A Mold Professional is waiting for your call, not an answering service
Servicing Toronto & the surrounding GTA

About Us

About Our Mold Services in Toronto

Formerly known as MoldServices now known as The Mold Guy started when owner Ross Sullivan decided after 25 years in the Toronto construction industry it was time for a personal change. Staying within something he knew well and after many hours of in class training, became a Home Inspector, followed by more in class training to become a Mold Inspector. Working in Toronto with several mold companies we realized it was time to do it better, it was time to treat customers fairly.

We had to assess the competition in Toronto so with a friends help we called in 12 mold inspection companies to inspect his home for mold (we knew he had mold in the basement around the washer)


We realized that it wouldn’t be hard to raise the standard, we chose to become the standard by which other companies should follow. We start by treating your home as if it were our own and our customers as friends and family.

Never ending education is the key to excellence, below is our list of our ongoing educational experiences.

At The Mold Guy our goal is to provide great service above and beyond that of our competitors. The Mold Guy understands that every client deserves honesty, reliability dedication and our commitment of Excellence. We’re not satisfied, unless you are! The Mold Guy prides itself in being your ethical Mold Inspection and Mold Removal professionals.

Certified Mold Professionals:

What Our Client Say

By far the very best contractor I have ever worked with. Ross was extremely helpful, patient, answered all my questions in layman’s terms so I could understand him. All work completed on time and to my complete satisfaction..thanks Ross

Joe Bimblich from Richmond Hill Mold Removal Attic

Ross came by for a service call to assess my attic for mold. I had several other companies in to look at it and it sounded quite dire. Ross took the time to explain to me what was causing the issue, how serious it really was (it wasn’t) and overall was very honest, even though he could have totally played it up as his competitors did. The fact that he is a home inspector gave me a lot of comfort in his recco In the end, Ross saved me considerable angst and money and we will definitely be using him in the future.

David in York Attic Mold Assessment

While preparing an exercise corner, we discovered mould in our basement. We called Moldservices.ca Inc. and within 2 days Ross and his team were at the house taking care of the problem. The whole team were very professional, hard working, competent and friendly. Moldservices.ca went above and beyond when I asked them to do some additional work and they did it no questions asked. Ross is always smiling and he came and inspected his team’s work to ensure our satisfaction. I highly recommend this company. This is the only company you should call if you have a mould problem. I couldn’t have been more pleased. Well done.

Paula Olson from Mississauga Mould Removal in Basement

While getting a quote for new insulation in the attic we were told that we had a serious mold problem in the attic. After a few very expensive quotes with lots of added extras, Ross came and gave a reasonable quote, came and did the work promptly without any fuss or unnecessary extras. We were very pleased with the service.

Toronto Bigmac Mold Remediation in Attic

Ross came by our place the afternoon after I first called the company. He was very friendly, knowledgeable and put all my fears aside. I had a small bit of mold behind my basement bathroom baseboard (which Ross cleaned for me) and he even helped with my “moldy” smelling washing machine! He didn’t waste my time with expensive tests, and other pricey suggestions. Thanks Ross for your help, you put this Mom’s fears at rest!

Krystal Dicsh from Brampton Mold Detection

The building inspector found some mold in the attic of a home we were selling. We called Ross, who showed up quickly, assessed the situation and resolved it – all within about 48 hours. The buyers were satisfied and the real estate transaction went through. Great service. Would highly recommend.

Warren in Oakville Mold Removal in an Attic

Ross came to our home promptly and was very thorough in inspecting our home and advising us what to do for preventative maintenance. He is a solutions and customer oriented person whom I would very much recommend to others.

SR from Toronto Mold Inspection

I had Ross from MoldServices.ca fix a mold issue in my cold storage. He and his crew were professional, courteous, and got our job finished sooner than originally quoted.

Eli in North York Mold Removal

I got 3 quotes from different companies. Ross came over and answered all my questions and gave me a competitive quote. He and is crew came and did all the work described on the estimate. I’m very happy with the work they did and they were a pleasure to deal with. Honest and reliable. Goodbye mold!

Suzanne from Toronto Mold Removal in the Basement

I called Ross after hours in for a client, he was prompt, knowledgeable, reliable and provided a solution with honesty and integrity. He thoroughly inspected the property-inside and out. I will definitely use Ross in the future.

Susan McHardy from Toronto Mold Detection and Remediation Services

We called Moldservices.ca to look at a potential mold issue for a property we were selling. The customer service team was very friendly and accommodating and were able to book us the very next morning. For the inspection, Ross came by and was very efficient and helpful during the inspection. Thankfully there were no serious mold issues and we were very grateful for their help!

Colleen from Toronto Mold Inspection

I am a Real Estate Sales professional and this is the second time I have called Ross Sullivan to inspect a property and check for Mold. I would highly recommend MoldServices.ca and Ross Sullivan to anyone. Ross was thoroughly efficient and was amazing with my clients (the homeowners). He was polite and did not alarm them with regard to the presence of Mold in their home. I can honestly say that Ross is an absolute professional and I will continue to recommend him and his services to anyone.

Sue Phillips in Newmarket Inspection for Mold

We cannot praise Ross from Moldservices.ca enough. We contacted him whilst out of country on a possible mold issue in our home. Within 3 days he was at our home inspecting in fine detail every inch of our home. He kept us well informed ( even emails near midnight his time! ) he expedited all air samples for us. We loved most about this company was the honesty and how methodical he was in his investigations..Within 48 hours we had a detailed report from him. Much to our relief our home is 100% mold free! He was so professional and exceptionally well priced. Thank you so much Ross! 10/10 for your wonderful company!!!!! I do not hesitate to recommend your professional company.

Gill Bradfield from Toronto Mold Inspection

I contacted MoldServices.ca and spoke with a very helpful woman. She was very well informed as to mold and their services. She heard me out, asked questions and then scheduled Ross to come out for the inspection. Ross came the next day and was extremely professional. He knew right where to look and found mold that I did not even know was there. He took pictures and humidity readings within the walls. Ross was very patient with my questions and explained everything thoroughly. He produced a professional detailed report and even asked if I had any further questions after the report was complete. I am very happy that I found MoldServices.ca! I will call them again if I ever need help with mold again and I will recommend them to all of my friends.

Margaret Mudrie from Toronto Mold Inspection

I saw some what I thought to be mold in my basement, and got lots of condensation on my windows so I called these guys. The lady on the phone was very helpfull and friendly she put me at ease and I had an appointment booked in no time. They arrived on time and did a really good in depth inspection, Ross put my mind at ease in no time, thankfully I had nothing to worry about. I would recommend these guys to any one that had concerns about mold in their home.

Karen from Toronto Concern of Mold

Honest, respectful, understanding and truly a company that takes pride on their work. Ms. Kay took the time to explain to me the things they are going to do to our basement and with the follow-up assurance from Mr. Ross a job well done! The price we paid was well worth it and they worked on our problem so fast. From the time they started to the time they finished, we never even feel that someone was working on our house. I will recommend your company anytime, anywhere to anyone! To the moldservices.ca staff and crews, thank you, thank you, thank you!

Caroline in Scarborough Basement Water Damage and Mold Removal

Ross from Mold Services showed up at our house to do the initial assessment and found an inordinate amount of mold on both the main and second floors. He was very knowledgeable, explaining the options and allaying my concerns especially since my elderly mother also lives there. I was impressed by the quick turnaround time in their returning to get the job done. Ross and his colleagues were very considerate and careful with the furniture and broadloom in our home. They got rid of the mold and used natural products in the process which was a pleasant surprise. I would highly recommend Ross and his team for their expertise, friendly customer service and fair and reasonable prices. Thanks for all of your help!

Kim in Toronto Mold Clean Up & Removal

Ross at MoldServices.ca, there is no one else! I had a mold problem in my basement so after looking around for quotes I finally came across MoldServices.ca. In doing my research I found his price to be the best and their service was excellent. Ross and his crew were very friendly and always had a smile on their faces. Ross is very knowledgeable and when explaining the procedures he broke it all down so that I could understand ( knowing nothing about mold). Ross and his crew go rid of my problem. They left their work area spotless I didn’t even know that they were there. I will be definitely be recommending his services to everyone I know. Thanks Ross and MoldServices.ca

Mike in Brampton Mold in my Basement

Dear Mr. Sullivan, I want to thank MoldServices.ca for all your help. You all did a great job with our bathrooms. The mold removal, fan and roof vent installation were done very professionally. I highly recommend your services.

Husain in Scarborough Mold Removal in the Bathroom

We had mold in our attic and the problem weighed us down because of the estimated cost and the recommendation of the inspectors that came to see our attic. Then Ross from MoldServices.ca came to inspect, evaluate and explained the common sense behind the attic mold. I wasn’t selling the house so I had not a lot of money to budget for attic mold remediation. Ross gave us a very very reasonable option and quotation and did the good job with no additional cost. Before you pay a lot of money to clear the mold in your attic, I will recommend you call MoldServices.ca they were doing the inspection for free.

Lanre in Markham Attic Mold Removal

Hi Ross, You came to our home a few weeks ago to treat the mold in my bedroom. I just wanted to thank you for your work. I was impressed by the fact that you used natural products to remove the mold as I am sensitive to chemicals. I was also impressed by how quickly you did it. I will be recommending you to both my friends and family. The company I work for provides services to seniors and has a home maintenance program and I will ask the manager of that program to keep you as a contact for clients with mold issues, as long as that is alright with you.

Pawan in Toronto Mold Inspection in the Bedroom

I wanted to thank you so much for the consultation you gave us on our home. After contacting half a dozen mold inspection services, I went with you based on your knowledge, friendliness and honesty over the phone with me. It helped tremendously being able to speak with the person that I was actually going to meet. You arrived punctually and spent a great deal of time inspecting my house. At no time did I ever feel that you were in a hurry, and further that you were looking to sell me other services. The consultation you gave me was thorough and eye opening. I know that when it comes time to actually clean up the mold problem, that your service will be the one we use.

Mark in Toronto Basement Mold Inspection

Hi Ross, just a short note to thank you for the wonderful service you provided. Your timeliness, professional work ethic and positive attitude exceeded our expectations. Your responsiveness, customer service and your ability to answer all our questions were greatly appreciated. You solved our situation and explained the procedures thoroughly. Thank you for your efforts and also the detailed resolution reports and prevention tips. We would highly recommend you to anyone who require your professional services.

Jerry in Markham Mold Removal in the Attic

“Ross and Moldservices.ca folks, we would like to thank you for the good service and quality provided to us with our mold problem in our attic.You promptly answered our request, and gave us a fair price to fix our issue. We strongly recommend your services”

Atila in Scarborough Attic Mold Removal

Ross is the most honest man in the business. Moldservices.ca was my second opinion and i didn’t feel like was getting ripped off in the process Like the other guys.. I am extremely pleased with the outcome, cleanliness and absolute care and respect he took of my house and my belongings. i don’t like people coming over my house but Ross is welcomed any time. I Highly recommend him and will recommend him to all of my peers. Thanks again for the amazing work

Mickey in Toronto Mold Removal and Remediation

Thank you so much for the fantastic customer service. Removing the mold found in the attic was part of the condition to selling my home and Ross ensured this was done promptly and with great care. His quote was also lower than another competitor. Ross arrived on time and completed the work as promised. He is very knowledgeable, honest and professional. I would highly recommend Moldservices.ca.

Lilia in Toronto Mold Removal in the Attic

Ross from MoldServices.ca was a pleasure to deal with he is honest, knowledgeable and efficient. He cleared the mold in my attic and corrected the insulation to allow for more efficient air flow. His prices are very reasonable for the work required and was flexible with his work hours to accommodate my schedule. I would definitely recommend him to others who require mold remediation services. Thank you for your excellent work!

Alex in Scarborough Attic Mold Removal

Hello Ross, I wanted to thank you for the great service provided. It was great to be able to get a quick appointment. You took the time to answer any questions or concerns that I had regarding causes and prevention of mold. You took care of the problem…and explained the procedure every step of the way. Thank you for the detailed report….it was helpful in providing information such as problem areas…steps taken to resolve the issue…and prevention tips. Great service. I give you an A+ ! I would definitely recommend you!

Daniela in Newmarket Attic Mold Inspection

Ross has been very helpful. He gave me some simple tips to help out with an issue I had in my condo bathroom, and they worked very well. Very knowledgeable and efficient – offers straight-up solutions. Would definitely recommend.

Rob in North York Mold Removal Consultation

After getting burned by another company, Ross at MoldServices.ca came in and had our vermiculite insulation tested for asbestos. He took all the proper safety precautions to protect himself and my family. Thankfully, the asbestos test came back negative. He also thoroughly inspected the house to make sure there wasn’t any mold lingering and he found none. Ross genuinely cares about his customers’ well being and is honest and trustworthy. His pricing is very reasonable and I will definitely recommend MoldServices.ca to anyone who is in need of the services which they provide.

Kristin in Toronto Asbestos Testing & Mold Inspection

Job well done!!! Lowest quote I received from any mold removal company. No need to change attic insulation. Gave some good tips to ensure that mold does not return. Ross came in and within 2 days took care of the mold. Difference in my attic before and after looks incredible. Would definitely recommend.

Tushar in Etobicoke Mold Removal from Attic

Dear Ross, Thank you for the fast, efficient service you provided for us. You went the extra mile to make sure that we will be ready to get back the hot water into our house. You gave me the best quote, too. I will be recommending your services whenever I know somebody is in need. thank you again and and I wish you all the best!

Emese – Toronto Mold Removal

“Having the mould in the attic of my house removed by Ross was surprisingly easy. His quote was clear and very reasonable, and he was very flexible in scheduling the time to accommodate my work schedule. Ross arrived on-time and completed the job exactly as it was discussed upfront. Upon completion, Ross gave me a very clearly written certificate describing what was done. I was very pleased with everything and would gladly recommend Ross as a reliable and knowledgeable contractor”.

Leo L. – North York Mold Removal

“Ross was extremely professional and informative. He explained the issue well and also provided appropriate solutions. I had my house and my parent’s house inspected. Both times Ross was on time, efficient and helpful. Great service. Definitely recommended!

Preet in Mississauga Mold Removal

“Ross , I just wanted to say once again how satisfied we are with both your company’s products and the professional level of service you provided recently at our home. Your prompt and accurate assessment of our mold removal requirements enabled us to save thousands of dollars during the removal and recovery process. The work was done fast and efficiently and I would not hesitate to recommend you to anyone who requires cost effective and superior mold removal. Job well done !!! Thank you,

James R. – Unionville Mold Removal

“Ross visited our home to advise on our mold problem in the closet and walls. He wasextremely knowledgeable, honest and helpful. He explained the situation and how it needed to be handled. He saved us a lot of money and grief through astressful situation. We are impressed with his honesty and his continued support. Thank you Ross for your honesty and professionalism.”

Patricia, Mississauga Mold Removal

“Ross was very professional and knowledgeable. I was given quotes and different variations as to how the mould will be removed in my condo. Ross was honest which saved me lot of grief and money. His work was very clean. I would definitely recommend Ross for his prompt efficient service to my family and friends. Ross, once again thank you for being honest!

Anice Sajan, North York Mold Removal
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