What Surfaces Should Never Be Pressure Washed (And What to Do Instead)

Pressure Washing Isn’t Always the Answer—Here’s When to Avoid It

At BullsEye Services, we handle a lot of pressure washing across Phoenix, from dusty driveways in Chandler to commercial building exteriors in Mesa. While power washing is an excellent solution for most surfaces, not everything should be hit with high pressure.

Using pressure washing in the wrong places can cause cracks, water damage, paint removal, or even void warranties. Let’s walk through what to avoid—and what to do instead.

1. Roof Shingles

Arizona roofs get hit hard by the sun, and pressure washing only makes it worse. On asphalt shingles, high-pressure streams can strip away protective granules, loosen tiles, and even force water beneath the surface.

Instead: Soft washing or roof-specific cleaning systems use low-pressure water mixed with cleaners that remove grime without damaging materials.

2. Stucco Walls

Common in homes throughout Phoenix and Tempe, stucco is highly porous and prone to cracking under intense water pressure. Pressure washing can lead to breaks, water infiltration, and internal mold—especially during the monsoon season when humidity spikes.

Instead: Use a low-pressure setting with specialized nozzles or opt for soft washing with a safe cleanser designed for stucco surfaces.

3. Wood Decks and Fencing

Older wood structures are especially vulnerable. Pressure washing can gouge soft wood, splinter boards, or strip protective coatings, making them more vulnerable to heat and dryness.

Instead: Use a medium-pressure rinse with a fan tip, or hand-scrub sensitive areas. BullsEye can also apply protective sealants post-cleaning.

4. Vehicles, HVAC Units, and Electrical Boxes

While it’s tempting to blast away dirt, these delicate systems can be permanently damaged. Water pressure can force water into wires, dislodge components, or corrode metal fittings.

Instead: Clean around them by hand or use a low-pressure rinse at a safe distance. Leave detailed cleaning to specialists.

5. Cracked or Deteriorating Concrete

Pressure washing broken concrete can worsen cracks, lift surface layers, or loosen masonry joints. This is especially common in older commercial lots or sidewalks exposed to years of Arizona heat.

Instead: Have BullsEye inspect the surface first. If repairs are needed, we can recommend masonry work before performing any deep cleaning.

The BullsEye Difference

At BullsEye Services, we assess every job site before we start. Our team understands which surfaces can take the heat—and which need a gentler touch. That’s why Phoenix businesses trust us to protect their property while keeping it clean.

We offer:

• Commercial pressure washing

• Residential exterior cleaning

• Sidewalk and driveway cleaning

• Graffiti removal

• Masonry and concrete assessments

Our team services Phoenix, Chandler, Mesa, Gilbert, Tempe, and surrounding communities.

FAQs About Pressure Washing in Phoenix

Q: Can I pressure wash painted surfaces?
Only if they’re properly sealed and in good condition. Otherwise, you risk stripping the paint or exposing the surface underneath.

Q: Does the Arizona heat make surfaces more vulnerable?
Yes—especially stucco and concrete. Prolonged sun exposure weakens materials, making them more likely to chip or crack under pressure.

Q: Is soft washing better for Phoenix homes?
In many cases, yes. Soft washing is safer for delicate surfaces and still removes dust, algae, and stains effectively.

Call to Action

Not sure if pressure washing is safe for your property?
Contact BullsEye Services for a free consultation. We’ll inspect your surfaces and recommend the best approach—whether that’s pressure washing, soft washing, or a tailored alternative.