Foundation & Addition Engineering Across Massachusetts
Foundation, Dormer & Addition Engineering

Structural Engineering for Foundations, Dormers, Additions & Sunrooms

Whether you're stabilizing a settling foundation or adding a second story, dormer, sunroom, or finished basement, Lebra Engineering & Design delivers PE-stamped, permit-ready structural drawings across Massachusetts.

Foundation Repair Design Dormers & Second Stories Sunrooms & Additions Basement Finishing

PE-reviewed · walk-through from $800 or a written proposal within 1 business day.

Get Your Free Project Review

Tell us about your foundation, addition, or dormer project.

No obligation. We respond within 1 business day.

PE-Stamped Structural Designs
Foundation Repair Specialists
3D Scan-Verified Existing Conditions
2–3 Week Design Turnaround
What We Design

Structural Solutions for Every Project Type

Foundation Repair & Underpinning

  • Crack stabilization & wall replacement design
  • Underpinning for settlement issues
  • Waterproofing & drainage coordination

Home Additions

  • Single & multi-story addition framing
  • New foundation design & tie-ins
  • Load path & header calculations

Dormers & Second Stories

  • Roof & ridge structural modification
  • Existing foundation load evaluation
  • Egress & ceiling height compliance

Sunrooms & Three-Season Rooms

  • Foundation & framing design
  • Snow & wind load calculations
  • Cost-effective, code-compliant options

Basement Finishing

  • Egress window & header design
  • Structural modifications for open floor plans
  • Moisture & waterproofing considerations

Retaining Walls & Site Structures

  • Retaining wall & grading design
  • Drainage & stormwater coordination
  • Pool & landscape structure support
Our Process

From Existing Conditions to Permit-Ready Plans

1

Free Consultation

We discuss your goals, budget, and existing structure.

2

Site Visit / 3D Scan

We assess existing conditions and structural capacity.

3

Structural Design

PE-stamped drawings covering foundation, framing, and loads.

4

Permitting Support

We prepare code-compliant, permit-ready documents for your town.

5

Construction Support

We remain available for RFIs and field questions during the build.

Planning a Foundation Repair or Addition?

Send us your property and the work you're considering. We'll come back with a written proposal — scope, fee, and schedule — typically within 1 business day.

Talk to an Engineer About My Project (781) 540-0337
Representative Work

Recent Foundation & Addition Projects

Foundation underpinning construction with new concrete piers beneath an existing stone foundation
Foundation Repair

Foundation Underpinning

Structural repair design stabilizing a settling fieldstone foundation for a 19th-century farmhouse.

Completed shed dormer and second-story addition
Dormer Addition

Shed Dormer & Second Story

Full structural redesign of roof framing and foundation reinforcement for an added second story.

Completed rear family room addition
Home Addition

Rear Family Room Addition

New foundation and framing design tying a 400 sq. ft. addition into the existing home structure.

Illustrative examples of the project types we handle across Massachusetts. Not specific client engagements.

Why Homeowners & Contractors Choose Lebra

Built to Last, Designed to Permit

Fewer Field Surprises

3D scanning confirms existing conditions before we finalize design.

Faster Permit Approval

Local MA code knowledge means fewer plan review rejections.

Cost-Conscious Design

We look for structurally sound, budget-friendly alternatives.

Contractor-Friendly Plans

Clear, buildable drawings your GC can execute with confidence.

Client Feedback

What Our Clients Say

5.0
★★★★★
36 Google reviews
See All Reviews on Google →
★★★★★

"As a remodeling contractor, having a structural engineer I can actually count on makes all the difference, and that's exactly what we've had with Marcelo and George at Lebra Engineering & Design. We've worked with them for over three years and they're our go-to on every project that needs structural support. They're responsive, efficient, and — most importantly — genuinely available when we need them. Remodels never go exactly to plan, and more than once we've hit a surprise after demo that meant rethinking the structural approach. Every time, Marcelo and George have jumped in quickly to help us modify the plan and keep the job moving. That kind of reliability is hard to find. Highly recommend them to any contractor or homeowner who needs structural engineering done right."

Jake Hubley
Jake Hubley
★★★★★

"Efficient and Effective Load-Bearing Wall Removal I recently hired Lebra Engineering to design a steel beam for a load-bearing wall removal project with a 26' - 6" span. I was thoroughly impressed with their service from start to finish. They prepared the necessary drawings and calculation reports for my building permit application with remarkable efficiency. Within a few short days, I had all the documentation I needed. Their work was professional, accurate, and clearly demonstrated their expertise in structural engineering. I wouldn't hesitate to recommend Lebra Engineering to anyone needing structural design services. Their combination of speed, quality, and expertise made the entire process smooth and stress-free."

Paulo Cesar
Paulo Cesar
★★★★★

"We had a great experience with Lebra Engineering & Design. Their engineers helped us improve the layout and functionality of our facility, and the design team brought creative ideas that truly enhanced the space. Highly recommend them for any project!"

Thomas Laskowski
Thomas Laskowski
★★★★★

"After working with Lebra Engineering & Design, I’m a true believer in their commitment to quality and excellence. They helped us with both the engineering and design aspects of a major renovation, and everything turned out perfectly. A great team to work with!"

Martin Marks
Martin Marks
★★★★★

"Top-notch engineers and designers! I had a great experience with Lebra Engineering & Design. Their team was always responsive, kept me in the loop, and delivered high-quality work on time. I’d definitely recommend them to anyone looking for engineering expertise!"

Jimmy Kulas
Jimmy Kulas
Foundation & Addition FAQ

Frequently Asked Questions

Do I need an engineer for a foundation repair?
In most Massachusetts towns, structural foundation repairs (underpinning, wall replacement, crack stabilization) require an engineer-stamped repair design as part of the building permit application.
Do dormers and additions require structural engineering?
Yes. Adding a dormer, second story, or addition changes the load path of your home, requiring engineered framing, header, and foundation calculations stamped by a licensed engineer for permit approval.
Can my existing foundation support a second-story addition?
It depends on the existing foundation's condition, size, and soil bearing capacity. We evaluate this directly, often using 3D scanning, before finalizing your addition design.
How much does structural design for an addition cost?
Costs vary with project scope and complexity. We provide a free, no-obligation quote after reviewing your goals and existing conditions.
Can you design a basement finish that includes a bedroom or living space?
Yes. We design egress windows, ceiling height compliance, and structural modifications needed to finish a basement as habitable living space under the Massachusetts building code.
Start Your Project

Get a Free Foundation or Addition Project Review

We'll review your goals and existing structure, and outline the fastest path to permit-ready plans.

(781) 540-0337  |  contact [at] lebraengineering.com

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