Power Wash Roof Cost: Factors That Influence the Price
Power washing is a great way to keep the exterior of your home clean, but it can also be used for other purposes such as cleaning the roof. Power wash roof cost should not be too much – these are five factors that influence the price!
- Surface Requirements
The surface or paint may require thinning for increased penetration and flow of water (for soft surfaces such as brick, concrete, stucco, etc.) Some detergents can be mixed with water to help with dissolving oils and grease which might have built up over time. If needed, additives can be used for suspending solids that may have accumulated on the roof.
- Location of Work
The further away you are from service providers, the more expensive your power washing will cost. This is because they charge per mile for travel time and labor costs to get to your location. If you live in a city or suburb, there are likely to be more companies in your area so the prices are competitive. The price will go down if you live outside of a city where there is less competition for this service.
- Size of Roof
If you have a larger roof or multiple roofs, it will cost more money to power wash because there are increased labor costs due to the amount of time it takes to complete the job. If you have a smaller roof or gable, one service provider can power wash that in an hour or less which will cost less money.
- Additional Costs
If you are concerned about moss being blown off your roof by the power washing process, there may be additional costs for applying protective coatings after the power washing is complete. Moss can damage your roof’s shingles causing them to break or discolor, so it is best to prevent this from happening in the first place!
- Roof Angle
The higher the pitch of the roof, the more time it will take to finish. If you have a steeper pitched roof it will take longer for the service provider to complete, increasing your cost.

Different Types of Roofs and Their Cost to Power Wash:
There are many types of roofs,each with its own unique features that require different methods of power washing. Here are three common roofs and their associated cost to power wash!
- Asphalt Shingles
Asphalt shingles are the most common type of roof in North America and they typically last for 20-30 years. The cost to power wash an asphalt shingle roof is around $100-$20. Service provider needs to be able to get on the roof safely, which can be a challenge depending on the pitch and size of the roof.
- Tile Roofs
Tile roofs are often made from materials such as clay, concrete, or cement. They are often much sturdier than other types of roofs because they are thicker and not properly cared for could be very expensive to replace. The cost to power wash a tile roof is around $200-$400 depending on the size which also includes fixing broken tiles in the process.
- Slate(stone) Roofs
Slate roofs are very popular in certain parts of the United States. They also come in a variety of different colors and finishes . The cost to power wash a slate roof can be $400-$800 because these types of roofs tend to hold debris such as moss and dirt much easier than other types. This is not due to any particular material of the roof but rather due to its structure.