Check OuT our Most Asked Questions

Frequently Asked Questions

Person power washing a stone column on a house with large windows and a black balcony.
Half of a roof cleaned, showing difference in debris and color.
Man pressure washing white building facade with a water spray.
Person pressure washing concrete patio with a yellow circular cleaner.

General FAQ

  • What is soft washing (and how is it different from pressure washing)?

    Soft washing uses low pressure and specialized cleaning solutions to safely remove algae, mold, mildew, and grime from surfaces like siding and roofs. Pressure washing uses higher pressure and is best for harder surfaces like concrete.

  • Is soft washing safe for my roof?

    Yes — soft washing is actually the best way to remove those black streaks on your roof. 👍


    Those streaks aren’t dirt; they’re usually Gloeocapsa magma, a type of algae that feeds on the limestone in shingles. Soft washing uses a low-pressure, specialized cleaning solution that kills the algae at the root, instead of just blasting it off.

  • What surfaces can TrueWash clean?

    Full Exterior Soft Wash


    Gentle, low-pressure cleaning for siding, trim, and delicate surfaces. Safely removes algae, mold, and mildew while protecting paint and finishes.


    Driveway & Concrete Cleaning


    Deep cleaning for driveways, sidewalks, and patios to remove stains, dirt, and discoloration—instantly improving curb appeal.


    Ipe Deck Cleaning


    Wood-safe, low-pressure cleaning that restores Ipe decking’s rich color without damage.


    Roof Cleaning


    Safe soft washing removes black streaks and algae while protecting your shingles.


    Why TrueWash


    Reliable, high-quality exterior cleaning that enhances your property’s look, value, and longevity.

  • Will soft washing remove the black streaks on my roof?

    Yes. Soft washing effectively removes black streaks from your roof.


    Those streaks are caused by algae buildup. Soft washing uses a low-pressure, specialized cleaning solution to kill the algae at the source, safely restoring your roof’s appearance without damaging the shingles.

  • How long do results last?

    It depends on shade, moisture, and surrounding trees, but most homes stay noticeably cleaner for a long time after service. Roof and siding results can last longer with routine maintenance cleanings.

  • How long does an exterior cleaning service take?

    Most jobs take a few hours, but time varies based on the size of your home, the level of buildup, and which services you book (roof, house wash, concrete, etc.).

  • Will your cleaning solutions harm my plants or landscaping?

    We take precautions to protect landscaping, including pre-wetting, rinsing, and careful application. If you have delicate plants, let us know so we can take extra steps.

  • Do you clean in all weather?

    We work around heavy rain, lightning, or unsafe conditions. If weather impacts your appointment, we’ll contact you to reschedule as soon as possible.

  • What should I do to prepare for my appointment?

    We recommend closing windows and doors, moving vehicles away from work areas, and clearing small items from porches/patios. If needed, we’ll also ask you to keep pets inside during service.

  • Are you licensed and insured?

    Yes TrueWash operates professionally and carries insurance for your peace of mind. (If you want, I can also add the exact wording you prefer here.)

  • Do you offer a satisfaction guarantee?

    Yes. If something doesn’t look right after service, contact us and we’ll make it right according to our satisfaction policy.