W & D Pressure Washing: What to Know Before You Hire

W & D Pressure Washing operates in South Carolina as a pressure cleaning contractor

W & D Pressure Washing is a South Carolina-based pressure washing business that handles exterior cleaning for residential and commercial properties. Like other pressure washing contractors in the state, they use high-pressure water systems to clean surfaces like driveways, decks, siding, and roofs. Before you contact them or any pressure washer, you should understand what the service involves, what it costs, and what questions to ask.

Pressure washing can restore the appearance of weathered surfaces, but it also carries real risks—water damage to wood, damage to siding seals, stripped paint, or injury from the equipment itself. Knowing what to expect protects both your property and your wallet.

Key Takeaways

• Pressure washing removes dirt, mold, and algae from exterior surfaces but can damage wood, siding, and paint if done incorrectly or at the wrong pressure level.
• Most pressure washing contractors in South Carolina charge by the job or by square footage, and prices vary widely depending on the surface type and condition.
• Before hiring any contractor, ask about their insurance, experience with your specific surface type, and what pressure levels they use.
• Pressure washing is not the same as soft washing—delicate surfaces like cedar shake or older siding may need lower pressure or chemical cleaning instead.

What pressure washing actually does to different surfaces

Pressure washers force water at high speed to strip away dirt, mold, algae, and loose paint. The pressure is measured in PSI (pounds per square inch). A typical residential pressure washer runs between 2,000 and 4,000 PSI, but commercial equipment can exceed 4,000 PSI. The higher the pressure, the faster the cleaning—and the greater the risk of damage.

Concrete and asphalt can handle high pressure without harm. Wood, composite decking, vinyl siding, and stucco are far more vulnerable. Pressure above 1,500 PSI can gouge wood, strip protective sealant from siding, or force water into gaps where it causes rot. Older homes with original wood siding or cedar shake roofing need especially careful handling. A contractor who uses the same pressure setting on every job is cutting corners and betting your property won't suffer for it.

How to compare pressure washing contractors

When you contact W & D Pressure Washing or any other contractor, ask these specific questions: What PSI do you use on my surface type? Are you insured and bonded? Can you provide references from similar jobs? Do you offer a warranty if damage occurs? How long have you been in business?

Request a written estimate that specifies the surfaces to be cleaned, the method (high pressure, soft wash, or chemical treatment), and the total cost. Avoid contractors who quote over the phone without seeing the property or who pressure you to book immediately. Reputable contractors know their work speaks for itself and are willing to answer detailed questions.

Check whether the contractor is licensed. South Carolina does not require a state license for pressure washing, but some municipalities do. Call your city or county building department to find out what applies where you live. A contractor who knows local rules and follows them is more likely to do the job correctly.

Insurance and liability protection

Pressure washing can cause injury—high-pressure water can cut skin, and contractors work on ladders and roofs where falls happen. It can also damage property: water forced into electrical outlets, under siding, or into foundation cracks. A contractor without liability insurance is betting that nothing goes wrong. If something does, you may be responsible for the damage.

Before any work begins, ask to see proof of general liability insurance. The contractor should carry at least $300,000 in coverage, though $1 million is better. Do not accept a verbal promise or a policy number without verification. Call the insurance company yourself if you need to confirm.

Soft washing as an alternative to high pressure

Soft washing uses lower pressure (usually under 500 PSI) combined with biodegradable cleaning solutions to remove mold, algae, and stains without the risk of surface damage. It takes longer than high-pressure cleaning and costs more, but it is the right choice for delicate surfaces: wood siding, shake roofs, painted surfaces, and older homes.

If a contractor recommends high pressure for a wood deck or cedar siding, ask why. If they cannot explain the risk or offer soft washing as an option, consider calling someone else. The cheapest quote often means the fastest job, not the best one.

What to expect during and after the work

A pressure washing job typically takes a few hours to a full day, depending on the size of the property and the surfaces involved. The contractor should protect nearby plants, cover air conditioning units, and close windows and doors. Water will run off the property—ask where it will drain and whether it might affect neighbors or landscaping.

After the work is done, inspect the results before paying. Look for streaks, missed spots, or damage like gouges in wood or stripped paint. Most contractors will return to fix obvious problems, but it is easier to address them on the spot. If you notice damage days or weeks later, contact the contractor immediately with photos. A contractor with insurance will work with their insurer to cover repairs.

Seasonal timing and weather considerations

Pressure washing works best in mild weather—not during heavy rain, freezing temperatures, or extreme heat. Spring and fall are ideal in South Carolina. Summer heat can make the work uncomfortable and may cause cleaning solutions to dry too quickly. Winter rain can reintroduce mold and algae to freshly cleaned surfaces.

Ask the contractor when they recommend scheduling the work and why. They should explain how weather affects the results and how long the cleaned surfaces will stay clean. A contractor who books you during the worst season is prioritizing their schedule, not your property.

Frequently Asked Questions

How often should I have my driveway or deck pressure washed?

It depends on your climate, shade, and how much moisture the surface gets. In South Carolina's humid climate, mold and algae return faster than in drier regions. Most homeowners pressure wash driveways every one to three years and decks every one to two years. If you notice mold or algae returning quickly, soft washing with a preventive treatment may extend the time between cleanings.

Can pressure washing remove all stains?

No. Pressure washing removes surface dirt and loose material, but deep stains—rust, mineral deposits, or permanent discoloration—often require chemical treatment or may not come out at all. A contractor should be honest about what is removable and what is not before they start. Pushing too hard to remove a permanent stain risks damaging the surface.

Will pressure washing damage my roof?

High-pressure washing can strip granules from asphalt shingles, shorten the roof's life, and force water under the shingles where it causes leaks. Soft washing or chemical treatment is safer for most roofs. If a contractor recommends high-pressure roof cleaning, ask why and whether they carry insurance specifically for roof work. Many roofers and insurers recommend against pressure washing roofs altogether.

What should I do if the contractor damages my property?

Document the damage with photos and written notes about what happened. Contact the contractor immediately and describe the problem. If they have liability insurance, they should file a claim. Get a written estimate for repairs from another contractor and provide it to the first contractor's insurance company. Do not make permanent repairs until the insurance company has reviewed the damage.

Is pressure washing worth the cost?

It depends on what you are cleaning and why. Pressure washing a heavily soiled driveway or deck can restore its appearance and extend its life by removing mold and algae that cause decay. Cleaning siding before painting or staining is often necessary. Routine cleaning of a lightly soiled surface may not be worth the expense. A contractor should help you decide whether the job is worth doing.