Pressure Washing Equipment List: What You Actually Need to Start

Most guides tell you to buy everything at once. That's the wrong approach. A $1,500 starter kit can generate $50,000+ in your first year. This list covers exactly what you need to start taking jobs -- and what you can skip until you're actually making money.

The Quick Answer

Here's what you actually need on day one:

Gas pressure washer (3,000-4,000 PSI, 3-4 GPM): $800-2,500
Surface cleaner attachment: $150-500
Nozzle set (5 tips): $30-50
Pressure hose (100+ feet): $100-200
Downstream chemical injector: $20-50
5-gallon chemical tank: $20-40
Cleaning chemicals (SH + surfactant + degreaser): $50-100 to start
Safety gear (goggles, gloves, boots): $50-100

Total starter kit: $1,220-3,540. That's it. Don't buy a trailer, a hot water machine, or a truck wrap until you're generating steady revenue.

The Pressure Washer Itself

Gas vs. Electric: Which Should You Buy?

For professional work, buy gas. Full stop.

Electric models produce 300-3,400 PSI and 1.2-2 GPM (gallons per minute). They're fine for a homeowner washing their car. For professional jobs, you need flow rate, and electric units don't have it. A 2,000 PSI electric washer will take 3x longer to clean a driveway than a comparable gas unit.

Gas models produce 2,700-5,000 PSI and 2.3-5.5 GPM. They're louder, require more maintenance, and cost more upfront -- but they're the only tool that lets you run an efficient, profitable operation.

The formula to remember: "PSI breaks the bond, GPM flushes it away." You need both. A 3,000 PSI machine with 2 GPM is frustratingly slow. Target 3,000-4,000 PSI AND 3-4 GPM.

PSI and GPM Requirements by Surface

Residential house washing (vinyl siding): 2,500-3,000 PSI, 3+ GPM
Driveways and concrete: 3,000-4,000 PSI, 3-4 GPM
Decks and wood surfaces: 1,500-2,500 PSI (lower to avoid damage)
Commercial buildings: 3,500-4,200 PSI, 4+ GPM
Soft washing (roofs, stucco, painted surfaces): 150-500 PSI via downstream injector

What Machine to Buy

Look for a belt-drive machine (longer lifespan than direct-drive). Budget picks in the $800-1,500 range will get you started. The ideal pro setup is a 4 GPM @ 4,000 PSI belt-drive machine ($1,500-4,000) -- this handles everything from driveways to commercial work without breaking a sweat.

Buy from a local pressure washing supply dealer if possible. Big-box store machines are often direct-drive and built for occasional homeowner use, not daily professional work.

Essential Attachments

Surface Cleaner (Don't Skip This)

If you only buy one attachment, make it a surface cleaner. It's a spinning disc with two rotating nozzles that cleans large flat areas evenly -- without the "zebra stripes" you get from hand-wanding back and forth.

Without it, hand-wanding a 1,000 sq ft driveway takes 45-60 minutes and looks amateur. With a surface cleaner, it takes 15-20 minutes and looks professional. The attachment pays for itself on the first job.

16' surface cleaner (for 3-4 GPM machines): $150-300
20-24' surface cleaner (for 5-8 GPM machines): $300-500

Match the cleaner size to your machine's GPM. A 4 GPM machine efficiently drives a 16' cleaner. Oversizing creates cleaning gaps; undersizing wastes the machine's capacity.

Nozzle Set

Nozzles are color-coded by spray angle. Every starter kit should include all five:

Red (0-degree): The most powerful jet. DO NOT use on customer property -- it will cut through wood and strip paint. Only use to unclog injectors.
Yellow (15-degree): Heavy-duty concrete prep, stubborn stain removal
Green (25-degree): Your workhorse. Most general cleaning situations.
White (40-degree): Delicate surfaces -- wood fencing, painted wood, older brick
Black (65-degree): Soap/chemical application at low pressure

A 5-tip nozzle set costs $30-50. Buy a spare set immediately -- nozzles wear out, get clogged, and get lost. Carrying extras saves you from canceling a job over a $10 part.

Pressure Hose

Get at least 100 feet. You'll need to reach the back of houses, around decks, and across large driveways without moving your machine every few minutes.

100-foot hose: $80-150 (steel-braided lasts much longer than standard)
50-foot extension: $50-80 (add this for larger commercial properties)

Chemical Application Setup

Downstream Chemical Injector

This fitting connects to your machine's outlet and draws chemical solution from a tank as water flows through. It's essential for house washing and soft washing. Costs $20-50 and saves enormous time versus manual application with a hand pump.

Chemical Tank

A simple 5-gallon bucket works for most residential jobs. For soft washing and roof cleaning where you need higher chemical volume and very low pressure (150-500 PSI), add a 12-volt soft wash pump and a 30-50 gallon tank in your truck bed. That setup costs $200-600 and opens up roof cleaning as a premium service ($300-900+ per job).

Chemicals to Stock

Sodium hypochlorite (SH, 12.5%): The main active ingredient for house washing and soft washing. Buy from a pool supply store, not a hardware store -- pool supply SH is full-strength; retail bleach is only 6-8% and costs 3x more per ounce of active ingredient.
Surfactant: Makes SH cling to vertical surfaces and boosts cleaning power. Add 1-2 oz per gallon of mix.
Concrete degreaser: For oil and grease stains on driveways. Pre-treat before pressure washing.
Neutralizer: Rinse after chemical applications to protect plants and neutralize runoff.

Chemical cost per job is typically $10-20. This is the main reason pressure washing profit margins run 60-80%.

Safety Gear

Don't skip this. 3,000 PSI water can cut through skin to the bone. Chemical exposure from sodium hypochlorite is a real daily risk.

Safety glasses or goggles: $10-20. Non-negotiable. Wear them every job.
Chemical-resistant gloves (nitrile or neoprene): $15-25. Standard latex breaks down in SH.
Non-slip rubber boots: $40-80. Wet surfaces, ladders, and moving equipment create serious fall risk.
Hearing protection: $10-20. Gas engines run 85-95 decibels. Daily exposure without protection leads to permanent hearing loss within a few years.

What You DON'T Need to Start

A trailer setup: Your truck bed or SUV handles everything in year one. Trailers are convenient but add $2,000-8,000 upfront.
A hot water machine: Hot water is only necessary for commercial degreasing (restaurants, kitchen exhaust hoods, heavy industrial). Not needed for residential work.
A dedicated work vehicle: Use what you have and wrap it or decal it later.
A water tank: For residential jobs, you connect to the customer's outdoor spigot. A tank is needed only for properties without water access.
A second pressure washer: One machine is plenty for a solo operator. Upgrade when you're hiring and running multiple crews.

Total Equipment Cost Breakdown

Budget starter (used machine, basic attachments): $1,000-2,000
Solid starter (new mid-range machine + all essentials): $2,000-3,500
Full professional setup (belt-drive, complete attachment kit, soft wash rig): $4,000-8,000

Start lean. A $2,500 setup can generate $40,000-80,000 in revenue per year for a solo operator working full days. Upgrade equipment with profit, not debt.

Bottom Line

You need a gas pressure washer with 3,000+ PSI and 3+ GPM, a surface cleaner, a nozzle set, 100 feet of hose, and a chemical injector. That's it for day one. Everything else is optional until you're consistently booking jobs.

Once you have a website, add a free QuoteSnap calculator so visitors can get instant pricing and you capture every lead automatically. The equipment gets you the job done -- the quote tool gets you the job in the first place.