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Combining power and soft washing is a great way to ensure that all surfaces, both fragile and not, get the attention they deserve. Start by power or pressure washing durable materials like vinyl siding and concrete pavement or driveways, then switch the tips on your machine and finish up by soft washing the more delicate elements, like shutters and front doors, for example. 

You can certainly utilize a pressure washer to effectively clean your garage floor. If you're dealing with oily residue, consider adding a degreaser to the pressure washer solution. Prior to using the pressure washer, make sure to thoroughly sweep the garage floor to eliminate any loose dirt or debris.

Begin the pressure washing process from the back of your garage, which is closest to your home, and work your way towards the front. This ensures that the water and dirt are directed outside. In case you've applied a cleanser or degreaser, it's a good idea to give the floor another pass with clean water using the pressure washer to ensure a thorough rinse.

When hiring a professional to pressure wash your home, it's crucial to choose a company that is bonded, licensed, and insured. This protects you from liability if any accidents or property damage occur during the service; otherwise, the cost could fall on you. Before making a decision, vet at least three different contractors. Conduct thorough research by reading customer reviews, looking at examples of their previous work, and verifying the company's license. Before signing a contract, ensure you receive a written estimate that details all project costs. It's also wise to ask potential contractors a series of questions to gauge their professionalism and experience, such as:

• How many years of experience do you have?

• What are your credentials?

• What cleaning methods do you use?

• Do you have a workmanship warranty and insurance?

• What is your availability?

• What is your policy if you damage my property?

• How long will the job take to complete?

• How much do you charge?

• What is your cancellation policy?

• Do you offer a customer satisfaction guarantee or any additional services?

A pressure washer’s size or power is measured in pounds per square inch (PSI). The amount of pressure you need will depend on your project and the material you’re washing, but consumer pressure washers range from 500 to 2,400 PSI. Porous materials like brick and stucco should not be blasted with anything stronger than 1,000 PSI, while you can use a PSI of up to 2,400 to clean a vinyl fence.