
(416) 657-2222

Our mould removal process is designed to identify active and hidden mould growth, assess moisture-related conditions, and apply the most effective remediation solution. We focus on accuracy, safety, and long-term prevention — from initial inspection to final cleanup and guidance.
We begin with a detailed inspection to identify visible and concealed mould growth. Our specialists assess affected areas, moisture sources, and environmental conditions to understand the extent of contamination and potential spread.
Mould problems often develop due to leaks, humidity, condensation, or poor ventilation. We evaluate contributing moisture factors and determine how mould growth may be spreading throughout the property.
Containment barriers and HEPA air filtration systems are used to help control airborne mould particles and reduce cross-contamination during the mould remediation process. Proper containment helps protect unaffected areas and improve indoor air quality throughout remediation activities.
Based on our findings, we develop a targeted mould removal plan tailored to your specific situation. This may include containment measures, surface treatment, material removal, and cleaning methods designed to safely eliminate mould.
Once the remediation plan is approved, our team carries out the mould removal using proven methods and industry best practices. All work is reviewed to ensure proper removal, containment effectiveness, and a clean finish.
After completion, we review the work performed, explain the results, and provide guidance on moisture control and prevention strategies to help reduce the risk of mould returning.
A professional mould removal process helps restore a safer indoor environment and protects your property from ongoing mould contamination.
Know a homeowner, property manager, or business dealing with water damage, flooding, mould, storm damage, or another property emergency? Refer them to our team and earn rewards for qualified projects.
Whether you’re a returning client, property manager, or insurance professional, we offer preferred pricing as part of our long-term service relationships.





Mould problems don’t always start with obvious signs. Small patches, mild odors, or minor moisture issues can develop quietly over time. Addressing mould growth early helps prevent widespread contamination, indoor air quality issues, and costly remediation later.
Professional mould removal provides a safer indoor environment and helps protect your property from progressive mould contamination.
Posted on Gord PalbodTrustindex verifies that the original source of the review is Google. outstanding crew. thank you for an excellent job to Farzam and his crew.Posted on Khadijeh ChoupanTrustindex verifies that the original source of the review is Google. Thank you for an excellent job Majid. All that terrible cigarette smell and now it's all gone. It was like majic, Majid. Thank you. Thank you.Posted on Deb PyneTrustindex verifies that the original source of the review is Google. I had googled for heavy duty cleaning that was needed for my Brother, (has some physical issues) I supplied them with pictures. They sent me a quote & the job was scheduled immediately as it was time sensitive. I met the GTA Gentleman @ the front door of my brother’s condo. They went straight to work & did such an amazing job. I was thrilled with the out come as it was a big job. I would definitely recommend them to anyone!! Very professional, friendly & very respectfulPosted on Amin HamediTrustindex verifies that the original source of the review is Google. The 247-365 Restoration team responded quickly, arrived on time, and immediately took control of the situation. They were professional, well-organized, and clearly experienced in flood cleanup. Everything was explained step by step, and the cleanup was handled efficiently and carefully. A trustworthy choice for emergency water damage and flood restoration services.Posted on Sikander KanjiTrustindex verifies that the original source of the review is Google. Amazing experience, very professional, clean work, helpful and amazing crew.Posted on Tiana RoseTrustindex verifies that the original source of the review is Google. Nijen's team replaced and build a privacy wall on our back deck last Friday. They were professional, and efficient and we couldn't be happier with the end result. Thank you to Nijen and his team. We would definitely hire them again for our renovation needs and recommend them to everyone. TianaPosted on Mathew WhiteTrustindex verifies that the original source of the review is Google. I engaged First On Site as a preferred vendor through my insurance provider following an unsatisfactory experience with another restoration company. Understandably, I approached the process with some hesitation. From the outset, the team at First On Site demonstrated exceptional professionalism. They maintained clear and consistent communication, keeping me informed of all timelines and progress updates. Their responsiveness and attention to detail far exceeded my expectations. Upon arrival, the crew began work immediately and remained focused and diligent throughout the day. Their efficiency, professionalism, and respect for my property were commendable. Additionally, the team effectively liaised with my insurance company, ensuring the scope of work was completed exactly as described and to a high standard. I would not hesitate to recommend First On Site to anyone requiring disaster management or restoration services. Their commitment to quality and client satisfaction is truly exemplary.Posted on siddharth khannaTrustindex verifies that the original source of the review is Google. I called them at 7 am for an emergency basement pipe burst leakage and they sent out a crew within a couple of hours who knew exactly what needed to be done. They documented the damage thoroughly for insurance purposes and I faced no trouble. The team at GTA are professional and helpful. Totally recommend!Posted on Mark EsdaleTrustindex verifies that the original source of the review is Google. After a ice storm related basement flood the GTA team showed us what service meant!. They were here very quickly, with the proper drying equipment and some great staff members. They removed old carpeting/under padding and the bottom 12 inches of drywall from the affected flood area, installed and left drying machines, were back in a week to repair the drywall. We could not have asked for a better job, very glad we chose them.
Guaranteed on-site arrival within 45 minutes of your call, day or night.
Certified restoration, environmental inspection, & property assessment.
Fast scheduling available across the GTA, and Southern Ontario.
Professional documentation and support for insurance-related claims.
Honest, upfront pricing with no hidden fees or surprise charges.
Serving Toronto, the GTA, and Southern Ontario for 25+ years.
With over 25 years of hands-on restoration experience and more than 6,000 completed projects, we provide professional mould remediation services with detailed moisture assessments, mould inspections, and targeted remediation solutions. Our experienced team works to identify mould-affected areas, safely remove contamination, and help improve indoor air quality while reducing the risk of recurring mould growth throughout residential and commercial properties.
Clear & Transparent mould remediation Pricing
Accurate mould remediation Assessment & Targeted Remediation
Experienced mould remediation Removal Professionals
Our mould remediation team works to identify moisture conditions, assess mould-affected areas, and help property owners better understand the causes of mould growth and indoor air quality concerns throughout residential and commercial properties.
Clear answers to common questions about professional mould removal services, response times, treatment options, and what to expect during the mould removal process.
Yes. Our odor removal services are available 24/7 to respond to urgent odor issues. Whether you’re dealing with a sudden bad smell in the house or a persistent odor problem, our team is ready to help day or night.
In most cases, our technicians can arrive within approximately 45 minutes, depending on location and availability. Prompt response helps prevent odors from spreading or becoming more difficult to remove.
Pricing is based on the scope of the odor removal service, affected areas, and treatment requirements — not the time of day. We provide clear, upfront estimates before work begins.
Avoid using air fresheners or masking products, as they can interfere with proper odor assessment. If safe to do so, increase ventilation and avoid disturbing areas where odors seem strongest.
Yes. Our home odor removal service includes identifying odor sources such as absorbed smells in materials, enclosed spaces, or environmental factors. Treating the source is essential for long-lasting odor removal.
If odors persist after cleaning, return repeatedly, or affect multiple rooms, professional odor removal is often necessary. Lingering bad smells in the house usually indicate deeper odor absorption or underlying issues that require specialized treatment.
If you’re noticing visible mould, persistent musty odors, or signs of moisture-related damage in your home, professional mould removal can help restore a safer indoor environment. Our team assesses mould growth, identifies underlying moisture issues, and provides reliable mould remediation solutions tailored to your specific situation.
Serving Toronto, the GTA, and communities across Southern Ontario with rapid response restoration, waterproofing, and emergency property services when and where you need them most.