Sagging Drywall Repair in Toronto

Most moderate sagging drywall repairs, covering an area of 1-4 feet, can be completed within 3-5 hours. More severe cases might take 5-8 hours, depending on the extent of damage and any necessary framing work.

Patching over sagging drywall is generally not recommended. Sagging indicates a structural issue or moisture damage, and simply patching won't address the root cause. The damaged section usually needs to be cut out, the underlying issue resolved, and new drywall installed for a lasting repair.

Look for discoloration, water stains, or a soft, spongy feel to the drywall. If the sag is accompanied by these signs, especially near plumbing fixtures, windows, or the roofline, a water leak is highly probable. We always investigate for moisture during our assessment.

While sagging drywall itself isn't usually a sign of major structural failure in the house's main frame, it often points to localized structural issues within the ceiling or wall assembly, such as inadequate framing or water-damaged joists/studs. It's crucial to address it promptly.

RenoHouse provides full GTA coverage, including Toronto, Etobicoke (our base), Mississauga, Brampton, Vaughan, Markham, Richmond Hill, and other surrounding municipalities. We're ready to serve homeowners across the region.

Our 1-hour photo-to-quote, powered by Telegram and Gemini Vision, is highly accurate for providing an initial transparent pricing band. For complex cases or if we identify potential hidden issues from your photos, we'll clearly communicate any need for further assessment before starting work.

While our primary service is drywall repair, our assessment includes identifying the likely cause of the sag. If a water leak is suspected, we'll advise you on the necessary steps to remediate the leak before we proceed with the drywall repair, ensuring a lasting solution.

Moderate repairs (typically $350-600 CAD) involve smaller areas (1-2 feet) with less complex underlying issues. Severe repairs ($600-950 CAD) are for larger areas (3-4 feet or more), often involving significant water damage, mold remediation, or more extensive framing reinforcement.

Overlaying plaster with ¼" or ⅜" drywall is often more practical and cost-effective than removing plaster entirely. It creates a smooth, modern surface while avoiding the mess and expense of full demolition. We secure the drywall through the plaster into the studs for a solid, lasting result.

We use fiberglass mesh tape and flexible joint compound to bridge plaster cracks, then skim-coat the entire ceiling for a seamless finish. For severely damaged ceilings, we may recommend removing the plaster and installing new drywall — which also gives you the opportunity to add insulation.

Yes, but moisture management is critical first. We ensure proper waterproofing, install vapor barrier where needed, and use moisture-resistant drywall for basement applications. Proper framing and insulation transform raw basement space into comfortable living areas.