Long Island Windows

King Quality is Long Island’s only distributor of
gold label-certified Simonton 9800 windows.


Experience a lifetime of beauty, performance and energy efficiency.

Bring out the best in your home with elegant windows designed to shrink your heating costs and cut down noise. Our exclusive partnerships and affordable financing makes your dream of owning the highest rated windows a reality. We make our custom windows fit your house — rather than make your house fit the windows. It’s all part of the King Quality difference. Our new Long Island replacement windows are affordable, will help keep your home warmer and will be installed by our window installation professionals. 

In addition to new windows, King Quality also offers roofing, siding and gutter guard services. We serve Nassau and Suffolk counties in Long Island, NY. Contact us to schedule a free consultation. Your home deserves the best, call 631-533-5204 with questions.

We build our
windows tough
Double the strength means windows, screens and frames are guaranteed for life.
Cut your energy
costs all year
Exclusive insulated glass options maximize year-round comfort and minimize utility bills.
Stop thermal bridging
at the source
Multi-chambered construction fortifies your window frame with strength and durability.

Complement any décor

Stand out in the neighborhood with a wide range of designer options. Let our experts complement your exterior with a custom color or upgrade your windows with wood grain veneer. Our windows elevate the inside of your home just as much as the outside. Pull any room together with our premium-grade, decorative locks and lift handles available with twice the design options at half the price.


Quality we've made affordable.

One low monthly payment

We offer very affordable financing at 0% interest for the first 5 years. And approval in 30 seconds or less. Finance your project for up to 12 years with payments as low as 1% of the job cost per month.

More than 95% of our applicants get approved. So your dream home is just a quick phone call away.

Get Started

*Only on Simonton 9800 series, KingWall & Millenium 7 part roofing system.

4 Easy Steps to Royal Treatment

  • Speak to a specialist
    to see if you qualify.
  • Meet a professional
    inspector at your home
  • Get an estimate
    (Good for one year)
  • the hard part.
    picking a color