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TRUSTED BY ANNANDALE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon11
    Verified structural engineering services reviews

Top-Rated Structural engineers in Annandale - Updated Nov 2026

Avatar for StructuralMD
StructuralMD
4.7(
153
)
Engineer - Structural

Serving Annandale, NJ and surrounding areas

Approved

In business since 2008

Warranties offered

Credit card accepted

"We recently completed a project with Lallygone to remove 3 columns from my basement. The entire experience from scheduling a consultation with the engineer to completion of the job was seamless. The team is knowledgeable, courteous and very professional. I strongly recommend them for replacing lally columns or any structural improvements in existing or new homes. George thanks for your honest recommendations, Chris for your in-depth inspection and detailed explanation & Lena for managing it end to end.. thanks for the wonderful experience."
Response time1 day
1 neighbors recently requested a quote
Recommended by93%of homeowners
Joseph Primiano Architect
4.8(
25
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Annandale, NJ and surrounding areas

Approved

In business since 2007

Emergency services offered

Small jobs welcome

"Joe and team at Three D Concepts did a phenomenal job. Very professional and very knowledgeable in his field. Joe provided insight and ideas that I didn't even think of when starting the project. He was also very familiar with my township and the surrounding areas, which is important whenever doing a home extension. Knowing how to navigate the various zoning laws is so important with something like this. I searched around quite a bit for a qualified architect who is trust worthy. Many wanted to charge a percentage of the construction job. In my opinion, the cost of tile that I choose, shouldn't dictate my architectural costs. Joe provided a flat fee quote upfront. This was a breathe of fresh air and took a lot of uncertainty out of the process. Finally, the quality of work was top notch. We absolutely love the plans that he put together for us. Our dream home will now finally become a reality thanks to Joe and Three D Concepts."
Additional Photos
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+5

Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Evolution Drafting
Evolution Drafting
3.7(
127
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Annandale, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I am having a full master bath and kitchen remodel done with new layouts in both rooms and knocking out a wall. Evolution worked with me to quickly get a drawing done of the new layouts so that the contractor could get started on the project. They made sure to include me in the process so that the design would be done exactly as my wife and I envisioned. They communicated effectively throughout the process and were always courteous and professional. I recommend them to anyone with drafting needs."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
75 neighbors recently requested a quote
Avatar for RD Architectural Design, LLC
RD Architectural Design, LLC
5.0(
4
)
Draftsperson/CADD

Serving Annandale, NJ and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

"Very Happy With Ryans' Work :) We are in the process of opening a Bakery and Ryan not only provided the designs but helped us figure out how to set things up properly. He consulted with other pros / team members, like his Mechanical Engineer, to confirm all details needed. He met with our team a few times, very professional always and provided us with the final designs. I must say, I was AMAZED! Just Beautiful Work! Thanks Ryan!!! Highly Recommended!!!"
Elevations
Response time3 days
Recommended by100%of homeowners
Avatar for APEX Drafting LLC
APEX Drafting LLC
3.9(
7
)
Draftsperson/CADDArchitect

Serving Annandale, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. \nYou will find us to be competitively priced with close attention to the details. \nOur reputation is based on service, safety, and quality, regardless of how large or small the job. \nWe look forward to building a lasting relationship and guarantee your satisfaction! \n

Plan set 1
257 neighbors recently requested a quote
Daniel Dunzik Architect
3.1(
5
)
ArchitectArchitect - For Business

Serving Annandale, NJ and surrounding areas

Approved

In business since 1991

Free estimates

Offers commercial services

For over 25 years we have been providing exceptional designs for everyday use for residential and commercial clients. We help people through the process of feasibility studies, design, zoning, planning, permitting and construction to achieve your goals. Excellent communication is key to the process. Our goal is your ultimate satisfaction with the end product, your home, your business place, while ushering you through the entire process with a minimum of disruption. We have experience in all sized residential projects from small additions to complete makeovers to stunning new homes. We have vast commercial and institutional experience as well.

WARREN HOME
BERNARDS TWP.  HOME
ADD A LEVEL
INTERIOR DESIGN
OUTDOOR SPACES

+2

Response time8 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Thomas E. Hall And Associates, Inc.
Thomas E. Hall And Associates, Inc.
New to Angi
ArchitectDraftsperson/CADDArchitect - For Business

Serving Annandale, NJ and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

Thomas E. Hall & Associates, Inc. Architects (TEH) is an award-winning, full service architectural & interior design firm based in Wayne, PA. The firm was founded in 1988 by Thomas E. Hall, AIA. The firm specializes in the design of interiors, workplace standards, commercial office buildings & master planning. TEH prides itself on its ability to work closely and listen carefully to our clients to achieve results beyond their initial goals.\n\nOur team differentiates itself from other firms by guaranteeing the Principal-level talent are personally dedicated to each project on a day-to-day basis.

1038 Rock Creek Road
215 Curwen Road
201 Broughton Lane
1038 Rock Creek Road
215 Curwen Road

+122

Response time11 hrs
Response rate100%
3 neighbors recently requested a quote
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Structural Engineering FAQs, 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.

A structural engineer's report provides a professional assessment of a property's structural condition. It typically includes an evaluation of the foundation, key structural elements like roof trusses, floor joists, studs, beams, and rafters. The report will also contain a detailed description of the engineer's findings, often supported by photographs, and provide recommendations to correct any identified issues. Depending on the scope of the inspection, it might also include an assessment of property drainage, potential issues from environmental conditions like extreme weather or tree placement, and an estimated time and cost for any recommended repairs.

A split-level home is one that has several staggered floors connected by short staircases, while a split floor plan separates the primary bedroom from the rest of the bedrooms. Split floor plans are most often found in single-story homes, while split-level homes are always at least two stories.

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.

The average cost to hire a structural engineer is about $550, with prices generally ranging from $200 to $1,500. Structural engineers may charge a flat rate, by the project, by square footage, or an hourly rate, which is typically between $100 and $250. Many jobs, such as inspections and structural calculations, are billed at a flat rate, which often falls between $300 and $800. The final cost depends on several factors, including the project's type, scope, size, complexity, ease of access for inspection, and your geographic location.

The Annandale, NJ homeowners’ guide to structural engineering services

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