Custom Windows
& Doors
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Custom Designs, Premium Brands & Professional Installation
Energy-Efficient Windows & Doors for Long Island Homes. Upgrade Your Home with Superior Windows & Doors from JA Exterior Finishes.
JA Exterior Finishes delivers precision installations of high-performance windows and doors that improve energy efficiency, security, and curb appeal. With top brands and custom designs, we help Long Island homeowners achieve beautiful, lasting upgrades.
Unlock lasting protection and enhanced curb appeal with JA Exterior Finishes. We install high-impact, energy-efficient siding designed to withstand Long Island’s climate—so your home not only stands strong but looks stunning for decades to come.
Our Window Solutions
- Replacement Windows Modernize your home with double-hung, casement, sliding, bay, bow, and specialty windows.
- Custom Windows Tailored sizes, shapes, and finishes designed to elevate your home’s curb appeal.
- European Windows Featuring Drutex tilt-and-turn systems that deliver unmatched style, versatility, and efficiency.
Our Door Solutions
- Entry Doors Secure, stylish, and customizable—available in fiberglass, steel, and wood finishes.
- Patio & Sliding Glass Doors Seamless indoor-outdoor living with smooth operation and energy efficiency.
- French & Custom Doors Elegant, timeless options that enhance both function and aesthetics.
Custom Windows & Doors
We specialize in all levels of window and door installation. From classic to contemporary, our team customizes solutions for your home’s unique architecture. We proudly work with industry-leading brands, including Andersen, Pella, Marvin, United, MI, and Drutex European Windows—as well as many others—ensuring unmatched quality and choice.
Why JA Exterior Finishes Is the Smart Choice
- Engineered for Long Island’s Climate Our windows and doors are designed to handle the Northeast’s temperature swings, coastal weather, and moisture conditions—protecting your home year after year.
- Energy Savings You Can See With ENERGY STAR® certified products and insulated glass technology, we help you lower energy bills, reduce drafts, and enjoy a quieter, more comfortable home.
- Trusted Brands & Premium Materials From Andersen wood-clad windows to Drutex’s advanced European tilt-and-turn models, we source only from trusted manufacturers—giving you long-term performance backed by strong warranties.
- Professional, Certified Installations Our installers are trained in precision fitting, sealing, and finishing techniques that ensure long-lasting efficiency and flawless operation.
Get a free quote
All Services
Speak With A Knowledgable Expert
Call us anytime to discuss your project and gain expert advice.
We can help
What Sets Us Apart
We proudly serving Nassau and Suffolk Counties—including Huntington, Smithtown, Patchogue, and beyond for over 30 years.
- Energy-Efficient Systems – Designed to meet or exceed ENERGY STAR® standards.
- Lifetime Warranty Options – Available on many products and installations.
- Wide Brand Selection – Andersen, Pella, Marvin, MI, United, Drutex, and more.
- Local Experience – Serving Nassau & Suffolk with solutions tailored to Long Island homes.
- Flexible Financing – Options that make upgrading affordable.