Alpha Windows & Siding is a home improvement company that specializes in replacement windows and vinyl siding. The leader on Long Island and New York. We will manufacture and install your custom replacement windows, vinyl siding, and roofing on Long Island, New York, Brooklyn, Queens, the Bronx, Westchester, Manhattan, Staten Island, Nassau, Suffolk and the rest of the Tri-State area! All Alpha installation crews are locally based, factory trained and every job is backed by extensive, long-term warranties.

Highlights, Specialties & Features

  • Windows
  • Siding
  • Roofing

Serviced Areas

  • Long Island, New York

Payment Options

  • Diner's Club, Money Orders, Discover, Cash Only, Financing Available, Personal Checks, Debit Cards, MasterCard, VISA

Contact Details

  Person Alpha Windows & Siding
  City Massapequa , NY
  Zip Code 11758
  Address 4350 Sunrise Highway
  Phone Number (516) 308-7030

Business Representative

Alpha Windows & Siding

  • I would recommend this business
  • Price, Quality, Fast, Courteous

Contracted Alpha to replace the windows on my home before the winter season and instantly noticed a difference. Was the right decision and price for the work was good. I feel as though the work and price paid were worth it. Definitely would recommend if looking for a company to replace your windows.

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

I recently purchased windows for my new home with your shop at home service. I have to come right out and tell you how pleased I am with the whole experience. I hope to get my house sided next year and will be coming back to Alpha with my business.

Alpha has replaced numerous old windows over the years and I am extremely happy with the quality of your product. Your installers had excellent manners, and cared about the work they were doing.

Our home went from a shambled peeling existence to a modern clean and neat exterior, itís no longer a sore thumb in the neighborhood. Itís like living in a new home without having to pack and move!

Your crew was punctual for their appointment and worked with a degree of professional skill, cleanliness and consideration that would have made a team of surgeons proud. In view of the colder weather, the difference in room temperature is already noticeable.