We are a Sydney-based principal contractor with a strong commitment to quality and innovation.
Our civil and construction projects are built to withstand the test of time. With Cornerstone, every detail and drawing is seen through the lens of 80 years’ combined civil, remediation and construction expertise.
Concierge-level client service
Projects meticulously managed from decision-making to up-to-date progress reports
All professional service provider liaison included
Projects on time, on budget and to a high spec
Proven delivery model
One contact. Cornerstone.
A truly end-to-end ‘concierge’ model. With our truly end-to-end concierge service, clients’ only point of contact is Cornerstone.
Turnkey and trouble-free.
We manage all accountabilities: from site and town planning assessment, construction to handover and occupation certification so that you have complete confidence, knowing the job will be done right - with problems resolved promptly and innovative solutions proposed.
Sydney Professional Commercial Construction
Warehouse development and refurbishment
We deliver durable, low-maintenance structures including tilt-ups, pre-cast panels and steel portal frame structures. Learn more about our warehouse development at 7 Daisy Street, Revesby.
Waste facilities
State significant developments, new builds, major facility improvements, infrastructure developments and upgrades. Design and construction is tailored to end users’ specs and applications. Find out about our Resource Recovery project in Artarmon.
High risk projects
Working at heights, demolition, HAZMAT reporting and the compliant removal of hazardous waste and materials. Customised efficient and practical approaches.
Major loss insurance claims
Proven track record with industry-leading insurers and loss adjusters. Delivered multimillion dollar insurance claims. Industrial and commercial facility reconstructions. Building demolition including hazardous waste disposal.
Refurbishment and interior fitout
Including mechanical and electrical services, hydraulic systems, partition walls, painting and architectural finishes.
High quality civil works
Including earthworks, bulk cut and fill, stormwater, sewer lines, pavements (concrete and asphalt).
Sydney Cladding Installation & Remediation Services
Whether you’re specifying non-combustible cladding for your project or replacing defective or non-compliant cladding, we use the highest-quality Japanese-made material exclusively.
Protect your asset with high performance non-polyethylene cladding solutions for safe and compliant Australian properties. Read more about the benefits of using ALPOLIC™ NC and its well-deserved global acclaim
With Cornerstone Civil & Construction you get:
Ethical enterprise: As a company and individually our word means everything to us. At Cornerstone we avoid the common industry practice of quoting low then creating bill shock with unexpected variations. With our deep programming and budgeting expertise, our forecasting is as accurate as can be.
Value-engineering promise: Whenever we uncover savings and efficiencies, these opportunities are passed on to clients. 100% of the savings are yours.
Innovative solutions to your problems: A culture of courage and innovation. New approaches are conceived, and new technologies incorporated as part of standard delivery.
Quality materials: We source industry-leading materials with a name for quality. Reliable performers from reputable suppliers Including Mitsubishi ALPOLIC™ NC, CSR, Prodema, Rockcote, Rondo and many others.
Complexity, managed: All liaising with governing bodies, regulators and authorities - managed on our clients’ behalf for superior service outcomes.
Safety, uncompromised: An unswerving commitment to a culture of safety. Demonstrated commitment to EQ&S, risk evaluation and mitigation.
Transparency, assured: With Cornerstone, what you see is what you get. The time-lapse videos on our YouTube channel are proof of this. At an individual level what you see is what you get too. We are real and we truly care. When you work with us, you can be sure we’ll go the extra mile
“We take pride in our long-established associations and relationships with every team we work with. We can confidently say that everyone operates to the high-ethical values and standards we hold dear. We are sure that everyone is there to problem solve and help our clients throughout the process.
Cornerstone Civil & Construction has developed a reputation for making problems go away. Clients know when they come to us with a problem it’s not a problem anymore.”
You’ll know it’s a Cornerstone project.
Our Expert Team
Elias Maamari
Founder & Managing Director
Since his early days as a civil engineer and project manager, Elias has built a solid track record in innovation. He developed construction methodologies and quality assurance systems for iconic projects such as the $90m Sydney Harbour Bridge infrastructure upgrade and for Shell oil refineries that are still in use today.
Under his leadership, Cornerstone enjoys substantial growth. It has successfully delivered significant infrastructure and development projects across the greater Sydney region, in its capacity as Principal Contractor.
Elias has a BA Engineering in Civil Engineering. He holds a Diploma in Engineering Practice and a Cert. IV Building & Construction (Building).
Tony Lahoud
Senior Construction Manager
With construction expertise spanning three decades, including over 12 years in management, Tony has managed and completed high rise mixed use multi-residential projects in Mays Hill ($25m) and Erskineville ($10m). He is experienced in commercial, government and industrial developments. Tony’s expertise in complex stakeholder management includes projects with Transport for NSW, Ausgrid and RMS.
Tony oversees all building and construction projects. He ensures projects are delivered within program, in line with financial forecasts and quality to the satisfaction of certifiers, BCA and relevant legislation. He is a licensed builder and qualified architectural draftsman.
Sam Al-Abdallah
Project Manager
With over three decades’ construction industry experience and strong credentials in large-scale project delivery across residential, retail and commercial projects, Sam is well known for his ability to effectively communicate and guide clients: from design and space planning to construction fitout and refurbishment selection.
Sam consistently delivers the highest standards of design, health, safety and financial management to multifaceted construction projects.
Sam holds a Diploma in Project Management and is a full member of the Building Designers Association of Australia (BDAA).
Our Advisory ‘Board’
Cornerstone is proud to be associated with respected industry-leading executives with a solid track record of delivering multimillion-dollar deals for their real estate and investment clientele. The valuable client relationship insights they bring Cornerstone help guide everything we do.