High-rise buildings have become a defining feature of modern skylines, but keeping them clean comes with unique challenges. Window cleaning at height requires not only specialist skills but also strict safety measures that protect operatives, building occupants and the public below.

So, what are the safest methods for high-rise window cleaning, and how can facilities managers be confident they are choosing a provider who works to the highest standards?

Why Safety Matters in High-Rise Cleaning

Cleaning at height is one of the most high-risk tasks in facilities management. The UK’s Work at Height Regulations 2005 place strict obligations on employers and contractors to use the safest possible methods. In practice, this means assessing every site individually and choosing the right technique for the building’s height, structure and access points.

Accidents can have serious consequences, not only for workers but also for the building’s reputation and liability. A professional provider ensures risks are minimised through proper planning, training, equipment and supervision.

For more detail on the legislation involved, see our blog: Are There Regulations Around Window Cleaning in the UK?

Rope Access (Abseiling)

One of the most recognised techniques for high-rise cleaning is rope access, also known as abseiling. This involves operatives descending the façade using ropes and harnesses anchored to the roof.

• Safety: Rope access is regulated by bodies such as IRATA (Industrial Rope Access Trade Association). When carried out by trained professionals, it is considered one of the safest methods due to rigorous equipment checks and strict procedures.

• Flexibility: It allows access to difficult or unusual building shapes where platforms or lifts cannot reach.

• Minimal disruption: As it requires less bulky equipment, it reduces disruption around the site.

For facilities managers, rope access is often the best choice for tall buildings with irregular designs or where other equipment would obstruct public areas.

Mobile Elevated Work Platforms (MEWPs)

MEWPs, such as cherry pickers and boom lifts, provide a stable platform from which operatives can clean windows at height.

• Safety: MEWPs are covered by both the Provision and Use of Work Equipment Regulations (PUWER) 1998 and the Work at Height Regulations 2005. Operatives must be trained (usually IPAF certified) to operate the machinery safely.

• Efficiency: They allow work to be completed quickly across large sections of glazing.

• Considerations: MEWPs require space at ground level and are limited by maximum reach, which may not be suitable for very tall towers.

When space allows, MEWPs provide a reliable and highly controlled option for buildings of medium-to-high height.

Building Maintenance Units (BMUs)

Some high-rise buildings are designed with their own Building Maintenance Units (BMUs). These are permanently installed cradles that run on tracks along the roofline.

• Safety: BMUs are purpose-built and designed in compliance with engineering and safety standards, offering a secure method of access.

• Consistency: Because they are part of the building’s infrastructure, they allow regular, scheduled cleaning without the need to bring in external equipment.

• Cost: Installing and maintaining a BMU is expensive, so they are typically found on very tall or iconic structures.

For landmark properties, BMUs are often the safest and most practical long-term solution.

Water-Fed Pole Systems

For buildings up to 6–8 storeys, water-fed poles provide a safe, ground-based option. Operatives use extendable poles with purified water systems to clean windows without leaving the ground.

• Safety: By eliminating the need to work at height, water-fed poles drastically reduce risk.

• Environmental benefits: Purified water reduces the need for harsh chemicals, supporting sustainability goals.

• Limitations: Poles cannot reach extreme heights and are less effective on heavily soiled or unusual façades.

For low-to-medium-rise sections of a building, this method provides a safe, cost-effective and sustainable option.

Safety Beyond the Method

The safest high-rise window cleaning relies on more than the chosen technique.

Training and Competence

Operatives must be trained in the safe use of equipment, working at height, and emergency procedures. Bodies such as IRATA and IPAF provide internationally recognised qualifications.

Risk Assessments and Method Statements

Each site must be individually assessed. A professional provider will create detailed risk assessments and method statements (RAMS) before work begins.

Equipment Maintenance

All equipment, from ropes to MEWPs, must be regularly inspected and logged to ensure compliance and safe operation.

Insurance and Accreditation

Reputable providers carry appropriate insurance and accreditations, offering reassurance that risks are properly managed.

For guidance on what to consider when appointing a contractor, see our blog What to Look for in a Window Cleaning Partner.

Comparing the Main Methods

Method	Height Suitability	Safety Level	Key Advantages	Limitations
Rope Access	Medium–very high	High (with IRATA)	Flexible, minimal disruption	Weather dependent, requires anchors
MEWPs	Low–medium high	High (with IPAF)	Efficient, stable platform	Needs ground space, reach limitations
BMUs	Very high iconic builds	Very high (engineered)	Purpose-built, consistent access	High cost, complex maintenance
Water-Fed Poles	Up to 6–8 storeys	Very high (ground-based)	Safe, sustainable, chemical-free	Height limits, less effective on grime

Why Choosing the Right Partner Matters

The safest method is not about following a trend but about choosing the right solution for each building. A professional partner will:

• Conduct site-specific risk assessments

• Provide trained and accredited operatives

• Recommend the safest, most cost-effective method

• Ensure compliance with UK health and safety law

• Align with sustainability goals through responsible product use

 

Get in Touch

At DOC Cleaning, we combine decades of experience with specialist expertise in high-rise window cleaning. Our teams are fully trained in rope access, MEWPs, water-fed poles and BMU operation, ensuring every project is delivered safely, responsibly and with minimal disruption.

If you’re looking for a partner who can manage high-rise cleaning with care and professionalism, contact us today to discuss how we can help.