Ceiling Mould Removal in Toronto & the GTA
A mouldy ceiling is a message from whatever is above it. On a top floor it is usually the roof or attic condensation. Under a bathroom it is usually the shower or toilet. In a condo it is often the unit upstairs.
Cleaning the stain without finding the source means it comes back, and a ceiling that has been wet can sag or fall. We find where the water is coming from first, then remove the affected drywall and insulation and rebuild.
Covered by insurance? We bill your insurer directly, so in most cases you pay only your deductible. What your policy covers →
Signs of ceiling mould
- Grey, brown or black spotting spreading on the ceiling
- Water rings or yellow staining
- Sagging or bubbling drywall or paint
- Mould in the corners where the ceiling meets outside walls
- Dripping during rain or after someone showers upstairs
- Growth around recessed lights or the bathroom fan
What the job includes
- Source tracing: roof, attic ventilation, plumbing or the unit above
- Moisture readings through the ceiling and in the attic or floor above
- Containment and HEPA filtration
- Removal of affected drywall and wet insulation
- Drying of joists and framing to a measured standard
- Correction of attic venting or bathroom fan ducting where that is the cause
- Ceiling rebuild and paint through our reconstruction team
- Written verification on completion
Who we do this for
- Homeowners
- Condo owners with a leak from above
- Landlords
- Property managers and building owners
When to call us
Straight away if the ceiling is sagging, bulging or dripping; get people out from under it. Otherwise when a stain grows or returns after painting.
Three steps
You call, we pick up
A person answers at any hour. Tell us what you are looking at and we will tell you what to do first.
We attend and stabilise
Usually within 45 minutes. We stop the damage getting worse before anything else happens.
We finish and bill your insurer
Documented daily, completed properly, invoiced to your insurer rather than to you.
What ceiling mould removal costs you
We bill your insurance company directly. On most covered losses that is the only amount you pay us.
Water damage is the most common home insurance claim in Ontario, and the great majority of the work we do is paid by an insurer rather than by the property owner. We document every loss from the first hour with moisture readings, photographs and a written scope, which is the evidence an adjuster needs to approve the work without argument or delay.
We work with all major Canadian insurers and handle the claim from start to finish, including the adjuster's questions. If you are not insured, or the loss falls outside your policy, we will give you a clear written quote before any work begins and we will tell you honestly what can be dried and saved rather than replaced. Keeping material in place is what keeps the cost down, and it is the first thing we look at.
There is no charge for attending to assess an emergency, and no obligation once we have. What your policy covers →
Who turns up
Delta24 Restoration is a professional restoration contractor serving Toronto and the Greater Toronto Area. Our technicians are certified by the IICRC, the industry standards body for the restoration trade, in Water Damage Restoration (WRT) and Applied Structural Drying (ASD). We are WSIB cleared and carry full commercial general liability insurance. Certificate numbers and a current clearance certificate are provided on request, and property managers and adjusters routinely ask for both before we attend.
We work to the IICRC S500 standard for water damage restoration and the S520 standard for mould remediation. Every job is documented with daily moisture readings, photographs and a written scope, which is why adjusters approve our work without delay.
Asbestos work is carried out to Ontario Regulation 278/05, which sets out the procedures for Type 1, Type 2 and Type 3 operations. Mould work finishes with written post-remediation verification, which is the document a buyer, a lender or an insurer will ask to see.
- IICRC WRT certified technicians
- IICRC ASD certified drying
- WSIB cleared, certificate on request
- Commercial general liability insurance
- Asbestos work to O. Reg. 278/05
- Direct billing with all major Canadian insurers
- Years of insurance claim experience with every major insurer
- Written post-remediation verification on mould work
- Free assessment, no obligation
How the insurance side works
Water damage is the most common home insurance claim in Ontario, and how the claim is handled usually matters more to your bill than the work itself. We document the loss from the first hour: moisture readings, photographs, a written scope, and a daily drying log. That is the evidence an adjuster needs to approve the work without arguing about it.
We bill your insurer directly. In most cases the only money you hand over is your deductible, which on Ontario policies commonly sits between $500 and $2,500.
Which losses are covered depends entirely on where the water came from. A burst pipe or a failed appliance is normally covered under a standard policy. Water coming up through a floor drain is sewer backup, which is almost always a separate endorsement you have to have purchased. Water entering from outside during heavy rain is overland flood, which is another endorsement again. A single storm can produce all three at once, which is why adjusters care so much about the source.
Full guide: is a flooded basement covered by insurance? →
How the claim works, and what your insurer covers →
Common questions
Why is there mould on my ceiling?
Water from above: a roof or flashing leak, condensation in the attic, a bathroom or plumbing leak on the floor above, or in a condo, the unit upstairs.
Why is the mould only in the corners?
Corners where the ceiling meets an outside wall are often under-insulated, so they stay cold and collect condensation. It is a moisture and insulation problem more than a leak.
Is a sagging ceiling dangerous?
Yes. Wet drywall can give way under its own weight. Keep people and pets out from under it and call us.
Who pays in a condo?
It depends on where the water came from and the condominium's declaration. We document the source so your insurer and the corporation can sort out responsibility.
Ceiling Mould Removal across the GTA
Pick your area for local detail: what the housing stock is like, why water gets in there, and the neighbourhoods we cover.