Kill roof moss before it kills your roof.
Before Treatment
After Treatment
THOMSON ROOF TREATMENT, YOUR VICTORIA DEMOSSING SPECIALISTS
We specialize in roof moss removal to help preserve the life of your home.
Our experience is your advantage
Top Rated Service 2026
4.9
4.9verified by TrustindexTrustindex verifies that the company has a review score above 4.5, based on reviews collected on Google over the past 12 months, qualifying it to receive the Top Rated Certificate.Posted on Google
Jayne James2 September 2026Would definitely recommend this company.. we have used them before and will be using them again… so reliable and my roof and gutters look fabulous.. the men that came I recognized from the past visit and they are so wonderful .. really made sure everything was clean and done right ..Posted on Google
Kurt Sorenson30 August 2026Great service. Reliable, honest, and efficient. Final price was less than originally quoted.Posted on Google
Anne Patton24 August 2026A week after we accepted their quote, workers arrived to clean off the moss. I was happily surprised by how quickly we received service. Two different crews came to clean off the moss by hand and then to wash and apply the moss deterrent. All five young men were professional, competent and polite.Posted on Google
James Fleet11 August 2026They were friendly, quick and efficient.Posted on Google
Joanne P7 August 2026I just had my third roof treatment from Thomson's yesterday and I am extremely impressed with their service. I am amazed at how little moss build up I've had in the two years since my last service so this treatment really works. The employees who attended yesterday were very courteous and did a really nice job and the office staff were very pleasant. I intend to continue with Thomson's for many years to come.Posted on Google
HariKrishan Sharma2 August 2026Trustindex verifies that the original source of the review is Google.
Very very slow in scheduling the Jon. Reminded few time and got it scheduled.Posted on Google
Sheryl Beland1 August 2026Thompson Roof Treatment did an excellent job on our roof. We highly recommend them.Posted on Google
Janet Adam27 July 2026Did a great job of removing the moss and cleaning up afterwards. There was some delay in the dates that could have been communicated a little better, but overall good servicePosted on Google
Mark Bateman20 July 2026Excellent service. Friendly, cooperative workers. Oh, and our roof is moss free!Posted on Google
Paul Sahota7 July 2026Great job. Roof looks awesomePosted on Google
Simon Upshon5 July 2026Thompson Roof Treatment team did a great job of cleaning our roof and our gutters. they also cleaned the skylights and chimney exterior. They were also great with our dogs. I would highly recommend them.Posted on Google
Margaret Neilson29 June 2026Excellent service, very polite workersPosted on Google
Steen Jessen26 June 2026Have used this service for over 10 years now. The company is reliable and professional and our roof has been clear of moss the whole time. Highly recommend Thomson Roof Treatment.Posted on Google
Paul Olson26 June 2026Excellent and very friendly service. The site was left cleaner than before they arrived. Highly recommend their services.Posted on Google
Cindy Rodgers26 June 2026The Thomson Roof team were amazing. The attention to detail was great, and they left our place looking great. They were so pleasant and courteous as well. I could highly recommend themPosted on Google
Diana Abbott16 June 2026Lawrence and Ethan did a spectacular job on the roof and surrounds! Thank you so very much!!Posted on Google
Linda-Beth Juchli15 June 2026This is company is busy! Why? Great service, great price. Definitely will rebook them.Posted on Google
Randy Stagg14 June 2026Not only doesThompson Roof Treatment do a good job protecting my roof this time around they showed me a picture of my chimney showing it needed to be replaced. Which I am getting done before it falls down. If they had not sprayed my roof and shown interest in telling me about my chimney I would never had known it was falling apart.Posted on Google
John Dennison12 June 2026This is a highly professional company that delivers excellent results while accommodating the customers needs. They are highly recommended.Posted on Google
Darcy Baillie1 June 2026Thompson Roof Treatment did a great job of cleaning our roof and our gutters. The guys were friendly and efficient and I would highly recommend them.Posted on Google
Bruce Stuart27 May 2026The guys that came to both remove the moss and to spray the treatment were very professional and personable. They cleaned the moss perfectly and the yard was left in perfect condition.Posted on Google
Martin Lechowicz26 May 2026Great team from start to finish using a labor intensive removal followed by proprietary wash down. Very respectful avoiding spray drift on gardens, and thorough cleanup of debris. Chose after AI review of 7 local vendors, no regrets and good value at an affordable charge.Posted on Google
Jim McKissock16 May 2026Efficient and great cleanup-staff very nice to deal withPosted on Google
Randy Jones5 May 2026Excellent service. They came out and gave a quote on the same day of my request. The work crew was very friendly and efficient. They did in one day what used to take me most of a week, using a 3" paint scraper. I should have called years ago.Posted on Google
Pat Hynes30 April 2026Very happy with Thomson Roof Treatment. The moss was removed by hand (no pressure washing), and the treatment applied. The job took 4 hours. The technicians were very good, worked hard, respectful of our home, did a very good job of cleaning up.Posted on Google
Jeff Tonkin21 April 2026All the moss removed and yard was left neat & tidy. Well done.Posted on Google
Alison Kissack8 April 2026We recently had our roof treated by Thomson Roof, and we couldn’t be happier with the results. It had been years since our last treatment, so it was definitely overdue! Now our roof looks as good as new! The team applied a treatment designed to prevent moss from regrowing, which gives us real peace of mind. We also really appreciate their proactive approach, they’ll be back in a couple of years to reapply the treatment before any moss has a chance to return! Professional, effective, and forward-thinking service. We would highly recommend!Posted on Google
caroline b27 March 2026Today we had our two year maintenance re-treatment to stop moss from coming back. Amazingly there was virtually no moss growth in the past two years which really shows how effective their treatment is! They also cleaned the gutters and washed the sky lights as part of the maintenance plan. Their employees were courteous, super friendly and eager to answer all my questions. They were also highly attentive to the hummingbird nest that was just 30 cm from the roof gutter, protecting the chicks from any overspray, removing and replacing the hummingbird feeders as they moved from one end of the roof line to the other, and they disconnected the 300 gallon rainwater totes from the gutters before application so as not to contaminate the rainwater veggie garden supply .I highly recommend them to anyone who wants their roof to look fabulous as tho it is brand new. If you want a carefree roof, give them a call!Posted on Google
Wendy Zimmerman12 March 2026Super easy to set up and to make arrangements to have the work done. The workers were informative and pleasant and the whole process went very smoothly. Highly recommend.Posted on Google
David Brown1 March 2026Work was done in a professional manner. The crew were polite & hard working. Roof (week later) looks as close to new as it will ever get. Thank you to Thomson Roof Treatment for making my roof the best looking on the block.Posted on Google
Cheryl23 February 2026Thomson Roof Treatment Moss Removal was excellent from beginning to end. They were very efficient, didn’t waste anytime! Quality clean up was appreciated and didn’t go unnoticed. Thank you for the great service.Posted on Google
laRooster23 February 2026Great caring crew that always does a great job - very professional.Posted on Google
hazell penn13 February 2026I suppose the proof of the pudding is that the moss doesn't pop right back but must say the whole procedure was very organised and efficent. The following day the truck pulle dup and liquid moss deterrent was applied. Everything was left back to normal ...al gutter clean and no debris around at all! Really good experience and paying wwith my credit card didn't incur an added amount ...altogether 5 stars!!Posted on Google
Ellen Foulkes9 February 2026We have used the services of Thomson Roof Treatment for many years. This time, as previously, they did a great job. They cleaned the roof and gutters and cleaned up all the debris before applying the treatment solution. Excellent communication. Excellent job!Posted on Google
David Lennam6 February 2026Have used Thomson for two roofs. Double satisfaction.Posted on Google
Kate Cullen29 January 2026I use Thomson to keep the roof clear and clean of moss. I live right across from the forest so it needs regular treatment. I wouldn't use anyone else. They Communicate well and are clear of what you need to do in preparation and expected time of being available. Their work is very professional. The gentlemen who do the work each time are kind and informative as to how the roof looks and it's condition. They also clear the gutters. They clean up the area after the work is done, leaving it cleaner than they found it. I have No complaints about Thomson. Thank you for your hard work and excellent service.Posted on Google
Agnes Li27 January 2026Your team did a wonderful job. Thank you!Posted on Google
Garry Groth10 January 2026I was speaking to a gentleman named Anthony. When it comes to a level of service he absolutely knows how to give that. I was not even looking for any services but after conversation with him I will absolutely sign up for anti moss removal. He definitely goes above and beyond for his clients and it shows. Thank you Anthony for the conversation thus far I will be in contact very soon.Posted on Google
Jean DeBernardi7 December 2025They did an excellent job cleaning moss from our roof two years ago and returned to treat it again and clear the gutters. Highly recommended.Posted on Google
Alan Meakes18 November 2025Repeat customer for many years. Has kept roof like new. Crew were outstanding - cleaning entire yard around house making it both pet-safe and leaf/needle cleared around house. Will continue to use them every two years.Posted on Google
susan mickelson9 November 2025We just had Thomson Roof Treatment in to clean and treat our roof. Your staff exceeded my expectations in the thoroughness of the cleaning they did and I am very appreciative. Along with the communication and prompt scheduling we won't hesitate to use your company again and recommend you.Posted on Google
Brenda Palmer-Stone3 November 2025Excellent service!Posted on Google
Terry Morphy31 October 2025Job well done and quick. Cleaned up great afterwards as well.Posted on Google
Glenn Migneault29 October 2025Team arrived and removed moss, in timely fashion, another crew arrived few days later and sprayed the treatment, crews cleaned up any mess, very satisfied with job done.Posted on Google
Jennifer Roach28 October 2025Professional, pleasant and efficient. My roof thanks you.Posted on Google
Julie Anderson27 October 2025Very happy with the job done by Thomson Roof Treatment. The first crew arrived bright and early to clean the moss/debris off my roof - they did a great job and cleaned off my back deck and blew the debris of my garden as well! The second crew arrived a couple days later to apply the treatment to the roof. They were all very polite, respectful and did a great job - thank you!Posted on Google
Lesley Murphy26 October 2025Appreciated the kind speedy service. They accommodated me in a time situation with the sake of my house. They kept me updated on arrival times and if that changed etc. very professional and a job well done. Many thanksPosted on Google
Shelby Lowery17 October 2025Amazing work from start to finish! I didn't want to hire someone because they were the cheapest.......I did that last time and ended up with a $20,000.00 bill for a new roof. I've never seen so many leaks in my life! This time we thought we'd go with a business that's been around for a while. All I can say is you get what you pay for. Fantastic job, and they cleaned up so well you can't even tell they were here! I will not go anywhere else ever again! I highly recommend ThomsonPosted on Google
Graeme Graeme15 October 2025Super friendly team and a professional well done job. We are very satisfied with the work and will continue to use Thomson for our roof maintenance. We would recommend this company to our neighbours.Posted on Google
Brian MacLean5 October 2025Easy estimate process, fairly short wait time and the final product looks amazing. Crew cleaned up after and the whole process including final payment was seamless. See you guys in a couple of years.
Have used this service for over 10 years now. The company is reliable and professional and our roof has been clear of moss the whole time. Highly recommend Thomson Roof Treatment.
STEEN JESSEN
July 2023
Today was our 2 years maintenance program treatment. Fantastic Service--Roof looks like new! Service included moss treatment, gutter, and surrounding ground surface cleanup; the guys did a Great Job! I Definitely recommend the 2 year maintenance program.
DIANE SHADE
April 2023
Thomson Roof Treatment Staff were professional and took every precaution to ensure I knew the process and timing. The work was done well! Friendly and efficient technicians have been diligent in call-back and ensuring prompt follow up. Highly recommend their service!
JOAN KIERNAN
November 2022
Today, we had our two year maintenance treatment ...amazingly there was virtually no moss growth in the past two years which really shows how effective their treatment is! They also cleaned the gutters and washed the skylights as part of the maintenance plan. Their employees were courteous, super friendly, and eager to answer all my questions.
CAROLINE B.
September 2022
Thomson did a fantastic job removing the moss from our roof. Our roof looks great! The clean-up was great. They did the work quickly and thoroughly. I chose Thomson Roof Treatment Moss Removal company because of the reviews I read. I'm so glad I did. On a scale of 0-10 you did a 10+ star job! Thank you for providing us with such excellent service!
MARTY LAYNE
September 2021
