Home Addition Contractors Serving Greater Boston

Services » Home Additions

At Flaherty Contracting Inc., we specialize in designing and building high-quality home additions that blend seamlessly with your existing property. As trusted home addition contractors serving Greater Boston, we create expanded living spaces that feel natural, functional, and tailored to your family’s needs. From new bedrooms and expanded kitchens to full-scale second-story additions, our team manages every stage with precision and care.

Whether you’re growing your living space for comfort, planning a multi-generational home, or simply wanting more room to enjoy everyday life, we deliver thoughtfully designed additions built to the highest craftsmanship standards. As a leading accessory dwelling unit builder, we also create ADUs and in-law suites that offer privacy, convenience, and long-term value—perfect for extended family, rental opportunities, or modern flexible living.

As specialists in Boston home expansions, we understand the structural, architectural, and zoning considerations unique to Boston’s neighborhoods. Our frame-to-finish approach ensures your addition is structurally sound, aesthetically cohesive, and fully aligned with your home’s existing character. With Flaherty Contracting, your home addition is more than extra square footage—it’s a well-integrated extension of your lifestyle.

Greater Boston custom home builder working on new home construction

Why Homeowners Choose Our Frame-to-Finish Addition Expertise

Seamless Integration

Additions designed to match your home’s architecture, flow, and aesthetic.

Clear, Transparent Communication

Consistent updates and guidance throughout every stage of the expansion.

Full Design & Build Coordination

One unified team handling planning, design, permitting, and construction.

On-Time, On-Budget Delivery

Clear timelines and organized project management prevent delays.

Premium Craftsmanship

Every structural and finish detail is completed with long-lasting quality.

Versatile Addition Options

From ADUs to second-story additions, we build spaces for every lifestyle.

Our Frame-to-Finish Home Addition Services Include

accessory dwelling unit builder

Site evaluation & addition feasibility

Architectural planning & design coordination

Second-story additions & full-room expansions

Garage conversions & attached additions

Accessory Dwelling Units (ADUs) & in-law suites

Kitchen & main-level expansions

Roofline modifications & exterior siding integration

Energy-efficient windows & doors installation

Mechanical, electrical & plumbing integration

Custom interior layouts & finish carpentry

Final detailing, walkthrough & turnover

As experienced home addition contractors, we ensure each expansion enhances comfort, functionality, and long-term resale value while blending beautifully with your Boston home.

Let’s Build a Space That Elevates Your Entire Home

No matter the size or scope of your project, whether you're expanding your living area, transforming outdated rooms, or reimagining your home from the ground up, our team guides you through every step with clarity and confidence. At Flaherty Contracting, we bring skilled craftsmanship, efficient project management, and trusted Greater Boston expertise to every build.

Let’s create a beautifully designed, highly functional space that enhances the way you live today and adds long-term value to your home.

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Flaherty Contracting

Let’s Build Something Exceptional Together

Share your project details, and our team will reach out to discuss your vision, timeline, and next steps. Whether you’re planning a new custom home, an addition, or a full renovation, we’ll guide you through every stage from initial design to final walk-through. Our goal is to make the process smooth, transparent, and tailored to your needs.

Let’s turn your ideas into reality with craftsmanship, quality, and care that stand the test of time.

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