How to Start a Window Cleaning Business (The Step Nobody Mentions)

Every guide about starting a window cleaning business gives you the same list. Register the company. Get insurance. Buy a van. Build a website. Set your prices.

None of them start with the thing that determines whether you succeed or fail at the actual job.

Can you clean a window properly?

I started cleaning windows professionally in Melbourne in 1999 with very little business knowledge and a lot of enthusiasm. What kept me in business wasn't the insurance policy or the website. It was the ability to leave every window crystal-clear, streak-free, and without damaging anything. That's the thing that gets you called back. That's the thing that gets you referred.

Twenty-five years later, I'm booked a year in advance in Vienna, with a 95% repeat-client rate and 35+ five-star Google reviews. Not because I had a perfect business plan at the start. Because I mastered the skill first, and the business followed.

This guide covers how to start a window cleaning business properly. The business steps are here. But we start where every other guide skips.

Step Zero: Learn to Clean a Window

This is the step that doesn't appear in any of the standard business guides, and it's the step that decides everything.

The squeegee technique is a physical skill. It is not obvious, and it is not something you figure out on a customer's window for the first time. The three squeegee turns, the side-to-side, the top-to-bottom, and the turn with a twist (the continuous fanning motion that links every pass into one flowing movement from top to bottom), take time to build in your hands. The agitation step, the frame detailing before squeegeeing, the angle of the rubber, the overlap between passes: these are the things that produce a streak-free result. Getting them wrong produces dissatisfied customers and no repeat business.

There is no shortage of business advice for window cleaners. AI can write you a business plan in minutes. But nothing teaches your hands to hold a squeegee at the right angle. Nothing builds that muscle memory except practice with the right guidance.

Master the skill first. The business follows.

The free Window Cleaning Manifesto at /manifesto is five minutes of foundational technique. Do that before anything else on this list.

Understanding the Market

Window cleaning is a genuine business opportunity. The demand is consistent, the recurring nature of the work builds a stable client base, and the barriers to entry are lower than most service businesses.

Residential window cleaning serves homeowners who either can't or don't want to clean their own windows. This is a large, consistent market in most urban and suburban areas. Jobs are typically booked quarterly or twice a year, which means a well-run residential round creates predictable recurring revenue.

Commercial window cleaning serves offices, retail premises, restaurants, and commercial buildings. Jobs are more frequent, sometimes monthly or even weekly on high-traffic storefronts, and the per-job value is higher. Commercial clients often prefer consistency: the same team, the same standard, every visit.

Both markets exist in almost every city. The question is which one you want to serve, or whether you want to serve both.

The Tools You Actually Need to Start

The professional tool list for a window cleaning business is shorter than most people expect.

A squeegee with a swivel handle and two channel sizes (a 20cm and a 35cm cover most residential and commercial windows). A T-bar applicator (a T-shaped handle with a microfibre sleeve) and microfibre covers. A 25-litre bucket. Window-cleaning soap. 100% cotton towelling rags. An extension pole for windows above arm height. A tool belt with a belt bucket to keep everything at hand.

That's the complete working kit. A ladder for access to upper floors, and potentially a water fed pole system for large commercial or multi-storey exterior work, come later as the business grows. The starter kit is modest.

All these tools are available at orloffs.at.

The common mistake is spending money on equipment before building the skill to use it. A professional tool kit in the hands of someone who hasn't learned the technique produces the same result as a cheap kit: a poor clean and a lost customer.

Pricing: Where to Start

Window cleaning pricing varies by region, property type, and the scope of work. As a starting point for residential work:

Ground-floor windows are typically priced per pane or per visit, depending on the local market. Commercial work is usually priced per visit with a minimum job value. Research what established window cleaners in your area are charging, and position accordingly.

The most important pricing principle for a new business: do not undercut to win work. Underpricing signals to customers that your service is lower quality than the competition. It also leaves you no margin for the time it takes to do the job properly when you're building technique.

Price at or near the market rate. Win work on the quality of the result and the reliability of the service.

The Business Essentials

Once the skill is in place, the business setup is genuinely straightforward.

Register the business in your country or region. This is usually a simple online process and takes a matter of days. The structure (sole trader, limited company, or equivalent in your jurisdiction) depends on your local regulations and your plans for the business. Start simple.

Get public liability insurance before you take on your first customer. This is non-negotiable. Window cleaning involves working near people's property, and accidents happen. The annual cost of basic public liability cover is modest relative to the risk it protects against.

Open a business bank account. Keeping business income and expenses separate from personal accounts makes bookkeeping straightforward and is essential for tax purposes.

Set up a simple invoicing system. Many free and low-cost invoicing tools exist. Issue an invoice for every job, even small residential ones. This builds professional habits from the start and gives you a clear record of revenue.

Getting Your First Customers

The fastest route to first customers is almost always the people you already know. Tell your network you've started a window cleaning business. Offer the first clean at a reduced rate in exchange for an honest review. A handful of genuine positive reviews early on is worth more than any advertising.

Residential leaflet drops in target neighbourhoods work. Choose streets with well-kept properties: these are the homeowners who care about the appearance of their homes and are more likely to pay for a professional service.

Online presence matters, but it doesn't need to be complex to start. A Google Business Profile is free and puts you in front of local search results immediately. Set one up on day one, and ask every satisfied customer to leave a review.

Commercial work is best won by walking in. Go to the offices, restaurants, and retail premises you want to clean and introduce yourself. Have a simple, printed price list. Offer a no-obligation trial clean on a small area. Seeing the quality of the result does more than any sales pitch.

Building Repeat Business

The economics of a window cleaning business depend on repeat customers. A customer who books twice a year generates twice the revenue of a one-time job for the same acquisition cost. A customer who books quarterly generates four times as much.

Repeat business is built on one thing: consistent quality. If the windows are streak-free and the service is reliable every visit, customers come back. They also refer others.

The most effective marketing for a window cleaning business is a clean window at the end of every job.

Scaling the Business

Once the business has a stable base of repeat customers and the diary is reliably full, scaling means either taking on more customers than one person can handle, or employing and training staff.

Training staff is where many window cleaning businesses lose the quality that built them. The solution is a documented training system: a consistent method, a consistent standard, and a consistent way of assessing whether someone is ready to work unsupported on a customer's property.

The $69 Beginner Program at orloffs.com/for-beginners is designed exactly for this: the Manifesto, the AR Window Cleaning Training Tool (which builds the squeegee muscle memory in new staff before they touch real glass), and the 90-minute Mastery Course covering every technique from foundational through to advanced. One to two hours per week for one month produces a professional-level employee.

For businesses with teams, the Cleaning Business package at orloffs.com/for-cleaning-businesses adds the Clear View Creator App for progress tracking and quality reporting, and direct access to AMA sessions with me.

The Honest Summary

Starting a window cleaning business is genuinely achievable. The barriers are low, the demand is consistent, and the skill is learnable.

But the businesses that fail, and there are plenty, usually fail for the same reason: the owner focused on the business before the skill was in place. Insurance and a van don't clean a window. The rubber blade, held at the right angle, moved in the right pattern, does.

Master the skill first. The business follows.

Frequently Asked Questions

How much does it cost to start a window cleaning business? The starter tool kit for a professional window cleaning business costs a few hundred dollars or euros: a squeegee with two channel sizes, a T-bar applicator, microfibre covers, a 25-litre bucket, soap, 100% cotton rags, and an extension pole. Business registration and basic public liability insurance add to the initial outlay, with registration costs varying by country and insurance typically in the range of a few hundred per year for a sole operator. There is no requirement for a van to start: many residential window cleaners begin on foot or bicycle with a compact kit, particularly in urban areas. The total startup cost for a basic, professional operation is far lower than most service businesses.

Do I need a licence or certification to start a window cleaning business? In most countries and regions, no specific licence is required to start a residential window cleaning business. Commercial work at height, particularly rope access or specialist high-rise cleaning, may require additional certifications depending on local regulations. Public liability insurance is not always legally required but is essential for any professional operation. Check the regulations in your specific country and region before starting, as requirements vary. Certification, while not legally required in most cases, demonstrates professionalism to commercial clients and can be a genuine differentiator.

How long does it take to learn window cleaning properly? The foundational squeegee technique, the side-to-side and top-to-bottom turns, can be learned in a single focused session. The turn with a twist, the continuous fanning motion that professional window cleaners use on larger windows, typically takes longer to build into the hands, because it is a physical skill that requires the wrist rotation to become automatic. As a general guide, one to two hours of practice per week for one month produces confident, professional-level results on standard residential windows. The AR Window Cleaning Training Tool at orloffs.com allows you to practise all three turns in augmented reality before working on real glass.

AUTHOR BIO

Justin Orloff is a professional window cleaner with 25 years of experience. He started cleaning windows in Melbourne, Australia in 1999, built a thriving service business in Vienna booked a year in advance, and created the world's first AR window-cleaning training platform. Based in Vienna, Austria.