About MJ Reilly Constructions
Create. Construct. Remediate.
For nearly 20 years, MJ Reilly Constructions has been the trusted name in remedial building and construction services across South Sydney, the Illawarra & ACT. As a Registered Building Practitioner under the NSW DBP Act, we are experienced in Class 2 building remediation, supporting strata and apartment buildings with compliant, practical repair solutions.
We specialise in façade repairs, waterproofing, concrete remediation, roofing, and structural upgrades, delivering solutions that extend the life of buildings and ensure compliance with Australian Standards.
We partner with strata managers, remedial engineers, consultants, and property owners to deliver clear communication, professional project management, and reliable results. Our focus is on protecting structures, restoring value, and giving clients peace of mind. Backed by strong industry experience and an ethical approach, we turn complex building issues into lasting solutions.
How We Deliver Value
Specialist Expertise
In-depth understanding of building defects and rectification methods.
Full Compliance
NSW Building Practitioners Licence & NSW Builders Licence.
Tailored Solutions
Every project planned around your asset’s needs and your budget.
Proven Track Record
Consistent delivery of quality outcomes with minimal disruption.