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Tired of dirty windows blocking out daylight? With professional window cleaning, you'll get sparkling clean windows and more light. We use state-of-the-art techniques, special cleaning agents, and safe ladders for all types of glass. In offices, shops, schools, and apartments, we make short work of fingerprints, dust, cobwebs, and air pollution. Our super team works […]

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Professional window cleaning

Tired of dirty windows blocking out daylight? With professional window cleaning, you'll get sparkling clean windows and more light. We use state-of-the-art techniques, special cleaning agents, and safe ladders for all types of glass. In offices, shops, schools, and apartments, we eliminate fingerprints, dust, cobwebs, and air pollution.

Our exceptional team thrives on experience and excellent service. Using sturdy equipment, we can also effortlessly handle high facades, conservatories, glass galleries, and even panels. You don't have to worry about limescale, tricky window frames, or streaks afterward.

Curious how window cleaning by real professionals makes a difference for your building, facade, or office? Inspired by our 5-star Google reviews for window cleaning ? At Schoonmaakbedrijf Groene Hart, you will see the results immediately.

What is professional window cleaning?

Professional window cleaning is the specialized cleaning of glass surfaces, frames, and surrounds according to a proven protocol. This is done using modern techniques that meet the strictest safety requirements. As a cleaning company, Groene Hart utilizes advanced osmosis systems, works with carbon telescopic poles, and uses environmentally friendly cleaning agents for streak-free results. We clean windows sparkling clean for housing corporations, homeowners' associations, schools, offices, shops, and healthcare institutions, from the ground floor to the roofs of high-rise buildings.

  • Osmosis water technology: Chemical-free cleaning with demineralized water, so windows dry streak-free and dirt stays away for longer
  • Telescopic washing: Safe window cleaning with extendable poles up to 18 meters high without using ladders or aerial work platforms
  • Traditional manual window cleaning: Classic window cleaning for smaller heights or hard-to-reach places
  • Ecologically responsible cleaning: Application of sustainable cleaning agents and water-saving technologies, in accordance with the VCA certificate and ISO standards

Efficient, professional and always available

Request a free quote today and discover how much you can save.

History of professional window cleaning in the Netherlands

Window cleaning has a long history, dating back to the rise of large-scale glass architecture in the nineteenth century. Originally, cleaning was primarily done manually with water, chamois leather, and hand tools. The introduction of the rubber squeegee in the early twentieth century—thanks in part to innovators like Ettore Steccone—enhanced efficiency and cleaner results. In the Netherlands, professional window cleaning, including by companies like Groene Hart, rapidly became more professional due to the rise of specialized cleaning organizations, innovative tools, and safety and environmental regulations. Now, osmosis water is the standard, and sustainable business practices are always taken into account.

The window cleaning process: Safe and structured cleaning

As a certified cleaning company, we adhere to industry best practices, as established by the RAS (Dutch Council for Labor Relations in the Cleaning and Window Cleaning Industry). Our employees work with:

  • VCA-certified working methods: Strict adherence to safety protocols for working at heights
  • Planned maintenance: Drawing up a customized window cleaning plan, tailored to the level of contamination and location
  • Disinfectant pre-cleaning: Preventive cleaning of glass against bacteria, limescale formation and atmospheric dirt
  • Inspection and reporting: Documentation of services performed, observed damage and advice on glass condition, all with an eye for transparency

This keeps your windows clean for longer, ensures the appearance of your building is always optimal, and prevents permanent damage from dirt accumulation or water ingress.

Types of window cleaning for every company and sector

Within professional window cleaning, we offer various techniques and applications, tailored to the location, height, and intensity of use. Each type requires its own approach and specific equipment. We service, among others:

  • High-rise window cleaning: Cleaning of office buildings, residential towers or healthcare institutions with telescopic systems or certified aerial work platforms
  • Regular office and shop window cleaning: Periodic streak-free cleaning with manual and semi-automatic tools
  • Specialist facade cleaning: Complete approach to glazing, plastic panels and metal frames for a total package in facade maintenance
  • Solar panels and glass roofs: Cleaning with osmosis water for maximum light transmission and efficiency

Every project begins with a clear intake, on-site inspection, and tailored advice. This way, we always ensure the right approach for schools, government buildings, apartment complexes, or commercial buildings, with quality and safety always paramount.

Sustainable and innovative tools for window cleaning

Window cleaning is rapidly evolving. Sustainability and safety are paramount. Groene Hart Cleaning Company uses only industry-leading technology, such as Unger telescopic cleaning systems with lightweight carbon poles and hygienic osmosis water. This allows you to clean windows perfectly at great heights, without risk to personnel. We conserve water, avoid the use of harsh cleaning agents, and always adhere to applicable occupational health and safety guidelines, even in challenging weather conditions. Our permanent teams receive ongoing training in the latest innovations and quality standards.

  • Osmosis water systems: Durable, effective cleaning, no residual stains or streaks
  • Lightweight carbon telescopic handles: Working without ladders, safe for people and the environment
  • VCA and ISO 14001 certified personnel: Constant focus on health, safety, environment and quality
  • Transparent inspection reports: True care for your building

Why do companies choose Groene Hart cleaning company?

You don't want to worry about the appearance of your building, because windows are your property's calling card. With professional window cleaning, we let your location always speak for itself. We offer competitive rates through a lowest price guarantee, work 24/7 for emergencies, and operate nationwide. Personal service is standard: you can easily call or WhatsApp your dedicated contact person at 0172 727 977 or email info@schoonmaakgroenehart.nl. You will always receive prompt assistance and a clear, free quote. If you would like to know more about window cleaning within a broader cleaning context, feel free to check out our service on hiring a cleaning company for your complete office cleaning ( tailored advice for specialist cleaning ).

Experience the benefits of window cleaning by a professional company that adheres to the strictest environmental standards for yourself. Easily request a free quote for professional glass maintenance within 24 hours via our convenient request service ( receive a quote for professional window cleaning quickly ). We always ensure your windows sparkle, in the Groene Hart and far beyond!

Frequently asked questions

What exactly does professional window cleaning entail?

Professional window cleaning means your windows, facades, and frames are thoroughly and streak-free cleaned by experienced professionals. Groene Hart Cleaning Company uses decalcified osmosis water, which prevents stains and streaks. We use state-of-the-art techniques like tucker pole systems and traditional washing techniques, so both large commercial buildings and hard-to-reach windows become crystal clear again.

In the Netherlands, window cleaners work according to NEN standards and occupational health and safety legislation. We adhere to all safety protocols and use safe climbing equipment or telescopic poles. This prevents damage to window frames and guarantees long-lasting results. This ensures a clear view of the outside world, fully in accordance with SIEV (Cleaning is a Profession) requirements.

How often should I have my windows cleaned?

The frequency depends on your location and needs. In an urban environment with high air pollution, we recommend window cleaning at least monthly. If your building is located on a busy road or industrial estate, cleaning it every two weeks will keep the windows looking good longer. For schools or healthcare facilities, you're focusing on a hygienic appearance, and monthly or even weekly cleanings are common.

At Groene Hart Cleaning Company, we tailor our cleaning protocol to your personal situation and glass type. Periodic cleaning extends the lifespan of your glass, prevents dirt from building up, and ensures continued compliance with the regulations of the Dutch Glass Industry Association. This way, you keep your investment at its peak.

Are there special techniques for high or hard-to-reach windows?

Certainly, for tall buildings or difficult-to-reach areas, we use increasingly advanced techniques. Telescopic window cleaning systems operate up to 20 meters high, ideal for offices, apartments, and institutions. We combine this with reverse osmosis water cleaning: lightweight carbon poles and pure water ensure streak-free results without any danger to the user or the surrounding area.

In some cases, we use rope access or an aerial work platform, fully compliant with European EN standards. This is a safe and efficient way to reach virtually anywhere without erecting scaffolding. Our certified experts follow the latest innovations from companies like Unger and Kärcher and always choose the smartest, safest solution for your location.

What are the advantages of window cleaning with osmosis water?

Osmosis water is pure, mineral-free water, produced using special filters. This results in truly streak-free windows: the osmosis water dries without leaving any lime or salt residue. With this professional technique, you can achieve a sparkling result even without cleaning agents, perfect for glass facades, conservatories, and façades.

Using reverse osmosis water extends the lifespan of your glass and window frames by preventing the buildup of harmful substances. We always use this technique for large projects because it's fast and efficient, has a low environmental impact, and, according to the RAS Cleaning Manual, is proven more effective than traditional methods. So you benefit from a sustainable and perfectly clean building.

What is the average cost of professional window cleaning in the Netherlands?

The cost of professional window cleaning depends on the number of windows, the type and accessibility of the building, and the chosen frequency. For an average commercial space, prices start at €45 per wash, but for larger buildings, unusual facades, or difficult-to-reach areas, prices are higher. We always prepare a competitive, customized quote, transparently and without surprises.

Many companies opt for a maintenance contract with a fixed monthly fee, for example, in combination with facade cleaning or solar panel cleaning. This is more cost-effective and provides peace of mind. The Cleaning Research Association (VSR) recommends choosing a reliable, certified partner, such as us at Groene Hart Cleaning Company, to ensure quality and safety are always guaranteed.

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