Structural Remodeling for Greater Boston & MetroWest Homes

Structural remodeling that transforms how your home works

Many of the most impactful home improvements involve changing the bones of the house. Removing a wall to connect the kitchen and living room. Adding a second story to a ranch. Extending the foundation to create a new family room. These are structural remodeling projects, and they require a team that understands both the engineering and the craft involved in modifying a home's load paths, framing systems, and foundations.

At RD Horizon Builders, structural remodeling is a core part of what we do for homeowners across Greater Boston and MetroWest. We coordinate with licensed structural engineers, manage the permitting process with local building departments, and execute the construction with the precision that structural work demands. Every structural modification begins with a thorough assessment of the existing conditions, because understanding what the house is doing structurally right now is the foundation for changing it safely.

Load-bearing wall removal

Opening up a floor plan by removing a load-bearing wall is one of the most requested structural modifications in Greater Boston homes. Many homes built before 1970 have compartmentalized layouts with walls separating the kitchen, dining room, and living room. Removing one or more of these walls can dramatically change how the home feels and functions. The process involves temporarily supporting the loads above, removing the wall, and installing an engineered beam, typically steel or laminated veneer lumber, that carries the same loads across the new open span. The beam is sized by a structural engineer and concealed within the ceiling framing so the finished result is a clean, open space with no visible structural elements.

Open floor plan conversions

An open floor plan conversion often involves more than a single wall removal. It may require relocating plumbing, ductwork, and electrical systems that run through the walls being removed. It may also involve leveling floors that were at slightly different heights in separate rooms, or extending finish materials across the newly combined space. We plan these conversions comprehensively so that the structural, mechanical, and finish work all come together in a coordinated sequence. The goal is a space that looks and feels like it was always designed as one room.

Room additions

When a home does not have the square footage to meet a family's needs, a room addition extends the footprint of the house. Additions require new foundation work, framing that ties into the existing structure, roofing that integrates with the existing roof lines, and careful attention to how the new space connects to the rest of the home. We handle additions of all sizes, from a single-room bump-out to a multi-room wing. Every addition is designed to look like an original part of the house rather than a bolted-on afterthought, with matching siding, trim, and roofing materials.

Second-story additions

Adding a second story to a single-story home is one of the most transformative structural projects available. It can double the living space without expanding the home's footprint, which is especially valuable on smaller lots common in Brookline, Cambridge, Somerville, and other densely built communities. Second-story additions require a thorough evaluation of the existing foundation and first-floor framing to confirm they can support the additional loads. In some cases, foundation reinforcement or first-floor structural upgrades are needed before the new floor can be built. We manage the engineering, permitting, and construction for the entire scope.

Foundation repair and modification

Many older Greater Boston homes have stone or block foundations that show signs of deterioration, water infiltration, or settlement. Foundation repair can involve crack injection, wall stabilization, waterproofing, or in more extensive cases, full foundation replacement. We also perform foundation modifications for homeowners who want to convert a crawl space into a full basement or lower the basement floor to gain headroom. These projects require temporary support of the house structure while the foundation work is completed and are managed with careful staging to maintain structural integrity throughout the process.

Structural beam installation

Beyond wall removal projects, structural beams are used to address sagging floors, increase spans for open ceilings, support new roof configurations, and reinforce framing that has deteriorated or been damaged. We install steel I-beams, engineered wood beams, and laminated veneer lumber depending on the load requirements, span distances, and architectural intent. Every beam installation is designed by a structural engineer and inspected by the local building department to ensure code compliance.

Dormer additions

Dormers add headroom, natural light, and usable floor area to upper-level rooms that are limited by roof slope. Shed dormers provide the most added space, while gable dormers add architectural interest and targeted daylight. We design dormers that complement the home's existing roof lines and exterior character, with proper flashing details and structural connections that prevent water intrusion and ensure long-term performance.

Chimney removal

Many older homes have chimneys that are no longer connected to functional fireplaces or heating systems. Removing an unused chimney frees up floor space on every level of the home and eliminates a common source of water intrusion and masonry maintenance. The process involves dismantling the chimney from the roofline down, patching the roof and each floor, and redistributing any loads that the chimney mass may have been carrying. We handle the structural patching, roofing, and finish work to leave no trace of the former chimney.

Structural engineer coordination

Every structural modification requires engineering calculations and stamped drawings, both for safety and for building permit approval. We work with licensed structural engineers throughout the design phase, coordinating field measurements, existing conditions documentation, and proposed design intent so the engineer can produce accurate plans. This coordination is built into our process, so homeowners do not need to hire or manage an engineer separately. The engineering review covers load paths, connection details, material specifications, and temporary shoring plans to ensure that the work can be executed safely and in compliance with the Massachusetts State Building Code.

What our structural remodeling service includes

• Load-bearing wall removal with engineered beam installation
• Open floor plan conversions with coordinated mechanical relocation
• Room additions with foundation, framing, and finish integration
• Second-story additions with foundation assessment and reinforcement
• Foundation repair, waterproofing, and basement conversions
• Structural beam installation for floor, ceiling, and roof support
• Dormer additions for added headroom and natural light
• Chimney removal with full structural and finish patching
• Licensed structural engineer coordination and permit management