About us
Since 1927, Kolostat has been a recognized leader in integrated solutions for building mechanics and energy efficiency.
Our history
Founded nearly 100 years ago, Kolostat has constantly evolved to anticipate and meet the changing needs of its customers.
From a traditional family business, we have grown into an innovative group, integrating subsidiaries KROME and Mécanique MSB, and expanding our reach into Quebec and Ontario.
Our track record is marked by a vast portfolio of emblematic projects that reflect our expertise in design-build, energy efficiency and building decarbonization.
Our mission
Our mission is to save the planet, one system at a time, by building tomorrow’s buildings today.
Every project we undertake contributes to reducing the environmental impact of infrastructure, while optimizing our customers’ economic and operational performance.
Our vision
Our customers’ needs are at the heart of all our decisions. We take a collaborative approach, integrating know-how and transparency. From design to maintenance, we provide ongoing support to implement high-performance mechanical systems tailored to our customers’ needs.

Our values
Our core values are at the heart of our culture and guide our every action:
Collaboration
Integrity
Bold innovation
Excellence
Wisdom
All in good fun
Our divisions
Quebec:
276 St-Jacques Street #805
Montreal, QC H2Y 1N3, Canada
Ontario:
151 Bloor Street W, 5th floor,
Toronto, ON M5S 1S4, Canada
Ontario :
1200 Stellar Drive, Newmarket,
ON L3Y 7B9, Canada
Associations and awards
Our involvement with key organizations such as ASHRAE, CMMTQ, ACQ, Groupe BIM Québec, APCHQ, BOMA Québec, CQ3e, IDU, Réseau énergie bâtiment, ASPE and the Canada Green Building Council fuels our spirit of innovation and ensures that our customers benefit from the most up-to-date practices. We are also pleased to contribute to the sharing of best practices in the construction industry.
Kolostat has received several ASHRAE awards for innovative projects in energy efficiency and sustainable design, recognizing our ongoing commitment to environmental excellence.
Project
TRÉVI
Type
Project
Type
Project
Type
Project
Type
Project
Type
Project
Type
Project
Type
Project
Type
Project
Type
Project
Ullivik Health Center
Type
Project
Type
Project
Bell Canada head office (Nun’s Island)
Type
Our division specializing in decarbonization projects, KROME, has been awarded the BOMA ENERGY CHALLENGE FOR REAL ESTATE and the SUPPLIER MOBILIZATION AWARD in 2021, 2022, 2023 and 2024.



Over the years, many of our customers have obtained LEED certification for their buildings.
Project
Project
Dicom head office Collège LCC (Lower Canada College) project
Project
Project
Project
Project
Project
Project
ICAO (International Civil Aviation Organization, headquarters)
Team
Since our beginnings as a heating contractor in 1927, we’ve evolved into a multidisciplinary team of engineers, designers, draftsmen, control technicians, project managers, millwrights, service and maintenance professionals.
Our wide range of expertise guarantees comprehensive and rigorous management of your mechanical and energy projects.
Find out more:
300+
specialized experts
Kolostat employs over 300 engineers, technologists, experienced technicians and certified professionals (LEED, CEM, CMVP, RCx).

Alain
Champoux
LL.B., MBA, ICD.D
Chief Executive Officer

Sandrine
Tremblay,
P.Eng.
President, CTO

Alexandre
Provost,
ing, PA LEED
Operations Manager

Mat
Black
TBD

Antoine
Courchesne-Tardif
ing., P. Eng., M.Sc.A.
Vice-President - Engineering

Eric
Cuillerier
Sales Manager

Alexandre
Daigle
Manager - Estimation

Linda
Forest
Director - Human Resources

Jérémie Frappier-Cournoyer
General Manager - Energy

Ricardo
Haddad
Project Manager - Mechanical Engineering

Stéphane
Maccabée
ing.
Vice-President - Construction

Dominique
Morin
Director - Finance

Olivier
Pettersen
ing., MBA
Manager - Construction

Richard
Pinard
General Manager - Automation

Daniel
Robert,
ing, PA LEED
Senior Vice-President - Special Projects

Myriam
Robichaud
ing.
Director - Business Development
