How Much Does It Cost to Hire Professionals to Clean a Roof?

Now that you understand exactly what roof cleaning entails, you may be ready to call in the reinforcements. Or, you may want to hire a professional to clean your roof if you are worried about using chemicals improperly and potentially damaging roofing materials.

The Cost of Roof Cleaning Depends On:

How much you pay for roof cleaning will depend on the following factors:

  • Location
  • Job complexity
  • Other related factors.

Roof Cleaning Cost

Roof cleaning is most often priced from $0.15-$0.30 per square foot, or $15-$30 per square. For a roof of an average size of 1,500 ft.², this could cost you from $250-$500. For a larger 2,500 ft.² roof, it may cost from $375-$750.

The average cost of roof cleaning can range anywhere from $250-$1,200.

Angie’s List estimates that roof cleaning could cost from $350-$1200. Price will increase significantly for a roof of a larger size, irregular shape, or steeper pitch. Roofs with algae or mold infestations may also be subject to additional cleaning charges.

Cutting Down on Roof Cleaning Costs

Algae-Resistant Roof Shingles

One way to cut down on excessive roof cleaning is to install algae-resistant roofing shingles beforehand. If you live in a humid area of the country, this upgrade may be well worth the investment. Keep in mind that algae-resistant shingles will cost up to 20% more than standard asphalt shingles.

Zinc Strip Installation

Last but not least, you will also need to prevent algae and mold growth in the future with zinc strip installation. A 50 foot roll of zinc strips will cost up to $50, not taking into account the extra cost of installation.

Hiring a Professional vs. DIY Roof Cleaning

Although close to $1000 may seem like a lot to spend on total roof cleaning, it could be worth your while if you don’t have the necessary supplies, skills, or time to do it yourself. For example, if you need to buy a new ladder, garden sprayer, safety harness, and work gloves, it can be in your best interest to price local roof cleaning companies instead of taking on a DIY job.

Learn more about the tools and equipment needed to clean a roof.

How to Hire the Right Roof Cleaning Company

If you want to hire the right roof cleaner, keep the following guidelines in mind:

Consider their cleaning process.

As we already covered in detail in this chapter, a roof cleaning company should not recommend power washing as it could strip and void the warranty of existing roofing materials.

Find out about insurance.

Working on a roof for any purpose is a dangerous task, roof cleaning included. A roof cleaning company should be able to provide further information about their worker’s compensation and insurance policy before stepping foot on your roof.

Get price quotes.

It helps to get a minimum of three price quotes from local roofing companies before making a final decision. Price will be based on a number of factors and could vary greatly from one cleaning company to the next.

Request warranty information.

It’s best to work with a roof cleaning company that provides a warranty or guarantee, if at all possible. Find out what action a company will take if mold or algae returns in a short amount of time.

Check references.

As a final precaution, it always helps to check past client references and ask for a portfolio of cleaning work with before and after pictures. Working with a roof cleaning company with many happy clients will help you to protect the value of your investment.


Roof Cleaning Services in the Tri-State Area

A & J Reliable offers professional roof cleaning services in the tri-state area, including New York, New Jersey, and Connecticut. With over 35 years of experience in roof maintenance and care, we’ve seen the advantages and disadvantages to just about every cleaning product on the market. We know the proper methods to use, products to avoid, and elements to look out for on your roofing system before they cause serious damage. 

Learn more about our roof cleaning service.