Energy-Efficient Replacements
Upgrade to energy-efficient, custom-fit windows that lower your bills, reduce noise, and transform your home's look — installed by certified professionals with meticulous attention to detail.
The most popular style for Long Island homes — both sashes tilt in for easy cleaning, with excellent ventilation and a classic look.
Crank-operated windows that seal tightly when closed for superior energy efficiency and unobstructed views.
Create a stunning focal point that extends your living space, floods rooms with natural light, and adds architectural interest.
Low-E coated, argon-filled double and triple-pane glass that dramatically reduces energy costs and blocks harmful UV rays.
Hurricane-rated windows built to withstand severe weather — essential protection for coastal Long Island properties.
Most window replacements are completed in a single day with minimal disruption. We protect your home and clean up thoroughly.
Replacement windows are only as good as the installation. Here's exactly what our crews deliver on every job.
Modern glass packages do far more than look good — they change how your home feels in every season.
Every windows job is different. Pick the page that matches what your home needs and see exactly how we handle it.
Insert replacement reuses your existing frame; full frame removes it entirely. Learn which fits your Long Island home, then get a free on-site quote.
Double-hung windows remain the most common style on Long Island homes for good reason. See how they work and get a free on-site replacement quote.
Casement windows crank outward for a tight seal and unobstructed ventilation. See if they suit your Long Island home and get a free quote.
Bay and bow windows add depth, light, and interior space to Long Island homes. See how they differ and get a free on-site installation quote.
Sliding windows offer wide views and simple side-to-side operation. See if they fit your Long Island home and request a free measured quote.
Awning windows hinge at the top and open outward, ideal for ventilation even in light rain. Get a free quote for your Long Island home.
Arched, angled, and specialty-shaped windows add architectural character to Long Island homes. Get a free on-site quote for a custom fit.
Basement windows deal with moisture, security, and sometimes egress code needs. Get a free on-site basement window quote in Long Island.
Vinyl windows offer low-maintenance performance for Long Island homes without painting or sealing upkeep. Get a free replacement quote today.
Fiberglass windows offer strength and stability for larger openings on Long Island homes. Get a free measured replacement quote today.
Service Area
AP Siding & Windows provides professional window services to homeowners across Suffolk County, Long Island. Every project is handled by our own trained crews — never subcontracted out.
We serve homeowners throughout Suffolk County, Long Island — from the North Shore to the South Shore and out east.
Because our crews are based locally, estimates are scheduled quickly and projects stay on schedule year-round.
Every installation is specified for Long Island's coastal wind, salt air, snow load, and nor'easter conditions.
Common Questions
Contact us today for a free, no-obligation estimate. We'll assess your needs and provide a transparent quote.
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