5 Best Structural Engineer Firms in Los Angeles (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

By Fenris Morrow, Expert in Professional Services · ✓ Data verified August 2026 · 8 min read

A crack in a backyard wall and a hospital that needs to keep functioning after an earthquake call for very different engineers, and structural engineer firms in Los Angeles are built for both ends of that spectrum. The firms below have logged over 200 Google reviews combined, and most hold a rating of 4.6 or higher.

Short answer: Structural Engineering & Construction leads with a perfect 5.0 across 105 reviews, run by Sam and specializing in residential ADUs and foundation assessments. JN Structural Engineering (4.9, 31 reviews) is favored by architects for complex remodels, while Nabih Youssef Associates designs seismic systems for hospitals and major institutions. Get a site visit quote from each firm directly.

Jump to a business

1. Structural Engineering…
2. JN Structural Engineer…
3. Omega Structural, Inc.
4. Nabih Youssef Associat…
5. Greystone Engineering…
Get listed

LA's Top Structural Engineer Firms, Compared

#	Business	Rating	Reviews	Best for
1	Structural Engineering & Construction	5.0 ★	105	ADUs & residential foundation issues	View ›
2	JN Structural Engineering Inc	4.9 ★	31	Architect-referred complex remodels	View ›
3	Omega Structural, Inc.	4.4 ★	36	Hillside stabilization & foundation repair	View ›
4	Nabih Youssef Associates	4.8 ★	15	Hospitals & institutional seismic design	View ›
5	Greystone Engineering Group	4.6 ★	17	Load-bearing wall removal & remodels	View ›

5 Best Structural Engineer Firms in Los Angeles (2026)

Our top picks, reviewed

#1 Overall🕑 Open 7 days↩ Responds to reviews

Structural Engineering & Construction

5.0105 Google reviews

Structural Engineering & Construction, run by Sam, specializes in structural design and calculations for residential projects across Los Angeles, including accessory dwelling units, additions, remodeling, and foundation assessments. The firm also handles structural observation reports and evaluates existing conditions like cracked walls or aging foundations. It's built for homeowners navigating a single residential project rather than large commercial work.

What people praise

Explains complex structural findings in plain language homeowners can understand
Detailed, patient site visits that walk clients through every visible issue
Praised for honest assessments that don't oversell the severity of a problem
Reliable turnaround on drawings and observation reports

Reputation scorecardrank in Los Angeles

Rating5 / 5

Review volume105 · 97th

Confidencemoderate

Recency7 weeks ago

Info completenesssite · phone · hours

Rating breakdown99% 5-star

✓ VerifiedSource: Google

Our take: The most-reviewed and highest-rated firm here, especially strong for homeowners dealing with ADU projects or a worrying crack who want a clear, honest read on what's actually wrong.

Website +1310-991-7269 Directions

925 N La Brea Ave 5th Floor, Los Angeles, CA 90038

#2🕑 Open 5 days/wk↩ Responds to reviews

JN Structural Engineering Inc

4.931 Google reviews

JN Structural Engineering Inc, led by Joseph Mina, provides structural design and consulting for remodels, tenant improvements, seismic retrofits, and balcony inspections across Los Angeles. The firm is frequently brought in by architects for projects involving significant structural changes, like removing load-bearing walls for open-concept designs. It has built long relationships with the same architecture firms over many years.

What people praise

Repeatedly chosen over competitors after coming in with a lower, more accurate bid
Architects specifically praise its creative problem-solving on tricky structural challenges
Handles city plan-check revisions efficiently, sometimes in a single week
Long-standing relationships with the same architecture firms speak to consistency

Reputation scorecardrank in Los Angeles

Rating4.9 / 5

Review volume31 · 85th

Confidenceearly

Recency2 months ago

Info completenesssite · phone · hours

Rating breakdown97% 5-star

✓ VerifiedSource: Google

Our take: A strong pick when your project already has an architect who needs a structural partner comfortable navigating city plan checks and unusual design constraints.

Website +1310-838-1325 Directions

3679 Motor Ave #201, Los Angeles, CA 90034

#3🕑 Open 6 days/wk

Omega Structural, Inc.

4.436 Google reviews

Omega Structural, Inc. is an engineer-led Los Angeles firm specializing in soft-story retrofits, hillside remediation, foundation repair, retaining walls, and waterproofing, with more than two decades of experience. The company works with homeowners and property managers dealing with slope pressure, aging foundations, and water intrusion, particularly on LA's many hillside properties. It combines engineering assessment with the construction work itself.

What people praise

Praised for thorough, multi-visit site assessments before recommending a scope of work
Delivered a competitive quote for backyard regrading and drainage work
Handled tricky terrain, including steep drops and easement constraints, with a workable design
Estimators like Matt O'Donnell repeatedly named for clear communication

Worth knowing

Its 4.4 rating is the lowest here, with a handful of complaints worth reading before hiring

Reputation scorecardrank in Los Angeles

Rating4.4 / 5

Review volume36 · 91st

Confidenceearly

Recency5 weeks ago

Info completenesssite · phone · hours

Rating breakdown81% 5-star

✓ VerifiedSource: Google

Our take: A specialist worth calling if your issue is specifically a hillside, foundation, or drainage problem rather than new construction, given its combined engineering-and-construction approach.

Website +1323-373-5964 Directions

2516 W Vernon Ave, Los Angeles, CA 90008

#4🕑 Open 5 days/wk

Nabih Youssef Associates

4.815 Google reviews

Nabih Youssef Associates is a structural engineering firm based in downtown Los Angeles that designs seismic systems for hospitals, universities, and other institutions that must remain functional after a major earthquake. The firm's work includes forensic engineering, seismic risk assessment, and performance-based seismic design for large-scale projects. It operates at a different scale than the residential-focused firms on this page.

What people praise

Team described as skilled and genuinely invested in project outcomes
Known for a strong internal culture of critical thinkers who adapt to complex challenges
Deep specialization in performance-based seismic design for high-stakes buildings
Long client relationships across major institutional projects

Worth knowing

Smaller review base and focused on large institutional work rather than single-family residential projects

Reputation scorecardrank in Los Angeles

Rating4.8 / 5

Review volume15 · 74th

Confidenceearly

Recencyabout a year ago

Info completenesssite · phone · hours

Rating breakdown93% 5-star

✓ VerifiedSource: Google

Our take: Not the right fit for a homeowner's foundation crack, but the clear choice on this page for institutional or hospital-scale seismic engineering work.

Website +1213-362-0707 Directions

350 S Grand Ave #1600, Los Angeles, CA 90071

#5🕑 Open 5 days/wk

Greystone Engineering Group

4.617 Google reviews

Greystone Engineering Group, led by Soheil, provides structural engineering services for residential renovations across Los Angeles, including load-bearing wall removal, balcony and rain-damage assessments, and municipal plan-check support. The firm works directly with homeowners and contractors on renovation projects that require structural sign-off. It has a long-running client base built largely on referrals.

What people praise

Successfully designed a flush-ceiling solution after other engineers suggested a visible protruding beam
Helped a first-time homeowner navigate rain damage and structural concerns with clear options
Responsive turnaround, sometimes providing a full plan within days
Trusted repeatedly by the same contractors and homeowners across multiple projects

Worth knowing

Most reviews on file are several years old, so recent service levels are less documented

Reputation scorecardrank in Los Angeles

Rating4.6 / 5

Review volume17 · 79th

Confidenceearly

Recency7 years ago

Info completenesssite · phone · hours

Rating breakdown82% 5-star

✓ VerifiedSource: Google

Our take: A dependable option for renovation projects involving wall removal or structural sign-off, with a track record of finding cleaner solutions than competitors.

Website +1424-293-0566 Directions

11022 Santa Monica Blvd Ste 440, Los Angeles, CA 90025

Your business here

Get listed on this page, in front of local customers already searching for you.

Claim this spot ›

How we score

Every number on this page comes from public Google data on the date shown, not opinion or payment. Rating is each firm’s live Google star average. Review volume shows how many clients have rated them, measured against other LA structural engineering firms. Confidence weighs the rating by that volume, so a 5.0 from over 100 reviews carries more weight than a 4.9 from a couple dozen. Recency reflects how recently clients are still leaving reviews. No business can pay to change these numbers.

How much does a structural engineer cost in Los Angeles? (2026)

Structural engineering fees in LA vary widely depending on the scope, whether it’s a single observation report, full ADU design calculations, or a complex seismic retrofit. Ask each firm for a project-specific quote based on your scope and drawings.

Serving Los Angeles and surrounding areas

The firms above cover Los Angeles, West Hollywood, and the wider county, with several handling hillside and coastal properties across the region. Searching for a structural engineer near me? Every listing below shows a live phone number so you can request a site visit fast.

What to ask before you hire a structural engineer

Are you a licensed Professional Engineer in California?
Have you worked on projects similar to mine, like ADUs or hillside foundations?
What is included in your fee: site visit, calculations, drawings, and plan-check support?
How long will it take to get stamped drawings for permitting?
Do you coordinate directly with my architect or contractor?

Frequently asked questions

How did you choose these structural engineer firms?

We started from structural engineer firms in Los Angeles with a public Google presence, then ranked by rating, review volume, consistency, and recency. See How we score above.

Are these rankings paid?

No. Rankings come from public Google data. A business can pay to be a Featured Partner (badge + top placement), but that never changes another business’s score or position.

How often is this updated?

The data carries a verified date (August 2026 on this page). We refresh listings periodically so ratings and review counts stay current.

Which of these firms handles ADU projects?

Structural Engineering & Construction specifically markets ADU structural design, offering residential remodeling, addition, and observation reports for Los Angeles homeowners.

Do any of these firms handle hillside or foundation problems?

Omega Structural specializes in hillside remediation, foundation repair, and drainage work, while Structural Engineering & Construction also assesses foundation cracks on older homes.

The bottom line

Structural Engineering & Construction is the safe default for residential projects given its review volume and perfect rating, while Nabih Youssef Associates is the pick for institutional or hospital-scale seismic work. Get a site visit before committing, since structural scope is hard to price over the phone.

Best Specialized Services in other cities

More categories in Los Angeles

Own one of these businesses, or want to be here?

Claim your spot on this page: Basic listing $50 or Premium $100 for the top spot, held a full year. Both include a permanent link to your site.

Get listed See pricing