How does the builders lien holdback work in Alberta?

In Alberta, the construction lien holdback is governed by the Prompt Payment and Construction Lien Act (PPCLA), which requires owners to hold back 10% of every payment made to a contractor for 60 days after substantial completion of the work. This holdback exists to protect subcontractors, suppliers, and workers who may have contributed to your project but haven't been paid by the general contractor.

Here's how it works in practice: every time you make a payment to your general contractor, you withhold 10% of that amount. If your renovation contract is $100,000 and you make progress payments throughout the project, you'd hold back $10,000 total. That money sits in your hands — not in trust, but you are legally obligated to retain it — until the 60-day lien period expires after substantial completion. "Substantial completion" means the project is essentially done and usable for its intended purpose, even if minor deficiencies remain.

The reason this matters to you as a homeowner is that you can be personally liable if you pay out the full contract amount and a subcontractor or supplier later files a lien. If a drywall company, electrician, or lumber yard wasn't paid by your general contractor, they have the right to register a lien against your property under the PPCLA. That lien can cloud your title and prevent you from selling or refinancing until it's resolved. Holding back the 10% gives you a fund to address any valid lien claims without coming out of pocket beyond the original contract price.

After the 60-day period expires with no liens registered against your property, you can release the holdback to your contractor. If a lien is filed during that window, do not release the holdback — consult a lawyer immediately. Liens must be filed within 60 days of the last date work was performed or materials were supplied, so the holdback period is designed to align with that window.

A few important Calgary-specific points to keep in mind. First, the PPCLA also introduced prompt payment rules — once you receive a proper invoice from your contractor, you have 28 days to pay (minus the holdback). Contractors then have 7 days to pay their subcontractors. These timelines are strict, so get your payment schedule in writing before work starts. Second, for larger projects, your lawyer may recommend a formal holdback trust account, though this is more common on commercial work than residential renovations. Third, always get a statutory declaration from your general contractor before releasing the holdback — this is a sworn statement confirming all subcontractors and suppliers have been paid.

For most residential renovations in the Greater Calgary area, the practical takeaway is simple: never pay 100% of your contract before the 60-day lien period clears. A reputable contractor will understand and expect this — it's standard practice. If a contractor pressures you to release the full amount immediately upon completion, that's a red flag worth paying attention to.

If you're dealing with a lien dispute or need help drafting a construction contract with proper holdback provisions, consult a Calgary construction lawyer. For finding qualified contractors who understand their obligations under the PPCLA, browse the Calgary Construction Network directory.