John Chamberlain

Chairman & Founder

John, with his parents, founded LR&M Constructions in November 1966 and was a founding Director, then Managing Director and currently Chairman of the Chamberlain Group of Companies.

During his early working career, he was an active member of the executive of industry organisations such as the Earthmoving Contractors Association, having served for 11 years and President for 2 years, receiving Life Membership in 1990 and was President of the Federal Body (Civil Contractors Federation) during 1986 to 1988. He was awarded Life Membership to the National Body in 1996, having served 14 years on these organisations.

John was instrumental and one of the founders of the Civil Skills & Technology Centre, a training organisation for the Civil Industry and was Chairman in 1999 - 2000, He was also on the Board of the industry insurance brokerage company (OAMPS) as it know as today. He was a founding trustee of the Industry Superannuation Fund, that continues today.

John was inducted into the Construction Industry Hall of Fame on the 16th February 2012.

John is a Ambassador for Operation Flinders, an organisation for young people at risk.

John was made a Fellow of the Urban Development Institute of Australia (SA Branch) in 2013 for his services to the development industry.

Chris Marles

Independent Board Advisor

Christopher served the community of South Australia through 42 Years of employment with EWS/SA Water.

Christopher’s initial career focus was the policy development and management of the provision of water and wastewater services to new and existing allotments throughout SA. Then as Manager Business Development he sought out business opportunities for SA Water and was responsible for the Key Account management of top 100 Customers. Christopher had significant input to the development of the Recycled Water schemes for Mawson Lakes and Adelaide Parklands and the drought response for the Lower Lakes.

Since 2013 Christopher has been an Independent Advisor on the Board of LR&M Constructions and a Water Advisor to Mt Barker Council.

Christopher qualified as a Survey Technician at the South Australia Institute of Technology (Now University of South Australia).

Christopher is a Fellow of the UDIA (SA Division).

Rob Chamberlain

Managing Director

Rob joined LR&M Constructions in January 1983, after completing Year 12 at Gawler & Districts College.

Rob initially started in the field labouring, pipe laying and learning all facets of civil construction on various sites all over South Australia. After completing a backhoe operator’s course at TAFE SA O’Halloran Hill Campus, he spent many years as a plant operator, operating various machines, including backhoes, excavators, scrapers and also other road building plant.                                                    

Later, after completing the Local Government Works Supervision Course at TAFE, Rob was promoted to leading hand, prior to becoming a Site Manager.                                          

Project Estimating and also Project Management followed site based years, with Rob being made Senior Estimator and a Director in 2000.                                                  

Rob was promoted in 2010 to the role of General Manager, later changing to Managing Director in 2013.

He is a Member of the Australian Institute of Company Directors.

Britt Harris


Britt joined the Chamberlain Group in October 2004, working primarily in the Land Development group of companies. In 2008 her role evolved into Project Management at LR&M Constructions. Britt was appointed a company Director during this time.

Changes in management saw Britt move into the Estimating group, which she now manages.

Britt holds a Bachelor of Engineering in Civil Engineering (Honours) from the University of South Australia and Master of Business Administration (Technology Management) from the La Trobe University (through APESMA).

Britt is a Graduate of the Australian Institute of Company Directors.

Prior to working with LR&M Constructions, Britt worked at the Department of Transport (Transport SA), from 2000-2004, after receiving graduate employment as part of a scholarship package.

Amanda Schumacher

Company Secretary

Amanda was initially employed by the LR&M Constructions in 1992 as a clerical assistant. During 1997 Amanda left to pursue other employment experiences including Accounts Manager for a heavy equipment hire company in Western Australia. Re-locating back to South Australia in 1999, she worked at a local construction plant hire company.

In 2001 Amanda re-joined LR&M Constructions as Accounts Payable/Receivable Officer. In 2006 this position evolved into the LRM Constructions accountant.

In 2010 Amanda was appointed Alternate Director and Company Secretary for the Chamberlain Group of Companies and in 2016 was appointed as Business Unit Manager for the Corporate Business Unit.

Amanda has an Advanced Diploma in Accounting.


Rodney Frick

Director of Finance (Chamberlain Group of Companies)

Rodney joined the Chamberlain Group of Companies in January 2005.

Since 1992, Rodney has worked in senior accounting, finance, administration and management roles in small, medium family owned businesses. These businesses are actively engaged in a variety of activities including property development and investment, primary production and civil earthmoving and construction.

Until 1992, Rodney worked for 18 years in public accounting practices. These practices had diverse range of clients, predominantly small medium businesses. Client structures included a public company, credit union, a range of private companies groups and trusts, partnerships and sole traders. Client businesses included engineering, earthmoving and building contractors & subcontractors, retailers, primary producers, pharmacies, light manufacturers, hotels, legal & medical professional practices.

The practices provided services in the areas of accountancy, taxation, litigation support, insolvency, audit and management services. Rodney mainly provided general business and accounting advice, comprehensive tax compliance and tax planning services.

Rodney is a Chartered Accountant, a Fellow of The Taxation Institute and a Registered Tax Agent. He holds a Bachelor of Arts in Accountancy from the University of South Australia (formerly South Australian Institute of Technology).

Michael Jeffery

Chief Executive Officer

Michael was appointed CEO of LR&M Constructions in August 2013.

Previously, Michael spent 10 years as a professional consulting engineer in Wollongong and Sydney before being appointed Executive Manager Major Projects at State Water Corporation in NSW, a NSW Government Business, delivering its $500 million capital works program between 2008 and 2013.

Michael spent 5 months acting as the CEO of State Water in 2011, including the change over period between the previous Labor Government and the Current Baird Liberal Government.

Michael holds a Bachelor of Civil Engineering (Honours) from the University of Wollongong, is a Member of Engineeers Australia (MIEAust), is a Chartered Professional Engineer (CPEng) and is registered on the National Engineers Register (NER). He is a Member of the Australian Institute of Company Directors.

Michael is a Director and the Honorary Treasurer of the Civil Contractors Federation South Australian Branch.