Windows and Doors Thornhill

At ALDA Windows and Doors, we specialize in providing Thornhill homeowners with exquisite doors and windows that elevate the elegance of their homes. Our wide selection of customizable doors and windows allows you to create a seamless blend of style, functionality, and visual appeal. Our expert craftsmanship ensures that every element of your home reflects YOU.

Vinyl Windows

View All Our Vinyl Windows

Get 40% Off on Doors & Windows Replacements in Thornhill

Limited Time Offer 

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Energy Efficiency for Thornhill Homes

Save Energy and Reduce Costs with Our Energy-Efficient Solutions. Our innovative windows and doors are designed to optimize energy performance, keeping your home comfortable while reducing heating and cooling costs.By choosing our energy-efficient solutions, you can enjoy a greener lifestyle and significant savings on your energy bills. Upgrade to ALDA's windows and doors in Thornhill to experience style and sustainability.
Call Now: (416) 807-4242

Serving The Thornhill Community

Thornhill has an incredible variety of neighbourhoods, each offering its residents a unique experience so that there’s somewhere for everyone. We know this town. Whether you’re living on a quiet residential street in Aileen-Willowbrook, a detached home alongside the lovely Royal Orchard Park, or in a family home in Brownridge, we can provide you with the perfect windows and doors for your home.Our company is dedicated to serving Thornhill’s unique neighborhoods with a full range of customized doors and windows that are just as tailored to you and your lifestyle. We can offer you steel or fiberglass doors and wide variety of window types, expertly installed so that your home is comfortable and energy-efficient.

  • Energy efficient doors and windows
  • Steel Doors, fibreglass doors, and more
  • Competitive Pricing

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A Free, No Obligation Estimate in the Comfort of Your Home






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