Regulation Implementing Bill 16 Quebec — Co-Ownership 2025: What You Need to Know
English translation/adaptation of the French article.
If you are searching for the latest on Bill 16 Quebec, this page summarizes the new regulation, key deadlines, and how condo syndicates can prepare. The regulation reshapes planning and documentation for co-ownership in Quebec. If you manage the building envelope, our
condo & co-ownership caulking services help align maintenance with these rules.
The three obligations introduced by the regulation
1) Maintenance log (“carnet d’entretien”)
Mandatory from August 14, 2025. The maintenance log centralizes building condition, recurring tasks, and recommended timelines. It must be prepared by an independent professional (engineer, architect, technologist, or certified appraiser), updated yearly by the board, and reviewed every 5 years (or 10 years for qualifying small buildings). Logs completed between 2023 and 2025 are recognized if compliant.
Caulking belongs in the log because it directly protects frames, masonry, and insulation. Replacing failing sealant improves airtightness and prevents infiltration. See our
windows & doors caulking for typical scopes and materials.
2) Contingency (reserve) fund study
This forecast sets contributions for major repairs over a 25-year horizon to avoid surprise assessments. The first study is due no later than August 14, 2028 and then renewed every 5 years. Earlier studies (2023–2025) remain valid when done by authorized professionals to the proper standard.
3) Sale-time attestation of the co-ownership’s state
Upon unit sale, the syndicate must provide an attestation within 15 days of request. It summarizes the financial position, key elements of the maintenance log, and the reserve fund. The goal is standardized, reliable information for buyers and lenders.
Why the regulation is a win for co-owners
- Prevents sudden special assessments with long-range planning.
- Improves documentation, transparency, and supplier coordination.
- Keeps property value stable by prioritizing preventive work.
- Gives boards clear tools to schedule and budget with confidence.
Practical application & building maintenance
The reform isn’t just paperwork—it affects day-to-day durability. Failing sealant joints cause water infiltration, heat loss, and premature material decay. Without a plan, these issues create unbudgeted costs that undermine your reserve study.
For multi-storey and mixed-use buildings, see our commercial caulking. We document materials and results so your professional can update the maintenance log efficiently.
Terminology: “Bill 16 Quebec” vs “Loi 16”
English sources commonly refer to the reform as Bill 16 Quebec, while French sources use Loi 16. Both point to the same legal framework that governs co-ownership planning, documentation, and financial forecasting. If your owners or suppliers search in English, including the phrase Bill 16 Quebec in notices, newsletters, or your website helps them find accurate guidance. For French communications, retain “Loi 16” and reference your English page for bilingual clarity.
How to prepare now (step-by-step)
- List assets: windows, doors, façades, roofs, parking membranes, mechanicals, with ages and known issues.
- Collect records: invoices, warranties, photos, past reports—create a single folder for your professional.
- Book the maintenance log: request a format that supports annual updates and 5-year reviews.
- Prioritize preventive work: target infiltration risks first—sealants often have the highest ROI.
- Plan the reserve study: schedule well before 2028 and brief owners on expected contributions.
Laplante Calfeutrage: your maintenance ally
We help syndicates prevent infiltration, improve energy efficiency, and extend service life with proven sealants and safe access methods. Need a quote? Contact us for a free diagnostic.
FAQ — Bill 16 Quebec
When does the regulation take effect?
Adopted July 30, 2025; in force August 14, 2025.
Is the maintenance log mandatory for all co-ownerships?
Yes. As of August 14, 2025, every co-ownership must have a log prepared by an independent professional.
How often is the log updated?
Annually by the board, with a professional review every 5 years (or 10 years for qualifying small buildings).
What is the reserve fund study?
A 25-year plan that aligns technical priorities with steady contributions to avoid special assessments.
Consequences of non-compliance
Skipping the log, the reserve study, or the sale-time attestation can trigger unexpected costs, disputes, and transaction delays. Buyers expect transparency; missing documents reduce confidence and can stall sales.
Conclusion
The Bill 16 Quebec regulation modernizes condo stewardship. A compliant maintenance log, a timely reserve fund study, and routine caulking work protect your building and budget. For envelope tasks that fit neatly into your yearly updates, contact Laplante Calfeutrage—we’ll help you plan, document, and execute with confidence.




