What Should You Ask a Power Washing Company Before Booking?
Ask what method they use for your specific siding material, whether they are insured, what cleaning solutions they use and how they protect landscaping, and whether you need to clear outdoor furniture before they arrive. The method answer matters most: soft wash on surfaces that high pressure would damage, higher pressure only where the material can take it.
What Method Do You Use for My Specific Siding?
Name your siding material: vinyl, fiber cement (HardiePlank), wood, stucco, EIFS, brick. Ask the company what pressure and method they use for that material. The correct answer for vinyl, wood, stucco, and EIFS is soft wash (low pressure with cleaning solution). The correct answer for concrete and brick pavers is pressure washing. A company that says the same method for everything is a risk for surfaces that require soft wash.
Are You Insured?
Power washing performed incorrectly can damage siding, windows, and decks. A liability-insured company covers damage they cause. Ask for proof of general liability insurance a certificate from the insurance carrier confirming active coverage. Any company that cannot produce this documentation is uninsured. (For more on this, see Power Washing vs. Soft Washing: Which Does Your Home Need?.)
What Cleaning Solutions Do You Use and Are They Safe for Landscaping?
Soft-wash biocidal solutions (typically sodium hypochlorite, the active ingredient in pool shock) are effective but can damage plants and grass if over-applied or not properly rinsed. A quality company pre-wets landscaping before applying solution, uses appropriate dilutions, and rinses plantings after cleaning. Ask specifically how they protect landscape beds and grass from chemical runoff. (For more on this, see Can I Power Wash My Own Home or Should I Hire a Pro?.)
Do You Move Patio Furniture and Outdoor Items?
Confirm whether the crew moves and replaces patio furniture, potted plants, and decorative items as part of the service, or whether you need to clear the areas before they arrive. Most companies expect homeowners to clear items; some include light furniture moving. Knowing in advance prevents day-of delays. (For more on this, see What to Expect on Power Washing Day.)
Working With a Contractor on This Project
Getting the right outcome on any home services project starts before the work begins. A few consistent practices make the difference between a smooth project and a frustrating one.
Get at least two or three quotes. A single quote gives you no basis for comparison. Two or three quotes reveal the market rate for the work, expose scope differences between bidders, and let you assess contractor communication quality before any commitment is made. The lowest bid is not automatically the best value if the scope is thin or the materials are underspecified.
Ask for licenses and insurance before work starts. Verify current general liability insurance and, for any work involving workers on your property, workers compensation coverage. Licensing requirements vary by state and trade; confirm the specific requirements in your jurisdiction. A licensed contractor who carries appropriate insurance protects both parties if something goes wrong during the project.
Get the scope in writing. A written proposal that specifies materials, labor scope, timeline, what is included (permits, cleanup, disposal), and warranty terms is the foundation of a professional engagement. Verbal agreements on any of these points invite misunderstanding. For any project over $500, written scope is non-negotiable.
Clarify the payment schedule upfront. A reasonable payment schedule ties major payments to project milestones: a deposit at signing, a payment at material delivery or project start, and a final payment at completion after a walkthrough confirms satisfaction. A contractor who requires full payment upfront before work begins is a red flag in any trade.
Making a Confident Decision
The information in this article is designed to help you ask better questions of the professionals you work with, evaluate their answers with more confidence, and understand the decisions involved in this type of home services project. It is not a substitute for professional assessment of your specific home.
Every home is different. Roof slopes, local weather, tree exposure, soil conditions, and existing system condition all affect what the right solution is for your specific situation. The general principles here apply broadly, but a professional who assesses your home in person will give you guidance that accounts for the details that general articles cannot.
When you are ready to move forward, getting at least two or three quotes from licensed, insured, local contractors is the most important practical step. It lets you compare approaches, assess contractor quality, and confirm that the solution proposed matches your specific situation and budget.
Power Washing Cost at a Glance
Standard single-family home: $250 to $650 for exterior walls, driveway, and sidewalk on one visit.
Large home or multiple surfaces: $550 to $1,300 for siding, driveway, deck, and fence on a larger property.
Single surfaces booked alone: driveway and sidewalk $75 to $350; deck, patio, or fence $100 to $350. Booked on their own they fall below the whole-visit range.
Method matters: pressure washing siding runs $212 to $447; soft washing the same siding runs $300 to $800.
Heavy grime or mold: Added cost for stubborn buildup needing more time and stronger solutions.
Overall range: $250 to $1,200 for a whole-home visit, averaging $450.
Cost figures on this page were checked against published pricing on August 27, 2026. How we source cost data.
