About Cobus Bester and Solar & Window Clean
Last updated: 8 October 2026
Who runs Solar & Window Clean?
Cobus Bester owns and runs Solar & Window Clean from Fish Hoek, Cape Town. He has 30 years in the home maintenance business. He quotes each job himself, from the photos or short video you send on WhatsApp.
Solar & Window Clean itself is a new business. You can read what Solar & Window Clean does on the home page.
More about Cobus is coming soon.
How does Cobus work?
Cobus works by two principles. In his own words:
- Serving customers "better than they expected".
- Using the "best and correct tools for a specific job", which means "best results, always".
For you, that starts with honest advice. Canadian Solar says panels tilted at 15° or more "generally may not require cleaning", because rain does the job [4]. If your panels are steep and get a good rinse every winter, they may not need a clean yet. Send Cobus a photo or short video on WhatsApp and ask.
Why does Cobus clean with purified water and soft brushes?
Cobus cleans with purified water and soft brushes because, in his view, they're the right tools for glass. He uses equipment from a specialist South African supplier. It purifies the water by reverse osmosis and feeds it through water-fed poles.
Purified water has almost no dissolved minerals, so it dries without mineral spots and needs no soap or detergent, says cleaning-equipment maker Unger [1]. Most glass is cleaned from the ground with water-fed poles.
See how this works for solar panels, solar geysers and windows and glass.
How does Cobus avoid damaging panels and glass?
Cobus follows the solar panel makers' rules on walking, heat and cracked glass, and treats solar geyser collectors the same way.
- We never walk, stand or kneel on solar panels or solar geyser collectors. JA Solar, Jinko, LONGi and Trina all forbid standing on their panels [2, 3, 5, 6].
- We clean panels and collectors only when they are cool. Jinko warns that cool water on hot glass may break it [3].
- Trina and Canadian Solar say panels with cracked glass must not be wet-cleaned [4, 6]. If we see cracked glass, we leave it alone and tell you.
What kind of business is Solar & Window Clean?
Solar & Window Clean is a trading name of Cobus Bester (sole proprietor). Not VAT-registered. Our full business details are on the terms page.
It's a mobile service based in Fish Hoek, so we always come to you. We work in Fish Hoek, Noordhoek, Kommetjie, Simon's Town, Hout Bay, Camps Bay, Constantia and Claremont. See where we work.
When can you reach Cobus?
You can reach Cobus Monday to Saturday, 08:00–17:00. He aims to reply to WhatsApp messages within an hour during these hours.
Send Cobus your suburb, the service you need, and photos or a short video of what needs cleaning. Every quote is all-in, with travel included. Cobus agrees the price with you on WhatsApp, from your photos or video, before any work starts. Nothing is added on the day. See how prices work.
You can also call 082 332 7646 or email solarandwindowclean@gmail.com.
What doesn't Solar & Window Clean do?
Solar & Window Clean cleans only solar panels, solar geysers and glass on single- and double-storey buildings. We don't offer:
- paving, driveway or patio washing. Cape Town's Water By-law doesn't allow hosing down paved areas with municipal drinking water without the City's written permission [7].
- roof repairs
- plumbing or electrical work on solar systems (for repairs, call your installer or a plumber)
- anything above double-storey
Why are there no job photos or reviews yet?
There are no job photos or reviews yet because Solar & Window Clean is a new business. Real job photos will appear here as we complete jobs, with customers' permission. Reviews will appear only once real customers leave them.
Frequently asked questions
Who owns Solar & Window Clean?
Cobus Bester owns Solar & Window Clean, a solar panel, solar geyser and window cleaning service based in Fish Hoek, Cape Town. Solar & Window Clean is a trading name of Cobus Bester (sole proprietor). Not VAT-registered.
Can I visit Solar & Window Clean?
No. Solar & Window Clean has no shop, office or premises open to the public. Cobus Bester runs it as a mobile service from Fish Hoek and always comes to you, Monday to Saturday, 08:00–17:00. To book, WhatsApp him your suburb, what needs cleaning and a photo or short video.
How much experience does Cobus Bester have?
Cobus Bester has 30 years in the home maintenance business. Solar & Window Clean, his solar panel, solar geyser and window cleaning service in Fish Hoek, is a new business. Real job photos will be added as jobs are done, with customers' permission.
Is Solar & Window Clean the same business as its equipment supplier?
No. Solar & Window Clean is a trading name of Cobus Bester (sole proprietor) and his own cleaning service, based in Fish Hoek. It uses equipment from a specialist South African supplier, which is a separate business.
Sources
Statements about Cobus's experience, principles, hours, services, method, quotes and business status are his own (client brief and client decisions, 8 October 2026).
- Unger, Pure water cleaning: which pure water filter you should use
- JA Solar, PV Single-glass Modules Installation Manual Q/JASO-PMO-012 A/24 (2025)
- Jinko Solar, UL 61730 User Manual, Edition 2/2026 (2026)
- Canadian Solar, Installation Manual IM/GN-EN/2.0 (2024)
- LONGi, PV O&M Module Manual V2 (2024)
- Trina Solar, Vertex Series User Manual UM-M-0002 PP7 (2026)
- City of Cape Town, Water By-law 2010 (amended 2018), unofficial consolidation*, Schedule 1 item 3 (2018)