A pressure washer is a powerful tool for cleaning driveways, siding, and patios, but it’s not suitable for every surface. Using it in the wrong place can cause serious damage, leading to costly repairs. Before you turn on the high-pressure spray, here are five areas where you should avoid using a pressure washer.

1. Roof Shingles

Pressure washing your roof may seem like a good way to remove dirt, moss, and algae, but it can actually do more harm than good. The high-pressure water can:

  • Strip away protective granules from asphalt shingles
  • Loosen or dislodge shingles, leading to leaks
  • Force water under the roof, causing mold and water damage

Instead, use a soft wash method, which involves a low-pressure rinse and specialized cleaning solutions. If you need professional help, A Good Front offers expert roof cleaning services that protect your shingles while removing harmful debris.

2. Windows and Glass Surfaces

Windows may seem durable, but a pressure washer can shatter glass or damage the window seals. The force of the water can:

  • Crack or break weak glass
  • Force water inside, leading to leaks and mold
  • Strip away window caulking and weaken insulation

To safely clean windows, use a soft wash or a gentle hand-washing method with a squeegee and mild detergent.

3. Electrical Panels and Outdoor Fixtures

Electricity and water don’t mix, making it extremely dangerous to pressure wash electrical components. High-pressure water can:

  • Damage electrical boxes, meters, and outdoor outlets
  • Force water into wiring, increasing the risk of short circuits and fires
  • Destroy the protective casing of lights and HVAC units

Always clean electrical panels and fixtures carefully with a damp cloth. If you’re unsure, call a professional for safe exterior cleaning.

4. Painted and Stained Wood Surfaces

Pressure washing can strip paint and stain from decks, fences, and wooden furniture. Using high pressure on wood can:

  • Remove protective coatings, causing early deterioration
  • Splinter and damage softwood surfaces
  • Force water deep into the wood, leading to rot and mold growth

Instead, use a soft-wash method or a garden hose with a scrub brush to clean delicate wooden surfaces without damage.

5. Vehicles and Outdoor Equipment

While it might seem convenient to pressure wash your car, lawnmower, or grill, high-pressure water can cause unexpected problems. It can:

  • Strip paint and decals from vehicles
  • Force water into engine components, leading to rust and mechanical issues
  • Damage seals and rubber gaskets

For cars, always use a low-pressure setting or a touchless car wash. For outdoor equipment, a hose and sponge are safer alternatives.

To avoid costly damage, trust A Good Front for professional and safe pressure washing services. Call 720-545-8422 or visit their Google Maps location to schedule your cleaning today.