Home Additions in Buffalo, NY

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More space. Better flow. Built to match your home.

The best additions feel like they have always been part of the house. Rooflines meet cleanly, finishes align, and the new rooms work with your daily routine. Ivy Lea Construction designs and builds home additions across Buffalo and Western New York with thoughtful planning, careful craftsmanship, and clear communication from the first conversation to the final walkthrough.

Home addition
home additions

Design-build remodeling that feels seamless

Our design-build approach brings planning, selections, and construction together under one accountable team. That means faster decisions, fewer surprises, and a finished space that looks right and lives even better. If you are comparing home remodeling services or looking for a remodeling contractor who can manage both design and construction, we make the process straightforward.

What We Build

Kitchen additions & bump-outs

for more prep space, storage, and natural light

Primary & guest suites

with walk-in closets and spa-style baths

Family rooms & great rooms

that open to patios, decks, or porches

Second-story additions

to add bedrooms, baths, or a quiet office

Sunrooms & four-season rooms

with high-performance windows and insulation

Garage additions

attached or detached, with storage lofts or workshop space

Whether you need a room addition contractor for a single space or home addition contractors for a full expansion, our team handles the full scope with care.

Permits, codes, & structural details

Additions touch structure, mechanicals, and finishes. We handle site plans, permits, and inspections, and we build to current codes. That includes load paths and beam sizing, energy code insulation and air sealing, egress and safety glazing, and the right HVAC, plumbing, and electrical. As one of Buffalo’s trusted home renovation contractors, we focus on comfort, durability, and clean details you can see and feel.

Outdoor
Outdoor Addition 3

Tie in that looks seamless

A successful project blends old and new. We match siding profiles, window proportions, trim, and interior finishes so nothing looks tacked on. Proper flashing, water management, and air sealing at every connection protect the structure and help the addition perform through Buffalo winters and humid summers. This is where experienced home remodeling companies stand out.

Let’s plan your addition

An addition is a chance to improve performance. We specify the right insulation levels for Western New York, seal air leaks before finishes go in, and size systems with load calculations. The result is a quiet, comfortable room in January and July.

Request An Estimate

If you are ready to add space that looks and lives like it belongs, we are here to help. Whether you are comparing home addition builders, looking for a home addition construction company, or narrowing down remodeling in Buffalo, start with a conversation.

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FAQs About Additions

Can you make the addition look like it has always been there?

Yes. We match rooflines, siding profiles, trim, window proportions, flooring transitions, and interior finishes so the old and new flow together without awkward seams.

Will I need to move out during construction?

Many clients remain in the home. We set up dust control, safe paths, and clear work zones. For major kitchen or bath tie-ins, a short off-site stay can be more comfortable.

What affects the cost of a home addition the most?

Foundation type, roof complexity, structural spans, kitchen or bath fixtures, window and door packages, and finish selections. Early clarity on layout and finishes keeps budgets predictable.