TrueWash Exterior Cleaning · Sullivan's Island, SC
#1 Exterior Cleaning Company on Sullivan's Island, SC
Careful, low-pressure soft washing for Sullivan's Island cottages, metal roofs, porches and Ipe decks, from Station 12 to the back island. Insured to $2 million, with a reply within 15 minutes.
Get your free Sullivan's Island quote
Four fields, one minute. A person texts you back within 15 minutes during business hours.
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We will text you within 15 minutes during business hours. If you would rather talk now, call (843) 874-5500.
What you get
Careful work, clear numbers, and the price we quote is the price you pay.
- 5.0 stars across 44 Google reviews. Real Sullivan's Island and island homes, every one.
- Insured to $2 million. We send the certificate to anyone who asks.
- Low pressure on every surface. Never high pressure on siding, roofs or wood.
- Photos after every job. Whether you are home or not.
Our standard
Three things you can count on
What makes TrueWash different is not the equipment. It is how we treat your home, and we are happy to be held to it.
Low pressure on every surface. Always.
We never put high pressure on siding, a roof or hardwood, not on any house and not at any price. The cleaning solution does the work, so your paint, shingles and finishes stay exactly as they were.
Photos when we are done, whether you are home or not.
Every job ends with a walkaround and a set of photos sent to your phone. You never have to wonder what we did or how it turned out.
A real person, within 15 minutes.
Send the form and a person texts you back within 15 minutes during business hours. The owner is on every quote, and the same crew comes back every visit.
Our guarantee: if anything is not right, we come back and make it right.
What we clean on Sullivan's Island
Every surface gets the method it needs
Original wood siding, wide screened porches, metal roofs and decades of paint that do not forgive high pressure. Tap a service for what is included.
House Soft Washing
Low-pressure wash of every exterior surface, roofline to the ground: siding, brick, Hardie, soffits, trim and porches.
Kills the mold and algae at the root, so it stays clean far longer than a blast.
Learn moreDriveways & Hardscape
Pre-treat, surface clean and post-treat on concrete, pavers, walkways and pool decks.
Lifts the black and green out of the pores, not just off the top.
Learn moreRoof Cleaning
Shingle-safe and metal-safe soft wash that removes the black streaks and the algae behind them.
Keeps the roof out of the "replace it" conversation for years.
Learn moreExterior Windows
Pure-water pole cleaning of all exterior glass, frames and sills, no ladders on the house.
The part of the job you notice from inside, every morning.
Learn more Our specialtyIpe & Garapa Decks
Cleaning and brightening of hardwood decks, stairs and rails, with optional oil and seal.
One of the few crews in Charleston that treats hardwood as hardwood.
Learn more Members firstMaintenance Plan
Two scheduled house washes a year on one monthly price, priority scheduling and a locked rate.
Never let it get back to this again.
See the planWhy Sullivan's Island
A cleaning method that respects the island's character
Between the ocean on one side and the marsh on the other, Sullivan's Island homes see constant moisture and salt. Shaded porches, elevated pilings and mature landscaping make it worse. Algae and mildew return on a schedule you can almost set a calendar by.
Many houses on the island are older or built with materials that do not forgive high-pressure blasting: original wood siding, wide screened porches, and paint layers that have survived decades of storms. We identify what each elevation is made of before we start, keep pressure low everywhere on the structure, and pay particular attention to porch ceilings, railings and trim.
We are on Sullivan's Island every week, and island neighbors are some of our most loyal customers. If you are off-island, we handle everything while you are away and send photos of the finished result.
Neighborhoods we work in every week
Plus Isle of Palms and Mount Pleasant next door. All service areas →
Neighbors on TrueWash
What island homeowners say
Three of the 44 five-star reviews, from Sullivan's Island and the streets next door.
“Charlie and his crew were punctual, professional and super thorough. They power washed my house exterior and pool area, and everything was spotless when they left.”
“They power washed our home, decks and pool patio tiles, and sprayed down our outdoor furniture for a fresh new look. The entire job was fantastic and we highly recommend them.”
“Charlie did a fantastic job on our house. He showed up exactly when he said he would, and did a better, more thorough job than anyone else we have used.”
Second homes, rentals and listings
We work while you are away
We show up when we say we will, protect your landscaping and outdoor furniture, and walk the property with you when the work is done. If you are off-island, we handle everything and send photos.
Good to know
Sullivan's Island soft washing FAQ
Straight answers, the same ones we give on the phone.
How often should a Sullivan's Island home be washed?
Most island homes look their best with a professional wash every 6-12 months. Homes under heavy tree cover or close to the marsh often need attention twice a year.
Is soft washing safe for older and historic homes?
Yes. Low pressure is exactly what older siding, wood trim, and painted surfaces need. We match our method to each surface so nothing gets damaged.
Can you clean my roof without voiding the warranty?
Yes, soft washing is the method shingle manufacturers recommend. We never use high pressure on a roof.
Do you ever use high pressure on a house?
Never on siding, trim, or roofs. Higher, controlled pressure is reserved for the surfaces built to take it, like concrete driveways and walkways. On the house itself, it is always a gentle, low-pressure wash.
Do I need to be on the island during the service?
No. As long as we can reach exterior water and any gates, we handle everything while you are away and send photos of the finished result.
Can you keep my home clean year-round?
Yes. A maintenance plan puts your home on a regular wash schedule, so salt film, mildew, and algae are handled before they build up, one less thing to think about on the island.
Ready for a spotless exterior on Sullivan's Island?
Get a fast, clear quote. We will take a look, send a clear price, and schedule around you.