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ToggleLocal homeowners typically pay between $200 and $1,200 for roof cleaning, with the average cost being around $455. In this post, Castle Window Cleaning and Power Washing, your trusted local experts, explain more about the roof cleaning cost in Fairfield County, CT, so that you can budget accordingly.
Average Roof Cleaning Costs in Fairfield County, CT
For residential roof maintenance pricing, you’re looking at between $0.15-$0.30 per square foot in general. Some professional roof cleaning estimates quote flat rates ranging from $255 to $449. If you have premium roofing types in areas like Darien or Westport, you may pay more.
We price our soft wash roof cleaning service fairly, based on the conditions we find. The thicker the layer of grime, the higher the cost. This is why it makes sense to schedule moss and algae removal from roofs every one to two years.
We provide you with a fully accurate upfront quote, which we can base on aerial photos for your convenience.
What Affects Roof Cleaning Prices in Fairfield County?
Roof cleaning prices vary from property to property based on several factors. So, what do our experts consider when preparing your quote?
Cleaning Method (Soft Wash vs. Pressure vs. Chemical)
We use eco-friendly roof cleaning methods without any bleach that are gentle enough for cedar roofs. This not only removes any organic growth but also kills any spores, leaving long-lasting results.
| Cleaning Method | Suitable Roof Material | Average Cost Range |
| Soft Washing | Asphalt Shingles, Cedar | $250 – $500 |
| Pressure Washing | Metal Roofs | $350 – $700 |
| Chemical Treatment | Slate, Tile | $400 – $900 |
Cedar Guards by Castle Window Cleaning and Power Washing uses a unique low-pressure alkaline wood cleaning and pH-neutralizing system for cedar roofs. We then follow up with an oil-based sealing for long-lasting protection. Want to learn more about maintaining these beautiful surfaces? Read The Ultimate Guide to Cedar Roof Cleaning and Maintenance.
Roof Size
This is probably the most significant factor in determining your roof cleaning cost in Fairfield County, CT. That said, a large warehouse roof might be simpler to clean than a gabled one with many angles and windows.
| Roof Size (Sq. Ft.) | Average Cleaning Cost |
| 1,000–1,500 sq. ft. | $200 – $400 |
| 1,500–2,000 sq. ft. | $300 – $550 |
| 2,000–2,500 sq. ft. | $400 – $700 |
| 2,500+ sq. ft. | $600+ |
Larger homes in New Canaan and Greenwich typically need higher-end service levels. We also need to consider the slope of the roof, as this affects the safety measures we must take.
Roof Condition
Algae, mildew, and moss buildup require specialized treatment, which can add to the cost. If there’s a thick mat on your roof, it may take more than one pass to clear.
You need to be especially careful with cedar roofing because it’s vulnerable to moisture and mildew if you neglect it.
Number of Stories
If you have more than one story, we will need to take extra safety gear and possibly additional crew members. It takes a little more to set things up, which is what adds to the cost.
Roof Type and Material
We offer non-walk, aerial roof care, which protects even the most delicate materials. That said, we do change our approach based on the type of roofing. We never use pressure cleaning techniques on any of these surfaces, but we do adjust our cleaning formulations and techniques when it comes to cedar, slate, and tiles.
Labor Costs in Fairfield County
You’ll pay 10-25% more for labor in the more affluent zip codes. Our team mitigates this with bundled service discounts and great seasonal promotions.
Additional Services (Add-Ons)
Any additional services you choose will add to the overall cost. That said, it’s worth bundling different options together because you then save on call-out fees. It also helps keep your property looking amazing. For example, you could bundle roof cleaning, house washing, and window cleaning to save time and money.
Our customers typically add our moss guard, gutter cleaning, and cedar sealing (which lasts up to seven years) to the basic package.
DIY Roof Cleaning vs. Hiring a Professional
Doing basic home maintenance yourself can often save you money. That’s a no-brainer when it comes to simple tasks like fixing a leaky pipe or tightening a screw, but some tasks are better left to the professionals.
The DIY roof cleaning cost in Fairfield County, CT, is around $150-$300, but you need to consider the risks first. For starters, you’ll be balancing on a ladder or your roof and using soapy water. One wrong step could send you over the side, leading to an expensive emergency room visit and avoidable injuries.
Even if you’re very careful, you could also cause irreparable damage. If you use the wrong pressure setting, you’ll peel away the dirt, but you’ll also strip the asphalt off your shingles, crack tiles and slate, or scour Cedar. This could lead to expensive replacements.
Getting professional results is difficult for someone without experience. You may end up using more chemicals than necessary, which can put your garden at risk. Finally, to add insult to injury, attempting DIY roof cleaning can void your roof’s warranty. Read the fine print and check.
Castle Window Cleaning and Power Washing uses eco-safe products that are bleach-free and employs the safest techniques.
Is Roof Cleaning Worth the Investment?
Yes, roof cleaning is worth the investment because it:
- Extends the roof’s lifespan by removing contaminants that eat into the surface.
- Avoids costly damage by keeping the surface clear. You’ll pay less for general maintenance and need fewer repairs in the long run.
- Improves curb appeal and reassures potential buyers that you’ve been good with maintenance. Buyers see algae, moss, and mold as red flags.
- Helps your cedar roof last up to 60% longer. Our sealing services protect against erosion, mildew, and cracking.
- Gets rid of harmful contaminants and allergens that can make your family ill. Pollen, pollutants, and mold spores settle on the surface and will blow in through your windows.
How to Choose the Right Roof Cleaning Company in Fairfield County
The results you achieve depend on the quality of the company you hire, so it’s important to do your research. Here are some non-negotiables:
- Expertise in cedar roof cleaning in Fairfield County.
- Up-to-date insurance and licensing and the ability to provide proof of it. Reputable companies take every possible step to protect both themselves and their customers, and they’re able to prove this to you.
- Using eco-friendly products is no longer a nice to have. You don’t want toxic chemicals near your family. Our team complies with EPA and Fairfield County environmental regulations.
- Good reviews on third-party sites like Google and BBB. It’s normal to have one or two disgruntled customers, but if they outnumber the happy ones, it’s a warning sign. Additionally, consider how the company handles reviews in general. If they’re responsive to both types, it’s a great sign.
- A proven track record in dealing with roofs like yours. Check the gallery on the website to learn what to expect.
Castle Window Cleaning and Power Washing offers all of this and more. Ben Meyerson says that we did a great job and that he’s planning to use us every year. Feel free to browse the other testimonials from our clients to learn what you can expect.
How Castle Window Cleaning and Power Washing Provides Roof Cleaning Estimates
We believe in treating you fairly, which is why we carefully evaluate your roofing. Our team begins by obtaining measurements from Google Earth and inspecting the roof’s condition. If you have a cedar or slate roof, we’ll visit your property to evaluate it in person.
We then give you a transparent, itemized quote that you can take to the bank. We don’t start with a low figure and pad the bill later; what you see is what you’ll pay.
We make it as easy as possible for you to get your estimate. Call our professional team today for your free estimate!
Get a Fast Roof Cleaning Estimate Today!
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Restore Your Roof Today
Cleaning your roofing provides more than an aesthetic boost; it helps you get the best value for your investment. It also gets rid of mold and mildew that could be harmful to your family.
Every second counts. Contact Castle Window Cleaning and Power Washing at 203-428-7019 for a personalized quote on your roof cleaning cost in Fairfield County, CT.


