Asbestos in Divided Co-ownership: Quebec Work Rules

Before any work begins in a divided co-ownership, the board of directors must address asbestos rigorously. Many buildings constructed before the 1990s still contain materials that may contain asbestos. If you are planning work in common portions or private portions, legal obligations and best practices apply. This article, focused on “Quebec condo asbestos work,” will help you plan without surprises and protect occupants, workers and the syndicate.

Why asbestos concerns your divided co-ownership

Asbestos was used in many products: sprayed fireproofing, insulation, vinyl tiles, coatings, mastics, drywall panels and joint compounds. As long as these materials remain intact and undisturbed, the risks are limited. As soon as drilling, sanding, demolition or removal is planned, fibres may be released.

For the board of directors, the key is to presume that asbestos is present in any material in an older building until proven otherwise. This applies equally to simply running cables through a corridor and to completely renovating a plumbing stack. Preliminary identification prevents work stoppages, budget overruns and disputes with co-owners.

Quebec legal framework and the syndicate’s responsibilities

Quebec’s regulatory framework imposes strict measures when materials containing asbestos (MCA) may be disturbed. The obligations below are summarized and current as of 2026-06-17.

• Regulation respecting occupational health and safety (RSST): identification of MCA, safe methods, work categories, protective equipment and decontamination procedures. See the RSST on LégisQuébec: Regulation S-2.1, r. 13.
• Safety Code for the construction industry: safety requirements on construction sites, including contaminant management and containment. Reference: B-1.1, r. 2.
• Civil Code of Quebec (C.C.Q.): the syndicate’s purpose is to preserve the building, and it must take the necessary measures to that end (in particular, sections 1039 and following). See the C.C.Q..

In practical terms, the board of directors must:

• Plan and arrange for MCA identification before issuing any call for tenders.
• Retain competent professionals (industrial hygienist, laboratory, engineer) and compliant contractors.
• Require certified methods and proof of compliance.
• Inform occupants and control access to affected areas.
• Document and archive every step for the minutes and the statement of condition/maintenance logbook.

Pre-work process: identification, testing, plans and specifications

Preparation is the best quality, safety, cost and schedule safeguard. Here is the recommended sequence.

Identification and inventory of MCA

• Presumptive identification: a professional inspects the affected areas and identifies potentially asbestos-containing materials.
• MCA inventory: a compilation of the materials, their location and their condition. This inventory must be incorporated into your statement of condition and maintenance logbook and updated after interventions.
• Work scope: precisely describe what will be demolished, drilled or replaced, both in common portions and private portions if access is required.

Sampling, analysis and management plan

• Sampling: samples collected by a qualified professional and analysed by a recognized laboratory. Common methods (e.g., optical microscopy/PLM) determine the presence and concentration of asbestos.
• Risk assessment: consider friability, extent and accessibility. Friable coating in a stairwell is not managed in the same way as an intact vinyl tile.
• Plan and specifications: define the removal/disturbance methods, level of containment, negative-pressure ventilation, required PPE and the procedure for releasing the premises. In Quebec, work is generally classified by type (e.g., from simple interventions to major removals) in accordance with the RSST.

Management tip: avoid authorizing spontaneous “small” drilling jobs by contractors or co-owners without prior verification. A controlled exploratory opening always costs less than a work stoppage with emergency decontamination.

Carrying out the work: containment, contractors and RBQ

The syndicate should retain contractors who are familiar with asbestos-related work sites and have the required skills and equipment. The Regie du batiment du Quebec oversees safety on construction sites; consult its relevant section: RBQ — Safety in buildings and on construction sites.

Require the following in the call for tenders and contract:

• Resumes and training certificates for the workers involved.
• A detailed work procedure based on the type of intervention and RSST requirements.
• Containment plan: airtightness, negative pressure, ventilation and dust control.
• PPE list: suitable respirators, coveralls, gloves, and dressing and undressing procedures.
• Waste management: bagging, labelling and traceability through to the authorized disposal site.
• Quality control: clearance air testing by an independent third party, thorough cleaning and official reopening of the areas.

Think about logistics: clear signage, closing elevators or stairwells as needed, time periods that reduce the impact on occupants, and coordination with your suppliers (e.g., intercom and mechanical systems) to limit back-and-forth trips.

Communication, budget and documentation: avoiding disputes

Transparent communication limits friction. Notify co-owners in advance, specifying the areas, dates, access instructions and impacts (noise, dust and parking). A notice on the bulletin board and a formal email with acknowledgement of receipt are good practices.

As for the budget, certain asbestos-related work may be considered major repairs or replacements intended to preserve the building. Depending on the scope, funding could come from common expenses (condo fees) or the contingency fund. Record the decisions in the minutes, with references to the declaration of co-ownership and, where necessary, obtain approval at the annual general meeting. Your administrative management benefits from a structured approach; see our administrative management and operations management services.

Finally, archive the following carefully:

• Identification reports and laboratory analysis results.
• Plans, specifications and certificates of compliance.
• Register of notices to occupants and mitigation measures.
• Air-testing and area-release reports.
• Proof of waste disposal, before-and-after photos, and updates to the statement of condition/maintenance logbook.

These documents will be useful in a sale or when a notary requests supporting documentation, and they will reassure buyers that the syndicate is managing matters proactively. For more practical resources, explore our blog.

Key steps before work that may affect asbestos

Frequently asked questions

Q. Do we have to test every time we open a wall?

A. If the building dates from a period when asbestos was commonly used or the MCA inventory is incomplete, presume that asbestos is present. Targeted identification and spot testing are then required before authorizing drilling or demolition.

Q. Who pays: common expenses or the contingency fund?

A. Depending on the nature and scope of the work (routine maintenance versus major replacement), funding may come from common expenses or the contingency fund. Base your decision on your declaration of co-ownership and have it approved at the annual general meeting where necessary, then record it in the minutes.

Q. Can a co-owner carry out their own drilling?

A. No, not without prior approval. Require an authorization request that complies with the by-laws of the immovable, the RSST and the Safety Code, with proof of identification/testing and a safe work method.

This article provides general information and does not constitute legal advice. Consult a lawyer or notary regarding your situation.

Do you manage a divided co-ownership in Quebec? Explore our packages or contact us to assess your needs.