BCIN Custom Home Designs
Radon Mitigation


Cenlo was founded in 1995 as a small building architectural design and construction company serving clients throughout Ontario.  Cenlo offers BCIN certified custom architectural designs, civil and structural professional engineering services, and radon mitigation and design.  We thrive on delivering construction-ready projects for new initiatives, whether in the municipal, commercial, residential, or industrial sectors.  Our key staff are natives to Sault Ste. Marie in Northern Ontario and have an underlying appreciation for the challenges we face in a northern climate.  We provide commercial/residential site developments, linear infrastructure, steel, timber, and concrete designs, coastal/marine engineering, structure rehabilitation, and much more.  Cenlo is a local, independently owned and operated firm in affiliation with Soo Mill Buildall.  This affiliation allows us to work directly with owners, contractors, and product suppliers throughout Algoma to deliver quality, practical, cost-effective solutions in a timely manner.


Don McEwen, Architectural Technologist, Civil Technician, BCIN 36670 - Director

Mr. McEwen founded Cenlo Enterprises in 1995 after his term with Maple Leaf Custom Homes, where he was employed for nearly ten years as an architectural designer.  From the mid-'80s, McEwen worked in the architectural field, responsible for coordination with clients, contractors, and building departments.  After founding Cenlo, McEwen obtained his BCIN certification and has been a successful architectural designer focusing on OBC Part 9 small buildings and housing.  Mr. McEwen has nearly 30 years of architectural and construction experience with small buildings and custom designs. 

In addition to architectural design, Mr. McEwen also specializes in environmental radon mitigation, consultation, design, and inspection services.  He founded Canada Radon Inc. in 2013 and has performed testing and mitigation work across Canada for various Federal and Provincial entities (RCMP, Schools, CBRE, etc.) along with hundreds of residential customers and has become a national leader in radon mitigation in Canada.  Canada Radon Inc. was sold in the spring of 2022 and Mr. McEwen remains active as a consultant. Cenlo Engineering Inc. continues to offer radon mitigation services under Cenlo Engineering Inc.


Andrew Mallette, P.Eng. – Principal Engineer / Office Manager

Mr. Mallette is the principal engineer at Cenlo and has extensive experience in the private consulting sector.  He entered the workforce in the mid-2000s as a junior inspector/surveyor and structural designer for RA Engineers & Inspectors (formerly Rowswell & Associates Engineers) and has since become a locally respected licensed engineer and project manager.  Mallette has also worked significant terms for Cook Engineering, Walker Engineering (WSP), and STEM Engineering (Tulloch) as a team leader where his contributions were invaluable.  Throughout his career, Mr. Mallette has become well known to many contractors and has seen through many capital projects across Ontario.  Mallette has also been the lead engineer and coordinator for many local development projects.  His experience includes civil, structural, and infrastructure projects for residential, commercial, industrial, municipal, and First Nations applications.   He is of First Nation heritage himself, interested in sustainable development. He has worked with First Nations across Ontario on many projects, including Batchewana FN, Wiikwemkoong FN, Dokis FN, Fort Albany FN, Whitesand FN, Constance Lake FN, Shoal Lake FN, and more.  He has been intimately involved in many parks and recreation projects of all classes throughout Ontario, including municipal, provincial, and federal parks projects.


Nick Giunti, P.Eng.

Nick Giunti is a structural engineer at Cenlo and specializes in providing structural design solutions to a range of public and private sector clients for buildings, industrial structures, bridges and culverts. Since joining consulting in 2016, Nick has provided a variety of structural engineering services including new commercial building design, extensive building renovation and retrofit design, industrial structure analysis and reinforcement, and residential construction. Nick has also completed several structural and rehabilitation design, enhanced inspection, and condition assessment of various bridge and culvert structures throughout south-western Ontario.


Mitchell Jalak – Civil Technologist

Mr. Jalak is the lead Civil Engineering Technologist with Cenlo Engineering, primarily responsible surveying, drafting and preliminary design. With technology diplomas from Sault College and Cambrian College, and a few good years of consulting experience, Mitchell has become proficient with executing the inspection, design, and drafting aspects of many engineering projects with the engineering team.   He has gained extensive experience in residential and civil projects, including but not limited to commercial development, municipal infrastructure, industrial engineering, surveying and locating. 


Ms. Stephanie Mackenzie, Civil Engineering Technician

Primarily provides services as a residential drafter and a planar wood truss designer within the company. Graduated from Sault College. Has gained experience within the construction and engineering industry. Both in the field with surveying and various testing and inspecting procedures; and in the office designing and drafting both commercial and residential components.