About Us

A-1 Siding & Windows Niagara Ltd. is a family-owned and operated exterior renovation company based in Stoney Creek, Ontario. For over 25 years we've been helping homeowners across the Niagara Region and Hamilton area protect and improve their homes with quality siding, soffit, fascia, eavestrough, and more.

We started as a small home business in Thorold and grew through word of mouth — one satisfied customer at a time. Today we serve communities from St. Catharines and Niagara Falls to Grimsby, Welland, Fort Erie, and the greater Hamilton area. We're still family-run, and that means every job gets the same personal attention it always has.

We specialize in vinyl and aluminum siding, aluminum soffit and fascia, seamless eavestrough, downpipes, Alurex Gutter Guard, windows, doors, and exterior railings. We work with trusted Ontario brands including Kaycan, Gentek, and Mitten.

Why choose us:

• Over 25 years serving the Niagara Region and Hamilton area
• Family-owned and operated — you deal with the owners directly
• Experienced craftsmen dedicated to quality workmanship
  We guarantee all our work
• Free estimates with no obligation

Ready to get started? Call us at 905-662-5757 or 905-680-2833.