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Your Trusted Construction Law Partner in Toronto
With over four decades of dedicated practice in construction law, McLauchlin & Associates brings unparalleled expertise to resolving complex legal matters in the construction industry. Our founder, W. Andrew McLauchlin, has been recognized as a leading authority in construction law by prestigious directories such as The Canadian Legal Lexpert Directory, Best Lawyers in Canada, and Martindale-Hubbell. Since 1975, our firm has represented owners, contractors, subcontractors, and material suppliers in litigation, arbitration, and contract negotiations, combining deep industry knowledge with a client-focused approach.

We prioritize practical solutions that minimize costs while maximizing outcomes, drawing on extensive experience in construction claims, lien proceedings, and dispute resolution. Our commitment to education and thought leadership is reflected in our active participation in teaching, speaking engagements, and publications. Certified as a Specialist in Construction Law by the Law Society of Ontario, we maintain rigorous standards of professionalism and client service, ensuring clients receive strategic, reliable legal counsel tailored to their needs.
Services
Construction Claims Litigation & Advocacy Construction Act Proceedings Contract Drafting & Review Bidding & Tendering Maintenance Contract Issues Building Code Compliance Mediation & Arbitration
Highlights and features
  • We offer over 45 years of specialized experience in construction law.
  • Our team includes a Fellow of the Chartered Institute of Arbitrators.
  • Certified Specialist in Construction Law by the Law Society of Ontario.
  • Recognized as a leading lawyer in The Canadian Legal Lexpert Directory and Best Lawyers in Canada.
  • Proven track record in resolving complex construction disputes efficiently.
Associations and certifications
  • Chartered Institute of Arbitrators
  • Law Society of Ontario
  • Canadian College of Construction Lawyers
Services
Construction Claims
We specialize in resolving construction claims arising from contract breaches, delays, and project disputes. Our approach combines industry-specific knowledge with strategic advocacy to ensure fair outcomes for clients. With decades of experience, we handle complex documentation, expert management, and presentation of claims to protect client interests in tender processes, holdback distributions, and warranty issues.
Litigation & Advocacy
Our firm represents clients in all levels of construction-related litigation, including tribunals, courts, and appellate proceedings. We provide robust advocacy in disputes involving liens, contract enforcement, and regulatory compliance. Our focus is on early resolution through negotiations while maintaining readiness for trial, ensuring clients achieve cost-effective and timely outcomes aligned with their business goals.
Construction Act Proceedings
We advise on rights and obligations under the Construction Act, including lien preservation, holdback calculations, and trust provisions. Our expertise helps clients navigate complex lien enforcement actions and compliance requirements, minimizing financial risks. We also assist in resolving disputes related to payment certifications and subcontractor claims through mediation or litigation.
Contract Drafting & Review
We draft and review construction contracts to clarify terms, allocate risks, and prevent disputes. Our services cover stipulated price, design-build, and cost-reimbursable contracts, ensuring alignment with industry standards. By addressing potential pitfalls during negotiations, we help clients establish clear frameworks for project execution and dispute resolution.
Mediation & Arbitration
We facilitate dispute resolution through mediation and arbitration, leveraging neutral third-party processes to achieve efficient outcomes. Our team includes certified arbitrators and mediators with deep construction industry knowledge. This approach reduces litigation costs and timelines while maintaining client relationships and project continuity through collaborative problem-solving.
People
W. Andrew McLauchlin
Principal
Recognized as a leading construction law expert since 1975, Andy McLauchlin is a Fellow of the Chartered Institute of Arbitrators and certified specialist by the Law Society of Ontario. He has authored numerous publications, taught at universities, and received awards for excellence in construction law.
Questions
What areas of law does McLauchlin & Associates specialize in?
We specialize exclusively in construction law, including claims, contract disputes, lien proceedings, arbitration, and compliance with the Construction Act.
How experienced is the firm in construction litigation?
With over 45 years of practice since 1975, we have extensive experience in litigation at all court levels and alternative dispute resolution methods.
Can the firm assist with contract drafting for construction projects?
Yes, we provide expert contract drafting and review services to mitigate risks and clarify obligations for all project stakeholders.
Is the firm recognized for its expertise in construction law?
Yes, our founder is recognized in The Canadian Legal Lexpert Directory, Best Lawyers in Canada, and holds a Martindale-Hubbell AV Preeminent rating.
What regions does the firm serve?
We primarily serve clients in Toronto and throughout Ontario, with experience in national and international construction matters.