Aerecura is an established team of experienced craftspeople deeply inspired by the principles of sustainability.

Since 2009, our mission has been to bring the unique beauty, comfort and energy efficiency of rammed earth walls to Southern Ontario. We take pride in the skill and artisanship of our team in creating our high-quality, high-performance rammed earth walls and homes. 


Sylvia Cook, PRESIDENT

Sylvia, a former high school physics teacher, has always been keenly interested in sustainable living practices. After extensive research into sustainable building techniques, she settled on rammed earth as the only option for her new home. In 2009 Sylvia founded Aerecura and began construction of a rammed earth showhome in Castleton, the first insulated rammed earth home in Ontario.

A decade later, Sylvia has helped guide rammed earth to the forefront of sustainable building choices available in Ontario. She has appeared on CBC's Disrupting Design and the showhome has been featured in The Globe and Mail. As well, Sylvia has delivered talks on rammed earth to architects, builders, building officials, college and university classes, Indigenous community groups and civic planners.

In her spare time, Sylvia enjoys playing music with her spouse in the couple’s rammed earth music studio.


Graham Cavalier, general manager

Graham has been Aerecura's general manager since our first project in 2009. 

Graham began his relationship with the built environment at a young age, spending summers building and renovating cottages. More recently, his experiences with rammed earth and deep-energy retro fit renovations have emphasized for him the importance of moving the building industry to a paradigm of sustainability.

Graham holds a Master’s degree (York University) in Environmental Studies with a focus on sustainable building.

When he’s not building, you can find him playing guitar or drums, rolling Jujitsu, or exploring the beauty of Prince Edward County with his young family.


Andrew is Aerecura’s project manager, as well as our health and safety officer.

Andrew previously worked as a YMCA camp director in Haliburton while moonlighting doing carpentry and metal work to help support his family-run tackle business.

Aerecura is a natural fit for Andrew, allowing him to marry his passion for promoting environmental stewardship with his love for high quality craftsmanship. His eagle eye for detailed work has had him providing our homes with gorgeous custom staircases and metal roofs, and his timber framing continues to reach new heights. As our health and safety officer, Andrew plays an important role in the implementation of our risk management strategies.  

Andrew is always keen to travel and explore Ontario’s natural environment while expanding its built environment to include more sustainable options.


Alistair has been a committed member of the Aerecura team since our first build in 2009. His attention to detail has made him indispensable; Al specializes in innovative form work and air sealing.

Al’s previous experience with masonry has been beneficial in his designing, building and installing custom rammed earth window sills.

When Al is not building you can find him practicing martial arts or playing a mean bass guitar.


Sam has been with Aerecura since 2016, and since then, has become a skilled rammed earth builder. The same hard work and determination that Sam shows in building is invaluable in the role as our Camp Manager when the crew is on the road.

Sam is a great team player and has been integral to keeping camp life positive and organized throughout our entire build season, year after year.

When not building, Sam is usually camping, or hanging out with cats, or both.


Richard joined our team in 2017. With an education in small engine repair and operation and a background in home renovation, Richard has quickly become a valued member of our crew and our go-to on-site mechanic.

He has also shown his chops as a skilled air sealer with his meticulous attention to detail.

When asked why he enjoyed working with Aerecura Richard answered, ‘I get to play in giant machines with dirt and build amazing homes, all while working with a team of individuals whose support and encouragement is a welcome change to other jobs I’ve had in the building industry.’ 

Laura Todd, Crew Member

Laura began working for Aerecura in 2019 after attending George Brown College’s building renovation program.

Carpentry is her latest career trajectory following previous adventures as an artisan cheese maker and television production manager. She brings her passion for craft and sustainable building to the team.


Lindsey has been our Communications Coordinator since 2017. Working with us part time, she is responsible for Aerecura's communications, including our website, social media, and general information emails.

When not administering for Aerecura, Lindsey can be found in her community gardens.