Tarion Warranty Claims

Tarion Warranty Claims — Engineering Support That Gets Results

Filing a Tarion claim without engineering documentation is how valid deficiencies get denied. We document defects to the Ontario Building Code, manage the claim strategy, and stand behind our reports at conciliation and the Licence Appeal Tribunal. Serving homeowners and condominium corporations across Toronto, Mississauga, Brampton, Vaughan, Markham, Oakville, Pickering, Oshawa and all of the GTA.

Who We Help

Boards, Homeowners, Lawyers and Insurers

Tarion’s pre-approved and preferred engineering consultant for six consecutive years — trusted on both sides of the process to be independent and evidence-based.

Condominium Corporations

Common-element warranty claims from the first-year performance audit through the builder's 18-month repair period and beyond.

  • Common-element claim preparation and strategy
  • Water penetration and envelope failure analysis
  • Major Structural Defect (MSD) investigations
  • Review of builder repair proposals and workmanship
  • Negotiation support with builders and Tarion
  • Expert reports for conciliation and the LAT

Homeowners

Individual warranty claims done right the first time — before deadlines pass and evidence disappears.

  • 30-day and year-end form support with engineering evidence
  • Year-two water penetration and systems claims
  • Seven-year major structural defect claims
  • Independent assessment before you sign off on builder repairs
  • Insurance claim investigations for construction deficiencies

Before You Sign Off on a Builder's Repairs

Get an independent engineer's opinion first. Deadlines in the Tarion process are unforgiving — contact us early.

Discuss Your Claim →

Very professional, friendly and timely resolution.

Homeowner, Muskoka
Tarion dispute with builder
FAQ

Common Questions

What does the Tarion warranty cover?

New Ontario homes and condominiums carry warranties over one year (workmanship and materials), two years (water penetration, major systems) and seven years (major structural defects). Common elements of condominiums have parallel coverage that begins at registration.

Do I need an engineer to file a Tarion claim?

It isn't mandatory — but valid deficiencies are routinely denied because the documentation doesn't tie the defect to the Ontario Building Code or the correct warranty category. As Tarion's pre-approved consultant, we know exactly what evidence gets deficiencies acknowledged and repaired.

What is a Major Structural Defect (MSD)?

A defect in work or materials that affects a load-bearing element of the building and materially compromises its structural integrity — covered for seven years. MSD claims almost always require an engineering investigation to succeed.

Can you help after a builder disputes our claim?

Yes. We prepare expert reports for Tarion conciliation and Licence Appeal Tribunal (LAT) proceedings, review builder repair proposals, and provide expert testimony where needed. We work alongside your legal counsel.

Do you work for homeowners as well as condo boards?

Both. We represent individual homeowners on 30-day, year-one, year-two and seven-year MSD claims, and condominium corporations on common-element claims following the performance audit.

Serving the Greater Toronto Area & Ontario

Toronto • North York • Scarborough • Etobicoke • East York • Mississauga • Brampton • Vaughan • Richmond Hill • Markham • Thornhill • Aurora • Newmarket • Stouffville • King City • Oakville • Burlington • Milton • Halton Hills • Pickering • Ajax • Whitby • Oshawa • Caledon — plus Hamilton, Ottawa and communities across Ontario.

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