Home Additions in Westchester County, NY
AGA Contracting Group designs and builds home additions for homeowners throughout Westchester County, from Harrison and Bedford to Armonk and Pleasantville. Whether you need a new bedroom, expanded living space, or a second story addition, we handle every detail — from foundation to final finish — so your addition blends seamlessly with your existing home.
Our Home Addition Process
Free In-Home Consultation
We walk your property, discuss your vision, and talk through your budget. No pressure, no obligation.
Design & Detailed Estimate
You'll receive a clear written estimate covering materials, labor, and timeline — no surprise costs later.
Permits & Construction
We manage the entire permitting process and handle construction from foundation to final finish, keeping your home as livable as possible throughout.
Final Walkthrough
We walk through the finished addition with you to make sure every detail meets your expectations before we call it done.
What's Included in Your Home Addition
Foundation & Framing
Solid foundation work and framing built to code, designed to blend seamlessly with your existing structure — common among the larger properties in Bedford and Armonk.
Roofing & Exterior
Matching rooflines and exterior finishes so your home addition looks like it was always part of your house.
Plumbing & Electrical
Licensed subcontractors handle all plumbing and electrical work for your new space.
Insulation & Drywall
Properly insulated and finished interior walls for comfort and energy efficiency.
Flooring & Finishes
Flooring, trim, and finishes that match or complement your existing home.
Permits & Inspections
We manage the full permitting and inspection process with your local municipality.
Home Addition FAQs
How much does a home addition cost in Westchester County?
Home addition costs in Westchester County typically range from $80,000 to $250,000 or more depending on size, scope, and finishes. Whether you're in Bedford, Armonk, or anywhere else in the county, we provide a detailed written estimate before any work begins so you know exactly what to expect.
Do I need a permit for a home addition in Westchester County?
Yes, home additions require permits and inspections from your local municipality. AGA Contracting Group manages the entire permitting process for you.
Can I add a second story to my home?
Yes, second story additions are one of our specialties. This requires structural engineering review, which we coordinate as part of the project.
Will my addition match the rest of my house?
Yes, we design every addition to blend seamlessly with your home's existing rooflines, siding, and architectural style.
Ready to Add On to Your Home?
Contact AGA Contracting Group today for a free in-home estimate. We serve homeowners throughout Westchester County, NY including White Plains, Yonkers, Scarsdale, New Rochelle, Harrison, and surrounding towns.
Call us directly: 914-414-7550