Graham's Pressure Washing: What to Know Before You Hire

Graham's Pressure Washing serves residential and commercial properties across South Carolina

Graham's Pressure Washing is a local South Carolina company that handles exterior cleaning for homes and businesses. They use pressure washing equipment to clean driveways, decks, siding, roofs, and other outdoor surfaces. The company operates in multiple areas of the state, though service availability depends on your location.

Before you contact them or any pressure washing service, it helps to understand what the work involves, what it typically costs, and what questions to ask. This guide walks you through those basics so you can make an informed decision about whether pressure washing is right for your property and how to work with a contractor.

Key Takeaways

• Graham's Pressure Washing handles both residential and commercial cleaning jobs using pressure washing equipment on exterior surfaces.
• Pressure washing can remove dirt, mold, and stains from driveways, decks, and siding, but the cost and timeline vary by job size and surface type.
• Before hiring any pressure washing company, confirm they are insured, ask about their equipment and cleaning methods, and get a written estimate.
• Some surfaces like wood decks or older roofs require lower pressure settings to avoid damage, so discuss your specific surfaces with the contractor.
• South Carolina's humidity and coastal climate create conditions that favor mold and mildew growth, making pressure washing a common maintenance need.

What pressure washing actually does and doesn't do

Pressure washing uses a high-powered stream of water to blast away dirt, algae, mold, and stains from hard surfaces. It works well on concrete driveways, brick or vinyl siding, and some deck surfaces. The water pressure is adjustable—typically ranging from 1,500 to 4,000 PSI (pounds per square inch)—so contractors can match the pressure to the surface being cleaned.

Pressure washing is not a cure-all. It removes surface contamination but does not repair structural damage, fill cracks, or seal surfaces. If your driveway has deep cracks or your deck boards are rotting, pressure washing will clean what is there but will not fix the underlying problem. In South Carolina's humid climate, mold and mildew return relatively quickly after cleaning, especially on shaded surfaces or in areas with poor drainage.

Common surfaces Graham's handles and what to expect

Driveways and walkways are the most common pressure washing jobs. Concrete and asphalt collect dirt, oil stains, and algae over time, and pressure washing can restore their appearance. A typical residential driveway takes a few hours, depending on size and stain severity.

Decks and patios require more care. Wood decks need lower pressure to avoid splintering or gouging the surface, and some contractors use specialized wood-cleaning solutions before pressure washing. Composite decking has its own requirements—too much pressure can damage the material. Pavers and stone surfaces can be cleaned but may need sealing afterward to prevent staining.

Siding and exterior walls vary by material. Vinyl siding cleans well with pressure washing, but aluminum and wood require lower pressure and sometimes softer-wash techniques. Roofs can be pressure washed, but this is specialized work—improper technique can damage shingles or force water under the roofline, causing leaks. If a contractor recommends roof cleaning, ask about their specific method and whether they carry insurance for roof work.

What to ask before you hire

Contact Graham's Pressure Washing directly to confirm they service your area and to describe the surfaces you need cleaned. Ask whether they have experience with your specific materials—wood versus composite, for example—and what pressure settings they use. Request a written estimate that breaks down the work, the surfaces to be cleaned, and the total cost.

Verify that the company carries liability insurance and workers' compensation insurance if they have employees. Ask whether they use any cleaning solutions or sealers and, if so, what products and whether those are included in the estimate. Confirm the timeline—how long the job will take and when they can schedule it.

Ask about their process for protecting landscaping, outdoor furniture, and anything else near the work area. Pressure washing can damage plants and scatter mulch, so a professional contractor should have a plan to minimize that risk. If you have concerns about water runoff or environmental impact, discuss those before work begins.

Pressure washing costs in South Carolina

Pricing varies widely depending on the job size, surface type, and how dirty the surfaces are. A small residential driveway might cost less than a large commercial parking lot. Heavily stained or moldy surfaces take longer and may cost more than lightly soiled ones. Some contractors charge by the square foot, others by the hour, and some quote per job.

Get estimates from more than one company so you can compare. The lowest price is not always the best value—a contractor using inadequate pressure or poor technique may damage your surfaces or do incomplete work. Ask what is included in the estimate and whether there are additional charges if the job takes longer than expected.

Preparing your property for pressure washing

Before the contractor arrives, move vehicles, outdoor furniture, grills, and anything else that could be in the way or damaged by water spray. Close windows and doors, and let the contractor know if there are any fragile plants or decorations you want protected. If you have outdoor electrical outlets or lighting, point those out so the contractor can work around them safely.

Ask the contractor whether you should water your landscaping beforehand or afterward. Some recommend watering plants before pressure washing to protect them from the cleaning solution, if one is used. After the work is done, allow surfaces to dry completely before using them—a wet driveway or deck can be slippery.

Maintaining surfaces after pressure washing

Pressure washing cleans surfaces but does not prevent future dirt and mold from returning. In South Carolina's climate, you may need pressure washing every one to three years, depending on the surface and how much shade and moisture it receives. Surfaces in direct sun typically stay cleaner longer than shaded areas.

Some contractors recommend sealing surfaces after pressure washing to protect them and extend the time before the next cleaning. Concrete sealers, deck stains, and patio sealants are common options. Ask whether sealing is recommended for your specific surfaces and whether the contractor offers that service.

Frequently Asked Questions

How do I know if my deck or siding needs pressure washing?

If you see visible dirt, algae (usually green or black discoloration), or mold, pressure washing can help. Test a small area first—if the stain comes off easily with a brush and water, pressure washing will work. If it does not budge, the surface may need a specialized cleaner or professional assessment before pressure washing.

Can pressure washing damage my driveway or deck?

Yes, if the pressure is too high or the technique is wrong. Concrete can be gouged, wood can splinter, and composite materials can crack. This is why it matters to hire someone experienced with your specific surface type. Ask the contractor what pressure they use and whether they have done similar work before.

Is pressure washing safe to do myself?

Pressure washers are powerful tools that can cause injury if misused. They can strip skin, damage eyes, or cause falls if you lose your footing on a wet surface. Many people rent equipment and do small jobs themselves, but hiring a professional reduces the risk of injury and surface damage, especially for large areas or delicate materials.

How often should I pressure wash my driveway?

In South Carolina, most driveways benefit from pressure washing every one to two years, depending on traffic, shade, and climate. Heavily shaded driveways in humid areas may need it more often because mold and algae grow faster. High-traffic driveways may show dirt sooner but may not need cleaning as frequently if they are in direct sun.

What should I do if I'm not satisfied with the work?

Contact the contractor as soon as possible and describe what you are unhappy with. Most reputable companies will return to address concerns or redo work that did not meet expectations. Get any agreement about follow-up work in writing before the contractor leaves, or document the issue with photos and contact them within a few days.