We’ve built our business around the needs of builders and remodelers. Whether you’re tackling a custom home or updating a heritage property, we deliver tailored support and dependable results. Here’s why so many pros choose WELDA:
From custom window solutions for builders to responsive service, we help you stay ahead on every job site.
Whether you’re building from the ground up or giving a property a fresh new look, WELDA offers a full lineup of high-performance windows and doors for contractors. Our products are built to handle the real-world demands of construction while enhancing energy efficiency and curb appeal.
From modern vinyl windows to impact-resistant entry doors, our product range is designed for:
No matter the scope, our products deliver durability, style, and energy savings you can count on.
We do more than just supply top-quality products. At WELDA, we support your entire build — from the planning phase through the final installation. Our full-service approach to window and door projects gives you confidence at every stage.
Here’s what that looks like:
We’re here to make your job easier, not harder — so you can focus on getting the job done right.
WELDA is proud to be a trusted partner for custom home builders, renovation contractors, and developers throughout Ontario. From large-scale multi-residential projects to heritage home upgrades, we’ve supplied and installed solutions that meet even the most unique demands.
Looking for a partner who understands your business? You’ve found us.
If you’re a builder, contractor, or developer looking for a dependable partner, we’d love to hear from you. With flexible options, expert guidance, and a reputation for quality, WELDA makes it easy to get the results you need — and keep your clients happy.
Yes, we do. Our team specializes in custom-sized windows and doors, ensuring every piece fits your build perfectly.
Absolutely. We offer bulk pricing for windows and doors, so you get the best value when ordering for large-scale or multi-unit projects.
We know timing matters. Most contractor orders are fulfilled quickly — our streamlined process keeps your project on schedule.
They sure are. All of our offerings are code-compliant and energy-efficient, designed to meet Ontario’s building standards.
We handle both. Whether you need supply-only or full-service support, our professional installation team is ready to help.
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.
