Your Trusted Guide to Canada’s Best Windows and Doors Companies

About Mullions

At Mullions, we connect homeowners with top-rated windows and doors companies across Canada—companies chosen for their reputation, reliability, and results. Whether you’re upgrading for energy savings, boosting curb appeal, or replacing aging installations, we help simplify the process by showcasing only the best professionals in your area.

We currently feature standout companies in major cities like Toronto, Vancouver, Calgary, and others, giving you access to detailed profiles, homeowner insights, and city-specific advice to make informed decisions. No clutter. No endless scrolling. Just trusted names ready to get to work.

Why Mullions Stands Out

We’re not a generic directory. Mullions is a curated platform, purpose-built to highlight Canada’s finest in the windows and doors industry. Here’s what makes us different:

Hand-Selected Excellence

Every business we feature is vetted through a hands-on review process that considers reputation, customer satisfaction, workmanship, warranty policies, and regional experience.

Local Expertise Matters

We focus on Canadian-owned and operated companies that understand local climates and building codes. A window installer in Toronto faces different challenges than one in Vancouver—and we account for that.

Transparency First

We provide clear, unbiased information about every company, including service strengths, areas covered, and what you can realistically expect. We don’t accept payments to boost visibility. Listings are merit-based only.

Built for Homeowners

Mullions is designed with homeowners in mind. Whether you're navigating harsh winters or modernizing an older home, we break down the options clearly, without jargon or fluff.

Our Mission

We have a dual mission:

1

Help homeowners confidently choose quality contractors for windows and doors projects.

Support and elevate outstanding businesses that take pride in craftsmanship and customer care.

2

We believe that every Canadian home deserves durability, energy efficiency, and style—and that starts with hiring the right people. That’s why we go beyond basic listings to deliver real advice, side-by-side comparisons, and local context.

For Homeowners

Say goodbye to guesswork. Our city-focused directories—like Windows and Doors Toronto or Windows and Doors Calgary—feature top picks, weather-specific guidance, and key questions to ask your contractor.

Business Owner?

Mullions offers visibility to companies that don’t want to compete with corporate ad budgets. We level the playing field by giving exceptional local businesses the spotlight they deserve.

If you’re a window or door contractor committed to quality and ready to grow, apply to be featured. You’ll reach homeowners actively seeking your services in their city.

A Better Way to Find and Be Found

Mullions was built on a simple idea: when people are renovating their homes, they need guidance they can trust—and professionals they can count on. We’re here to be that bridge.

Explore our featured cities, browse contractor profiles, or reach out to learn how we can support your next project—whether you’re a homeowner or a business owner.

Want to Be Featured?

If you’re a top-rated windows and doors company serving one of our featured cities, we’d love to hear from you. Email us at [email protected] to start the review process.

Recent Posts:

3 Best Windows & Door Companies In Kelowna

Discover the top-rated window and door specialists in Kelowna, BC — chosen for their local experience, proven workmanship, and consistent customer satisfaction across the Central Okanagan. Each company below is known for reliable installation, durable products built to handle Kelowna’s hot summers and winter cold snaps, and dependable service before and after the job is done. Whether you’re replacing aging windows, upgrading for better energy efficiency, or installing a new entry door, these Kelowna professionals deliver results homeowners can trust year-round.

3 Best Windows & Door Companies In Edmonton

Discover the top-rated window and door specialists in Edmonton, AB — selected for their experience with local building standards, cold-weather performance, and consistent customer satisfaction. Each company below is known for reliable installation, durable products designed for Alberta’s climate, and dependable service before and after the sale. Whether you’re improving insulation, replacing aging windows, or upgrading entry doors, these Edmonton professionals deliver practical, long-lasting results homeowners can count on year-round.

3 Best Windows & Door Companies In Montreal

Expert-Recommended Top 3 Windows & Doors Companies in Montreal, QC
Each company listed below has been carefully selected by industry professionals based on their reputation, craftsmanship, customer satisfaction, and local expertise. From service quality to product durability, only the most trusted names in Montreal made the cut — because your home deserves the very best.