Maksym KuzaievTaking care of your home means keeping an eye on everything from the foundation to the shingles. If you notice ugly black streaks or moss up top, finding the best roof cleaning services in Ottawa can save you a ton of stress.
Ignoring that buildup doesn’t just look bad. It actually traps moisture and breaks down materials faster. Sometimes you might even need more extensive roofing help if the damage gets too severe.
That’s why we searched for trusted service providers to help you preserve your investment before you end up paying for a costly roof repair. Below are the top local crews who can safely blast away that stubborn grime!
How much does roof cleaning cost in Ottawa?
In Ottawa, professional roof cleaning generally costs between $400 and $900 for a standard single-family home, though specific rates depend on the size of your roof.
| Roof Size / Type | Estimated Cost |
| 1,000 sq. ft. (Small/Simple Roof) | $200 – $500 |
| 1,500 – 2,000 sq. ft. (Average Single-Story/Townhouse) | $350 – $750 |
| 2,500+ sq. ft. (Large/Multi-Story Home) | $750 – $1,200+ |
1. Clear Ottawa Windows
Website:https://clearottawa.com/
Address: 532 Montreal Rd. #415
Contact: 613-686-1739
Hours: January-February: Monday-Saturday, 9:00 AM – 4:00 PM | March-December: Monday-Saturday, 7:00 AM – 8:00 PM
Clear Ottawa uses a low-pressure soft-washing system that safely cleans asphalt shingles, clay tile, and wood. They specifically target biological contaminants like moss and lichen, which ruin exterior surfaces over time.
This team doesn’t farm out the work to subcontractors, so you know exactly who’s showing up.
We appreciate that they do a post-service walkthrough with their clients to ensure everything looks pristine. They also toss in a free onsite inspection to check your gutters before starting.
Just keep in mind that a few clients mentioned their initial service required a follow-up visit to finish the job, especially for complex roof cases.
Customer Reviews
We were very pleased with the end result
We had Clear Ottawa Windows clean the exterior of our home; roof/siding/windows/gutters/soffit. We were very pleased with the end result. Their Staff was knowledgeable & polite. Their care to our property, plants and clean up was above expectations.
After trying a few other ways to get the exterior of our home clean over the past years I highly recommend Clear Ottawa Windows.
You get what you pay for.
- Maureen Smith | Google Review
Showed up on time, were friendly and professional. Job completed quickly
Had Clear Ottawa Windows out to clean my eavestroughs several weeks ago. This was the second time I used them. Big job with a high roof. They showed up on time, were friendly and professional. Job completed quickly. Just had a big storm and gutters worked perfectly with no overflow Can definitely recommend them
- Christina Proud | Google Review
2. The Wash Doctor
Website:https://thewashdoctor.ca/
Address: 478 – 300 Earl Grey Drive
Contact: 343-308-7474
Hours: Monday-Sunday, 8:00 AM – 8:00 PM
Getting an accurate quote usually feels like a hassle, but The Wash Doctor lets you snap a few photos for a fast custom estimate.
They strictly handle asphalt shingle, slate, and tile roofs using treatments approved by the Asphalt Roofing Manufacturers Association. All their soaps and sanitisers are totally eco-friendly and biodegradable, so your garden stays safe during the wash.
Our neighbour used them last spring, and they were really thrilled. They mentioned that the team used a zero-pressure soft-washing approach that removed black algae streaks without stripping any shingle granules.
The only real downside is that their roof cleaning is strictly limited to those three listed materials.
Customer Reviews
The result is absolutely ‘brilliant’
Our bungalow is 25 years old. Daniel cleaned the solar panel, gutters, siding, brickwork, fence, shed and windows. The result is absolutely ‘brilliant’. We are delighted.
Daniel is very professional, diligent and very personable. We highly recommend him.
We are employing The Wash Doctor to clean our windows twice yearly from now on.
With grateful thanks Daniel.
Joy and Nicholas
- Joy Ralph | Google Review
Walked me through the entire process and priced very fairly
Daniel from The Wash Doctor did an amazing job on my house wash in Kanata. Some of the best customer service I ever received, walked me through the entire process and priced very fairly. For sure going to hire them again in the next few years
- André Beaudin | Google Review
3. Wash Dudes
Website:https://washdudes.ca/
Areas Served: Ottawa and surrounding areas
Contact: 613-240-0233
Hours: Monday-Sunday, 7:30 AM – 7:30 PM
Finding a crew that tackles odd materials isn’t always easy, and Wash Dudes steps up by explicitly cleaning six distinct types. That includes cedar shake, metal, and flat/low-slope roofs.
They use a thorough five-step process that starts with a close inspection, then does a low-pressure soft wash to clear out organic buildup. Their process ends with a final inspection.
We love that they absolutely refuse to pressure wash delicate roofing systems. This gives their clients peace of mind. You don’t even need to be home while they work, provided they have safe access to your property.
On top of standard cleaning, they offer preventative treatments designed to slow down the return of moss.
Just make sure you double-check your initial quote, as some specific components might require clear confirmation beforehand.
Customer Reviews
Recommending them for the roof cleaning or window cleaning
On time and a friendly group. Check out my roof for moss and pointed out another area in which there was another problem of moss forming. They also did a wonderful job on our windows on the outside of the house not only cleaning the windows but the whole outside trim around each one. I have no hesitation in recommending them for the roof cleaning or window cleaning.
- Jim McConkey | Google Review
Our house was spotless once they finished!
Sami and his Team (Mateo and Tristan) did an amazing job providing a full clean of the exterior of our home that included the vinyl siding, gutters and windows. We were extremely pleased with the service provided. They were professional, friendly and took great care around our property. Our house was spotless once they finished!! We’ll definitely hire Sami and his Team in future, and would have no hesitation in recommending their services.
- C and B MacK | Google Review
4. Markelangelo’s
Website:https://www.markelangelos.com/
Address: 111 King Arthur St, Cumberland
Contact: 613-833-0001
Hours: Monday-Friday, 8:00 AM – 4:00 PM
If you want a team that truly understands what’s happening under your shingles, Markelangelo’s is a solid bet. They’ve been an established roofing company since 1998, giving them serious expertise beyond just standard cleaning.
Their employees undergo serious safety training, including basic fall arrest for elevated work. They also handle broader repairs, which is super helpful if they spot damage.
Moreover, before spraying anything, the crew carefully covers your plants and outdoor furniture.
We actually spoke directly to a homeowner who hired them, and they loved the gentle, eco-friendly washing process that cleared away tough stains.
Just heads up: the job might take longer than planned, as some cleanups stretched into two days.
Customer Reviews
Knowledgeable and took the time to address any questions
I was very impressed by how quickly my call was responded to and how quickly a team was sent to address my problem of an ice dam and snow accumulation on my roof. Mark was very knowledgeable and took the time to address any questions I had, providing me with information about my issue but also checking and answering questions about my attic insulation. I would not hesitate to recommend Markelangelo’s based on my experience.
- Sue Steeves | Google Review
5. Softwash Butler
Website:https://www.softwashbutler.com/
Address: 215 Terence Matthews Crescent Unit 3, Kanata
Contact: 613-321-4842
Hours: Monday-Friday, 9:00 AM – 5:00 PM
Softwash Butler protects every landscape during a massive clean. They totally stand out by thoroughly wetting surrounding vegetation and applying a neutraliser once the job is done.
They were actually the first all-electric soft-washing company in Ontario, running quiet equipment at a gentle 100 PSI (Pounds per Square Inch).
The team even uses a proprietary biodegradable solution to kill mould and lichen right at the root rather than just wiping away the surface grime.
The main catch is scheduling flexibility, since you basically need to block out a full day for their broad arrival window.
However, with over 15 years of experience in the exterior cleaning game, they know exactly how to handle tricky stains safely.
Customer Reviews
Looks great again
They even cleaned my awning and deck! 🙂 Suggested we clean our roof and we did, looks great again! Gutters were done as well. We had maples growing out of them haha Thanks for coming out to our neck of the woods and working outside on such a HOT day
- Antonietta Villeneuve | Google Review
Very professional and did a great job
I placed a request for a quote on their website. They called my back within 15 minutes with a breakdown of their services and pricing. I was sent a quote via email and later was called to schedule an appointment. The guys were very professional and did a great job. Following their visit I received an invoice perfectly outlining the work. The invoice matched the quote, with no hidden costs or surprises along the way. I would recommend 👍
- Adele Lantos | Google Review
