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  • Verified reviews icon48
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Top-Rated Pressure washers in Altadena - Updated Nov 2026

Avatar for Los Angeles Pressure Washing, Inc.
Los Angeles Pressure Washing, Inc.
4.9(
43
)
Exterior Surfaces - PowerwashingExterior Surfaces - Powerwashing - For Business

Serving Altadena, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I highly recommend Los Angeles Pressure Washing, Inc., the services are prompt and professional. I recently made a major mistake of filling in the crevices of my brick-paved pavement. I used a very fine cement and it did the job of filling the crevices, however, it left an unsightly white-wash residue on my brick-paved pavement. I thought that it would be impossible to remove the unsightly cement film. However, L.A. Pressure Washing, Inc. did a beautiful job of restoring and removing all the cement residue from my bricks with minimal mess. The price was very reasonable too and I don't have to redo my brick-paved pavement with costly expenses. Thank you L.A. Pressure Washing team."
Wood Deck Cleanning/Restoration
Concrete Cleanning
Pool Area
Surface Cleanning with No Water Runoff
Pressure Washing Brick

+24

Response time3 hrs
Response rate93%
Recommended by100%of homeowners
Pressurize Washing Systems
5.0(
20
)
Exterior Surfaces - Powerwashing - For Business

Serving Altadena, CA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Jorge, with Pressure Washing Systems, did an excellent job removing graffiti from a concrete wall of our condominium building. Very professional and reasonably priced. I recommend their services and would use them for future work."
Past Projects
Past Projects
Past Projects
Past Projects
Past Projects

+7

1 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Window Wizards
Window Wizards
5.0(
9
)
Exterior Surfaces - PowerwashingExterior Surfaces - Powerwashing - For Business

Serving Altadena, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Window Wizards did an excellent job. They pressure washed my driveway, walkway, back patio, and also washed and cleaned my patio doors. Window Wizards was very professional and did a thorough job and I would definitely hire them again and refer them to others."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Pressure Washing FAQs, answered by experts

Before pressure washing, you can spray your deck lightly with a deck cleaning solution made of equal parts oxalic acid and water. Oxalic acid has a brightening effect that will lighten mold stains and return the deck to its original freshly-sawn look. Allow the solution to sit for about 20 minutes before pressure washing so it has time to take effect.

Yes, biodegradable cleaning agents and water-saving techniques minimize environmental impact.

Experts agree that spring and fall are the best times to pressure wash a home's exterior due to the milder weather. Aim to schedule the project once a year during a warm, dry season, typically between March and November, depending on your local climate. Many prefer the spring to clean away dirt and grime that has gathered over the winter, preparing the house for the rest of the year. You can always perform touch-ups in the summer or fall as needed.

For pressure washing a driveway, a PSI (pounds per square inch) between 2,000 and 3,000 is recommended for both concrete and asphalt surfaces. A pressure of 3,000 PSI is ideal for deep cleaning without causing damage, effectively removing debris, dirt stains, and even oil spills. If your pressure washer has a lower PSI rating, you can still use it, but the cleaning process will take longer. For a more efficient and even clean, consider using a surface cleaner attachment.

It’s important to avoid power washing your house during freezing temperatures because the excess water can freeze on surfaces and cause damage. You should also avoid doing this task during heavy wind or rain because the water spray becomes less effective and could spread debris. Don’t power wash your home if your siding is cracked, loose, or peeling because the high pressure can worsen the damage. Lastly, if your home has delicate materials like softwood or stucco, consider gentler cleaning methods to prevent structural harm.

The Altadena, CA homeowners’ guide to pressure washing services

From average costs to expert advice, get all the answers you need to get your job done.