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Business Details
31 Years
experience
Trusted Home Remodeling Experts in Long Island
Since our founding in 1995, Window World of Long Island has remained committed to providing superior home improvement solutions through our industry-leading windows, doors, siding, and roofing products. Our team of professionally trained craftsmen delivers energy-efficient, durable replacements tailored to meet the unique needs of Long Island homeowners. Backed by a best-in-class limited lifetime warranty and ENERGY STAR certification, we prioritize customer satisfaction through transparent pricing, expert installation, and exceptional service.

Our dedication to quality extends beyond productswe actively support local communities through partnerships with nonprofit organizations. With over 25 years of experience, we combine technical expertise with personalized care to ensure every project enhances home value, comfort, and aesthetics while meeting rigorous environmental standards.
Services
Windows Doors Siding Roofing Sash Replacement
Details
  • Year established: 1995
Highlights and features
  • We offer a best-in-class limited lifetime warranty on all products.
  • Our team provides professional installation by factory-trained experts.
  • ENERGY STAR-certified products reduce energy costs year-round.
  • We serve Long Island and surrounding areas with local expertise.
  • Our products are EPA Lead-Safe certified for safety and compliance.
Associations and certifications
  • ENERGY STAR
  • Good Housekeeping Seal
What people say
Professional and knowledgeable Great experience Excellent service Energy savings Lifetime warranty
Services
Windows
Energy-efficient replacement windows enhance home comfort and reduce utility costs. Our vinyl and wood options provide durability against harsh weather while improving curb appeal. Professional installation ensures precise fitting and long-term performance. Backed by a lifetime warranty, these windows meet ENERGY STAR standards for superior insulation.
Doors
Custom entry, patio, and storm doors combine security with aesthetic appeal. Fiberglass and vinyl materials resist wear while optimizing thermal efficiency. Our installations include weatherstripping to prevent drafts and lower energy bills. Lifetime warranties cover all door systems for lasting value.
Siding
Insulated vinyl siding protects homes from extreme weather while cutting energy costs. Available in multiple styles and colors, it offers low maintenance and long-term durability. Professional installation ensures proper sealing and alignment for maximum efficiency.
Roofing
Owens Corning roofing systems provide durability against storms and UV damage. Energy-efficient shingles improve attic insulation, reducing cooling costs. Professional installation includes ventilation optimization and a 50-year warranty for comprehensive protection.
Sash Replacement
Fast sash replacement restores window functionality after damage. Services include glass repair and seal replacement to eliminate drafts. Factory-trained technicians ensure precise fitting for continued energy efficiency and warranty compliance.
Questions
Are Window World windows energy-efficient?
Yes, our windows are ENERGY STAR-certified with Low-E glass to reduce energy costs and improve insulation.
Will replacing windows lower my energy bills?
Yes, energy-efficient windows minimize air leakage, reducing heating and cooling expenses by up to 20%.
Do you offer professional installation?
Yes, all projects include expert installation by factory-trained technicians for optimal performance.
What areas do you serve?
We serve Long Island, Nassau County, Suffolk County, and surrounding New York areas.
Are financing options available?
Yes, we offer flexible financing plans subject to credit approval for qualifying customers.
Do your products come with warranties?
All products include our limited lifetime warranty covering materials and workmanship.