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Replacing Your Home Windows in Toronto & GTA

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FREE Triple Glass Windows Replacement
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We Provide Windows Replacement Service

Professional Window Installers are Serving Toronto and GTA

Replacing windows is a big decision, but it’s an important one. With the rising costs of energy, your current windows may be costing you more money to keep them than replace them.

WELDA Windows and Doors is proud to offer replacement vinyl windows with Energy Star energy efficiency ratings that will fit your budget and save you money as you heat and cool your Toronto home. There are a wide variety of attractive styles to choose from: double hung windows, slider windows, casement windows, bow windows, bay windows, awning windows and more. You can choose from many types, styles, colours, and options. The only criteria – it has to be a window we’d feel comfortable putting in our own home… or we won’t install it.


Energy Star Rates

ENERGY STAR qualified, windows, and doors – are manufactured by an ENERGY STAR partner

Siding and Window Dealers Association of Canada

When you choose a registered SAWDAC company, you’re choosing quality, professionalism and guaranteed workmanship.

CSA Certification of Canada

The CSA registered mark shows that a product has been independently tested and certified to meet recognized standards for safety or performance.
Cardinal Glass
Cardinal Glass

Cardinal Glass Industries

Engineering the future of glass: Insulating glass, coated glass, laminated glass, custom tempered glass, float glass
Window Wise
Window Wise

Window Wise National Certification Program

Window wise is a Canadian quality assurance program that can provide homeowners with the confidence that they need, when dealing with their window replacements.
profiles 3 pane glass
Super Saver Technology
  • Indur IG Insulating Double or Triple Glass for energy saving and solar control
  • Industry lowest failure rate! Exceptional longevity and performance
  • Lifetime Warranty with the best sound proofing and highest security against forced entry
  • Engineered thermal insulation for outstanding thermal efficiency
  • Lead free 100% virgin vinyl designed to last a lifetime and poses no health hazards
  • Energy Star most efficient window, CSA certified & NAFS tested

Why Choose Welda Windows & Doors

Over 40k Satisfied Customers
  • Over 35 Years of Experience
  • Servicing Homeowners Across the GTA
  • Energy Star Rated and Designed in Canada
  • 50% of our business is from referrals
  • Peace of Mind with Lifetime Warranty
  • Satisfaction 100% guaranteed
  • Best In Class Glazing Technology
  • Super Saver Glass with Argon or Krypton Gas Filled

Start your project today

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