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Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)

Serving Jefferson, MA 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 time9 hrs
Response rate95%
Recommended by91%of homeowners
Taddonio Engineering, LLC
4.8(
346
)

Serving Jefferson, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Small jobs welcome

Credit card accepted

"In renovating our beach cottage in Warwick, RI we found the roof needed structural work. Building inspector required a structural engineered plan. Adam was easy to communicate with. He was timely with his plan and follow up inspection. He was also available by text and phone for questions during the project. He was great to work with!"
Response time1 day
Response rate85%
350 neighbors recently requested a quote
Avatar for Veitas and Veitas Engineers
Veitas and Veitas Engineers
4.9(
8
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2004

Credit card accepted

Offers commercial services

"After an unusual situation arose at my home, I was concerned about the possibility of structural damage caused by drilling and new construction at an adjacent lot. After receiving a recommendation for Veitas Engineers from a trusted source, I called and scheduled an appointment. I am so thankful that I did. I continue to be impressed with the amount of time that the two engineers spent at my house, closely inspecting the exterior and interior. Within days, I received a 16-page detailed report which included drawings, photographs, recommendations, and action items. I was so pleased when I saw that the action items were categorized as structural and non-structural, that is, that the engineers included items beyond my actual structural concerns. I used the report when working with a contractor to follow up on the recommendations and action items. The contractor was impressed with the quality, clarity, and scope of the report. I am so happy that I chose Veitas Engineers!"
South Shore Barn Reno
South Shore Barn Reno
South Shore Barn Reno
South Shore Barn Reno
South Shore Barn Reno

+5

Response time6 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Szymanski Architect LLC
Szymanski Architect LLC
5.0(
6
)

Serving Jefferson, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Offers commercial services

"We had an exceptional experience working with Michal on our house extension project. From the very beginning, he demonstrated an outstanding ability to translate our vision into a functional, beautiful design that seamlessly blends with the existing structure. His attention to detail, creativity, and deep understanding of both aesthetics and practicality made the entire process smooth and enjoyable. What truly stood out was his communication and responsiveness—he was always available to answer questions, provide updates, and offer thoughtful suggestions that improved the overall outcome. He collaborated effectively with our sub-contractors, engineer and interior designer and ensured that every stage of the project stayed on track, on budget, and in line with local regulations. The final result has exceeded our expectations. The new space feels light-filled, spacious, and perfectly suited to our family's needs. We receive compliments on it from many people! I wouldn't hesitate to rec"
Response time1 day
Avatar for Guzman Architects, LLC
Guzman Architects, LLC
5.0(
6
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2001

Free estimates

Offers commercial services

"We had an excellent experience working with Guzman architects,LLC. From the initial consultation through the final design, they demonstrated exceptional creativity, professionalism, and attention to detail. They took the time to understand our vision, incorporated our ideas thoughtfully, and provided innovative solutions that improved both the functionality and aesthetics of the project. Communication was clear and timely throughout the process, and they were always responsive to questions and feedback. Their expertise helped make a complex project feel manageable and stress-free. We are extremely pleased with the final result and would highly recommend their services to anyone looking for a talented and reliable architect."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

15 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Monadnock Design & Drafting
Monadnock Design & Drafting
4.4(
7
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2000

Free estimates

Small jobs welcome

"Dennis did an awesome job drawing up a basement in-law apartment for me. Iâ m a GC and will definitely be using him in the future. He was very responsive and gets the job done quickly."
Building Section
Structural Sections & Details
Stair Detail
Response time2 days
7 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.5(
106
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"They were excellent. They quickly made a draft that only needed 3 minor adjustments. The final product was exactly what I needed. They referred me to a structural engineer for review. The whole process took half of the time that they initially estimated. I would definitely use them again."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
50 neighbors recently requested a quote
Avatar for LMC Drafting/Design
LMC Drafting/Design
5.0(
4
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Customer service was optimal and thorough. All of my questions were answered In A clear and easy to understand way. Friendly and had a good understanding of my needs. Great job!"
Exterior Rendering
Open Space
Unit Type C
Unit Type A
Living Room/Kitchen

+42

Response time2 hrs
Response rate88%
2 neighbors recently requested a quote
Avatar for Seth Design Co., LLC
Seth Design Co., LLC
5.0(
2
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"I can not imagine a better architect to work with. Seth was attentive, detail oriented, exceptionally knowledgable, and prompt with his responses to every change we made. He went above and beyond, making calls on our behalf to engineers, getting pricing on windows and trusses. On top of all of that, he was extremely affordable, and I am certain he put in more hours than he charged us for. I can't imagine having done this project with out him."
Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
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Structural Engineering questions, answered by experts

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 primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.

Precast concrete can be reinforced with rebar, wire mesh, or other materials to improve its strength and add stability. Precast concrete for large construction projects is often pre-stressed as well for greater structural strength. Reinforced concrete is durable and strong, making it an ideal choice for many construction projects.

It's safe to assume that all exterior walls are load-bearing, or at least have load-bearing characteristics. Some older homes feature porches or bump-outs that don't rest on the home's foundation. However, they still must carry the weight of the roof section they support. Walls containing floor-to-ceiling glass or other non-structural elements must use post and beam configurations to meet load-bearing criteria.

Generally, you can tell if a home is bolted to the foundation by checking the foundation for plates. If you see that your foundational plates connect to wood or bolts protruding from them, this means that you have a bolted foundation. However, it's always wise to bring a home inspector in to confirm if your foundation is secure.

The Jefferson, MA homeowners’ guide to structural engineering services

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