From Film Sets to Squeegees: How Simon Roel Built a Profitable Window Cleaning Business

If you had asked Simon Roel in 2022 where life was headed, “window cleaning” wouldn’t have made the short list. The 39-year-old Dane had spent years freelancing as an illustrator, deploying with the Army, and chasing film sets from Norway to New York. The work was exciting—but paydays were random, and the constant travel left little room for long-term plans.

Discovering an “Unsexy” Goldmine

By mid-2023 Simon craved stability. While browsing for how to start a window cleaning business—an idea he’d heard praised by American startup mentors who recommend “unsexy” niches—he discovered Vinduespudseskolen (the Danish Window Cleaner School). A course promised hands-on window cleaning training, a ready-made business plan, and a clear path to recurring revenue.

The pitch resonated. In October 2023 Simon enrolled, trading film-set glamour for squeegees, soap, and ladders. He learned traditional and pure-water techniques, ladder safety, pricing fundamentals, and the importance of window cleaning business insurance. Better yet, the subscription model offered predictable cash flow—something his film gigs never could.

Lessons from the Ladder

Learning the craft wasn’t instant. Simon spent months perfecting rubber-blade cuts, soap ratios, and wrist-friendly squeegee angles. Small tweaks—like adding a belt pouch for wet and dry cloths—boosted speed and confidence. Along the way he kept one mantra in mind: compare less, practise more. Everyone’s learning curve is different, and patience ultimately paid off.

Scaling Without Losing Soul

By 2025 Simon had two new milestones:

  1. One employee now helps service overflow routes, freeing Simon for strategy and family time.

  2. He gifted the Danish window-cleaning operation to his cousin, an aspiring musician. The business is a perfect side hustle: weekday routes cover bills, leaving evenings free for rehearsals and gigs—proof that window cleaning can fund creative dreams without stealing focus.

Watching a loved one benefit from a trade he once knew nothing about is, he says, “more satisfying than any blockbuster credit.”

Why Simon’s Story Matters

Window cleaning rarely trends on social media, yet it checks every entrepreneurial box:

  • Low barrier to entry. Basic tools and a short training course can launch a business.

  • Recurring revenue. Subscription routes smooth income and raise customer lifetime value.

  • Transferable skills. Sales, scheduling, and customer care apply to any service venture.

  • Side-hustle friendly. Routes can compress into a few mornings, perfect for artists, students, or anyone exploring blue-collar business ideas.

Simon’s path also debunks the myth that satisfaction only comes from “passion projects.” He’s still creative—now he listens to podcasts while polishing panes—but he no longer stresses over feast-or-famine paydays.

Final Word

From sketchbooks and film sets to ladders and ledgers, Simon Roel proves that “unsexy” work can build a life you’re proud of—and even help a cousin chase rock-star ambitions. If you’re searching for a practical, high-profit way to work for yourself, his story is a clear window into what’s possible.

Frequently Asked Questions

Can I build this in any country?
Yes! The program is born global — meaning that if you understand English and like what you’re reading here, then you can build your business anywhere in the world as long that we have windows.
How do I get started building a window cleaning business?
Go to the Learning Hub on the Windowcleanerschool website to learn how everything works. Then, apply to join the next batch. Once accepted, you’ll start learning and building step by step — investing as many hours as you feel comfortable with, we can always adjust as we go. We’re in it for the long term.
Do I need to be physically present in Denmark?
No. Once you become a partner, you’ll be invited to Denmark for in-person training — but that comes later, when your business is up and running and your company can cover travel and accommodation costs. To begin with, everything can be done remotely from your home and then things look different when you have success and are fully flexible as well.