TL;DR
Cleaning a cedar shake roof in Ontario, Canada generally ranges from $600 to $3,500 for a 1,000 sq. ft. roof, depending on several factors. The final price is influenced by whether it’s a routine maintenance cleaning or an initial deep clean, along with the level of accessibility, type of treatment required, and the extent of organic buildup like moss, algae, and lichen. Soft washing is the safest and most recommended method, as it gently removes debris without damaging the wood — unlike pressure washing, which is typically discouraged. To maximize the lifespan and natural beauty of your cedar roof, maintenance every 3 to 5 years is essential.
Call The Cedar Cleaners at 647-694-0523 for a FREE estimate in Toronto, Hamilton, Mississauga, Oakville, Burlington, and North York.
How Much Does It Cost to Clean a Cedar Shake Roof?
When it comes to protecting the beauty and structural integrity of your home, your roof takes center stage. Cedar shake roofs, while visually stunning and impressively durable, require specialized care to maintain their charm and functionality. If you live in the Greater Toronto and Hamilton Area (GTHA), you might be wondering: how much does it actually cost to clean a cedar shake roof in Ontario?
Let’s break it down.
On average, cleaning a cedar shake roof costs between $0.60 and $3.50 per square foot. This means for a typical 1,000 sq. ft. roof, the total investment ranges from $600 to $3,500, depending on a few critical factors.
What Influences the Cost?
- Roof Size: Naturally, more square footage means a higher cost.
- Roof Pitch & Access: Steep or multi-level roofs are harder to clean and require more labor and equipment.
- Condition of the Roof: Roofs covered in moss, algae, or heavy debris need more attention.
- Cleaning Method: Soft washing (recommended) versus high-pressure washing (discouraged).
- Additional Services: Some cleanings include optional oil treatments or wood preservatives that add to the final bill.
In Toronto, Oakville, Mississauga, Hamilton, Burlington, and North York, local weather patterns and labor costs also play a role. Harsh winters, spring rains, and humid summers accelerate organic buildup, making routine maintenance especially important in southern Ontario.
How Much Does It Cost to Clean a Cedar Roof?
Although people often use “cedar roof” and “cedar shake roof” interchangeably, the cleaning rates stay relatively the same. Across Ontario, homeowners should expect to pay $0.60 to $3.50 per square foot.
To put this into perspective:
| Roof Size (sq. ft.) | Estimated Cleaning Cost |
|---|---|
| 1,000 sq. ft. | $600 – $3,500 |
| 1,500 sq. ft. | $900 – $5,250 |
| 2,000 sq. ft. | $1,200 – $7,000 |
Not all cleanings are created equal. A quick surface rinse may cost less upfront, but it won’t eliminate deep-set mildew or lichen growth. At The Cedar Cleaners, we specialize in tailored, long-lasting solutions that protect your investment.
📞 Call 647-694-0523 for a FREE, no-obligation quote anywhere in the GTHA.
How Much Does Roof Cleaning Cost in Canada?
Across Canada, roof cleaning costs vary by material:
| Roof Type | Average Cost (Canada) |
|---|---|
| Asphalt Shingle | $400 – $900 |
| Metal Roof | $500 – $900 |
| Cedar Shake | $600 – $3,500 |
| Tile Roof | $800 – $4,000 |
Local Estimates in the GTHA:
- Toronto: $600 – $1,300
- Mississauga: $550 – $1,100
- Hamilton: $500 – $950
- Burlington & Oakville: $650 – $1,250
- North York: $600 – $1,200
Remember: cleaning is an investment, not a cost. Keeping your cedar roof clean can help you avoid the much higher cost of premature replacement.
How Often Should a Cedar Shake Roof Be Treated?
A cedar shake roof should be cleaned and treated every 3 to 5 years, depending on climate and exposure to moisture. Skipping treatments could lead to accelerated deterioration, rot, and costly repairs.
Treatment Usually Includes:
- Soft washing to gently remove moss and mildew
- Wood preservative or cedar oil application
- Repair or replacement of damaged shakes
Think of this like a health checkup for your roof—preventative care keeps it looking and functioning its best for decades.
Is Soft Washing a Roof Worth It?
Without question, soft washing is worth every penny when it comes to cleaning cedar shake roofs.
Unlike pressure washing, which can strip wood fibers, force water into gaps, and cause long-term damage, soft washing:
- Uses low-pressure water combined with eco-friendly detergents
- Kills moss, algae, mold, and lichen at the root
- Preserves the natural wood texture and color
- Reduces the likelihood of leaks or rot
Homeowners in Oakville, Burlington, and North York trust soft washing as the safest, most effective way to rejuvenate their cedar roofs—without risking structural damage.
Can You Pressure Wash a Cedar Shake Roof?
Yes, pressure washing can be done on a cedar shake roof — but only with extreme care and the right technique.
Traditional high-pressure washing is strongly discouraged, as it can:
- Strip away protective wood fibers
- Split or loosen shakes
- Force water beneath the roofing, leading to rot
- Void roof labour warranties
However, a controlled pressure rinse using the right tools and settings can be part of a safe and effective initial cleaning process.
Best Practices for Pressure Rinsing Cedar:
- Use low pressure with high water volume (GPM)
– Instead of blasting with power, increase the gallons per minute to gently rinse debris without damaging the wood. - Set pressure to low PSI, ideally under 1,000 PSI
– This helps avoid gouging or lifting the shakes. - Use a 40°–60° fan tip, never a pinpoint or turbo nozzle
– A wide spray distributes water safely and minimizes force. - Avoid direct angles and maintain distance
– Spray downward in the direction of the shakes to prevent water infiltration. - Always follow with soft washing
– The rinse helps loosen heavy buildup, but soft washing removes deep-rooted growth like moss and algae.
At The Cedar Cleaners, we understand the balance required. Our technicians are trained to use gentle rinsing combined with low-pressure soft wash solutions, ensuring your roof is both clean and unharmed.
In short: pressure washing is possible, but only when done responsibly — as a rinse, not a blast.
Is Roof Cleaning Worth It?
Yes, and here’s why:
- Extends your roof’s life by 10–15 years
- Prevents thousands in repair or replacement costs
- Boosts curb appeal and home value
- Eliminates mold, allergens, and airborne contaminants
- Keeps your home insurance coverage in good standing
Neglect can cost you big. Cedar roofs aren’t cheap to replace — some exceed $15,000-$27,000 per 1000 sq.ft. A few hundred dollars today can save you five figures tomorrow.
Get a Free Estimate Today – The Cedar Cleaners
Whether you’re in Toronto, Mississauga, Oakville, Burlington, Hamilton, or North York, we’re ready to restore the beauty of your cedar shake roof with expert care and attention.
📞 Call 647-694-0523 or visit our website to schedule your FREE roof inspection and cleaning estimate. No hassle, no pressure — just honest local service.
FAQs
How long does it take to clean a cedar shake roof?
Typically between few hours to few days depending on size, pitch, and condition.
What’s the best time of year for cedar roof cleaning?
Spring through early summer. Avoid freezing winters or damp fall months.
Are the cleaning chemicals safe for pets and gardens?
Yes! We use biodegradable, plant- and pet-safe formulas.
Does cleaning void my cedar roof warranty?
Not with soft washing. In fact, regular cleaning may be required for warranty compliance.
Can I walk on the cedar roof myself?
It’s not advised. Cedar is delicate and requires trained technicians using walk pads and harnesses.
Do I need to be home during cleaning?
It’s optional. Our team will communicate throughout and respect your property.
Final thoughts
Cedar shake roofs bring unmatched natural beauty and insulation to your home—but they also require specialized care. If you’re in the GTHA and wondering how much it costs to clean a cedar shake roof, the short answer is: between $0.60 and $3.50 per square foot, depending on condition and services.
The long answer? Proper maintenance every few years isn’t just smart — it’s necessary.
📞 Call The Cedar Cleaners today at 647-694-0523 to protect your investment and keep your roof in pristine shape. We proudly serve Toronto, Hamilton, Mississauga, Oakville, Burlington, and North York.
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