#1 Exterior Cleaning Company in Charleston, South Carolina

Soft washing is a low pressure cleaning method that uses a specialized solution to remove algae, mold and mildew from siding, roofs and wood. Pressure washing uses force. That difference matters more than it sounds. Force knocks visible growth off the surface, but it leaves the root structure behind, so the green and black staining comes back within months. A soft wash kills the growth at the root, which is why the results hold for a year or more instead of a season. Pressure still has a place, and we use it on concrete driveways, walkways and hardscape where the surface can take it. We never put high pressure on siding, painted wood or a roof. On a Charleston home, where humidity keeps organic growth active most of the year, choosing the right method for each surface is the difference between a clean that lasts and one you repeat every spring.

Yes, and it is the only method we consider safe for one. The black streaks running down a Charleston roof are not dirt. They are gloeocapsa magma, a hardy algae that feeds on the limestone filler in asphalt shingles. Because it is living growth rather than surface grime, rinsing it off does nothing. It has to be killed at the root or it returns. A soft wash does that without touching the shingle itself. High pressure is the real danger here. It strips the protective granules off the shingle surface, and those granules are what shield the asphalt underneath from sun damage. Once they are gone the roof ages faster and you lose years off its life to save one afternoon of cleaning. A properly soft washed roof comes out clean, keeps its granules, and stays clear noticeably longer than a pressure washed one.

House washes start at $350, and most full exterior details run between $800 and $3,500 depending on the size and condition of the home. The range is wide because the work is not the same on every house. A two story home with heavy north side growth takes considerably longer than a single story that was cleaned last year, and roof, driveway and deck work each add to the total. If you just want a rough idea, the price range tool on this site gives you a ballpark in about sixty seconds from your address and a few details. It is a real range rather than a placeholder, and it is there so you can plan around it. Your exact quote comes after a short visit or three photos, and it does not change afterward.

Yes. TrueWash carries $2 million in general liability insurance. We send the certificate of insurance to anyone who asks, before the work starts, without you having to push for it. This matters more in exterior cleaning than most homeowners realize. The work involves ladders, elevated surfaces and chemical solutions applied to a home you live in, and an uninsured contractor who damages siding, kills landscaping or gets injured on your property leaves you holding that cost. Plenty of operators in this market work out of a truck with no coverage at all and compete purely on price. If you are comparing quotes, ask every company for their certificate and compare the coverage amount, not just the number at the bottom of the estimate. We would rather you check ours than take our word for it.

You tell us, and we come back and make it right at no additional cost. That is the guarantee on every job we do, and it carries no expiration window. Some companies give you twenty four or forty eight hours to report a problem, which is not a real guarantee. It is a deadline designed to run out before you have seen the house in different light or had a chance to walk the whole property. Exterior cleaning results are not always obvious the same day. A missed section on a north facing wall or a spot of remaining growth on a shaded eave can be easy to spot a week later and invisible at the time. So take your time, look it over properly, and if something is not right, call us at (843) 874-5500. Coming back to finish the job is part of the job.