Mold Removal – Emergency Restoration

Mold Removal & Remediation Services

24/7 Emergency Restoration Service in GTA - 45 Minutes Response Time

Serving Toronto, Markham, Richmond Hill, Vaughan, Stouffville, Scarborough, Pickering, Whitby, Oshawa & surrounding Areas

Mold Inspection - Mold Testing & Air Quality Testing - Black Mold Removal - Attic Mold Removal - Basement Mold Removal - Complete Mold Remediation & Prevention

Mold can be costly, difficult to remove, and dangerous for your health. Improperly handled water damage can lead to mold. If the mold is left unchecked, it could further result in reduced indoor air quality and an unsafe environment. You might not even see it at first. But it grows fast, spreads silently, and can cause serious problems for your health and your property.

Mold is a type of fungus that releases microscopic spores into the air. When you breathe those spores in, your body reacts — sometimes mildly (like a runny nose or itchy eyes), and sometimes seriously (like asthma attacks, persistent coughing, or respiratory illness). Children, seniors, and people with allergies are especially vulnerable.

What our customers say

Last week We had a big flood in our apartment building, and 4 of our apartments got effected,we found ONCALL RESTORATION online and they showed up in 30 Minutes and got the complete job done in 3 days . We are very pleased with their team

Arsh Ali

Best restoration Toronto company for water damage and mold removal.they dried water from our medical office and did mold remediation That was caused by water damage. Very clean and professional team.

Mikki

We are very pleased with the service provided by Oncall Restoration. They performed beyond what they had expected. They were on time and followed the schedule they had presented. There were no surprises or snags We high recommend Oncall.

Jack Brass

We Make the Insurance Process Easy

Mold removal is often covered under your home or commercial property insurance, especially when it results from a sudden and accidental event like a burst pipe or storm flooding. The claims process can feel overwhelming.

Here is the good news: Oncall Restoration handles all of it for you.

We provide detailed written reports and documentation required by your insurance company
We communicate directly with your insurer or adjuster on your behalf
We offer comprehensive photo documentation and scope of work reports
We can provide mold testing reports that meet insurance standards
Our invoices are formatted to meet the requirements of most major Canadian insurers
We work with all major insurance providers in Ontario

Note: Insurance coverage depends on the cause of mold and your specific policy. We recommend reviewing your policy or speaking with your broker. Our team can advise you on what documentation will support your claim.

We Work with Major Insurance Companies

The Health Impact of Mold: What You and Your Family Are at Risk For

We want to be honest with you — mold is not just a cosmetic problem. It is a genuine health risk, especially for certain groups of people. Here is what the science says about mold exposure:

Who Is Most at Risk From Mold Exposure

Children under 12 — developing lungs and immune systems are more vulnerable to mold toxins
Elderly individuals — weakened immune response makes fighting mold-related illness harder
People with asthma, allergies, or chronic respiratory conditions
Pregnant women — mold exposure has been linked to complications during pregnancy
People with compromised immune systems (cancer patients, HIV/AIDS, organ transplant recipients)
Pets — cats and dogs are also affected by mold toxins in the home

What Happens When Mold Is Not Properly Removed?

Mold spreads to other rooms through your HVAC system and air ducts
Spores become airborne during improper cleaning, increasing health risks
The root cause (moisture problem) goes unfixed, so mold returns in weeks
Hidden mold behind walls or under flooring continues to grow undetected
Structural damage worsens — mold can eat through drywall, wood, and insulation
Property value decreases significantly when mold issues are discovered during inspections
Insurance claims can be denied if damage worsens due to delayed or improper treatment

Common Types of Mold We Remove

Not all mold is the same. Here is a plain-language guide to the most common types of mold found in Ontario homes and buildings:

Black Mold: This is the most feared and well-known toxic mold. It appears greenish-black and slimy, and grows in areas with chronic water damage. Black mold produces mycotoxins that can cause serious respiratory illness, headaches, and in severe cases, neurological symptoms. If you suspect black mold, do not disturb it — call us immediately.

Aspergillus: One of the most common indoor molds, Aspergillus can appear in dozens of colours. It often grows on walls, insulation, and in HVAC systems. In people with weakened immune systems or asthma, it can cause lung infections.

Cladosporium: Usually olive-green to brown or black, this mold commonly grows on fabrics, carpets, and wood surfaces. It is a frequent trigger for allergies and asthma. It thrives in cooler areas like basements and around windows.

Penicillium: Often blue or green with a powdery texture, Penicillium spreads quickly and is found in water-damaged materials, wallpaper, and insulation. It produces allergens and, in some cases, mycotoxins.

Alternaria: Dark green to brown, this mold typically grows in showers, bathtubs, and under leaking sinks. It’s a major asthma trigger and spreads rapidly if left untreated.

Protect Your Home from Severe Damage – Get Expert Help Now

At Oncall Restoration, we don’t just scrub surfaces and hope for the best. We follow a proven, industry-certified remediation process that finds mold everywhere it’s hiding, removes it completely, and makes sure it doesn’t come back.

Our team of mold cleanup experts only use the most advanced tools and equipment to ensure your home is free of mold and your family is safe. Our team is professionally trained and certified by the Institute of Inspection, Cleaning & Restoration Certification (IICRC). And we can mobilize quickly – we’re available anytime, 24 hours a day, 7 days a week.