Who We Are

A bunch of folks who actually love working in -30 degrees

Our studio space

The Story Behind the Blueprints

Look, we didn't start Frosthall Quintaris because we thought the world needed another architecture firm. We started it because we were honestly tired of seeing buildings in Canada that completely ignored where they actually are.

You know what I mean - those glass towers that turn into ovens in summer and ice boxes in winter. Or those "trendy" designs that look great in California but make zero sense when you're dealing with ice dams and three-foot snowfalls.

We've spent years figuring out how to make buildings that don't just survive Canadian weather - they work with it. And yeah, we think that's pretty cool.

Our Philosophy (Without the Fluff)

We design buildings that respect the land they're on and the people using them. That's it. Everything else flows from there.

Climate-Smart

We've learned from decades of Canadian winters what works and what doesn't. Your heating bill will thank us.

Local First

We use materials that make sense here. Less shipping, more supporting local craftspeople who get it.

Actually Livable

Pretty renderings are nice, but we design for how you'll actually use the space day-to-day.

Built to Last

We're not interested in trends that'll look dated in five years. Good design ages well.

Meet the Team

The people behind the projects

Sarah Frosthall

Sarah Frosthall

Principal Architect & Co-Founder

Grew up in Yellowknife, which explains a lot about her obsession with thermal performance. Sarah's got this knack for making passive solar design actually work in places where the sun barely shows up half the year. She's been at this for 18 years and still gets excited about insulation specs - we don't get it either, but her buildings stay warm.

Marcus Quintaris

Marcus Quintaris

Principal Architect & Co-Founder

Marcus spent five years restoring century homes in Montreal before realizing he could apply those old-school building techniques to modern projects. He's the guy who'll spend an afternoon chatting with an 80-year-old stone mason just to understand how they did foundations back in the day. Heritage meets innovation is his whole thing.

Jin Park

Jin Park

Senior Architect

Jin's background in environmental science makes her our go-to for anything sustainability-related. She's probably tested every green building material available in Canada at this point. Fair warning though - don't ask her about LEED certifications unless you've got an hour to spare.

David Chen

David Chen

Project Manager

If David says it'll be done by Thursday, it'll be done by Thursday. Fifteen years managing construction projects means he's seen every possible thing that can go wrong - and knows how to fix it before it becomes a problem. He's basically the reason our projects actually get built on schedule.

Rebecca Lawson

Rebecca Lawson

Interior Design Lead

Rebecca joined us from a big commercial firm where she got tired of spec'ing the same twelve materials over and over. Now she sources everything from reclaimed timber to locally-made fixtures. Her spaces feel warm without trying too hard - which is exactly what you want when it's freezing outside.

Thomas Bernier

Thomas Bernier

Architectural Designer

Fresh out of McGill but already bringing some solid ideas to the table. Thomas grew up in rural Quebec and has this understanding of how buildings fit into landscapes that you can't really teach. Plus he's way better at 3D modeling than the rest of us, which helps.

Why We're Based in Toronto

Honestly? Because it's right in the middle of everything. We've got projects from Vancouver Island to Nova Scotia, but Toronto gives us access to the whole country without being stuck in one climate zone.

Plus, there's something about working in a city that experiences every possible weather condition - sometimes in the same week - that keeps you humble. You can't fake good building science here.

We're at 1425 King Street West if you wanna drop by. Coffee's usually on, and we're always up for talking about buildings.

Get In Touch
Toronto streetscape

Let's Work Together

Got a project that needs someone who actually understands Canadian climate? We should probably talk.