleanup Crawlspace moisture barriers Commercial water damage Direct insurance billing Work with all insurance companies Free inspections 24/7 Call or text: 844-MADEWHOLE (844-623-3936) Price beat guarantee! Immediate response 24/7!! http://restorex.biz

"Vendor was very responsive and professional."

JOHN L on August 2022


Bay Area Design Consultants

987 MANOR BLVD
No reviews yet

Bay Area Design Consultants

987 MANOR BLVD
No reviews yet
22 years of experience

We are Building Design Consultants. We Draw Floor Plans for You Remodel, additions, new homes, or ADUs. We also do Floor Plan Design For Commercial Layout and Consulting. We specialize in Residental Floor Plan design and engineering. We take our customers to the highest level of customer service. We Provide Industry Standard Design and Consulting. We provide Consulting For Project Management for your Construction needs.

We are Building Design Consultants. We Draw Floor Plans for You Remodel, additions, new homes, or ADUs. We also do Floor Plan Design For Commercial Layout and Consulting. We specialize in Residental Floor Plan design and engineering. We take our customers to the highest level of customer service. We Provide Industry Standard Design and Consulting. We provide Consulting For Project Management for your Construction needs.


Winter Drafting & Design

429 REDCLIFF DR
No reviews yet

Winter Drafting & Design

429 REDCLIFF DR
No reviews yet
11 years of experience

Winter Drafting is a full service residential design group headquartered in Redding, California. As an award winning team of professionals, our family owned company has been commissioned to design hundreds of custom residential projects primarily throughout the state of California. Drawing from a diverse team of experienced consultants, we'd be glad to answer any of your questions regarding the design, construction, and/or permitting process for your custom home or renovation.

Winter Drafting is a full service residential design group headquartered in Redding, California. As an award winning team of professionals, our family owned company has been commissioned to design hundreds of custom residential projects primarily throughout the state of California. Drawing from a diverse team of experienced consultants, we'd be glad to answer any of your questions regarding the design, construction, and/or permitting process for your custom home or renovation.

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Structural Engineering questions, answered by experts

You should avoid drilling or cutting into load-bearing beams because removing material will weaken it and increase the risk of structural damage or even collapse. If you do need to drill into a load-bearing beam, speak with a structural engineer first to discuss where it’s safest to drill and the width and depth of the bit that’s safe to use.

Yes, ceiling joists are typically load-bearing. However, their primary function is to support the weight of the ceiling and loads applied to it, like lighting fixtures and ceiling fans. They can also help support the roof, especially if they’re part of truss systems. Remember, the load-bearing capacity of ceiling joists depends on the material, size, and space between them. 

Hiring a structural engineer costs about $550 on average. However, prices range from as low as $200 up to $1,500. Structural engineers may charge by project, hourly, or by the square footage, making it important to understand how your chosen engineer structures their estimates. Additional cost factors include project type, the scope of work, the size of the project, and your geographic location.

Indications include cracks in walls, uneven floors, and sticking doors or windows that suggest foundation movements.

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

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The Sonoma, CA homeowners’ guide to structural engineering services

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