One-stop Solution

What others consider extra,
we consider standard!

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Energy Efficient Windows and Doors
Modern and Traditional Designs

WELDA offers high quality, durable, easily maintained energy efficient premium vinyl windows, front doors and patio doors, custom built for you and your home.
We design, install, guarantee and service windows and doors since 1984. We do it all, with endless custom options.

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

Experience & Trust Our Quality does Not cost- it Pays!

Certified Professional Installers

Over 40k Satisfied Customers


Everyone wants quality windows, but not everyone wants the same size or style. That’s why WELDA offers a full selection of styles that can accommodate any design need or architectural style. The only factor that won’t differ from style to style, or size to size is the quality.

Door System

There’s more to replacing your existing entry door than just hanging a new door in an old jamb or settling for a pre-built, off the shelf door from a home center. With a new entry system from WELDA you get a complete entry door system with a variety of options allowing you to create a unique entrance to your home that combines the best low maintenance and energy efficiency features available.

Porch Enclosures

WELDA porch enclosures are the greatest thing since sliced bread! But don’t take our word for it – ask anyone who’s had an enclosed patio installed. Porch enclosures are immensely practical additions to your home especially in the extreme Canadian climate.

More Products

Maximum visibility to complete privacy at the tip of a finger. The lever raises, lowers or tilts the blinds sealed between the insulated glass to ensure maintenance-free operation.

Awnings & Pergolas

Shutters & Blinds

Terrace Systems

The benefits of working with us

We understand that there are many windows and doors companies to choose from. There are hundreds of them! So why choose us?

High Quality

Searching for high quality windows & doors? WELDA provides only high quality products designed to last for many years to come.

Fair Pricing

What is a fair price? WELDA Windows offers the best combination of price and value. Our prices are incredibly affordable.

Expert Installation

What`s more important than price or quality? Installation! Since 1984 more than 40,000 homeowners have chosen WELDA Windows.

Excellent Warranty

Homeowners should consider WELDA for the long list of warranty benefits assured with every product purchased and installed.

What people are saying about us

WELDA Windows and Doors have been supplying windows and doors for over 35 years and you don’t survive that long without providing customers with great service.

We asked Jimmy for a white aluminum enclosure with an insulated roof on top in front of main entrance door. I am impressed with their …

Nabeel Toronto – Porch Enclosure

Yesterday we had a new front door installed by Welda Windows & Doors. We went from a double door to a single door with two sidelights. …

Teresa, Woodbridge – Front Door

Dear Management of Welda Windows and Mr. Joseph Rosenberg and Mr. Tony Converso. Just a short note to thank you and acknowledge how …

Frank V. & Sonia R., Burlington – Windows

Fabulous, Fabulous, Fabulous …. We are extremely ecstatic with our new windows and doors from Welda Windows. From beginning to end my …

Nella P., Toronto – Windows & Door

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