about us

Who We Are

We are problem solvers, leaders, and trusted advisors. Our team delivers projects across remediation, building renewal, and commercial construction, helping clients protect and enhance the value of their assets.

Why Brosnan Klaar
Two workers in safety gear on a tall crane structure above a cityscape on a clear day.
Construction workers wearing helmets and high-visibility vests on scaffolding beside a modern building.
Two workers in yellow jackets reviewing building plans on a table with an orange helmet and tools.
Two men in business attire shaking hands by the water with a city skyline and bridge behind them.

Brosnan Klaar's mission is to understand and deliver on the unique needs of each client.

Four construction workers in orange helmets and yellow vests talking outdoors on a sunny day.

Collaborative Engagement

From early engagement through to construction and completion, we work closely with clients to ensure objectives and needs are met.

Innovative Solutions

Whether the requirement is accelerated delivery, specialist engineering, live environments, or regulatory compliance, our team keeps projects moving forward.

Confident Decisions

Smart, practical advice informed by years of tackling Australia's most common remedial challenges, we help clients make informed decisions that reduce risk and improve certainty.

Sydney-based Team
Australasian Executive
Brosnan Group Board
Sebastien Leveque-Lopez
Executive Director
Mohammad Rahimzada
Operations Manager
Edwina Feilen
Client & Growth Manager
Ligia Szyrokyj
Bid Manager/Estimator
Deborah Lockart
Operations Advisor
Dan Wright
Construction Manager
Harry Sandhu
Contracts Administrator
Sebastien Leveque-Lopez
Executive Director
Liz Thorburn
Chief Commercial Officer
Dale Sadler
Chief of Risk & Compliance in Operations
Richard Ertel
Chief Information & Technology Officer
Wendy Baker
Chief Human Resources Officer
Holly Bryant-Simpson
Chief Marketing Officer
Geoff Nash
Managing Director
Bill Cashmore
Chair & Independent Director
Phil Brosnan
Founder/Director
Craig Brosnan
Founder/Director
Jim Quinn
Independent Director
Four construction workers talking during a break, two in yellow vests and one with a red helmet.

Grow together with us

Join our journey and shape an organisation that values and encourages employees to deliver their very best. We empower our people with opportunities for both personal and professional growth, fostering continuous learning and development.
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Careers with us

Two Journeys, One Vision

After years of delivering complex projects and solving challenging building defects, founder Sebastien Leveque-Lopez established Klaar with a focus on technical expertise, innovation and client service. In 2026, Klaar joined the Brosnan Group, combining local Australian knowledge with more than 15 years of remedial construction experience. United as Brosnan Klaar, we share the vision of restoring confidence in construction.

Construction worker wearing yellow gear spreading wet concrete from a large pipe on a construction site.