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Top-Rated Structural engineers in Merrimack - Updated Nov 2026

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
ArchitectDraftsperson/CADD

Serving Merrimack, NH and surrounding areas

Approved

In business since 1988

Customers say: True professional

"My wife and I were looking to have an addition built on our 2 bedroom / 1 bath home back in the winter of 2022. After a phone conversation with Richard, we decided to have him come out to the house. He was very clear with the iCornerstone process, and the benefits of using this process. He is meticulous in measuring and understanding the existing structure. There are no guesstimates and all cost projections are based on the actual materials and labor needed to complete the work. Having such clarity regarding costs before any work begins is not something I've seen in this industry prior to this experience. It was certainly a welcome change. We now have plans for a home addition and complete control over the project. We decide the scope and can customize the plan to our budget. We are grateful to have worked with Richard, and highly recommend him!"
Entertainment center
Entertainment center
Architectural details
computer room left
computer room right

+11

Response time8 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for CLASSICAL HOMES LLC
CLASSICAL HOMES LLC
4.4(
7
)
ArchitectArchitect - For Business

Serving Merrimack, NH and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"Hossein Vahedi of CLASSICAL HOMES LLC designed our house and supervised the construction process. He was friendly and easy to work with, had many creative ideas, and really tried to understand our needs. He worked well with our general contractor. His price is very reasonable. I highly recommend him to people who want to create their own dream house, but need professional help to translate their ideas to doable project."
Additional Photos
Additional Photos
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+38

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Monadnock Design & Drafting
Monadnock Design & Drafting
4.4(
7
)
Draftsperson/CADD

Serving Merrimack, NH and surrounding areas

Approved

In business since 2000

Free estimates

Small jobs welcome

"Dennis did an excellent job. He was fast, accommodating (drove a long distance to measure my property, on short notice) and accurate. He was patient, explaining things to me that would help me use the drawings effectively. He recommended additional online tools for me to use to design my furniture layout. I highly recommend him."
Building Section
Structural Sections & Details
Stair Detail
Response time2 days
7 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for APEX Drafting LLC
APEX Drafting LLC
3.9(
7
)
Draftsperson/CADDArchitect

Serving Merrimack, NH 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
Avatar for UCS Construction and Design
UCS Construction and Design
New to Angi
Draftsperson/CADD

Serving Merrimack, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

We are new company just getting started I have a team of licensed professionals I work with. We are very well rounded in our field of work. Doing everything from small handyman repair and installation work to full remodels and renovations. No matter how big or small the job is we are here to help and give great prices and discounts to help home owners and other professionals. Always leaving up to code, quality work, and satisfied customers behind. We also do custom work such as Accent/feature walls that give a home that unique and elegant feel to it.

Avatar for EMPC Construction
EMPC Construction
New to Angi
Draftsperson/CADD

Serving Merrimack, NH and surrounding areas

Approved

Hi, I’m EDUIN,\n\nI am an experienced handyman with a professional background in architecture and property maintenance. This unique combination allows me to look at your home not just as a set of repairs, but as a complete structural system. I bring a high level of technical precision to every task.\n\nMy Experience:\n\nI have spent years working across both the design and physical upkeep sectors. My transition from architecture to hands-on maintenance means I understand the "why" behind how your home was built, which helps me solve problems more effectively than a standard quick-fix approach. From structural integrity to aesthetic finishes.\n\nWhere I Work\n\nI am based in Cape Cod, MA, and I proudly serve the local community. I am also available to travel to surrounding areas within a 30-mile radius for larger projects or scheduled maintenance.\n\nSpecial Skills & Expertise;\n\nArchitectural Insight: Ability to read blueprints and understand the structural needs of older and modern homes.

Avatar for Terraform Development & Design LLC
Terraform Development & Design LLC
4.0(
1
)
ArchitectDraftsperson/CADD

Serving Merrimack, NH and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Offers commercial services

Terraform Development & Design LLC, delivers expert permit-ready architectural plans and drafting services nationwide. With 8+ years of experience and hundreds of clients across all 50 states, we create code-compliant residential and commercial construction documents that get approved fast and built right. \nFrom site plans, floor plans, elevations, structural & foundation drawings to MEP coordination, full construction sets, 3D renderings, interior design, solar PV layouts, and precise material takeoffs - we handle it all. Fast 4-6 week turnaround, 3 design revisions included, free revisions for city redline changes, transparent pricing (starts at $2,000), and direct partnerships with licensed engineers for stamps in every state.

997 neighbors recently requested a quote
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Structural Engineering FAQs, answered by experts

The best way to determine if ceiling cracks are structural is to hire a ceiling contractor to inspect the cracks and provide a professional opinion. That said, you might be able to make an educated guess based on the size and appearance of the crack. Larger cracks, cracks accompanied by sagging or discoloration, and cracks that travel from the ceiling down the walls are all signs of structural issues.

No, squeaky floors do not always mean there is structural damage. The noise is often caused by friction from issues like loose floorboards, gaps between the subfloor and joists, or loose subflooring. While many squeaks are harmless, persistent or worsening noise could indicate a more severe problem. If you notice other signs of structural damage—such as soft or sagging floors, cracks running from the wall to the ceiling, or horizontal cracks in your foundation—it's best to have a professional inspect your floor to determine the root cause.

While concrete walls do not need to "breathe" in the traditional sense of the word, they do require waterproofing and dehumidifying methods, particularly in basements below the water table. Concrete both contains moisture from its initial installation and can absorb water when exposed. Ensuring proper basement ventilation , installing a vapor barrier, and controlling water exposure are all important tasks.

Structural engineers typically conduct inspections during a home sale or renovation, looking for signs of structural damage in various structures throughout the building, such as load-bearing walls, joists, beams, roofing trusses, foundations, and chimneys. Some of the warning signs that structural engineers check for include:

  • Dry rot

  • Infestation

  • Shifting or cracking foundations

  • Erosion

  • Water damage

  • Sagging, shifting, or damaged walls, ceilings, or roofing support

Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.

The Merrimack, NH homeowners’ guide to structural engineering services

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