Overview
Decks and fences collect mildew and grime. Cleaning prepares wood for staining.
Wood is easily damaged by high pressure.
The usual process
- Choose method. Low pressure or cleaner.
- The provider does a walk-around. They check for loose siding, open vents and fragile areas first.
- Describe the surfaces. Concrete, siding, wood and roofs each need different pressure and cleaning solutions.
- Water access is needed. Most providers connect to an outdoor spigot.
- Expect plant protection. Good providers pre-wet or cover plants when using cleaning solutions.
Before you decide
- Wood fuzzing. High pressure raises fibers.
- Staining timing. Wood needs to dry.
- Paint and coatings can lift. Washing can reveal paint that was already failing.
- High pressure can damage surfaces. Siding, wood and roofs usually call for soft washing.
- Stains vary. Oil, rust and organic stains need different treatments, and some may not fully lift.
- Runoff rules exist. Some cities restrict washing water into storm drains.
Before you send an inquiry
- Photos, if you have them; they help a provider understand the job faster.
- The best way and time to reach you.
- Your address or nearest cross streets so the request reaches someone local.
- Any HOA, landlord or property manager rules that apply.
- A short description of the job and where it is on the property.
Red flags to watch for
- Pressure to sign or pay the same day.
- Requests for large cash deposits before any work is scheduled.
- Door-to-door offers right after a storm with no local track record.
- No local address or references you can check.
- Unwilling to share proof of insurance or a license where one is required.
Questions to ask a provider
- Do you use soft washing for siding and roofs?
- What cleaning solutions do you use, and are they safe for plants and pets?
- Are you insured if a surface or window is damaged?
- How do you handle runoff?
- Is the price per square foot or a flat rate?
- Do you offer sealing after cleaning?
Frequently asked
- Can composite decks be pressure washed?
- Often at low pressure; check manufacturer guidance.
- When can I stain after cleaning?
- Usually after the wood dries fully.
- How often should I pressure wash?
- Many homeowners clean driveways and siding once a year, but shade, trees and climate can change that.
Related topics
- Commercial Pressure Washing: Storefronts, lots and dumpster pads.
- Driveway & Concrete Cleaning: Cleaning driveways, sidewalks and patios.
- Roof Cleaning: Removing algae and moss from roofs.