Is it safe to remove a popcorn ceiling in a Toronto home built before 1990 and could it contain asbestos?

No, it is not safe to remove a popcorn ceiling in a pre-1990 Toronto home without first having it professionally tested for asbestos — and there is a very real chance it contains asbestos. Popcorn and stipple ceiling textures applied in Ontario homes between the 1950s and late 1980s commonly contained chrysotile asbestos fibres, which were mixed into the spray-on compound to improve fire resistance and durability. Disturbing asbestos-containing materials without proper precautions is both dangerous and illegal in Ontario.

The testing process is straightforward and inexpensive. Contact an environmental testing company (not your drywall contractor — they have a potential conflict of interest) to take samples. The technician will cut small samples from the ceiling in 2–3 locations, seal the sample areas, and send them to an accredited laboratory for analysis. Testing typically costs $50–$150 for 2–3 samples, with results in 3–7 business days. Some GTA companies offer rush results in 24–48 hours for an additional fee. This small investment is non-negotiable — guessing is not an option when asbestos is involved.

If the test comes back positive for asbestos, the ceiling texture must be removed by a certified asbestos abatement contractor following Ontario Regulation 278/05. This regulation governs the handling, removal, and disposal of asbestos-containing materials in Ontario and sets strict requirements for worker protection, containment, air monitoring, and waste disposal. Professional asbestos abatement for a popcorn ceiling in a typical Toronto home runs $3,000–$8,000 depending on the size of the area, the number of rooms, and the complexity of the work. The abatement contractor will seal the area with polyethylene sheeting, set up negative air pressure with HEPA filtration, wet the ceiling to minimize fibre release, carefully scrape the texture, bag all waste in labelled asbestos disposal bags, and perform air clearance testing before releasing the space.

After abatement, the exposed drywall underneath will be rough, scarred from scraping, and need significant repair before it's paint-ready. Most GTA homeowners opt for a full skim coat over the scraped ceiling to create a smooth Level 4 or Level 5 surface. This adds $2.50–$5.00 per square foot to the project. Some homeowners choose to have the ceiling re-drywalled entirely with a new layer of 1/4-inch or 3/8-inch drywall over the existing surface, which provides a guaranteed smooth substrate and avoids the challenges of skim coating a damaged surface. Re-drywalling runs $3.00–$5.00 per square foot including hanging, taping, and finishing.

If the test comes back negative for asbestos, you can proceed with removal using standard practices — but it's still a messy, labour-intensive job that's best left to professionals. The standard removal process involves misting the ceiling with water and a small amount of dish soap (which acts as a surfactant to help water penetrate the texture), letting it soak for 15–20 minutes, and then scraping with a wide drywall knife. The softened compound comes off in wet sheets that fall to the floor — this is why the room must be completely emptied of furniture and the floors covered with heavy-duty plastic. It generates an extraordinary amount of waste and slurry.

Non-asbestos popcorn ceiling removal and refinishing in the GTA typically costs $2.00–$5.00 per square foot for the complete process: scraping, repair of any damage to the underlying drywall, skim coat for a smooth finish, priming, and paint-ready surface. For a 1,500 square foot Toronto bungalow with popcorn ceilings throughout, that's roughly $3,000–$7,500 for the full removal and refinishing.

Be aware of a common complication in Toronto homes. Many popcorn ceilings were painted over one or more times since installation. Paint creates a moisture barrier that prevents the water-soak method from softening the texture underneath. Painted popcorn ceilings are dramatically harder to remove — they require either dry scraping (dustier, slower, and more damaging to the underlying drywall) or chemical strippers. If the popcorn contains asbestos AND has been painted, the abatement cost increases because the process is more complex and generates more waste. Your testing lab should note whether paint layers are present in their report.

Another option that some Toronto homeowners consider is encapsulation — rather than removing the popcorn, covering it with a new layer of 1/4-inch drywall screwed through the existing ceiling into the joists above. This avoids the mess and potential asbestos exposure of removal entirely. However, encapsulation adds weight to the ceiling (verify the joists can support it), reduces ceiling height by about 3/8 inch after finishing, and does not address the asbestos — it simply seals it in place, which can complicate future renovations or become a disclosure issue when selling the home.

This is unequivocally a professional job. Even non-asbestos popcorn removal requires proper containment, ceiling repair skills, and professional skim coating for a quality result. If asbestos is present, Ontario law requires certified abatement professionals. Get matched with a drywall contractor through the Toronto Construction Network for a free estimate on your popcorn ceiling project.