Serving All Of Ontario!

Professional Mold Removal

Moulds are always present in our environment, almost any substance where moisture is present but they can become a problem in any structure if excessive water or moisture problems are not appropriately addressed. Left unattended, mould can rot lumber, drywall and other building materials. To remedy this you need to have a qualified, licensed contractor to remove the existing and cause of the mould. Otherwise increasingly more costly property damage can occur. Specialized Onsite Services Inc. can help with all your mould removal needs efficiently and effectively.

Mould testing

SOS offers mould removal service for Ontario home owners, real estate agents, business owners, home inspectors and anyone battling mould infestation issues. Mold can affect person's health, and for that reason alone you need to react immediately and call SOS for help. Various practices can be followed to mitigate mold issues in buildings, the most important of which is to reduce moisture levels that can facilitate mold growth.  Removal of affected materials after the source of moisture has been reduced and/or eliminated is always necessary for complete remediation.

Ontario Mould Specialists

If you think you have mold in your home, place of business or building — don't panic. Call us immediately, and we'll come out and do an inspection and test air quality. We remove mold safely and effectively. Our mold remediation process doesn't leave any nasty residue, harsh chemicals or require major clean-up, leaving no evidence of the presence of mould.

How To Identify Mould?

Mold or Mould is a fungus that grows in the form of a long, branching filamentous structure. Molds cause biodegradation of natural materials, which can be unwanted when it becomes food spoilage or damage to property. Mold in the home can usually be found in damp, dark or steamy areas e.g. bathroom or kitchen, cluttered storage areas, recently flooded areas, basement areas, plumbing spaces, areas with poor ventilation and outdoors in humid environments. Mould reproduces by releasing spores into the air that subsequently land onto surfaces and begin germinating and growing into mould cells. If a person is exposed to air with mould spores - they can get sick. Symptoms caused by mold allergy are watery, itchy eyes, a chronic cough, headaches or migraines, difficulty breathing, rashes, tiredness, sinus problems, nasal blockage and frequent sneezing.

Mold in house walls

Why Choose Us for Mould Removal?

  • Specialized Onsite Services provides mould removal in Ontario.
  • Our certified and trained technicians are able to remove and remediate mould from any location.
  • We are recognized by the Professional Engineers of Ontario as a qualified company meeting the requirements of the Ministry of the Environment and the TSSA.
  • We provide full environmental assessment and reporting.
  • Professional, experienced, fully insured and certified.

Mould Evaluation and Removal In Your Area

We provide Mould Evaluation and Removal services :

Frequently Asked Questions

Persistent musty odors, dark or fuzzy spots on walls, ceilings, grout, window frames, or damp basements—especially after leaks or high humidity—indicate mould. If you suspect mould in your home or commercial space, please contact Specialized Onsite Services for more information.

Specialized Onsite Services does not recommend that you use household products or bleach to remediate mould. Bleach may fade the stains of mould growth, but it does not effectively kill it. Please contact Specialized Onsite Services to book a site visit to assess your mould related concerns.

If you can see or smell mould, it is safe to assume that mould is present and that you should have it addressed. Air testing for mould is recommended if a musty smell is persistent, but no visible mould is present. Specialized Onsite Services can provide a qualified person to conduct air quality testing for mould.

Symptoms may include nasal congestion, coughing, wheezing, headaches, eye or skin irritation, and fatigue. People with asthma, allergies, or weakened immunity often react more strongly; see a physician if symptoms improve away from home.

Remediation projects vary. For small contained jobs you can usually stay within the home, but away from the work area. Extensive remediation requiring full containment and negative-air machines may result in you relocating until the project is complete. Please contact Specialized Onsite Services for more information regarding your specific mould project.

Timelines vary by job size, location, and risk level. Please contact Specialized Onsite Services for a job specific quotation and timeline.

Repair leaks promptly, keep indoor humidity below 50%, dry wet areas within 48 hours, run exhaust fans in kitchens and baths, and store belongings off basement floors. Moisture control is the only long-term defence.

Client Testimonials

Just to let you know, all of the people that were sent here were very professional , polite and did their very best to treat things respectfully...that is not always the case and I really appreciate it. If I had to do it again (and I pray to God I never have to) I would want your people helping us.

— W.M.

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Google Rating

4.6      10 reviews


Photo of Dan Shaw

Dan Shaw
  April 29, 2025

Five stars for prompt, reliable and reasonably price for the recent remediation work that was complted at our home. Kristin and her team at S.O.S. were absolutely fantastic to deal with. Thank you for a great experience. Dan Shaw

Photo of Jeff Fletcher

Jeff Fletcher
  March 04, 2025

An exceptional company to deal with. I cant say enough good things about them.

Photo of Georges TGV49

Georges TGV49
  March 12, 2024

When we found a large area mold in our attic and basement, we reached to SOS. During the work, they had found more hidden mold and means more work than expected. They returned our home next day and got this resolved properly and thoroughly. We are so satisfied and feel grateful to have SOS team to deal with it. We will strongly recommend SOS if someone encounter the similar situation and need professional help.

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Eco Demolition
  August 11, 2022

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Danosh Construction
  August 11, 2022

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