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Bob Dennis - Structural Engineer
4.4(
48
)
Engineer - Structural

Serving Lancaster, MA and surrounding areas

Approved

In business since 1960

Free estimates

Customers say: Quality work

"Was having a potential home inspected for structural integrity. Spoke to Bob on the phone a few times. Since the home’s basement primarily consisted of a giant crawl space, I was told Don would do the job. Ultimately, the day before the scheduled inspection, I couldn’t get ahold of Don. Bob said Don was “feeling sick,” so the job was off. Frustrating, but a blessing in disguise because we ended up going with Colonial Restorations (the home was built in the 1800s). Colonial Restorations, LLC is the “go-to” for older home inspections and repairs. Tom was amazing (his son Brad is soon to take over the business)! They were both prompt, professional, and thorough. Very pleased with their work and thorough report/estimate. Colonial Restorations, LLC PO Box 868 Fiskdale, MA 01518 508-735-9900"
Install Steel Beam
footing hole
Termite damage
Structural Repair
7 neighbors recently requested a quote
Recommended by92%of homeowners
Taddonio Engineering, LLC
4.8(
347
)
Engineer - Structural

Serving Lancaster, 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 rate86%
382 neighbors recently requested a quote
Avatar for LMCA Architecture
LMCA Architecture
5.0(
9
)
ArchitectDraftsperson/CADD

Serving Lancaster, MA and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Luis went well beyond what the average architect would. He visited the site many times to make sure that the owners vision was clear represented on the architectural renderings. True a professional in all respects Jeffrey B."
Bedroom
Kitchen/Living Room
Bathroom
Exterior
Exterior Render

+21

4 neighbors recently requested a quote
Avatar for Szymanski Architect LLC
Szymanski Architect LLC
5.0(
6
)
ArchitectDraftsperson/CADD

Serving Lancaster, 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
2 neighbors recently requested a quote
Avatar for Guzman Architects, LLC
Guzman Architects, LLC
5.0(
6
)
Architect

Serving Lancaster, MA and surrounding areas

Approved

In business since 2001

Free estimates

Offers commercial services

"I hired Jose to design and draw our kitchen remodel. He used his experience, knowledge, and creativity to come up with a great design for an old house. He was available when questions came up and changes were needed. He was with us for the entire project was complete and inspections complete."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

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

Serving Lancaster, 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
6 neighbors recently requested a quote
Recommended by83%of homeowners
Aesthetic Images
4.7(
27
)
Architect

Serving Lancaster, MA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

We have just heard from Angie's that you are in need of building design services. We are architects who work in the Metro Boston area and would be happy to assist you in your building design needs. Please call Steven Petitpas at 617-323-6081, the company's founder, at your earliest convenience to arrange a walk-through of your project. \n\nAll residential projects are fixed fee & most projects can be done between $4,900 & $5,900. Please visit our web site www.Boston-Architect.com and fill out a service request form.\n\nMassachusetts only permits registered architects licensed by the state to perform architectural design services. Only a licensed professional can legally be called an Architect. Our Massachusetts architectural registration is #8391, which can be verified on the board of registration Mass web site.\n\n\n

Front Elevation
Garden Temple
House Before
Historic Renovation
New Construction

+16

Response time3 days
18 neighbors recently requested a quote
Recommended by13%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.7(
126
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Lancaster, 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%
68 neighbors recently requested a quote
Avatar for LMC Drafting/Design
LMC Drafting/Design
5.0(
6
)
ArchitectDraftsperson/CADD

Serving Lancaster, 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 rate86%
1 neighbors recently requested a quote
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Structural Engineering questions, answered by experts

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.

First, most contractors will have a structural engineer create a report and plan for your project to ensure it’s safe to cut into the load-bearing wall. The contractor will then excavate around the wall, if necessary, measure the opening—allowing for additional space to fit and level the door, and then cut the doorway out. They will likely install a steel lintel as a header over the door for support. Once the doorway is cut out, they’ll demolish the concrete using sledge hammers and masonry chisels, clean up the surrounding concrete, and seal around the door with masonry mortar. 

The National Association of Home Builders requires repair of any foundation crack of more than one quarter of an inch, although local regulations may vary. In general, any visible crack that is growing in size, allowing water through, or that you have just noticed, is a good reason to call a structural engineer. Cracks can be a sign of a sinking foundation, so an inspection is a good idea for your peace of mind.

Yes, you can put a doorway in a structural wall; in fact, most exterior doors are set into structural walls. The project is a little more challenging than installing a door in a non-load-bearing wall because you need a structural engineer to assess the wall and make sure it’s safe to create a wall opening. Your engineer’s report will include instructions for your contractor on how and where to install additional supports, like steel headers above the door, to distribute the weight above to the wall on either side of the door.

No, beams are the primary load-bearers for flooring or roofing systems, and they distribute the weight of the structure to your foundational supports, while joists bear far less weight and distribute their loads to the beams. Beams are usually thicker and longer, and they have support posts or foundation walls beneath them for support.

The Lancaster, MA homeowners’ guide to structural engineering services

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