We supply and install replacement windows and doors tailored to the demands of Canadian climates. Our team ensures proper fit, professional finishing, and modern energy-efficient upgrades that reduce energy costs and enhance home comfort. Whether you’re renovating or upgrading your home, we provide a wide range of styles and materials backed by excellent warranties.
Our window replacement solutions include casement windows, awning windows, and other types of windows suitable for residential applications. All products are custom-manufactured to your home’s exact specifications. We offer Energy Star certified energy-efficient windows that help lower heating and cooling expenses throughout the year. As a window company with decades of experience, we guarantee precise installation and reliable performance.
We install durable exterior doors and stylish patio doors built for security and weather resistance. Our custom doors come in a variety of colours and designs to suit modern and traditional homes. Whether you’re looking to upgrade your front entrance or improve backyard access, our door replacement service delivers long-term benefits with excellent thermal performance.
We replaced all our windows and I was nervous about the mess and potential damage. The crew was perfect, fast and very clean. Got it done in a day and a half. The new windows are much better and the house looks great.
Had my whole house windows replaced. They were fast, friendly, and even checked up on me a month later to make sure I was happy. A++ service. Helped me get energy rebate at no extra cost for filling out paperwork.
Best in their league! Reasonably priced! No games. What they say is what you get. Excellent customer service. Quality installation. Punctual and delivered right on schedule.
Installer arrived on time and date promised. Work was done cleanly and efficiently. We have been enjoying the awning and getting many compliments on it. The salesman who came to our house was very professional and knew his product dry well. Thank you Joseph.
Why Choose a Professional Installation Company for Windows and Doors?
Working with a professional window installation company ensures correct measurement, secure fitting, and product longevity. Many window replacement companies lack the technical knowledge and certification that WELDA brings to every project. We use skilled contractors who follow a detailed process for each installation.
Our window installation process begins with a site assessment and consultation. Measurements are taken, product options are discussed, and custom orders are placed. Once delivered, our installation team completes the work using proven techniques and sealants to optimize insulation and minimize disruption.
We use quality-made products designed to last. Whether it’s high-performance glass, vinyl frames, or composite finishes, our materials meet Canadian standards. Every installation is completed by certified installers trained to deliver lasting value and performance.
Replacing old windows and doors with new models offers multiple functional and aesthetic benefits for your home.
Upgrading to energy-efficient models reduces energy costs by limiting heat loss in winter and minimizing solar gain in summer. Our efficient replacement windows are built with advanced glazing and insulated frames to suit the Kitchener climate.
New custom windows and doors can significantly update the appearance of your home. Choose from a wide selection of finishes, grille styles, and hardware to match your design goals.
Installing modern energy-efficient windows and stylish exterior doors improves both marketability and appraisal value. Homebuyers recognize the investment and long-term benefits of high-quality replacements.
WELDA has served homeowners across Ontario with thousands of satisfied customers. We offer affordable prices, financing options, and a wide selection of energy-efficient window and door products tailored to your needs. Whether you’re planning a single-room upgrade or a full home replacement, our expert team is ready to help.
Start your project with a free, no-obligation estimate. Our team will review your home’s needs, show product samples, and help you choose the right solution for maximum efficiency and style.
